Update dependencies

Closes #2129

go.mod

@@ -2,54 +2,50 @@ module github.com/restic/restic
 
 require (
 	bazil.org/fuse v0.0.0-20180421153158-65cc252bf669
-	cloud.google.com/go v0.27.0 // indirect
+	cloud.google.com/go v0.36.0 // indirect
-	github.com/Azure/azure-sdk-for-go v20.1.0+incompatible
+	contrib.go.opencensus.io/exporter/ocagent v0.4.3 // indirect
-	github.com/Azure/go-autorest v10.15.3+incompatible // indirect
+	github.com/Azure/azure-sdk-for-go v25.1.0+incompatible
-	github.com/cenkalti/backoff v2.0.0+incompatible
+	github.com/Azure/go-autorest v11.4.0+incompatible // indirect
+	github.com/cenkalti/backoff v2.1.1+incompatible
 	github.com/cpuguy83/go-md2man v1.0.8 // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dgrijalva/jwt-go v3.2.0+incompatible // indirect
-	github.com/dnaeon/go-vcr v0.0.0-20180814043457-aafff18a5cc2 // indirect
+	github.com/dnaeon/go-vcr v1.0.1 // indirect
 	github.com/elithrar/simple-scrypt v1.3.0
-	github.com/go-ini/ini v1.38.2 // indirect
+	github.com/go-ini/ini v1.41.0 // indirect
-	github.com/golang/protobuf v1.2.0 // indirect
 	github.com/google/go-cmp v0.2.0
-	github.com/gopherjs/gopherjs v0.0.0-20180825215210-0210a2f0f73c // indirect
+	github.com/gopherjs/gopherjs v0.0.0-20181103185306-d547d1d9531e // indirect
+	github.com/grpc-ecosystem/grpc-gateway v1.7.0 // indirect
 	github.com/hashicorp/golang-lru v0.5.0
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/jtolds/gls v4.2.1+incompatible // indirect
 	github.com/juju/ratelimit v1.0.1
 	github.com/kr/fs v0.1.0 // indirect
-	github.com/kr/pretty v0.1.0 // indirect
+	github.com/kurin/blazer v0.5.3
-	github.com/kurin/blazer v0.5.1
 	github.com/marstr/guid v1.1.0 // indirect
 	github.com/mattn/go-isatty v0.0.4
-	github.com/minio/minio-go v6.0.7+incompatible
+	github.com/minio/minio-go v6.0.14+incompatible
-	github.com/mitchellh/go-homedir v1.0.0 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
-	github.com/ncw/swift v1.0.41
+	github.com/ncw/swift v1.0.44
-	github.com/pkg/errors v0.8.0
+	github.com/pkg/errors v0.8.1
 	github.com/pkg/profile v1.2.1
-	github.com/pkg/sftp v1.8.2
+	github.com/pkg/sftp v1.10.0
-	github.com/pkg/xattr v0.3.1
+	github.com/pkg/xattr v0.4.0
-	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/restic/chunker v0.2.0
-	github.com/russross/blackfriday v1.5.1 // indirect
 	github.com/satori/go.uuid v1.2.0 // indirect
-	github.com/smartystreets/assertions v0.0.0-20180820201707-7c9eb446e3cf // indirect
+	github.com/smartystreets/assertions v0.0.0-20190116191733-b6c0e53d7304 // indirect
-	github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a // indirect
+	github.com/smartystreets/goconvey v0.0.0-20181108003508-044398e4856c // indirect
 	github.com/spf13/cobra v0.0.3
-	github.com/spf13/pflag v1.0.2
+	github.com/spf13/pflag v1.0.3
-	github.com/stretchr/testify v1.2.2 // indirect
+	github.com/stretchr/testify v1.3.0 // indirect
-	golang.org/x/crypto v0.0.0-20180904163835-0709b304e793
+	go.opencensus.io v0.19.0 // indirect
-	golang.org/x/net v0.0.0-20180906233101-161cd47e91fd
+	golang.org/x/crypto v0.0.0-20190208162236-193df9c0f06f
-	golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be
+	golang.org/x/net v0.0.0-20190206173232-65e2d4e15006
-	golang.org/x/sync v0.0.0-20180314180146-1d60e4601c6f
+	golang.org/x/oauth2 v0.0.0-20190130055435-99b60b757ec1
-	golang.org/x/sys v0.0.0-20180907202204-917fdcba135d
+	golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4
-	golang.org/x/text v0.3.0
+	golang.org/x/sys v0.0.0-20190209173611-3b5209105503
-	google.golang.org/api v0.0.0-20180907210053-b609d5e6b7ab
+	golang.org/x/text v0.3.1-0.20180807135948-17ff2d5776d2
-	google.golang.org/appengine v1.1.0 // indirect
+	google.golang.org/api v0.1.0
-	gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 // indirect
+	google.golang.org/grpc v1.18.0 // indirect
-	gopkg.in/ini.v1 v1.38.2 // indirect
+	gopkg.in/ini.v1 v1.41.0 // indirect
 	gopkg.in/tomb.v2 v2.0.0-20161208151619-d5d1b5820637
-	gopkg.in/yaml.v2 v2.2.1 // indirect
 )

go.sum

@@ -1,108 +1,266 @@
 bazil.org/fuse v0.0.0-20180421153158-65cc252bf669 h1:FNCRpXiquG1aoyqcIWVFmpTSKVcx2bQD38uZZeGtdlw=
 bazil.org/fuse v0.0.0-20180421153158-65cc252bf669/go.mod h1:Xbm+BRKSBEpa4q4hTSxohYNQpsxXPbPry4JJWOB3LB8=
-cloud.google.com/go v0.27.0 h1:Xa8ZWro6QYKOwDKtxfKsiE0ea2jD39nx32RxtF5RjYE=
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-cloud.google.com/go v0.27.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+cloud.google.com/go v0.31.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/Azure/azure-sdk-for-go v20.1.0+incompatible h1:b8OWFQuH5MPi2LYyAR2Ga+7KVH9ipwiSSSMga04/Urc=
+cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/Azure/azure-sdk-for-go v20.1.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
+cloud.google.com/go v0.36.0 h1:+aCSj7tOo2LODWVEuZDZeGCckdt6MlSF+X/rB3wUiS8=
-github.com/Azure/go-autorest v10.15.3+incompatible h1:nhKI/bvazIs3C3TFGoSqKY6hZ8f5od5mb5/UcS6HVIY=
+cloud.google.com/go v0.36.0/go.mod h1:RUoy9p/M4ge0HzT8L+SDZ8jg+Q6fth0CiBuhFJpSV40=
-github.com/Azure/go-autorest v10.15.3+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
+contrib.go.opencensus.io/exporter/ocagent v0.4.3 h1:QjNm697iO7CZ09IxxSiCUzOhALENIsLsixdPwjV1yGs=
-github.com/cenkalti/backoff v2.0.0+incompatible h1:5IIPUHhlnUZbcHQsQou5k1Tn58nJkeJL9U+ig5CHJbY=
+contrib.go.opencensus.io/exporter/ocagent v0.4.3/go.mod h1:YuG83h+XWwqWjvCqn7vK4KSyLKhThY3+gNGQ37iS2V0=
-github.com/cenkalti/backoff v2.0.0+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
+dmitri.shuralyov.com/app/changes v0.0.0-20180602232624-0a106ad413e3/go.mod h1:Yl+fi1br7+Rr3LqpNJf1/uxUdtRUV+Tnj0o93V2B9MU=
+dmitri.shuralyov.com/html/belt v0.0.0-20180602232347-f7d459c86be0/go.mod h1:JLBrvjyP0v+ecvNYvCpyZgu5/xkfAUhi6wJj28eUfSU=
+dmitri.shuralyov.com/service/change v0.0.0-20181023043359-a85b471d5412/go.mod h1:a1inKt/atXimZ4Mv927x+r7UpyzRUf4emIoiiSC2TN4=
+dmitri.shuralyov.com/state v0.0.0-20180228185332-28bcc343414c/go.mod h1:0PRwlb0D6DFvNNtx+9ybjezNCa8XF0xaYcETyp6rHWU=
+git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
+git.apache.org/thrift.git v0.0.0-20181218151757-9b75e4fe745a/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
+github.com/Azure/azure-sdk-for-go v25.1.0+incompatible h1:bA8mqsHUc9RbzHG64A6r7KnpvLFHJdxrpI75FrFln2M=
+github.com/Azure/azure-sdk-for-go v25.1.0+incompatible/go.mod h1:9XXNKU+eRnpl9moKnB4QOLf1HestfXbmab5FXxiDBjc=
+github.com/Azure/go-autorest v11.4.0+incompatible h1:z3Yr6KYqs0nhSNwqGXEBpWK977hxVqsLv2n9PVYcixY=
+github.com/Azure/go-autorest v11.4.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24=
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/anmitsu/go-shlex v0.0.0-20161002113705-648efa622239/go.mod h1:2FmKhYUyUczH0OGQWaF5ceTx0UBShxjsH6f8oGKYe2c=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/bradfitz/go-smtpd v0.0.0-20170404230938-deb6d6237625/go.mod h1:HYsPBTaaSFSlLx/70C2HPIMNZpVV8+vt/A+FMnYP11g=
+github.com/cenkalti/backoff v2.1.1+incompatible h1:tKJnvO2kl0zmb/jA5UKAt4VoEVw1qxKWjE/Bpp46npY=
+github.com/cenkalti/backoff v2.1.1+incompatible/go.mod h1:90ReRw6GdpyfrHakVjL/QHaoyV4aDUVVkXQJJJ3NXXM=
+github.com/census-instrumentation/opencensus-proto v0.1.0-0.20181214143942-ba49f56771b8 h1:gUqsFVdUKoRHNg8fkFd8gB5OOEa/g5EwlAHznb4zjbI=
+github.com/census-instrumentation/opencensus-proto v0.1.0-0.20181214143942-ba49f56771b8/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
+github.com/coreos/go-systemd v0.0.0-20181012123002-c6f51f82210d/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
 github.com/cpuguy83/go-md2man v1.0.8 h1:DwoNytLphI8hzS2Af4D0dfaEaiSq2bN05mEm4R6vf8M=
 github.com/cpuguy83/go-md2man v1.0.8/go.mod h1:N6JayAiVKtlHSnuTCeuLSQVs75hb8q+dYQLjr7cDsKY=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
 github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
-github.com/dnaeon/go-vcr v0.0.0-20180814043457-aafff18a5cc2 h1:G9/PqfhOrt8JXnw0DGTfVoOkKHDhOlEZqhE/cu+NvQM=
+github.com/dnaeon/go-vcr v1.0.1 h1:r8L/HqC0Hje5AXMu1ooW8oyQyOFv4GxqpL0nRP7SLLY=
-github.com/dnaeon/go-vcr v0.0.0-20180814043457-aafff18a5cc2/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
+github.com/dnaeon/go-vcr v1.0.1/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
+github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
 github.com/elithrar/simple-scrypt v1.3.0 h1:KIlOlxdoQf9JWKl5lMAJ28SY2URB0XTRDn2TckyzAZg=
 github.com/elithrar/simple-scrypt v1.3.0/go.mod h1:U2XQRI95XHY0St410VE3UjT7vuKb1qPwrl/EJwEqnZo=
-github.com/go-ini/ini v1.38.2 h1:6Hl/z3p3iFkA0dlDfzYxuFuUGD+kaweypF6btsR2/Q4=
+github.com/flynn/go-shlex v0.0.0-20150515145356-3f9db97f8568/go.mod h1:xEzjJPgXI435gkrCt3MPfRiAkVrwSbHsst4LCFVfpJc=
-github.com/go-ini/ini v1.38.2/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
+github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
+github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
+github.com/gliderlabs/ssh v0.1.1/go.mod h1:U7qILu1NlMHj9FlMhZLlkCdDnU1DBEAqr0aevW3Awn0=
+github.com/go-ini/ini v1.41.0 h1:526aoxDtxRHFQKMZfcX2OG9oOI8TJ5yPLM0Mkno/uTY=
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+github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/lint v0.0.0-20180702182130-06c8688daad7/go.mod h1:tluoj9z5200jBnyusfRPU2LqT6J+DAorxEvtC7LHB+E=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/mock v1.2.0/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
 github.com/golang/protobuf v1.2.0 h1:P3YflyNX/ehuJFLhxviNdFxQPkGK5cDcApsge1SqnvM=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
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-github.com/gopherjs/gopherjs v0.0.0-20180825215210-0210a2f0f73c h1:16eHWuMGvCjSfgRJKqIzapE78onvvTbdi1rMkU00lZw=
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-github.com/gopherjs/gopherjs v0.0.0-20180825215210-0210a2f0f73c/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
+github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
+github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
+github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
+github.com/googleapis/gax-go v2.0.0+incompatible/go.mod h1:SFVmujtThgffbyetf+mdk2eWhX2bMyUtNHzFKcPA9HY=
+github.com/googleapis/gax-go/v2 v2.0.3/go.mod h1:LLvjysVCY1JZeum8Z6l8qUty8fiNwE08qbEPm1M08qg=
+github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
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+github.com/gregjones/httpcache v0.0.0-20180305231024-9cad4c3443a7/go.mod h1:FecbI9+v66THATjSRHfNgh1IVFe/9kFxbXtjV0ctIMA=
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+github.com/grpc-ecosystem/grpc-gateway v1.6.2/go.mod h1:RSKVYQBd5MCa4OVpNdGskqpgL2+G+NZTnrVHpWWfpdw=
+github.com/grpc-ecosystem/grpc-gateway v1.7.0 h1:tPFY/SM+d656aSgLWO2Eckc3ExwpwwybwdN5Ph20h1A=
+github.com/grpc-ecosystem/grpc-gateway v1.7.0/go.mod h1:RSKVYQBd5MCa4OVpNdGskqpgL2+G+NZTnrVHpWWfpdw=
 github.com/hashicorp/golang-lru v0.5.0 h1:CL2msUPvZTLb5O648aiLNJw3hnBxN2+1Jq8rCOH9wdo=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
 github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/jellevandenhooff/dkim v0.0.0-20150330215556-f50fe3d243e1/go.mod h1:E0B/fFc00Y+Rasa88328GlI/XbtyysCtTHZS8h7IrBU=
 github.com/jtolds/gls v4.2.1+incompatible h1:fSuqC+Gmlu6l/ZYAoZzx2pyucC8Xza35fpRVWLVmUEE=
 github.com/jtolds/gls v4.2.1+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
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 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be h1:vEDujvNQGv4jgYKudGeI/+DAX4Jffq6hpD55MmoEvKs=
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+google.golang.org/grpc v1.15.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
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+gopkg.in/yaml.v2 v2.2.2 h1:ZCJp+EgiOT7lHqUV2J862kp8Qj64Jo6az82+3Td9dZw=
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+honnef.co/go/tools v0.0.0-20180920025451-e3ad64cb4ed3/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
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+sourcegraph.com/sourcegraph/go-diff v0.5.0/go.mod h1:kuch7UrkMzY0X+p9CRK03kfuPQ2zzQcaEFbx8wA8rck=
+sourcegraph.com/sqs/pbtypes v0.0.0-20180604144634-d3ebe8f20ae4/go.mod h1:ketZ/q3QxT9HOBeFhu6RdvsftgpsbFHBF5Cas6cDKZ0=

vendor/cloud.google.com/go/compute/metadata/metadata.go

@@ -20,6 +20,7 @@
 package metadata // import "cloud.google.com/go/compute/metadata"
 
 import (
+	"context"
 	"encoding/json"
 	"fmt"
 	"io/ioutil"
@@ -31,9 +32,6 @@ import (
 	"strings"
 	"sync"
 	"time"
-
-	"golang.org/x/net/context"
-	"golang.org/x/net/context/ctxhttp"
 )
 
 const (
@@ -139,11 +137,11 @@ func testOnGCE() bool {
 	resc := make(chan bool, 2)
 
 	// Try two strategies in parallel.
-	// See https://github.com/GoogleCloudPlatform/google-cloud-go/issues/194
+	// See https://github.com/googleapis/google-cloud-go/issues/194
 	go func() {
 		req, _ := http.NewRequest("GET", "http://"+metadataIP, nil)
 		req.Header.Set("User-Agent", userAgent)
-		res, err := ctxhttp.Do(ctx, defaultClient.hc, req)
+		res, err := defaultClient.hc.Do(req.WithContext(ctx))
 		if err != nil {
 			resc <- false
 			return
@@ -302,8 +300,8 @@ func (c *Client) getETag(suffix string) (value, etag string, err error) {
 		// being stable anyway.
 		host = metadataIP
 	}
-	url := "http://" + host + "/computeMetadata/v1/" + suffix
+	u := "http://" + host + "/computeMetadata/v1/" + suffix
-	req, _ := http.NewRequest("GET", url, nil)
+	req, _ := http.NewRequest("GET", u, nil)
 	req.Header.Set("Metadata-Flavor", "Google")
 	req.Header.Set("User-Agent", userAgent)
 	res, err := c.hc.Do(req)
@@ -314,13 +312,13 @@ func (c *Client) getETag(suffix string) (value, etag string, err error) {
 	if res.StatusCode == http.StatusNotFound {
 		return "", "", NotDefinedError(suffix)
 	}
-	if res.StatusCode != 200 {
-		return "", "", fmt.Errorf("status code %d trying to fetch %s", res.StatusCode, url)
-	}
 	all, err := ioutil.ReadAll(res.Body)
 	if err != nil {
 		return "", "", err
 	}
+	if res.StatusCode != 200 {
+		return "", "", &Error{Code: res.StatusCode, Message: string(all)}
+	}
 	return string(all), res.Header.Get("Etag"), nil
 }
 
@@ -501,3 +499,15 @@ func (c *Client) Subscribe(suffix string, fn func(v string, ok bool) error) erro
 		}
 	}
 }
+
+// Error contains an error response from the server.
+type Error struct {
+	// Code is the HTTP response status code.
+	Code int
+	// Message is the server response message.
+	Message string
+}
+
+func (e *Error) Error() string {
+	return fmt.Sprintf("compute: Received %d `%s`", e.Code, e.Message)
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/.travis.yml

@@ -0,0 +1,17 @@
+language: go
+
+go:
+  - 1.11.x
+
+go_import_path: contrib.go.opencensus.io/exporter/ocagent
+
+before_script:
+  - GO_FILES=$(find . -iname '*.go' | grep -v /vendor/)  # All the .go files, excluding vendor/ if any
+  - PKGS=$(go list ./... | grep -v /vendor/)             # All the import paths, excluding vendor/ if any
+
+script:
+  - go build ./...                    # Ensure dependency updates don't break build
+  - if [ -n "$(gofmt -s -l $GO_FILES)" ]; then echo "gofmt the following files:"; gofmt -s -l $GO_FILES; exit 1; fi
+  - go vet ./...
+  - go test -v -race $PKGS            # Run all the tests with the race detector enabled
+  - 'if [[ $TRAVIS_GO_VERSION = 1.8* ]]; then ! golint ./... | grep -vE "(_mock|_string|\.pb)\.go:"; fi'

vendor/contrib.go.opencensus.io/exporter/ocagent/CONTRIBUTING.md

@@ -0,0 +1,24 @@
+# How to contribute
+
+We'd love to accept your patches and contributions to this project. There are
+just a few small guidelines you need to follow.
+
+## Contributor License Agreement
+
+Contributions to this project must be accompanied by a Contributor License
+Agreement. You (or your employer) retain the copyright to your contribution,
+this simply gives us permission to use and redistribute your contributions as
+part of the project. Head over to <https://cla.developers.google.com/> to see
+your current agreements on file or to sign a new one.
+
+You generally only need to submit a CLA once, so if you've already submitted one
+(even if it was for a different project), you probably don't need to do it
+again.
+
+## Code reviews
+
+All submissions, including submissions by project members, require review. We
+use GitHub pull requests for this purpose. Consult [GitHub Help] for more
+information on using pull requests.
+
+[GitHub Help]: https://help.github.com/articles/about-pull-requests/

vendor/contrib.go.opencensus.io/exporter/ocagent/LICENSE

@@ -0,0 +1,201 @@
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
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+
+   Unless required by applicable law or agreed to in writing, software
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+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/contrib.go.opencensus.io/exporter/ocagent/README.md

@@ -0,0 +1,61 @@
+# OpenCensus Agent Go Exporter
+
+[![Build Status][travis-image]][travis-url] [![GoDoc][godoc-image]][godoc-url]
+
+
+This repository contains the Go implementation of the OpenCensus Agent (OC-Agent) Exporter.
+OC-Agent is a deamon process running in a VM that can retrieve spans/stats/metrics from
+OpenCensus Library, export them to other backends and possibly push configurations back to
+Library. See more details on [OC-Agent Readme][OCAgentReadme].
+
+Note: This is an experimental repository and is likely to get backwards-incompatible changes.
+Ultimately we may want to move the OC-Agent Go Exporter to [OpenCensus Go core library][OpenCensusGo].
+
+## Installation
+
+```bash
+$ go get -u contrib.go.opencensus.io/exporter/ocagent
+```
+
+## Usage
+
+```go
+import (
+	"context"
+	"fmt"
+	"log"
+	"time"
+
+	"contrib.go.opencensus.io/exporter/ocagent"
+	"go.opencensus.io/trace"
+)
+
+func Example() {
+	exp, err := ocagent.NewExporter(ocagent.WithInsecure(), ocagent.WithServiceName("your-service-name"))
+	if err != nil {
+		log.Fatalf("Failed to create the agent exporter: %v", err)
+	}
+	defer exp.Stop()
+
+	// Now register it as a trace exporter.
+	trace.RegisterExporter(exp)
+
+	// Then use the OpenCensus tracing library, like we normally would.
+	ctx, span := trace.StartSpan(context.Background(), "AgentExporter-Example")
+	defer span.End()
+
+	for i := 0; i < 10; i++ {
+		_, iSpan := trace.StartSpan(ctx, fmt.Sprintf("Sample-%d", i))
+		<-time.After(6 * time.Millisecond)
+		iSpan.End()
+	}
+}
+```
+
+[OCAgentReadme]: https://github.com/census-instrumentation/opencensus-proto/tree/master/opencensus/proto/agent#opencensus-agent-proto
+[OpenCensusGo]: https://github.com/census-instrumentation/opencensus-go
+[godoc-image]: https://godoc.org/contrib.go.opencensus.io/exporter/ocagent?status.svg
+[godoc-url]: https://godoc.org/contrib.go.opencensus.io/exporter/ocagent
+[travis-image]: https://travis-ci.org/census-ecosystem/opencensus-go-exporter-ocagent.svg?branch=master
+[travis-url]: https://travis-ci.org/census-ecosystem/opencensus-go-exporter-ocagent
+

vendor/contrib.go.opencensus.io/exporter/ocagent/common.go

@@ -0,0 +1,38 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+import (
+	"math/rand"
+	"time"
+)
+
+var randSrc = rand.New(rand.NewSource(time.Now().UnixNano()))
+
+// retries function fn upto n times, if fn returns an error lest it returns nil early.
+// It applies exponential backoff in units of (1<<n) + jitter microsends.
+func nTriesWithExponentialBackoff(nTries int64, timeBaseUnit time.Duration, fn func() error) (err error) {
+	for i := int64(0); i < nTries; i++ {
+		err = fn()
+		if err == nil {
+			return nil
+		}
+		// Backoff for a time period with a pseudo-random jitter
+		jitter := time.Duration(randSrc.Float64()*100) * time.Microsecond
+		ts := jitter + ((1 << uint64(i)) * timeBaseUnit)
+		<-time.After(ts)
+	}
+	return err
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/connection.go

@@ -0,0 +1,94 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+import (
+	"math/rand"
+	"sync/atomic"
+	"time"
+)
+
+const (
+	sDisconnected int32 = 5 + iota
+	sConnected
+)
+
+func (ae *Exporter) setStateDisconnected() {
+	atomic.StoreInt32(&ae.connectionState, sDisconnected)
+	ae.disconnectedCh <- true
+}
+
+func (ae *Exporter) setStateConnected() {
+	atomic.StoreInt32(&ae.connectionState, sConnected)
+}
+
+func (ae *Exporter) connected() bool {
+	return atomic.LoadInt32(&ae.connectionState) == sConnected
+}
+
+const defaultConnReattemptPeriod = 10 * time.Second
+
+func (ae *Exporter) indefiniteBackgroundConnection() error {
+	defer func() {
+		ae.backgroundConnectionDoneCh <- true
+	}()
+
+	connReattemptPeriod := ae.reconnectionPeriod
+	if connReattemptPeriod <= 0 {
+		connReattemptPeriod = defaultConnReattemptPeriod
+	}
+
+	// No strong seeding required, nano time can
+	// already help with pseudo uniqueness.
+	rng := rand.New(rand.NewSource(time.Now().UnixNano() + rand.Int63n(1024)))
+
+	// maxJitter: 1 + (70% of the connectionReattemptPeriod)
+	maxJitter := int64(1 + 0.7*float64(connReattemptPeriod))
+
+	for {
+		// Otherwise these will be the normal scenarios to enable
+		// reconnections if we trip out.
+		// 1. If we've stopped, return entirely
+		// 2. Otherwise block until we are disconnected, and
+		//    then retry connecting
+		select {
+		case <-ae.stopCh:
+			return errStopped
+
+		case <-ae.disconnectedCh:
+			// Normal scenario that we'll wait for
+		}
+
+		if err := ae.connect(); err == nil {
+			ae.setStateConnected()
+		} else {
+			ae.setStateDisconnected()
+		}
+
+		// Apply some jitter to avoid lockstep retrials of other
+		// agent-exporters. Lockstep retrials could result in an
+		// innocent DDOS, by clogging the machine's resources and network.
+		jitter := time.Duration(rng.Int63n(maxJitter))
+		<-time.After(connReattemptPeriod + jitter)
+	}
+}
+
+func (ae *Exporter) connect() error {
+	cc, err := ae.dialToAgent()
+	if err != nil {
+		return err
+	}
+	return ae.enableConnectionStreams(cc)
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/go.mod

@@ -0,0 +1,9 @@
+module contrib.go.opencensus.io/exporter/ocagent
+
+require (
+	github.com/census-instrumentation/opencensus-proto v0.1.0-0.20181214143942-ba49f56771b8 // this is to match the version used in census-instrumentation/opencensus-service
+	github.com/golang/protobuf v1.2.0
+	go.opencensus.io v0.18.1-0.20181204023538-aab39bd6a98b
+	google.golang.org/api v0.0.0-20180910000450-7ca32eb868bf
+	google.golang.org/grpc v1.15.0
+)

vendor/contrib.go.opencensus.io/exporter/ocagent/go.sum

@@ -0,0 +1,55 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
+git.apache.org/thrift.git v0.0.0-20180902110319-2566ecd5d999/go.mod h1:fPE2ZNJGynbRyZ4dJvy6G277gSllfV2HJqblrnkyeyg=
+github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
+github.com/census-instrumentation/opencensus-proto v0.0.1 h1:4v5I+ax5jCmwTYVaWQacX8ZSxvUZemBX4UwBGSkDeoA=
+github.com/census-instrumentation/opencensus-proto v0.0.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
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+github.com/census-instrumentation/opencensus-proto v0.0.2-0.20180913191712-f303ae3f8d6a/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
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+github.com/ghodss/yaml v1.0.0/go.mod h1:4dBDuWmgqj2HViK6kFavaiC9ZROes6MMH2rRYeMEF04=
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+google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
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+google.golang.org/grpc v1.14.0/go.mod h1:yo6s7OP7yaDglbqo1J04qKzAhqBH6lvTonzMVmEdcZw=
+google.golang.org/grpc v1.15.0 h1:Az/KuahOM4NAidTEuJCv/RonAA7rYsTPkqXVjr+8OOw=
+google.golang.org/grpc v1.15.0/go.mod h1:0JHn/cJsOMiMfNA9+DeHDlAU7KAAB5GDlYFpa9MZMio=
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+gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+honnef.co/go/tools v0.0.0-20180728063816-88497007e858/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

vendor/contrib.go.opencensus.io/exporter/ocagent/nodeinfo.go

@@ -0,0 +1,46 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+import (
+	"os"
+
+	commonpb "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
+	"go.opencensus.io"
+)
+
+// NodeWithStartTime creates a node using nodeName and derives:
+//  Hostname from the environment
+//  Pid from the current process
+//  StartTimestamp from the start time of this process
+//  Language and library information.
+func NodeWithStartTime(nodeName string) *commonpb.Node {
+	return &commonpb.Node{
+		Identifier: &commonpb.ProcessIdentifier{
+			HostName:       os.Getenv("HOSTNAME"),
+			Pid:            uint32(os.Getpid()),
+			StartTimestamp: timeToTimestamp(startTime),
+		},
+		LibraryInfo: &commonpb.LibraryInfo{
+			Language:           commonpb.LibraryInfo_GO_LANG,
+			ExporterVersion:    Version,
+			CoreLibraryVersion: opencensus.Version(),
+		},
+		ServiceInfo: &commonpb.ServiceInfo{
+			Name: nodeName,
+		},
+		Attributes: make(map[string]string),
+	}
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/ocagent.go

@@ -0,0 +1,478 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"sync"
+	"time"
+
+	"google.golang.org/api/support/bundler"
+	"google.golang.org/grpc"
+
+	"go.opencensus.io/resource"
+	"go.opencensus.io/stats/view"
+	"go.opencensus.io/trace"
+
+	commonpb "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
+	agentmetricspb "github.com/census-instrumentation/opencensus-proto/gen-go/agent/metrics/v1"
+	agenttracepb "github.com/census-instrumentation/opencensus-proto/gen-go/agent/trace/v1"
+	metricspb "github.com/census-instrumentation/opencensus-proto/gen-go/metrics/v1"
+	resourcepb "github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1"
+	tracepb "github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1"
+)
+
+var startupMu sync.Mutex
+var startTime time.Time
+
+func init() {
+	startupMu.Lock()
+	startTime = time.Now()
+	startupMu.Unlock()
+}
+
+var _ trace.Exporter = (*Exporter)(nil)
+var _ view.Exporter = (*Exporter)(nil)
+
+type Exporter struct {
+	connectionState int32
+
+	// mu protects the non-atomic and non-channel variables
+	mu sync.RWMutex
+	// senderMu protects the concurrent unsafe traceExporter client
+	senderMu           sync.RWMutex
+	started            bool
+	stopped            bool
+	agentAddress       string
+	serviceName        string
+	canDialInsecure    bool
+	traceExporter      agenttracepb.TraceService_ExportClient
+	metricsExporter    agentmetricspb.MetricsService_ExportClient
+	nodeInfo           *commonpb.Node
+	grpcClientConn     *grpc.ClientConn
+	reconnectionPeriod time.Duration
+	resource           *resourcepb.Resource
+	compressor         string
+
+	startOnce      sync.Once
+	stopCh         chan bool
+	disconnectedCh chan bool
+
+	backgroundConnectionDoneCh chan bool
+
+	traceBundler *bundler.Bundler
+
+	// viewDataBundler is the bundler to enable conversion
+	// from OpenCensus-Go view.Data to metricspb.Metric.
+	// Please do not confuse it with metricsBundler!
+	viewDataBundler *bundler.Bundler
+}
+
+func NewExporter(opts ...ExporterOption) (*Exporter, error) {
+	exp, err := NewUnstartedExporter(opts...)
+	if err != nil {
+		return nil, err
+	}
+	if err := exp.Start(); err != nil {
+		return nil, err
+	}
+	return exp, nil
+}
+
+const spanDataBufferSize = 300
+
+func NewUnstartedExporter(opts ...ExporterOption) (*Exporter, error) {
+	e := new(Exporter)
+	for _, opt := range opts {
+		opt.withExporter(e)
+	}
+	traceBundler := bundler.NewBundler((*trace.SpanData)(nil), func(bundle interface{}) {
+		e.uploadTraces(bundle.([]*trace.SpanData))
+	})
+	traceBundler.DelayThreshold = 2 * time.Second
+	traceBundler.BundleCountThreshold = spanDataBufferSize
+	e.traceBundler = traceBundler
+
+	viewDataBundler := bundler.NewBundler((*view.Data)(nil), func(bundle interface{}) {
+		e.uploadViewData(bundle.([]*view.Data))
+	})
+	viewDataBundler.DelayThreshold = 2 * time.Second
+	viewDataBundler.BundleCountThreshold = 500 // TODO: (@odeke-em) make this configurable.
+	e.viewDataBundler = viewDataBundler
+	e.nodeInfo = NodeWithStartTime(e.serviceName)
+	e.resource = resourceProtoFromEnv()
+
+	return e, nil
+}
+
+const (
+	maxInitialConfigRetries = 10
+	maxInitialTracesRetries = 10
+)
+
+var (
+	errAlreadyStarted = errors.New("already started")
+	errNotStarted     = errors.New("not started")
+	errStopped        = errors.New("stopped")
+	errNoConnection   = errors.New("no active connection")
+)
+
+// Start dials to the agent, establishing a connection to it. It also
+// initiates the Config and Trace services by sending over the initial
+// messages that consist of the node identifier. Start invokes a background
+// connector that will reattempt connections to the agent periodically
+// if the connection dies.
+func (ae *Exporter) Start() error {
+	var err = errAlreadyStarted
+	ae.startOnce.Do(func() {
+		ae.mu.Lock()
+		defer ae.mu.Unlock()
+
+		ae.started = true
+		ae.disconnectedCh = make(chan bool, 1)
+		ae.stopCh = make(chan bool)
+		ae.backgroundConnectionDoneCh = make(chan bool)
+
+		ae.setStateDisconnected()
+		go ae.indefiniteBackgroundConnection()
+
+		err = nil
+	})
+
+	return err
+}
+
+func (ae *Exporter) prepareAgentAddress() string {
+	if ae.agentAddress != "" {
+		return ae.agentAddress
+	}
+	return fmt.Sprintf("%s:%d", DefaultAgentHost, DefaultAgentPort)
+}
+
+func (ae *Exporter) enableConnectionStreams(cc *grpc.ClientConn) error {
+	ae.mu.RLock()
+	started := ae.started
+	nodeInfo := ae.nodeInfo
+	ae.mu.RUnlock()
+
+	if !started {
+		return errNotStarted
+	}
+
+	ae.mu.Lock()
+	// If the previous clientConn was non-nil, close it
+	if ae.grpcClientConn != nil {
+		_ = ae.grpcClientConn.Close()
+	}
+	ae.grpcClientConn = cc
+	ae.mu.Unlock()
+
+	if err := ae.createTraceServiceConnection(ae.grpcClientConn, nodeInfo); err != nil {
+		return err
+	}
+
+	return ae.createMetricsServiceConnection(ae.grpcClientConn, nodeInfo)
+}
+
+func (ae *Exporter) createTraceServiceConnection(cc *grpc.ClientConn, node *commonpb.Node) error {
+	// Initiate the trace service by sending over node identifier info.
+	traceSvcClient := agenttracepb.NewTraceServiceClient(cc)
+	traceExporter, err := traceSvcClient.Export(context.Background())
+	if err != nil {
+		return fmt.Errorf("Exporter.Start:: TraceServiceClient: %v", err)
+	}
+
+	firstTraceMessage := &agenttracepb.ExportTraceServiceRequest{
+		Node:     node,
+		Resource: ae.resource,
+	}
+	if err := traceExporter.Send(firstTraceMessage); err != nil {
+		return fmt.Errorf("Exporter.Start:: Failed to initiate the Config service: %v", err)
+	}
+
+	ae.mu.Lock()
+	ae.traceExporter = traceExporter
+	ae.mu.Unlock()
+
+	// Initiate the config service by sending over node identifier info.
+	configStream, err := traceSvcClient.Config(context.Background())
+	if err != nil {
+		return fmt.Errorf("Exporter.Start:: ConfigStream: %v", err)
+	}
+	firstCfgMessage := &agenttracepb.CurrentLibraryConfig{Node: node}
+	if err := configStream.Send(firstCfgMessage); err != nil {
+		return fmt.Errorf("Exporter.Start:: Failed to initiate the Config service: %v", err)
+	}
+
+	// In the background, handle trace configurations that are beamed down
+	// by the agent, but also reply to it with the applied configuration.
+	go ae.handleConfigStreaming(configStream)
+
+	return nil
+}
+
+func (ae *Exporter) createMetricsServiceConnection(cc *grpc.ClientConn, node *commonpb.Node) error {
+	metricsSvcClient := agentmetricspb.NewMetricsServiceClient(cc)
+	metricsExporter, err := metricsSvcClient.Export(context.Background())
+	if err != nil {
+		return fmt.Errorf("MetricsExporter: failed to start the service client: %v", err)
+	}
+	// Initiate the metrics service by sending over the first message just containing the Node and Resource.
+	firstMetricsMessage := &agentmetricspb.ExportMetricsServiceRequest{
+		Node:     node,
+		Resource: ae.resource,
+	}
+	if err := metricsExporter.Send(firstMetricsMessage); err != nil {
+		return fmt.Errorf("MetricsExporter:: failed to send the first message: %v", err)
+	}
+
+	ae.mu.Lock()
+	ae.metricsExporter = metricsExporter
+	ae.mu.Unlock()
+
+	// With that we are good to go and can start sending metrics
+	return nil
+}
+
+func (ae *Exporter) dialToAgent() (*grpc.ClientConn, error) {
+	addr := ae.prepareAgentAddress()
+	var dialOpts []grpc.DialOption
+	if ae.canDialInsecure {
+		dialOpts = append(dialOpts, grpc.WithInsecure())
+	}
+	if ae.compressor != "" {
+		dialOpts = append(dialOpts, grpc.WithDefaultCallOptions(grpc.UseCompressor(ae.compressor)))
+	}
+	return grpc.Dial(addr, dialOpts...)
+}
+
+func (ae *Exporter) handleConfigStreaming(configStream agenttracepb.TraceService_ConfigClient) error {
+	// Note: We haven't yet implemented configuration sending so we
+	// should NOT be changing connection states within this function for now.
+	for {
+		recv, err := configStream.Recv()
+		if err != nil {
+			// TODO: Check if this is a transient error or exponential backoff-able.
+			return err
+		}
+		cfg := recv.Config
+		if cfg == nil {
+			continue
+		}
+
+		// Otherwise now apply the trace configuration sent down from the agent
+		if psamp := cfg.GetProbabilitySampler(); psamp != nil {
+			trace.ApplyConfig(trace.Config{DefaultSampler: trace.ProbabilitySampler(psamp.SamplingProbability)})
+		} else if csamp := cfg.GetConstantSampler(); csamp != nil {
+			alwaysSample := csamp.Decision == true
+			if alwaysSample {
+				trace.ApplyConfig(trace.Config{DefaultSampler: trace.AlwaysSample()})
+			} else {
+				trace.ApplyConfig(trace.Config{DefaultSampler: trace.NeverSample()})
+			}
+		} else { // TODO: Add the rate limiting sampler here
+		}
+
+		// Then finally send back to upstream the newly applied configuration
+		err = configStream.Send(&agenttracepb.CurrentLibraryConfig{Config: &tracepb.TraceConfig{Sampler: cfg.Sampler}})
+		if err != nil {
+			return err
+		}
+	}
+}
+
+// Stop shuts down all the connections and resources
+// related to the exporter.
+func (ae *Exporter) Stop() error {
+	ae.mu.RLock()
+	cc := ae.grpcClientConn
+	started := ae.started
+	stopped := ae.stopped
+	ae.mu.RUnlock()
+
+	if !started {
+		return errNotStarted
+	}
+	if stopped {
+		// TODO: tell the user that we've already stopped, so perhaps a sentinel error?
+		return nil
+	}
+
+	ae.Flush()
+
+	// Now close the underlying gRPC connection.
+	var err error
+	if cc != nil {
+		err = cc.Close()
+	}
+
+	// At this point we can change the state variables: started and stopped
+	ae.mu.Lock()
+	ae.started = false
+	ae.stopped = true
+	ae.mu.Unlock()
+	close(ae.stopCh)
+
+	// Ensure that the backgroundConnector returns
+	<-ae.backgroundConnectionDoneCh
+
+	return err
+}
+
+func (ae *Exporter) ExportSpan(sd *trace.SpanData) {
+	if sd == nil {
+		return
+	}
+	_ = ae.traceBundler.Add(sd, 1)
+}
+
+func (ae *Exporter) ExportTraceServiceRequest(batch *agenttracepb.ExportTraceServiceRequest) error {
+	if batch == nil || len(batch.Spans) == 0 {
+		return nil
+	}
+
+	select {
+	case <-ae.stopCh:
+		return errStopped
+
+	default:
+		if !ae.connected() {
+			return errNoConnection
+		}
+
+		ae.senderMu.Lock()
+		err := ae.traceExporter.Send(batch)
+		ae.senderMu.Unlock()
+		if err != nil {
+			ae.setStateDisconnected()
+			return err
+		}
+		return nil
+	}
+}
+
+func (ae *Exporter) ExportView(vd *view.Data) {
+	if vd == nil {
+		return
+	}
+	_ = ae.viewDataBundler.Add(vd, 1)
+}
+
+func ocSpanDataToPbSpans(sdl []*trace.SpanData) []*tracepb.Span {
+	if len(sdl) == 0 {
+		return nil
+	}
+	protoSpans := make([]*tracepb.Span, 0, len(sdl))
+	for _, sd := range sdl {
+		if sd != nil {
+			protoSpans = append(protoSpans, ocSpanToProtoSpan(sd))
+		}
+	}
+	return protoSpans
+}
+
+func (ae *Exporter) uploadTraces(sdl []*trace.SpanData) {
+	select {
+	case <-ae.stopCh:
+		return
+
+	default:
+		if !ae.connected() {
+			return
+		}
+
+		protoSpans := ocSpanDataToPbSpans(sdl)
+		if len(protoSpans) == 0 {
+			return
+		}
+		ae.senderMu.Lock()
+		err := ae.traceExporter.Send(&agenttracepb.ExportTraceServiceRequest{
+			Spans: protoSpans,
+		})
+		ae.senderMu.Unlock()
+		if err != nil {
+			ae.setStateDisconnected()
+		}
+	}
+}
+
+func ocViewDataToPbMetrics(vdl []*view.Data) []*metricspb.Metric {
+	if len(vdl) == 0 {
+		return nil
+	}
+	metrics := make([]*metricspb.Metric, 0, len(vdl))
+	for _, vd := range vdl {
+		if vd != nil {
+			vmetric, err := viewDataToMetric(vd)
+			// TODO: (@odeke-em) somehow report this error, if it is non-nil.
+			if err == nil && vmetric != nil {
+				metrics = append(metrics, vmetric)
+			}
+		}
+	}
+	return metrics
+}
+
+func (ae *Exporter) uploadViewData(vdl []*view.Data) {
+	select {
+	case <-ae.stopCh:
+		return
+
+	default:
+		if !ae.connected() {
+			return
+		}
+
+		protoMetrics := ocViewDataToPbMetrics(vdl)
+		if len(protoMetrics) == 0 {
+			return
+		}
+		err := ae.metricsExporter.Send(&agentmetricspb.ExportMetricsServiceRequest{
+			Metrics: protoMetrics,
+			// TODO:(@odeke-em)
+			// a) Figure out how to derive a Node from the environment
+			// b) Figure out how to derive a Resource from the environment
+			// or better letting users of the exporter configure it.
+		})
+		if err != nil {
+			ae.setStateDisconnected()
+		}
+	}
+}
+
+func (ae *Exporter) Flush() {
+	ae.traceBundler.Flush()
+	ae.viewDataBundler.Flush()
+}
+
+func resourceProtoFromEnv() *resourcepb.Resource {
+	rs, _ := resource.FromEnv(context.Background())
+	if rs == nil {
+		return nil
+	}
+
+	rprs := &resourcepb.Resource{
+		Type: rs.Type,
+	}
+	if rs.Labels != nil {
+		rprs.Labels = make(map[string]string)
+		for k, v := range rs.Labels {
+			rprs.Labels[k] = v
+		}
+	}
+	return rprs
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/options.go

@@ -0,0 +1,93 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+import "time"
+
+const (
+	DefaultAgentPort uint16 = 55678
+	DefaultAgentHost string = "localhost"
+)
+
+type ExporterOption interface {
+	withExporter(e *Exporter)
+}
+
+type insecureGrpcConnection int
+
+var _ ExporterOption = (*insecureGrpcConnection)(nil)
+
+func (igc *insecureGrpcConnection) withExporter(e *Exporter) {
+	e.canDialInsecure = true
+}
+
+// WithInsecure disables client transport security for the exporter's gRPC connection
+// just like grpc.WithInsecure() https://godoc.org/google.golang.org/grpc#WithInsecure
+// does. Note, by default, client security is required unless WithInsecure is used.
+func WithInsecure() ExporterOption { return new(insecureGrpcConnection) }
+
+type addressSetter string
+
+func (as addressSetter) withExporter(e *Exporter) {
+	e.agentAddress = string(as)
+}
+
+var _ ExporterOption = (*addressSetter)(nil)
+
+// WithAddress allows one to set the address that the exporter will
+// connect to the agent on. If unset, it will instead try to use
+// connect to DefaultAgentHost:DefaultAgentPort
+func WithAddress(addr string) ExporterOption {
+	return addressSetter(addr)
+}
+
+type serviceNameSetter string
+
+func (sns serviceNameSetter) withExporter(e *Exporter) {
+	e.serviceName = string(sns)
+}
+
+var _ ExporterOption = (*serviceNameSetter)(nil)
+
+// WithServiceName allows one to set/override the service name
+// that the exporter will report to the agent.
+func WithServiceName(serviceName string) ExporterOption {
+	return serviceNameSetter(serviceName)
+}
+
+type reconnectionPeriod time.Duration
+
+func (rp reconnectionPeriod) withExporter(e *Exporter) {
+	e.reconnectionPeriod = time.Duration(rp)
+}
+
+func WithReconnectionPeriod(rp time.Duration) ExporterOption {
+	return reconnectionPeriod(rp)
+}
+
+type compressorSetter string
+
+func (c compressorSetter) withExporter(e *Exporter) {
+	e.compressor = string(c)
+}
+
+// UseCompressor will set the compressor for the gRPC client to use when sending requests.
+// It is the responsibility of the caller to ensure that the compressor set has been registered
+// with google.golang.org/grpc/encoding. This can be done by encoding.RegisterCompressor. Some
+// compressors auto-register on import, such as gzip, which can be registered by calling
+// `import _ "google.golang.org/grpc/encoding/gzip"`
+func UseCompressor(compressorName string) ExporterOption {
+	return compressorSetter(compressorName)
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/transform_spans.go

@@ -0,0 +1,248 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+import (
+	"math"
+	"time"
+
+	"go.opencensus.io/trace"
+	"go.opencensus.io/trace/tracestate"
+
+	tracepb "github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1"
+	"github.com/golang/protobuf/ptypes/timestamp"
+)
+
+const (
+	maxAnnotationEventsPerSpan = 32
+	maxMessageEventsPerSpan    = 128
+)
+
+func ocSpanToProtoSpan(sd *trace.SpanData) *tracepb.Span {
+	if sd == nil {
+		return nil
+	}
+	var namePtr *tracepb.TruncatableString
+	if sd.Name != "" {
+		namePtr = &tracepb.TruncatableString{Value: sd.Name}
+	}
+	return &tracepb.Span{
+		TraceId:      sd.TraceID[:],
+		SpanId:       sd.SpanID[:],
+		ParentSpanId: sd.ParentSpanID[:],
+		Status:       ocStatusToProtoStatus(sd.Status),
+		StartTime:    timeToTimestamp(sd.StartTime),
+		EndTime:      timeToTimestamp(sd.EndTime),
+		Links:        ocLinksToProtoLinks(sd.Links),
+		Kind:         ocSpanKindToProtoSpanKind(sd.SpanKind),
+		Name:         namePtr,
+		Attributes:   ocAttributesToProtoAttributes(sd.Attributes),
+		TimeEvents:   ocTimeEventsToProtoTimeEvents(sd.Annotations, sd.MessageEvents),
+		Tracestate:   ocTracestateToProtoTracestate(sd.Tracestate),
+	}
+}
+
+var blankStatus trace.Status
+
+func ocStatusToProtoStatus(status trace.Status) *tracepb.Status {
+	if status == blankStatus {
+		return nil
+	}
+	return &tracepb.Status{
+		Code:    status.Code,
+		Message: status.Message,
+	}
+}
+
+func ocLinksToProtoLinks(links []trace.Link) *tracepb.Span_Links {
+	if len(links) == 0 {
+		return nil
+	}
+
+	sl := make([]*tracepb.Span_Link, 0, len(links))
+	for _, ocLink := range links {
+		// This redefinition is necessary to prevent ocLink.*ID[:] copies
+		// being reused -- in short we need a new ocLink per iteration.
+		ocLink := ocLink
+
+		sl = append(sl, &tracepb.Span_Link{
+			TraceId: ocLink.TraceID[:],
+			SpanId:  ocLink.SpanID[:],
+			Type:    ocLinkTypeToProtoLinkType(ocLink.Type),
+		})
+	}
+
+	return &tracepb.Span_Links{
+		Link: sl,
+	}
+}
+
+func ocLinkTypeToProtoLinkType(oct trace.LinkType) tracepb.Span_Link_Type {
+	switch oct {
+	case trace.LinkTypeChild:
+		return tracepb.Span_Link_CHILD_LINKED_SPAN
+	case trace.LinkTypeParent:
+		return tracepb.Span_Link_PARENT_LINKED_SPAN
+	default:
+		return tracepb.Span_Link_TYPE_UNSPECIFIED
+	}
+}
+
+func ocAttributesToProtoAttributes(attrs map[string]interface{}) *tracepb.Span_Attributes {
+	if len(attrs) == 0 {
+		return nil
+	}
+	outMap := make(map[string]*tracepb.AttributeValue)
+	for k, v := range attrs {
+		switch v := v.(type) {
+		case bool:
+			outMap[k] = &tracepb.AttributeValue{Value: &tracepb.AttributeValue_BoolValue{BoolValue: v}}
+
+		case int:
+			outMap[k] = &tracepb.AttributeValue{Value: &tracepb.AttributeValue_IntValue{IntValue: int64(v)}}
+
+		case int64:
+			outMap[k] = &tracepb.AttributeValue{Value: &tracepb.AttributeValue_IntValue{IntValue: v}}
+
+		case string:
+			outMap[k] = &tracepb.AttributeValue{
+				Value: &tracepb.AttributeValue_StringValue{
+					StringValue: &tracepb.TruncatableString{Value: v},
+				},
+			}
+		}
+	}
+	return &tracepb.Span_Attributes{
+		AttributeMap: outMap,
+	}
+}
+
+// This code is mostly copied from
+// https://github.com/census-ecosystem/opencensus-go-exporter-stackdriver/blob/master/trace_proto.go#L46
+func ocTimeEventsToProtoTimeEvents(as []trace.Annotation, es []trace.MessageEvent) *tracepb.Span_TimeEvents {
+	if len(as) == 0 && len(es) == 0 {
+		return nil
+	}
+
+	timeEvents := &tracepb.Span_TimeEvents{}
+	var annotations, droppedAnnotationsCount int
+	var messageEvents, droppedMessageEventsCount int
+
+	// Transform annotations
+	for i, a := range as {
+		if annotations >= maxAnnotationEventsPerSpan {
+			droppedAnnotationsCount = len(as) - i
+			break
+		}
+		annotations++
+		timeEvents.TimeEvent = append(timeEvents.TimeEvent,
+			&tracepb.Span_TimeEvent{
+				Time:  timeToTimestamp(a.Time),
+				Value: transformAnnotationToTimeEvent(&a),
+			},
+		)
+	}
+
+	// Transform message events
+	for i, e := range es {
+		if messageEvents >= maxMessageEventsPerSpan {
+			droppedMessageEventsCount = len(es) - i
+			break
+		}
+		messageEvents++
+		timeEvents.TimeEvent = append(timeEvents.TimeEvent,
+			&tracepb.Span_TimeEvent{
+				Time:  timeToTimestamp(e.Time),
+				Value: transformMessageEventToTimeEvent(&e),
+			},
+		)
+	}
+
+	// Process dropped counter
+	timeEvents.DroppedAnnotationsCount = clip32(droppedAnnotationsCount)
+	timeEvents.DroppedMessageEventsCount = clip32(droppedMessageEventsCount)
+
+	return timeEvents
+}
+
+func transformAnnotationToTimeEvent(a *trace.Annotation) *tracepb.Span_TimeEvent_Annotation_ {
+	return &tracepb.Span_TimeEvent_Annotation_{
+		Annotation: &tracepb.Span_TimeEvent_Annotation{
+			Description: &tracepb.TruncatableString{Value: a.Message},
+			Attributes:  ocAttributesToProtoAttributes(a.Attributes),
+		},
+	}
+}
+
+func transformMessageEventToTimeEvent(e *trace.MessageEvent) *tracepb.Span_TimeEvent_MessageEvent_ {
+	return &tracepb.Span_TimeEvent_MessageEvent_{
+		MessageEvent: &tracepb.Span_TimeEvent_MessageEvent{
+			Type:             tracepb.Span_TimeEvent_MessageEvent_Type(e.EventType),
+			Id:               uint64(e.MessageID),
+			UncompressedSize: uint64(e.UncompressedByteSize),
+			CompressedSize:   uint64(e.CompressedByteSize),
+		},
+	}
+}
+
+// clip32 clips an int to the range of an int32.
+func clip32(x int) int32 {
+	if x < math.MinInt32 {
+		return math.MinInt32
+	}
+	if x > math.MaxInt32 {
+		return math.MaxInt32
+	}
+	return int32(x)
+}
+
+func timeToTimestamp(t time.Time) *timestamp.Timestamp {
+	nanoTime := t.UnixNano()
+	return &timestamp.Timestamp{
+		Seconds: nanoTime / 1e9,
+		Nanos:   int32(nanoTime % 1e9),
+	}
+}
+
+func ocSpanKindToProtoSpanKind(kind int) tracepb.Span_SpanKind {
+	switch kind {
+	case trace.SpanKindClient:
+		return tracepb.Span_CLIENT
+	case trace.SpanKindServer:
+		return tracepb.Span_SERVER
+	default:
+		return tracepb.Span_SPAN_KIND_UNSPECIFIED
+	}
+}
+
+func ocTracestateToProtoTracestate(ts *tracestate.Tracestate) *tracepb.Span_Tracestate {
+	if ts == nil {
+		return nil
+	}
+	return &tracepb.Span_Tracestate{
+		Entries: ocTracestateEntriesToProtoTracestateEntries(ts.Entries()),
+	}
+}
+
+func ocTracestateEntriesToProtoTracestateEntries(entries []tracestate.Entry) []*tracepb.Span_Tracestate_Entry {
+	protoEntries := make([]*tracepb.Span_Tracestate_Entry, 0, len(entries))
+	for _, entry := range entries {
+		protoEntries = append(protoEntries, &tracepb.Span_Tracestate_Entry{
+			Key:   entry.Key,
+			Value: entry.Value,
+		})
+	}
+	return protoEntries
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/transform_stats_to_metrics.go

@@ -0,0 +1,294 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+import (
+	"errors"
+	"time"
+
+	"go.opencensus.io/exemplar"
+	"go.opencensus.io/stats"
+	"go.opencensus.io/stats/view"
+	"go.opencensus.io/tag"
+
+	"github.com/golang/protobuf/ptypes/timestamp"
+
+	metricspb "github.com/census-instrumentation/opencensus-proto/gen-go/metrics/v1"
+)
+
+var (
+	errNilMeasure  = errors.New("expecting a non-nil stats.Measure")
+	errNilView     = errors.New("expecting a non-nil view.View")
+	errNilViewData = errors.New("expecting a non-nil view.Data")
+)
+
+func viewDataToMetric(vd *view.Data) (*metricspb.Metric, error) {
+	if vd == nil {
+		return nil, errNilViewData
+	}
+
+	descriptor, err := viewToMetricDescriptor(vd.View)
+	if err != nil {
+		return nil, err
+	}
+
+	timeseries, err := viewDataToTimeseries(vd)
+	if err != nil {
+		return nil, err
+	}
+
+	metric := &metricspb.Metric{
+		Descriptor_: descriptor,
+		Timeseries:  timeseries,
+	}
+	return metric, nil
+}
+
+func viewToMetricDescriptor(v *view.View) (*metricspb.Metric_MetricDescriptor, error) {
+	if v == nil {
+		return nil, errNilView
+	}
+	if v.Measure == nil {
+		return nil, errNilMeasure
+	}
+
+	desc := &metricspb.Metric_MetricDescriptor{
+		MetricDescriptor: &metricspb.MetricDescriptor{
+			Name:        stringOrCall(v.Name, v.Measure.Name),
+			Description: stringOrCall(v.Description, v.Measure.Description),
+			Unit:        v.Measure.Unit(),
+			Type:        aggregationToMetricDescriptorType(v),
+			LabelKeys:   tagKeysToLabelKeys(v.TagKeys),
+		},
+	}
+	return desc, nil
+}
+
+func stringOrCall(first string, call func() string) string {
+	if first != "" {
+		return first
+	}
+	return call()
+}
+
+type measureType uint
+
+const (
+	measureUnknown measureType = iota
+	measureInt64
+	measureFloat64
+)
+
+func measureTypeFromMeasure(m stats.Measure) measureType {
+	switch m.(type) {
+	default:
+		return measureUnknown
+	case *stats.Float64Measure:
+		return measureFloat64
+	case *stats.Int64Measure:
+		return measureInt64
+	}
+}
+
+func aggregationToMetricDescriptorType(v *view.View) metricspb.MetricDescriptor_Type {
+	if v == nil || v.Aggregation == nil {
+		return metricspb.MetricDescriptor_UNSPECIFIED
+	}
+	if v.Measure == nil {
+		return metricspb.MetricDescriptor_UNSPECIFIED
+	}
+
+	switch v.Aggregation.Type {
+	case view.AggTypeCount:
+		// Cumulative on int64
+		return metricspb.MetricDescriptor_CUMULATIVE_INT64
+
+	case view.AggTypeDistribution:
+		// Cumulative types
+		return metricspb.MetricDescriptor_CUMULATIVE_DISTRIBUTION
+
+	case view.AggTypeLastValue:
+		// Gauge types
+		switch measureTypeFromMeasure(v.Measure) {
+		case measureFloat64:
+			return metricspb.MetricDescriptor_GAUGE_DOUBLE
+		case measureInt64:
+			return metricspb.MetricDescriptor_GAUGE_INT64
+		}
+
+	case view.AggTypeSum:
+		// Cumulative types
+		switch measureTypeFromMeasure(v.Measure) {
+		case measureFloat64:
+			return metricspb.MetricDescriptor_CUMULATIVE_DOUBLE
+		case measureInt64:
+			return metricspb.MetricDescriptor_CUMULATIVE_INT64
+		}
+	}
+
+	// For all other cases, return unspecified.
+	return metricspb.MetricDescriptor_UNSPECIFIED
+}
+
+func tagKeysToLabelKeys(tagKeys []tag.Key) []*metricspb.LabelKey {
+	labelKeys := make([]*metricspb.LabelKey, 0, len(tagKeys))
+	for _, tagKey := range tagKeys {
+		labelKeys = append(labelKeys, &metricspb.LabelKey{
+			Key: tagKey.Name(),
+		})
+	}
+	return labelKeys
+}
+
+func viewDataToTimeseries(vd *view.Data) ([]*metricspb.TimeSeries, error) {
+	if vd == nil || len(vd.Rows) == 0 {
+		return nil, nil
+	}
+
+	// Given that view.Data only contains Start, End
+	// the timestamps for all the row data will be the exact same
+	// per aggregation. However, the values will differ.
+	// Each row has its own tags.
+	startTimestamp := timeToProtoTimestamp(vd.Start)
+	endTimestamp := timeToProtoTimestamp(vd.End)
+
+	mType := measureTypeFromMeasure(vd.View.Measure)
+	timeseries := make([]*metricspb.TimeSeries, 0, len(vd.Rows))
+	// It is imperative that the ordering of "LabelValues" matches those
+	// of the Label keys in the metric descriptor.
+	for _, row := range vd.Rows {
+		labelValues := labelValuesFromTags(row.Tags)
+		point := rowToPoint(vd.View, row, endTimestamp, mType)
+		timeseries = append(timeseries, &metricspb.TimeSeries{
+			StartTimestamp: startTimestamp,
+			LabelValues:    labelValues,
+			Points:         []*metricspb.Point{point},
+		})
+	}
+
+	if len(timeseries) == 0 {
+		return nil, nil
+	}
+
+	return timeseries, nil
+}
+
+func timeToProtoTimestamp(t time.Time) *timestamp.Timestamp {
+	unixNano := t.UnixNano()
+	return &timestamp.Timestamp{
+		Seconds: int64(unixNano / 1e9),
+		Nanos:   int32(unixNano % 1e9),
+	}
+}
+
+func rowToPoint(v *view.View, row *view.Row, endTimestamp *timestamp.Timestamp, mType measureType) *metricspb.Point {
+	pt := &metricspb.Point{
+		Timestamp: endTimestamp,
+	}
+
+	switch data := row.Data.(type) {
+	case *view.CountData:
+		pt.Value = &metricspb.Point_Int64Value{Int64Value: data.Value}
+
+	case *view.DistributionData:
+		pt.Value = &metricspb.Point_DistributionValue{
+			DistributionValue: &metricspb.DistributionValue{
+				Count:   data.Count,
+				Sum:     float64(data.Count) * data.Mean, // because Mean := Sum/Count
+				Buckets: bucketsToProtoBuckets(data.CountPerBucket, data.ExemplarsPerBucket),
+				BucketOptions: &metricspb.DistributionValue_BucketOptions{
+					Type: &metricspb.DistributionValue_BucketOptions_Explicit_{
+						Explicit: &metricspb.DistributionValue_BucketOptions_Explicit{
+							Bounds: v.Aggregation.Buckets,
+						},
+					},
+				},
+				SumOfSquaredDeviation: data.SumOfSquaredDev,
+			}}
+
+	case *view.LastValueData:
+		setPointValue(pt, data.Value, mType)
+
+	case *view.SumData:
+		setPointValue(pt, data.Value, mType)
+	}
+
+	return pt
+}
+
+// Not returning anything from this function because metricspb.Point.is_Value is an unexported
+// interface hence we just have to set its value by pointer.
+func setPointValue(pt *metricspb.Point, value float64, mType measureType) {
+	if mType == measureInt64 {
+		pt.Value = &metricspb.Point_Int64Value{Int64Value: int64(value)}
+	} else {
+		pt.Value = &metricspb.Point_DoubleValue{DoubleValue: value}
+	}
+}
+
+// countPerBucket and exemplars are of the same length in well formed data,
+// otherwise ensure that even if exemplars are non-existent that we always
+// insert counts and create distribution value buckets.
+func bucketsToProtoBuckets(countPerBucket []int64, exemplars []*exemplar.Exemplar) []*metricspb.DistributionValue_Bucket {
+	distBuckets := make([]*metricspb.DistributionValue_Bucket, len(countPerBucket))
+	for i := 0; i < len(countPerBucket); i++ {
+		count := countPerBucket[i]
+
+		var exmplr *exemplar.Exemplar
+		if i < len(exemplars) {
+			exmplr = exemplars[i]
+		}
+
+		var protoExemplar *metricspb.DistributionValue_Exemplar
+		if exmplr != nil {
+			protoExemplar = &metricspb.DistributionValue_Exemplar{
+				Value:       exmplr.Value,
+				Timestamp:   timeToTimestamp(exmplr.Timestamp),
+				Attachments: exmplr.Attachments,
+			}
+		}
+
+		distBuckets[i] = &metricspb.DistributionValue_Bucket{
+			Count:    count,
+			Exemplar: protoExemplar,
+		}
+	}
+
+	return distBuckets
+}
+
+func labelValuesFromTags(tags []tag.Tag) []*metricspb.LabelValue {
+	if len(tags) == 0 {
+		return nil
+	}
+
+	labelValues := make([]*metricspb.LabelValue, 0, len(tags))
+	for _, tag_ := range tags {
+		labelValues = append(labelValues, &metricspb.LabelValue{
+			Value: tag_.Value,
+
+			// It is imperative that we set the "HasValue" attribute,
+			// in order to distinguish missing a label from the empty string.
+			// https://godoc.org/github.com/census-instrumentation/opencensus-proto/gen-go/metrics/v1#LabelValue.HasValue
+			//
+			// OpenCensus-Go uses non-pointers for tags as seen by this function's arguments,
+			// so the best case that we can use to distinguish missing labels/tags from the
+			// empty string is by checking if the Tag.Key.Name() != "" to indicate that we have
+			// a value.
+			HasValue: tag_.Key.Name() != "",
+		})
+	}
+	return labelValues
+}

vendor/contrib.go.opencensus.io/exporter/ocagent/version.go

@@ -0,0 +1,17 @@
+// Copyright 2018, OpenCensus Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package ocagent
+
+const Version = "0.0.1"

vendor/github.com/Azure/azure-sdk-for-go/storage/queue.go

@@ -169,7 +169,7 @@ func (q *Queue) GetMetadata(options *QueueServiceOptions) error {
 		params = addTimeout(params, options.Timeout)
 		headers = mergeHeaders(headers, headersFromStruct(*options))
 	}
-	uri := q.qsc.client.getEndpoint(queueServiceName, q.buildPath(), url.Values{"comp": {"metadata"}})
+	uri := q.qsc.client.getEndpoint(queueServiceName, q.buildPath(), params)
 
 	resp, err := q.qsc.client.exec(http.MethodGet, uri, headers, nil, q.qsc.auth)
 	if err != nil {

vendor/github.com/Azure/azure-sdk-for-go/version/version.go

@@ -18,4 +18,4 @@ package version
 // Changes may cause incorrect behavior and will be lost if the code is regenerated.
 
 // Number contains the semantic version of this SDK.
-const Number = "v20.1.0"
+const Number = "v25.1.0"

vendor/github.com/Azure/go-autorest/autorest/adal/config.go

@@ -19,10 +19,6 @@ import (
 	"net/url"
 )
 
-const (
-	activeDirectoryAPIVersion = "1.0"
-)
-
 // OAuthConfig represents the endpoints needed
 // in OAuth operations
 type OAuthConfig struct {
@@ -46,11 +42,25 @@ func validateStringParam(param, name string) error {
 
 // NewOAuthConfig returns an OAuthConfig with tenant specific urls
 func NewOAuthConfig(activeDirectoryEndpoint, tenantID string) (*OAuthConfig, error) {
+	apiVer := "1.0"
+	return NewOAuthConfigWithAPIVersion(activeDirectoryEndpoint, tenantID, &apiVer)
+}
+
+// NewOAuthConfigWithAPIVersion returns an OAuthConfig with tenant specific urls.
+// If apiVersion is not nil the "api-version" query parameter will be appended to the endpoint URLs with the specified value.
+func NewOAuthConfigWithAPIVersion(activeDirectoryEndpoint, tenantID string, apiVersion *string) (*OAuthConfig, error) {
 	if err := validateStringParam(activeDirectoryEndpoint, "activeDirectoryEndpoint"); err != nil {
 		return nil, err
 	}
+	api := ""
 	// it's legal for tenantID to be empty so don't validate it
-	const activeDirectoryEndpointTemplate = "%s/oauth2/%s?api-version=%s"
+	if apiVersion != nil {
+		if err := validateStringParam(*apiVersion, "apiVersion"); err != nil {
+			return nil, err
+		}
+		api = fmt.Sprintf("?api-version=%s", *apiVersion)
+	}
+	const activeDirectoryEndpointTemplate = "%s/oauth2/%s%s"
 	u, err := url.Parse(activeDirectoryEndpoint)
 	if err != nil {
 		return nil, err
@@ -59,15 +69,15 @@ func NewOAuthConfig(activeDirectoryEndpoint, tenantID string) (*OAuthConfig, err
 	if err != nil {
 		return nil, err
 	}
-	authorizeURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "authorize", activeDirectoryAPIVersion))
+	authorizeURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "authorize", api))
 	if err != nil {
 		return nil, err
 	}
-	tokenURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "token", activeDirectoryAPIVersion))
+	tokenURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "token", api))
 	if err != nil {
 		return nil, err
 	}
-	deviceCodeURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "devicecode", activeDirectoryAPIVersion))
+	deviceCodeURL, err := u.Parse(fmt.Sprintf(activeDirectoryEndpointTemplate, tenantID, "devicecode", api))
 	if err != nil {
 		return nil, err
 	}

vendor/github.com/Azure/go-autorest/autorest/adal/sender.go

@@ -38,7 +38,7 @@ func (sf SenderFunc) Do(r *http.Request) (*http.Response, error) {
 	return sf(r)
 }
 
-// SendDecorator takes and possibily decorates, by wrapping, a Sender. Decorators may affect the
+// SendDecorator takes and possibly decorates, by wrapping, a Sender. Decorators may affect the
 // http.Request and pass it along or, first, pass the http.Request along then react to the
 // http.Response result.
 type SendDecorator func(Sender) Sender

vendor/github.com/Azure/go-autorest/autorest/adal/token.go

@@ -29,13 +29,12 @@ import (
 	"net"
 	"net/http"
 	"net/url"
-	"strconv"
 	"strings"
 	"sync"
 	"time"
 
 	"github.com/Azure/go-autorest/autorest/date"
-	"github.com/Azure/go-autorest/version"
+	"github.com/Azure/go-autorest/tracing"
 	"github.com/dgrijalva/jwt-go"
 )
 
@@ -97,18 +96,27 @@ type RefresherWithContext interface {
 type TokenRefreshCallback func(Token) error
 
 // Token encapsulates the access token used to authorize Azure requests.
+// https://docs.microsoft.com/en-us/azure/active-directory/develop/v1-oauth2-client-creds-grant-flow#service-to-service-access-token-response
 type Token struct {
 	AccessToken  string `json:"access_token"`
 	RefreshToken string `json:"refresh_token"`
 
-	ExpiresIn string `json:"expires_in"`
+	ExpiresIn json.Number `json:"expires_in"`
-	ExpiresOn string `json:"expires_on"`
+	ExpiresOn json.Number `json:"expires_on"`
-	NotBefore string `json:"not_before"`
+	NotBefore json.Number `json:"not_before"`
 
 	Resource string `json:"resource"`
 	Type     string `json:"token_type"`
 }
 
+func newToken() Token {
+	return Token{
+		ExpiresIn: "0",
+		ExpiresOn: "0",
+		NotBefore: "0",
+	}
+}
+
 // IsZero returns true if the token object is zero-initialized.
 func (t Token) IsZero() bool {
 	return t == Token{}
@@ -116,12 +124,12 @@ func (t Token) IsZero() bool {
 
 // Expires returns the time.Time when the Token expires.
 func (t Token) Expires() time.Time {
-	s, err := strconv.Atoi(t.ExpiresOn)
+	s, err := t.ExpiresOn.Float64()
 	if err != nil {
 		s = -3600
 	}
 
-	expiration := date.NewUnixTimeFromSeconds(float64(s))
+	expiration := date.NewUnixTimeFromSeconds(s)
 
 	return time.Time(expiration).UTC()
 }
@@ -218,6 +226,8 @@ func (secret *ServicePrincipalCertificateSecret) SignJwt(spt *ServicePrincipalTo
 
 	token := jwt.New(jwt.SigningMethodRS256)
 	token.Header["x5t"] = thumbprint
+	x5c := []string{base64.StdEncoding.EncodeToString(secret.Certificate.Raw)}
+	token.Header["x5c"] = x5c
 	token.Claims = jwt.MapClaims{
 		"aud": spt.inner.OauthConfig.TokenEndpoint.String(),
 		"iss": spt.inner.ClientID,
@@ -375,8 +385,13 @@ func (spt *ServicePrincipalToken) UnmarshalJSON(data []byte) error {
 	if err != nil {
 		return err
 	}
-	spt.refreshLock = &sync.RWMutex{}
+	// Don't override the refreshLock or the sender if those have been already set.
-	spt.sender = &http.Client{}
+	if spt.refreshLock == nil {
+		spt.refreshLock = &sync.RWMutex{}
+	}
+	if spt.sender == nil {
+		spt.sender = &http.Client{Transport: tracing.Transport}
+	}
 	return nil
 }
 
@@ -414,6 +429,7 @@ func NewServicePrincipalTokenWithSecret(oauthConfig OAuthConfig, id string, reso
 	}
 	spt := &ServicePrincipalToken{
 		inner: servicePrincipalToken{
+			Token:         newToken(),
 			OauthConfig:   oauthConfig,
 			Secret:        secret,
 			ClientID:      id,
@@ -422,7 +438,7 @@ func NewServicePrincipalTokenWithSecret(oauthConfig OAuthConfig, id string, reso
 			RefreshWithin: defaultRefresh,
 		},
 		refreshLock:      &sync.RWMutex{},
-		sender:           &http.Client{},
+		sender:           &http.Client{Transport: tracing.Transport},
 		refreshCallbacks: callbacks,
 	}
 	return spt, nil
@@ -653,6 +669,7 @@ func newServicePrincipalTokenFromMSI(msiEndpoint, resource string, userAssignedI
 
 	spt := &ServicePrincipalToken{
 		inner: servicePrincipalToken{
+			Token: newToken(),
 			OauthConfig: OAuthConfig{
 				TokenEndpoint: *msiEndpointURL,
 			},
@@ -662,7 +679,7 @@ func newServicePrincipalTokenFromMSI(msiEndpoint, resource string, userAssignedI
 			RefreshWithin: defaultRefresh,
 		},
 		refreshLock:           &sync.RWMutex{},
-		sender:                &http.Client{},
+		sender:                &http.Client{Transport: tracing.Transport},
 		refreshCallbacks:      callbacks,
 		MaxMSIRefreshAttempts: defaultMaxMSIRefreshAttempts,
 	}
@@ -779,7 +796,7 @@ func (spt *ServicePrincipalToken) refreshInternal(ctx context.Context, resource
 	if err != nil {
 		return fmt.Errorf("adal: Failed to build the refresh request. Error = '%v'", err)
 	}
-	req.Header.Add("User-Agent", version.UserAgent())
+	req.Header.Add("User-Agent", UserAgent())
 	req = req.WithContext(ctx)
 	if !isIMDS(spt.inner.OauthConfig.TokenEndpoint) {
 		v := url.Values{}

vendor/github.com/Azure/go-autorest/autorest/adal/version.go

@@ -1,4 +1,9 @@
-package version
+package adal
+
+import (
+	"fmt"
+	"runtime"
+)
 
 // Copyright 2017 Microsoft Corporation
 //
@@ -14,24 +19,27 @@ package version
 //  See the License for the specific language governing permissions and
 //  limitations under the License.
 
-import (
+const number = "v1.0.0"
-	"fmt"
-	"runtime"
-)
-
-// Number contains the semantic version of this SDK.
-const Number = "v10.15.3"
 
 var (
-	userAgent = fmt.Sprintf("Go/%s (%s-%s) go-autorest/%s",
+	ua = fmt.Sprintf("Go/%s (%s-%s) go-autorest/adal/%s",
 		runtime.Version(),
 		runtime.GOARCH,
 		runtime.GOOS,
-		Number,
+		number,
 	)
 )
 
-// UserAgent returns a string containing the Go version, system archityecture and OS, and the go-autorest version.
+// UserAgent returns a string containing the Go version, system architecture and OS, and the adal version.
 func UserAgent() string {
-	return userAgent
+	return ua
+}
+
+// AddToUserAgent adds an extension to the current user agent
+func AddToUserAgent(extension string) error {
+	if extension != "" {
+		ua = fmt.Sprintf("%s %s", ua, extension)
+		return nil
+	}
+	return fmt.Errorf("Extension was empty, User Agent remained as '%s'", ua)
 }

vendor/github.com/Azure/go-autorest/autorest/authorization.go

@@ -21,6 +21,7 @@ import (
 	"strings"
 
 	"github.com/Azure/go-autorest/autorest/adal"
+	"github.com/Azure/go-autorest/tracing"
 )
 
 const (
@@ -68,7 +69,7 @@ func NewAPIKeyAuthorizer(headers map[string]interface{}, queryParameters map[str
 	return &APIKeyAuthorizer{headers: headers, queryParameters: queryParameters}
 }
 
-// WithAuthorization returns a PrepareDecorator that adds an HTTP headers and Query Paramaters
+// WithAuthorization returns a PrepareDecorator that adds an HTTP headers and Query Parameters.
 func (aka *APIKeyAuthorizer) WithAuthorization() PrepareDecorator {
 	return func(p Preparer) Preparer {
 		return DecoratePreparer(p, WithHeaders(aka.headers), WithQueryParameters(aka.queryParameters))
@@ -147,7 +148,7 @@ type BearerAuthorizerCallback struct {
 // is invoked when the HTTP request is submitted.
 func NewBearerAuthorizerCallback(sender Sender, callback BearerAuthorizerCallbackFunc) *BearerAuthorizerCallback {
 	if sender == nil {
-		sender = &http.Client{}
+		sender = &http.Client{Transport: tracing.Transport}
 	}
 	return &BearerAuthorizerCallback{sender: sender, callback: callback}
 }

vendor/github.com/Azure/go-autorest/autorest/azure/async.go

@@ -26,6 +26,7 @@ import (
 	"time"
 
 	"github.com/Azure/go-autorest/autorest"
+	"github.com/Azure/go-autorest/tracing"
 )
 
 const (
@@ -58,10 +59,7 @@ func NewFuture(req *http.Request) Future {
 // with the initial response from an asynchronous operation.
 func NewFutureFromResponse(resp *http.Response) (Future, error) {
 	pt, err := createPollingTracker(resp)
-	if err != nil {
+	return Future{pt: pt}, err
-		return Future{}, err
-	}
-	return Future{pt: pt}, nil
 }
 
 // Response returns the last HTTP response.
@@ -89,7 +87,23 @@ func (f Future) PollingMethod() PollingMethodType {
 }
 
 // Done queries the service to see if the operation has completed.
+// Deprecated: Use DoneWithContext()
 func (f *Future) Done(sender autorest.Sender) (bool, error) {
+	return f.DoneWithContext(context.Background(), sender)
+}
+
+// DoneWithContext queries the service to see if the operation has completed.
+func (f *Future) DoneWithContext(ctx context.Context, sender autorest.Sender) (done bool, err error) {
+	ctx = tracing.StartSpan(ctx, "github.com/Azure/go-autorest/autorest/azure/async.DoneWithContext")
+	defer func() {
+		sc := -1
+		resp := f.Response()
+		if resp != nil {
+			sc = resp.StatusCode
+		}
+		tracing.EndSpan(ctx, sc, err)
+	}()
+
 	// support for legacy Future implementation
 	if f.req != nil {
 		resp, err := sender.Do(f.req)
@@ -110,7 +124,7 @@ func (f *Future) Done(sender autorest.Sender) (bool, error) {
 	if f.pt.hasTerminated() {
 		return true, f.pt.pollingError()
 	}
-	if err := f.pt.pollForStatus(sender); err != nil {
+	if err := f.pt.pollForStatus(ctx, sender); err != nil {
 		return false, err
 	}
 	if err := f.pt.checkForErrors(); err != nil {
@@ -167,11 +181,31 @@ func (f Future) WaitForCompletion(ctx context.Context, client autorest.Client) e
 // running operation has completed, the provided context is cancelled, or the client's
 // polling duration has been exceeded.  It will retry failed polling attempts based on
 // the retry value defined in the client up to the maximum retry attempts.
-func (f *Future) WaitForCompletionRef(ctx context.Context, client autorest.Client) error {
+// If no deadline is specified in the context then the client.PollingDuration will be
-	ctx, cancel := context.WithTimeout(ctx, client.PollingDuration)
+// used to determine if a default deadline should be used.
-	defer cancel()
+// If PollingDuration is greater than zero the value will be used as the context's timeout.
-	done, err := f.Done(client)
+// If PollingDuration is zero then no default deadline will be used.
-	for attempts := 0; !done; done, err = f.Done(client) {
+func (f *Future) WaitForCompletionRef(ctx context.Context, client autorest.Client) (err error) {
+	ctx = tracing.StartSpan(ctx, "github.com/Azure/go-autorest/autorest/azure/async.WaitForCompletionRef")
+	defer func() {
+		sc := -1
+		resp := f.Response()
+		if resp != nil {
+			sc = resp.StatusCode
+		}
+		tracing.EndSpan(ctx, sc, err)
+	}()
+	cancelCtx := ctx
+	// if the provided context already has a deadline don't override it
+	_, hasDeadline := ctx.Deadline()
+	if d := client.PollingDuration; !hasDeadline && d != 0 {
+		var cancel context.CancelFunc
+		cancelCtx, cancel = context.WithTimeout(ctx, d)
+		defer cancel()
+	}
+
+	done, err := f.DoneWithContext(ctx, client)
+	for attempts := 0; !done; done, err = f.DoneWithContext(ctx, client) {
 		if attempts >= client.RetryAttempts {
 			return autorest.NewErrorWithError(err, "Future", "WaitForCompletion", f.pt.latestResponse(), "the number of retries has been exceeded")
 		}
@@ -195,12 +229,12 @@ func (f *Future) WaitForCompletionRef(ctx context.Context, client autorest.Clien
 			attempts++
 		}
 		// wait until the delay elapses or the context is cancelled
-		delayElapsed := autorest.DelayForBackoff(delay, delayAttempt, ctx.Done())
+		delayElapsed := autorest.DelayForBackoff(delay, delayAttempt, cancelCtx.Done())
 		if !delayElapsed {
-			return autorest.NewErrorWithError(ctx.Err(), "Future", "WaitForCompletion", f.pt.latestResponse(), "context has been cancelled")
+			return autorest.NewErrorWithError(cancelCtx.Err(), "Future", "WaitForCompletion", f.pt.latestResponse(), "context has been cancelled")
 		}
 	}
-	return err
+	return
 }
 
 // MarshalJSON implements the json.Marshaler interface.
@@ -285,7 +319,7 @@ type pollingTracker interface {
 	initializeState() error
 
 	// makes an HTTP request to check the status of the LRO
-	pollForStatus(sender autorest.Sender) error
+	pollForStatus(ctx context.Context, sender autorest.Sender) error
 
 	// updates internal tracker state, call this after each call to pollForStatus
 	updatePollingState(provStateApl bool) error
@@ -399,6 +433,10 @@ func (pt *pollingTrackerBase) updateRawBody() error {
 		if err != nil {
 			return autorest.NewErrorWithError(err, "pollingTrackerBase", "updateRawBody", nil, "failed to read response body")
 		}
+		// observed in 204 responses over HTTP/2.0; the content length is -1 but body is empty
+		if len(b) == 0 {
+			return nil
+		}
 		// put the body back so it's available to other callers
 		pt.resp.Body = ioutil.NopCloser(bytes.NewReader(b))
 		if err = json.Unmarshal(b, &pt.rawBody); err != nil {
@@ -408,15 +446,13 @@ func (pt *pollingTrackerBase) updateRawBody() error {
 	return nil
 }
 
-func (pt *pollingTrackerBase) pollForStatus(sender autorest.Sender) error {
+func (pt *pollingTrackerBase) pollForStatus(ctx context.Context, sender autorest.Sender) error {
 	req, err := http.NewRequest(http.MethodGet, pt.URI, nil)
 	if err != nil {
 		return autorest.NewErrorWithError(err, "pollingTrackerBase", "pollForStatus", nil, "failed to create HTTP request")
 	}
-	// attach the context from the original request if available (it will be absent for deserialized futures)
+
-	if pt.resp != nil {
+	req = req.WithContext(ctx)
-		req = req.WithContext(pt.resp.Request.Context())
-	}
 	pt.resp, err = sender.Do(req)
 	if err != nil {
 		return autorest.NewErrorWithError(err, "pollingTrackerBase", "pollForStatus", nil, "failed to send HTTP request")
@@ -428,6 +464,7 @@ func (pt *pollingTrackerBase) pollForStatus(sender autorest.Sender) error {
 	} else {
 		// check response body for error content
 		pt.updateErrorFromResponse()
+		err = pt.pollingError()
 	}
 	return err
 }
@@ -444,7 +481,7 @@ func (pt *pollingTrackerBase) updateErrorFromResponse() {
 		re := respErr{}
 		defer pt.resp.Body.Close()
 		var b []byte
-		if b, err = ioutil.ReadAll(pt.resp.Body); err != nil {
+		if b, err = ioutil.ReadAll(pt.resp.Body); err != nil || len(b) == 0 {
 			goto Default
 		}
 		if err = json.Unmarshal(b, &re); err != nil {
@@ -662,7 +699,7 @@ func (pt *pollingTrackerPatch) updatePollingMethod() error {
 		}
 	}
 	// for 202 prefer the Azure-AsyncOperation header but fall back to Location if necessary
-	// note the absense of the "final GET" mechanism for PATCH
+	// note the absence of the "final GET" mechanism for PATCH
 	if pt.resp.StatusCode == http.StatusAccepted {
 		ao, err := getURLFromAsyncOpHeader(pt.resp)
 		if err != nil {
@@ -793,8 +830,6 @@ func (pt *pollingTrackerPut) updatePollingMethod() error {
 				pt.URI = lh
 				pt.Pm = PollingLocation
 			}
-			// when both headers are returned we use the value in the Location header for the final GET
-			pt.FinalGetURI = lh
 		}
 		// make sure a polling URL was found
 		if pt.URI == "" {

vendor/github.com/Azure/go-autorest/autorest/azure/rp.go

@@ -140,8 +140,8 @@ func register(client autorest.Client, originalReq *http.Request, re RequestError
 	}
 
 	// poll for registered provisioning state
-	now := time.Now()
+	registrationStartTime := time.Now()
-	for err == nil && time.Since(now) < client.PollingDuration {
+	for err == nil && (client.PollingDuration == 0 || (client.PollingDuration != 0 && time.Since(registrationStartTime) < client.PollingDuration)) {
 		// taken from the resources SDK
 		// https://github.com/Azure/azure-sdk-for-go/blob/9f366792afa3e0ddaecdc860e793ba9d75e76c27/arm/resources/resources/providers.go#L45
 		preparer := autorest.CreatePreparer(
@@ -183,7 +183,7 @@ func register(client autorest.Client, originalReq *http.Request, re RequestError
 			return originalReq.Context().Err()
 		}
 	}
-	if !(time.Since(now) < client.PollingDuration) {
+	if client.PollingDuration != 0 && !(time.Since(registrationStartTime) < client.PollingDuration) {
 		return errors.New("polling for resource provider registration has exceeded the polling duration")
 	}
 	return err

vendor/github.com/Azure/go-autorest/autorest/client.go

@@ -26,7 +26,7 @@ import (
 	"time"
 
 	"github.com/Azure/go-autorest/logger"
-	"github.com/Azure/go-autorest/version"
+	"github.com/Azure/go-autorest/tracing"
 )
 
 const (
@@ -147,6 +147,7 @@ type Client struct {
 	PollingDelay time.Duration
 
 	// PollingDuration sets the maximum polling time after which an error is returned.
+	// Setting this to zero will use the provided context to control the duration.
 	PollingDuration time.Duration
 
 	// RetryAttempts sets the default number of retry attempts for client.
@@ -173,7 +174,7 @@ func NewClientWithUserAgent(ua string) Client {
 		PollingDuration: DefaultPollingDuration,
 		RetryAttempts:   DefaultRetryAttempts,
 		RetryDuration:   DefaultRetryDuration,
-		UserAgent:       version.UserAgent(),
+		UserAgent:       UserAgent(),
 	}
 	c.Sender = c.sender()
 	c.AddToUserAgent(ua)
@@ -229,8 +230,10 @@ func (c Client) Do(r *http.Request) (*http.Response, error) {
 func (c Client) sender() Sender {
 	if c.Sender == nil {
 		j, _ := cookiejar.New(nil)
-		return &http.Client{Jar: j}
+		client := &http.Client{Jar: j, Transport: tracing.Transport}
+		return client
 	}
+
 	return c.Sender
 }
 

vendor/github.com/Azure/go-autorest/autorest/sender.go

@@ -21,6 +21,8 @@ import (
 	"net/http"
 	"strconv"
 	"time"
+
+	"github.com/Azure/go-autorest/tracing"
 )
 
 // Sender is the interface that wraps the Do method to send HTTP requests.
@@ -38,7 +40,7 @@ func (sf SenderFunc) Do(r *http.Request) (*http.Response, error) {
 	return sf(r)
 }
 
-// SendDecorator takes and possibily decorates, by wrapping, a Sender. Decorators may affect the
+// SendDecorator takes and possibly decorates, by wrapping, a Sender. Decorators may affect the
 // http.Request and pass it along or, first, pass the http.Request along then react to the
 // http.Response result.
 type SendDecorator func(Sender) Sender
@@ -68,7 +70,7 @@ func DecorateSender(s Sender, decorators ...SendDecorator) Sender {
 //
 // Send will not poll or retry requests.
 func Send(r *http.Request, decorators ...SendDecorator) (*http.Response, error) {
-	return SendWithSender(&http.Client{}, r, decorators...)
+	return SendWithSender(&http.Client{Transport: tracing.Transport}, r, decorators...)
 }
 
 // SendWithSender sends the passed http.Request, through the provided Sender, returning the
@@ -216,8 +218,7 @@ func DoRetryForStatusCodes(attempts int, backoff time.Duration, codes ...int) Se
 		return SenderFunc(func(r *http.Request) (resp *http.Response, err error) {
 			rr := NewRetriableRequest(r)
 			// Increment to add the first call (attempts denotes number of retries)
-			attempts++
+			for attempt := 0; attempt < attempts+1; {
-			for attempt := 0; attempt < attempts; {
 				err = rr.Prepare()
 				if err != nil {
 					return resp, err
@@ -234,7 +235,7 @@ func DoRetryForStatusCodes(attempts int, backoff time.Duration, codes ...int) Se
 				}
 				delayed := DelayWithRetryAfter(resp, r.Context().Done())
 				if !delayed && !DelayForBackoff(backoff, attempt, r.Context().Done()) {
-					return nil, r.Context().Err()
+					return resp, r.Context().Err()
 				}
 				// don't count a 429 against the number of attempts
 				// so that we continue to retry until it succeeds

vendor/github.com/Azure/go-autorest/autorest/utility.go

@@ -157,7 +157,7 @@ func AsStringSlice(s interface{}) ([]string, error) {
 }
 
 // String method converts interface v to string. If interface is a list, it
-// joins list elements using the seperator. Note that only sep[0] will be used for
+// joins list elements using the separator. Note that only sep[0] will be used for
 // joining if any separator is specified.
 func String(v interface{}, sep ...string) string {
 	if len(sep) == 0 {

vendor/github.com/Azure/go-autorest/autorest/version.go

@@ -1,7 +1,5 @@
 package autorest
 
-import "github.com/Azure/go-autorest/version"
-
 // Copyright 2017 Microsoft Corporation
 //
 //  Licensed under the Apache License, Version 2.0 (the "License");
@@ -16,7 +14,28 @@ import "github.com/Azure/go-autorest/version"
 //  See the License for the specific language governing permissions and
 //  limitations under the License.
 
+import (
+	"fmt"
+	"runtime"
+)
+
+const number = "v11.4.0"
+
+var (
+	userAgent = fmt.Sprintf("Go/%s (%s-%s) go-autorest/%s",
+		runtime.Version(),
+		runtime.GOARCH,
+		runtime.GOOS,
+		number,
+	)
+)
+
+// UserAgent returns a string containing the Go version, system architecture and OS, and the go-autorest version.
+func UserAgent() string {
+	return userAgent
+}
+
 // Version returns the semantic version (see http://semver.org).
 func Version() string {
-	return version.Number
+	return number
 }

vendor/github.com/Azure/go-autorest/logger/logger.go

@@ -162,7 +162,7 @@ type Writer interface {
 	// WriteResponse writes the specified HTTP response to the logger if the log level is greater than
 	// or equal to LogInfo.  The response body, if set, is logged at level LogDebug or higher.
 	// Custom filters can be specified to exclude URL, header, and/or body content from the log.
-	// By default no respone content is excluded.
+	// By default no response content is excluded.
 	WriteResponse(resp *http.Response, filter Filter)
 }
 
@@ -318,7 +318,7 @@ func (fl fileLogger) WriteResponse(resp *http.Response, filter Filter) {
 // returns true if the provided body should be included in the log
 func (fl fileLogger) shouldLogBody(header http.Header, body io.ReadCloser) bool {
 	ct := header.Get("Content-Type")
-	return fl.logLevel >= LogDebug && body != nil && strings.Index(ct, "application/octet-stream") == -1
+	return fl.logLevel >= LogDebug && body != nil && !strings.Contains(ct, "application/octet-stream")
 }
 
 // creates standard header for log entries, it contains a timestamp and the log level

vendor/github.com/Azure/go-autorest/tracing/tracing.go

@@ -0,0 +1,190 @@
+package tracing
+
+// Copyright 2018 Microsoft Corporation
+//
+//  Licensed under the Apache License, Version 2.0 (the "License");
+//  you may not use this file except in compliance with the License.
+//  You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS,
+//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+//  See the License for the specific language governing permissions and
+//  limitations under the License.
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"os"
+
+	"contrib.go.opencensus.io/exporter/ocagent"
+	"go.opencensus.io/plugin/ochttp"
+	"go.opencensus.io/plugin/ochttp/propagation/tracecontext"
+	"go.opencensus.io/stats/view"
+	"go.opencensus.io/trace"
+)
+
+var (
+	// Transport is the default tracing RoundTripper. The custom options setter will control
+	// if traces are being emitted or not.
+	Transport = &ochttp.Transport{
+		Propagation:     &tracecontext.HTTPFormat{},
+		GetStartOptions: getStartOptions,
+	}
+
+	// enabled is the flag for marking if tracing is enabled.
+	enabled = false
+
+	// Sampler is the tracing sampler. If tracing is disabled it will never sample. Otherwise
+	// it will be using the parent sampler or the default.
+	sampler = trace.NeverSample()
+
+	// Views for metric instrumentation.
+	views = map[string]*view.View{}
+
+	// the trace exporter
+	traceExporter trace.Exporter
+)
+
+func init() {
+	enableFromEnv()
+}
+
+func enableFromEnv() {
+	_, ok := os.LookupEnv("AZURE_SDK_TRACING_ENABLED")
+	_, legacyOk := os.LookupEnv("AZURE_SDK_TRACING_ENABELD")
+	if ok || legacyOk {
+		agentEndpoint, ok := os.LookupEnv("OCAGENT_TRACE_EXPORTER_ENDPOINT")
+
+		if ok {
+			EnableWithAIForwarding(agentEndpoint)
+		} else {
+			Enable()
+		}
+	}
+}
+
+// IsEnabled returns true if monitoring is enabled for the sdk.
+func IsEnabled() bool {
+	return enabled
+}
+
+// Enable will start instrumentation for metrics and traces.
+func Enable() error {
+	enabled = true
+	sampler = nil
+
+	err := initStats()
+	return err
+}
+
+// Disable will disable instrumentation for metrics and traces.
+func Disable() {
+	disableStats()
+	sampler = trace.NeverSample()
+	if traceExporter != nil {
+		trace.UnregisterExporter(traceExporter)
+	}
+	enabled = false
+}
+
+// EnableWithAIForwarding will start instrumentation and will connect to app insights forwarder
+// exporter making the metrics and traces available in app insights.
+func EnableWithAIForwarding(agentEndpoint string) (err error) {
+	err = Enable()
+	if err != nil {
+		return err
+	}
+
+	traceExporter, err := ocagent.NewExporter(ocagent.WithInsecure(), ocagent.WithAddress(agentEndpoint))
+	if err != nil {
+		return err
+	}
+	trace.RegisterExporter(traceExporter)
+	return
+}
+
+// getStartOptions is the custom options setter for the ochttp package.
+func getStartOptions(*http.Request) trace.StartOptions {
+	return trace.StartOptions{
+		Sampler: sampler,
+	}
+}
+
+// initStats registers the views for the http metrics
+func initStats() (err error) {
+	clientViews := []*view.View{
+		ochttp.ClientCompletedCount,
+		ochttp.ClientRoundtripLatencyDistribution,
+		ochttp.ClientReceivedBytesDistribution,
+		ochttp.ClientSentBytesDistribution,
+	}
+	for _, cv := range clientViews {
+		vn := fmt.Sprintf("Azure/go-autorest/tracing-%s", cv.Name)
+		views[vn] = cv.WithName(vn)
+		err = view.Register(views[vn])
+		if err != nil {
+			return err
+		}
+	}
+	return
+}
+
+// disableStats will unregister the previously registered metrics
+func disableStats() {
+	for _, v := range views {
+		view.Unregister(v)
+	}
+}
+
+// StartSpan starts a trace span
+func StartSpan(ctx context.Context, name string) context.Context {
+	ctx, _ = trace.StartSpan(ctx, name, trace.WithSampler(sampler))
+	return ctx
+}
+
+// EndSpan ends a previously started span stored in the context
+func EndSpan(ctx context.Context, httpStatusCode int, err error) {
+	span := trace.FromContext(ctx)
+
+	if span == nil {
+		return
+	}
+
+	if err != nil {
+		span.SetStatus(trace.Status{Message: err.Error(), Code: toTraceStatusCode(httpStatusCode)})
+	}
+	span.End()
+}
+
+// toTraceStatusCode converts HTTP Codes to OpenCensus codes as defined
+// at https://github.com/census-instrumentation/opencensus-specs/blob/master/trace/HTTP.md#status
+func toTraceStatusCode(httpStatusCode int) int32 {
+	switch {
+	case http.StatusOK <= httpStatusCode && httpStatusCode < http.StatusBadRequest:
+		return trace.StatusCodeOK
+	case httpStatusCode == http.StatusBadRequest:
+		return trace.StatusCodeInvalidArgument
+	case httpStatusCode == http.StatusUnauthorized: // 401 is actually unauthenticated.
+		return trace.StatusCodeUnauthenticated
+	case httpStatusCode == http.StatusForbidden:
+		return trace.StatusCodePermissionDenied
+	case httpStatusCode == http.StatusNotFound:
+		return trace.StatusCodeNotFound
+	case httpStatusCode == http.StatusTooManyRequests:
+		return trace.StatusCodeResourceExhausted
+	case httpStatusCode == 499:
+		return trace.StatusCodeCancelled
+	case httpStatusCode == http.StatusNotImplemented:
+		return trace.StatusCodeUnimplemented
+	case httpStatusCode == http.StatusServiceUnavailable:
+		return trace.StatusCodeUnavailable
+	case httpStatusCode == http.StatusGatewayTimeout:
+		return trace.StatusCodeDeadlineExceeded
+	default:
+		return trace.StatusCodeUnknown
+	}
+}

vendor/github.com/cenkalti/backoff/.travis.yml

@@ -1,6 +1,6 @@
 language: go
 go:
-  - 1.3.3
+  - 1.7
   - 1.x
   - tip
 before_install:

vendor/github.com/cenkalti/backoff/README.md

@@ -24,7 +24,7 @@ See https://godoc.org/github.com/cenkalti/backoff#pkg-examples
 [coveralls]: https://coveralls.io/github/cenkalti/backoff?branch=master
 [coveralls image]: https://coveralls.io/repos/github/cenkalti/backoff/badge.svg?branch=master
 
-[google-http-java-client]: https://github.com/google/google-http-java-client
+[google-http-java-client]: https://github.com/google/google-http-java-client/blob/da1aa993e90285ec18579f1553339b00e19b3ab5/google-http-client/src/main/java/com/google/api/client/util/ExponentialBackOff.java
 [exponential backoff wiki]: http://en.wikipedia.org/wiki/Exponential_backoff
 
 [advanced example]: https://godoc.org/github.com/cenkalti/backoff#example_

vendor/github.com/cenkalti/backoff/context.go

@@ -1,9 +1,8 @@
 package backoff
 
 import (
+	"context"
 	"time"
-
-	"golang.org/x/net/context"
 )
 
 // BackOffContext is a backoff policy that stops retrying after the context
@@ -52,9 +51,13 @@ func (b *backOffContext) Context() context.Context {
 
 func (b *backOffContext) NextBackOff() time.Duration {
 	select {
-	case <-b.Context().Done():
+	case <-b.ctx.Done():
 		return Stop
 	default:
-		return b.BackOff.NextBackOff()
 	}
+	next := b.BackOff.NextBackOff()
+	if deadline, ok := b.ctx.Deadline(); ok && deadline.Sub(time.Now()) < next {
+		return Stop
+	}
+	return next
 }

vendor/github.com/cenkalti/backoff/exponential.go

@@ -63,7 +63,6 @@ type ExponentialBackOff struct {
 
 	currentInterval time.Duration
 	startTime       time.Time
-	random          *rand.Rand
 }
 
 // Clock is an interface that returns current time for BackOff.
@@ -89,7 +88,6 @@ func NewExponentialBackOff() *ExponentialBackOff {
 		MaxInterval:         DefaultMaxInterval,
 		MaxElapsedTime:      DefaultMaxElapsedTime,
 		Clock:               SystemClock,
-		random:              rand.New(rand.NewSource(time.Now().UnixNano())),
 	}
 	b.Reset()
 	return b
@@ -118,10 +116,7 @@ func (b *ExponentialBackOff) NextBackOff() time.Duration {
 		return Stop
 	}
 	defer b.incrementCurrentInterval()
-	if b.random == nil {
+	return getRandomValueFromInterval(b.RandomizationFactor, rand.Float64(), b.currentInterval)
-		b.random = rand.New(rand.NewSource(time.Now().UnixNano()))
-	}
-	return getRandomValueFromInterval(b.RandomizationFactor, b.random.Float64(), b.currentInterval)
 }
 
 // GetElapsedTime returns the elapsed time since an ExponentialBackOff instance

vendor/github.com/cenkalti/backoff/retry.go

@@ -15,7 +15,6 @@ type Notify func(error, time.Duration)
 
 // Retry the operation o until it does not return error or BackOff stops.
 // o is guaranteed to be run at least once.
-// It is the caller's responsibility to reset b after Retry returns.
 //
 // If o returns a *PermanentError, the operation is not retried, and the
 // wrapped error is returned.
@@ -29,6 +28,7 @@ func Retry(o Operation, b BackOff) error { return RetryNotify(o, b, nil) }
 func RetryNotify(operation Operation, b BackOff, notify Notify) error {
 	var err error
 	var next time.Duration
+	var t *time.Timer
 
 	cb := ensureContext(b)
 
@@ -42,7 +42,7 @@ func RetryNotify(operation Operation, b BackOff, notify Notify) error {
 			return permanent.Err
 		}
 
-		if next = b.NextBackOff(); next == Stop {
+		if next = cb.NextBackOff(); next == Stop {
 			return err
 		}
 
@@ -50,11 +50,15 @@ func RetryNotify(operation Operation, b BackOff, notify Notify) error {
 			notify(err, next)
 		}
 
-		t := time.NewTimer(next)
+		if t == nil {
+			t = time.NewTimer(next)
+			defer t.Stop()
+		} else {
+			t.Reset(next)
+		}
 
 		select {
 		case <-cb.Context().Done():
-			t.Stop()
 			return err
 		case <-t.C:
 		}

vendor/github.com/cenkalti/backoff/ticker.go

@@ -1,7 +1,6 @@
 package backoff
 
 import (
-	"runtime"
 	"sync"
 	"time"
 )
@@ -34,7 +33,6 @@ func NewTicker(b BackOff) *Ticker {
 	}
 	t.b.Reset()
 	go t.run()
-	runtime.SetFinalizer(t, (*Ticker).Stop)
 	return t
 }
 

vendor/github.com/census-instrumentation/opencensus-proto/AUTHORS

@@ -0,0 +1 @@
+Google Inc.

vendor/github.com/census-instrumentation/opencensus-proto/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
+      separable from, or merely link (or bind by name) to the interfaces of,
+      the Work and Derivative Works thereof.
+
+      "Contribution" shall mean any work of authorship, including
+      the original version of the Work and any modifications or additions
+      to that Work or Derivative Works thereof, that is intentionally
+      submitted to Licensor for inclusion in the Work by the copyright owner
+      or by an individual or Legal Entity authorized to submit on behalf of
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+      means any form of electronic, verbal, or written communication sent
+      to the Licensor or its representatives, including but not limited to
+      communication on electronic mailing lists, source code control systems,
+      and issue tracking systems that are managed by, or on behalf of, the
+      Licensor for the purpose of discussing and improving the Work, but
+      excluding communication that is conspicuously marked or otherwise
+      designated in writing by the copyright owner as "Not a Contribution."
+
+      "Contributor" shall mean Licensor and any individual or Legal Entity
+      on behalf of whom a Contribution has been received by Licensor and
+      subsequently incorporated within the Work.
+
+   2. Grant of Copyright License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
+      worldwide, non-exclusive, no-charge, royalty-free, irrevocable
+      copyright license to reproduce, prepare Derivative Works of,
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+      Work and such Derivative Works in Source or Object form.
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+   3. Grant of Patent License. Subject to the terms and conditions of
+      this License, each Contributor hereby grants to You a perpetual,
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+      (except as stated in this section) patent license to make, have made,
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+      where such license applies only to those patent claims licensable
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+      institute patent litigation against any entity (including a
+      cross-claim or counterclaim in a lawsuit) alleging that the Work
+      or a Contribution incorporated within the Work constitutes direct
+      or contributory patent infringement, then any patent licenses
+      granted to You under this License for that Work shall terminate
+      as of the date such litigation is filed.
+
+   4. Redistribution. You may reproduce and distribute copies of the
+      Work or Derivative Works thereof in any medium, with or without
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+      meet the following conditions:
+
+      (a) You must give any other recipients of the Work or
+          Derivative Works a copy of this License; and
+
+      (b) You must cause any modified files to carry prominent notices
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+
+      (c) You must retain, in the Source form of any Derivative Works
+          that You distribute, all copyright, patent, trademark, and
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+          excluding those notices that do not pertain to any part of
+          the Derivative Works; and
+
+      (d) If the Work includes a "NOTICE" text file as part of its
+          distribution, then any Derivative Works that You distribute must
+          include a readable copy of the attribution notices contained
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+          as part of the Derivative Works; within the Source form or
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+          of the NOTICE file are for informational purposes only and
+          do not modify the License. You may add Your own attribution
+          notices within Derivative Works that You distribute, alongside
+          or as an addendum to the NOTICE text from the Work, provided
+          that such additional attribution notices cannot be construed
+          as modifying the License.
+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
+      WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
+      risks associated with Your exercise of permissions under this License.
+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
+      result of this License or out of the use or inability to use the
+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
+      other commercial damages or losses), even if such Contributor
+      has been advised of the possibility of such damages.
+
+   9. Accepting Warranty or Additional Liability. While redistributing
+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
+      or other liability obligations and/or rights consistent with this
+      License. However, in accepting such obligations, You may act only
+      on Your own behalf and on Your sole responsibility, not on behalf
+      of any other Contributor, and only if You agree to indemnify,
+      defend, and hold each Contributor harmless for any liability
+      incurred by, or claims asserted against, such Contributor by reason
+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS
+
+   APPENDIX: How to apply the Apache License to your work.
+
+      To apply the Apache License to your work, attach the following
+      boilerplate notice, with the fields enclosed by brackets "[]"
+      replaced with your own identifying information. (Don't include
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+      file or class name and description of purpose be included on the
+      same "printed page" as the copyright notice for easier
+      identification within third-party archives.
+
+   Copyright [yyyy] [name of copyright owner]
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.

vendor/github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1/common.pb.go

@@ -0,0 +1,348 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: opencensus/proto/agent/common/v1/common.proto
+
+package v1 // import "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import timestamp "github.com/golang/protobuf/ptypes/timestamp"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type LibraryInfo_Language int32
+
+const (
+	LibraryInfo_LANGUAGE_UNSPECIFIED LibraryInfo_Language = 0
+	LibraryInfo_CPP                  LibraryInfo_Language = 1
+	LibraryInfo_C_SHARP              LibraryInfo_Language = 2
+	LibraryInfo_ERLANG               LibraryInfo_Language = 3
+	LibraryInfo_GO_LANG              LibraryInfo_Language = 4
+	LibraryInfo_JAVA                 LibraryInfo_Language = 5
+	LibraryInfo_NODE_JS              LibraryInfo_Language = 6
+	LibraryInfo_PHP                  LibraryInfo_Language = 7
+	LibraryInfo_PYTHON               LibraryInfo_Language = 8
+	LibraryInfo_RUBY                 LibraryInfo_Language = 9
+)
+
+var LibraryInfo_Language_name = map[int32]string{
+	0: "LANGUAGE_UNSPECIFIED",
+	1: "CPP",
+	2: "C_SHARP",
+	3: "ERLANG",
+	4: "GO_LANG",
+	5: "JAVA",
+	6: "NODE_JS",
+	7: "PHP",
+	8: "PYTHON",
+	9: "RUBY",
+}
+var LibraryInfo_Language_value = map[string]int32{
+	"LANGUAGE_UNSPECIFIED": 0,
+	"CPP":                  1,
+	"C_SHARP":              2,
+	"ERLANG":               3,
+	"GO_LANG":              4,
+	"JAVA":                 5,
+	"NODE_JS":              6,
+	"PHP":                  7,
+	"PYTHON":               8,
+	"RUBY":                 9,
+}
+
+func (x LibraryInfo_Language) String() string {
+	return proto.EnumName(LibraryInfo_Language_name, int32(x))
+}
+func (LibraryInfo_Language) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_common_5e0eaac3929d3455, []int{2, 0}
+}
+
+// Identifier metadata of the Node (Application instrumented with OpenCensus)
+// that connects to OpenCensus Agent.
+// In the future we plan to extend the identifier proto definition to support
+// additional information (e.g cloud id, etc.)
+type Node struct {
+	// Identifier that uniquely identifies a process within a VM/container.
+	Identifier *ProcessIdentifier `protobuf:"bytes,1,opt,name=identifier,proto3" json:"identifier,omitempty"`
+	// Information on the OpenCensus Library that initiates the stream.
+	LibraryInfo *LibraryInfo `protobuf:"bytes,2,opt,name=library_info,json=libraryInfo,proto3" json:"library_info,omitempty"`
+	// Additional information on service.
+	ServiceInfo *ServiceInfo `protobuf:"bytes,3,opt,name=service_info,json=serviceInfo,proto3" json:"service_info,omitempty"`
+	// Additional attributes.
+	Attributes           map[string]string `protobuf:"bytes,4,rep,name=attributes,proto3" json:"attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
+	XXX_unrecognized     []byte            `json:"-"`
+	XXX_sizecache        int32             `json:"-"`
+}
+
+func (m *Node) Reset()         { *m = Node{} }
+func (m *Node) String() string { return proto.CompactTextString(m) }
+func (*Node) ProtoMessage()    {}
+func (*Node) Descriptor() ([]byte, []int) {
+	return fileDescriptor_common_5e0eaac3929d3455, []int{0}
+}
+func (m *Node) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Node.Unmarshal(m, b)
+}
+func (m *Node) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Node.Marshal(b, m, deterministic)
+}
+func (dst *Node) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Node.Merge(dst, src)
+}
+func (m *Node) XXX_Size() int {
+	return xxx_messageInfo_Node.Size(m)
+}
+func (m *Node) XXX_DiscardUnknown() {
+	xxx_messageInfo_Node.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Node proto.InternalMessageInfo
+
+func (m *Node) GetIdentifier() *ProcessIdentifier {
+	if m != nil {
+		return m.Identifier
+	}
+	return nil
+}
+
+func (m *Node) GetLibraryInfo() *LibraryInfo {
+	if m != nil {
+		return m.LibraryInfo
+	}
+	return nil
+}
+
+func (m *Node) GetServiceInfo() *ServiceInfo {
+	if m != nil {
+		return m.ServiceInfo
+	}
+	return nil
+}
+
+func (m *Node) GetAttributes() map[string]string {
+	if m != nil {
+		return m.Attributes
+	}
+	return nil
+}
+
+// Identifier that uniquely identifies a process within a VM/container.
+type ProcessIdentifier struct {
+	// The host name. Usually refers to the machine/container name.
+	// For example: os.Hostname() in Go, socket.gethostname() in Python.
+	HostName string `protobuf:"bytes,1,opt,name=host_name,json=hostName,proto3" json:"host_name,omitempty"`
+	// Process id.
+	Pid uint32 `protobuf:"varint,2,opt,name=pid,proto3" json:"pid,omitempty"`
+	// Start time of this ProcessIdentifier. Represented in epoch time.
+	StartTimestamp       *timestamp.Timestamp `protobuf:"bytes,3,opt,name=start_timestamp,json=startTimestamp,proto3" json:"start_timestamp,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}             `json:"-"`
+	XXX_unrecognized     []byte               `json:"-"`
+	XXX_sizecache        int32                `json:"-"`
+}
+
+func (m *ProcessIdentifier) Reset()         { *m = ProcessIdentifier{} }
+func (m *ProcessIdentifier) String() string { return proto.CompactTextString(m) }
+func (*ProcessIdentifier) ProtoMessage()    {}
+func (*ProcessIdentifier) Descriptor() ([]byte, []int) {
+	return fileDescriptor_common_5e0eaac3929d3455, []int{1}
+}
+func (m *ProcessIdentifier) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ProcessIdentifier.Unmarshal(m, b)
+}
+func (m *ProcessIdentifier) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ProcessIdentifier.Marshal(b, m, deterministic)
+}
+func (dst *ProcessIdentifier) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ProcessIdentifier.Merge(dst, src)
+}
+func (m *ProcessIdentifier) XXX_Size() int {
+	return xxx_messageInfo_ProcessIdentifier.Size(m)
+}
+func (m *ProcessIdentifier) XXX_DiscardUnknown() {
+	xxx_messageInfo_ProcessIdentifier.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ProcessIdentifier proto.InternalMessageInfo
+
+func (m *ProcessIdentifier) GetHostName() string {
+	if m != nil {
+		return m.HostName
+	}
+	return ""
+}
+
+func (m *ProcessIdentifier) GetPid() uint32 {
+	if m != nil {
+		return m.Pid
+	}
+	return 0
+}
+
+func (m *ProcessIdentifier) GetStartTimestamp() *timestamp.Timestamp {
+	if m != nil {
+		return m.StartTimestamp
+	}
+	return nil
+}
+
+// Information on OpenCensus Library.
+type LibraryInfo struct {
+	// Language of OpenCensus Library.
+	Language LibraryInfo_Language `protobuf:"varint,1,opt,name=language,proto3,enum=opencensus.proto.agent.common.v1.LibraryInfo_Language" json:"language,omitempty"`
+	// Version of Agent exporter of Library.
+	ExporterVersion string `protobuf:"bytes,2,opt,name=exporter_version,json=exporterVersion,proto3" json:"exporter_version,omitempty"`
+	// Version of OpenCensus Library.
+	CoreLibraryVersion   string   `protobuf:"bytes,3,opt,name=core_library_version,json=coreLibraryVersion,proto3" json:"core_library_version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *LibraryInfo) Reset()         { *m = LibraryInfo{} }
+func (m *LibraryInfo) String() string { return proto.CompactTextString(m) }
+func (*LibraryInfo) ProtoMessage()    {}
+func (*LibraryInfo) Descriptor() ([]byte, []int) {
+	return fileDescriptor_common_5e0eaac3929d3455, []int{2}
+}
+func (m *LibraryInfo) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_LibraryInfo.Unmarshal(m, b)
+}
+func (m *LibraryInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_LibraryInfo.Marshal(b, m, deterministic)
+}
+func (dst *LibraryInfo) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_LibraryInfo.Merge(dst, src)
+}
+func (m *LibraryInfo) XXX_Size() int {
+	return xxx_messageInfo_LibraryInfo.Size(m)
+}
+func (m *LibraryInfo) XXX_DiscardUnknown() {
+	xxx_messageInfo_LibraryInfo.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_LibraryInfo proto.InternalMessageInfo
+
+func (m *LibraryInfo) GetLanguage() LibraryInfo_Language {
+	if m != nil {
+		return m.Language
+	}
+	return LibraryInfo_LANGUAGE_UNSPECIFIED
+}
+
+func (m *LibraryInfo) GetExporterVersion() string {
+	if m != nil {
+		return m.ExporterVersion
+	}
+	return ""
+}
+
+func (m *LibraryInfo) GetCoreLibraryVersion() string {
+	if m != nil {
+		return m.CoreLibraryVersion
+	}
+	return ""
+}
+
+// Additional service information.
+type ServiceInfo struct {
+	// Name of the service.
+	Name                 string   `protobuf:"bytes,1,opt,name=name,proto3" json:"name,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ServiceInfo) Reset()         { *m = ServiceInfo{} }
+func (m *ServiceInfo) String() string { return proto.CompactTextString(m) }
+func (*ServiceInfo) ProtoMessage()    {}
+func (*ServiceInfo) Descriptor() ([]byte, []int) {
+	return fileDescriptor_common_5e0eaac3929d3455, []int{3}
+}
+func (m *ServiceInfo) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ServiceInfo.Unmarshal(m, b)
+}
+func (m *ServiceInfo) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ServiceInfo.Marshal(b, m, deterministic)
+}
+func (dst *ServiceInfo) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ServiceInfo.Merge(dst, src)
+}
+func (m *ServiceInfo) XXX_Size() int {
+	return xxx_messageInfo_ServiceInfo.Size(m)
+}
+func (m *ServiceInfo) XXX_DiscardUnknown() {
+	xxx_messageInfo_ServiceInfo.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ServiceInfo proto.InternalMessageInfo
+
+func (m *ServiceInfo) GetName() string {
+	if m != nil {
+		return m.Name
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*Node)(nil), "opencensus.proto.agent.common.v1.Node")
+	proto.RegisterMapType((map[string]string)(nil), "opencensus.proto.agent.common.v1.Node.AttributesEntry")
+	proto.RegisterType((*ProcessIdentifier)(nil), "opencensus.proto.agent.common.v1.ProcessIdentifier")
+	proto.RegisterType((*LibraryInfo)(nil), "opencensus.proto.agent.common.v1.LibraryInfo")
+	proto.RegisterType((*ServiceInfo)(nil), "opencensus.proto.agent.common.v1.ServiceInfo")
+	proto.RegisterEnum("opencensus.proto.agent.common.v1.LibraryInfo_Language", LibraryInfo_Language_name, LibraryInfo_Language_value)
+}
+
+func init() {
+	proto.RegisterFile("opencensus/proto/agent/common/v1/common.proto", fileDescriptor_common_5e0eaac3929d3455)
+}
+
+var fileDescriptor_common_5e0eaac3929d3455 = []byte{
+	// 590 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x8c, 0x94, 0x4f, 0x4f, 0xdb, 0x3e,
+	0x1c, 0xc6, 0x7f, 0x69, 0x0a, 0xb4, 0xdf, 0xfc, 0x06, 0x99, 0xc5, 0xa1, 0x62, 0x87, 0xb1, 0xee,
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+	0x72, 0x56, 0x44, 0xb2, 0x53, 0xce, 0x6f, 0xed, 0x18, 0xbd, 0x87, 0xdd, 0x09, 0x17, 0x24, 0x2e,
+	0x1f, 0x56, 0x29, 0x77, 0x8d, 0x1c, 0xe9, 0x5d, 0x71, 0x58, 0xe1, 0x68, 0xff, 0x72, 0xa0, 0x51,
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+	0xdf, 0x00, 0x00, 0x00, 0xff, 0xff, 0x94, 0xe5, 0x77, 0x76, 0x8e, 0x04, 0x00, 0x00,
+}

vendor/github.com/census-instrumentation/opencensus-proto/gen-go/agent/metrics/v1/metrics_service.pb.go

@@ -0,0 +1,263 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: opencensus/proto/agent/metrics/v1/metrics_service.proto
+
+package v1 // import "github.com/census-instrumentation/opencensus-proto/gen-go/agent/metrics/v1"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import v1 "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
+import v11 "github.com/census-instrumentation/opencensus-proto/gen-go/metrics/v1"
+import v12 "github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type ExportMetricsServiceRequest struct {
+	// This is required only in the first message on the stream or if the
+	// previous sent ExportMetricsServiceRequest message has a different Node (e.g.
+	// when the same RPC is used to send Metrics from multiple Applications).
+	Node *v1.Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
+	// A list of metrics that belong to the last received Node.
+	Metrics []*v11.Metric `protobuf:"bytes,2,rep,name=metrics,proto3" json:"metrics,omitempty"`
+	// The resource for the metrics in this message that do not have an explicit
+	// resource set.
+	// If unset, the most recently set resource in the RPC stream applies. It is
+	// valid to never be set within a stream, e.g. when no resource info is known
+	// at all or when all sent metrics have an explicit resource set.
+	Resource             *v12.Resource `protobuf:"bytes,3,opt,name=resource,proto3" json:"resource,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}      `json:"-"`
+	XXX_unrecognized     []byte        `json:"-"`
+	XXX_sizecache        int32         `json:"-"`
+}
+
+func (m *ExportMetricsServiceRequest) Reset()         { *m = ExportMetricsServiceRequest{} }
+func (m *ExportMetricsServiceRequest) String() string { return proto.CompactTextString(m) }
+func (*ExportMetricsServiceRequest) ProtoMessage()    {}
+func (*ExportMetricsServiceRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_metrics_service_0b252d64875a1756, []int{0}
+}
+func (m *ExportMetricsServiceRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ExportMetricsServiceRequest.Unmarshal(m, b)
+}
+func (m *ExportMetricsServiceRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ExportMetricsServiceRequest.Marshal(b, m, deterministic)
+}
+func (dst *ExportMetricsServiceRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ExportMetricsServiceRequest.Merge(dst, src)
+}
+func (m *ExportMetricsServiceRequest) XXX_Size() int {
+	return xxx_messageInfo_ExportMetricsServiceRequest.Size(m)
+}
+func (m *ExportMetricsServiceRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_ExportMetricsServiceRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ExportMetricsServiceRequest proto.InternalMessageInfo
+
+func (m *ExportMetricsServiceRequest) GetNode() *v1.Node {
+	if m != nil {
+		return m.Node
+	}
+	return nil
+}
+
+func (m *ExportMetricsServiceRequest) GetMetrics() []*v11.Metric {
+	if m != nil {
+		return m.Metrics
+	}
+	return nil
+}
+
+func (m *ExportMetricsServiceRequest) GetResource() *v12.Resource {
+	if m != nil {
+		return m.Resource
+	}
+	return nil
+}
+
+type ExportMetricsServiceResponse struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ExportMetricsServiceResponse) Reset()         { *m = ExportMetricsServiceResponse{} }
+func (m *ExportMetricsServiceResponse) String() string { return proto.CompactTextString(m) }
+func (*ExportMetricsServiceResponse) ProtoMessage()    {}
+func (*ExportMetricsServiceResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_metrics_service_0b252d64875a1756, []int{1}
+}
+func (m *ExportMetricsServiceResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ExportMetricsServiceResponse.Unmarshal(m, b)
+}
+func (m *ExportMetricsServiceResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ExportMetricsServiceResponse.Marshal(b, m, deterministic)
+}
+func (dst *ExportMetricsServiceResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ExportMetricsServiceResponse.Merge(dst, src)
+}
+func (m *ExportMetricsServiceResponse) XXX_Size() int {
+	return xxx_messageInfo_ExportMetricsServiceResponse.Size(m)
+}
+func (m *ExportMetricsServiceResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_ExportMetricsServiceResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ExportMetricsServiceResponse proto.InternalMessageInfo
+
+func init() {
+	proto.RegisterType((*ExportMetricsServiceRequest)(nil), "opencensus.proto.agent.metrics.v1.ExportMetricsServiceRequest")
+	proto.RegisterType((*ExportMetricsServiceResponse)(nil), "opencensus.proto.agent.metrics.v1.ExportMetricsServiceResponse")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// MetricsServiceClient is the client API for MetricsService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type MetricsServiceClient interface {
+	// For performance reasons, it is recommended to keep this RPC
+	// alive for the entire life of the application.
+	Export(ctx context.Context, opts ...grpc.CallOption) (MetricsService_ExportClient, error)
+}
+
+type metricsServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewMetricsServiceClient(cc *grpc.ClientConn) MetricsServiceClient {
+	return &metricsServiceClient{cc}
+}
+
+func (c *metricsServiceClient) Export(ctx context.Context, opts ...grpc.CallOption) (MetricsService_ExportClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_MetricsService_serviceDesc.Streams[0], "/opencensus.proto.agent.metrics.v1.MetricsService/Export", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &metricsServiceExportClient{stream}
+	return x, nil
+}
+
+type MetricsService_ExportClient interface {
+	Send(*ExportMetricsServiceRequest) error
+	Recv() (*ExportMetricsServiceResponse, error)
+	grpc.ClientStream
+}
+
+type metricsServiceExportClient struct {
+	grpc.ClientStream
+}
+
+func (x *metricsServiceExportClient) Send(m *ExportMetricsServiceRequest) error {
+	return x.ClientStream.SendMsg(m)
+}
+
+func (x *metricsServiceExportClient) Recv() (*ExportMetricsServiceResponse, error) {
+	m := new(ExportMetricsServiceResponse)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+// MetricsServiceServer is the server API for MetricsService service.
+type MetricsServiceServer interface {
+	// For performance reasons, it is recommended to keep this RPC
+	// alive for the entire life of the application.
+	Export(MetricsService_ExportServer) error
+}
+
+func RegisterMetricsServiceServer(s *grpc.Server, srv MetricsServiceServer) {
+	s.RegisterService(&_MetricsService_serviceDesc, srv)
+}
+
+func _MetricsService_Export_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(MetricsServiceServer).Export(&metricsServiceExportServer{stream})
+}
+
+type MetricsService_ExportServer interface {
+	Send(*ExportMetricsServiceResponse) error
+	Recv() (*ExportMetricsServiceRequest, error)
+	grpc.ServerStream
+}
+
+type metricsServiceExportServer struct {
+	grpc.ServerStream
+}
+
+func (x *metricsServiceExportServer) Send(m *ExportMetricsServiceResponse) error {
+	return x.ServerStream.SendMsg(m)
+}
+
+func (x *metricsServiceExportServer) Recv() (*ExportMetricsServiceRequest, error) {
+	m := new(ExportMetricsServiceRequest)
+	if err := x.ServerStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+var _MetricsService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "opencensus.proto.agent.metrics.v1.MetricsService",
+	HandlerType: (*MetricsServiceServer)(nil),
+	Methods:     []grpc.MethodDesc{},
+	Streams: []grpc.StreamDesc{
+		{
+			StreamName:    "Export",
+			Handler:       _MetricsService_Export_Handler,
+			ServerStreams: true,
+			ClientStreams: true,
+		},
+	},
+	Metadata: "opencensus/proto/agent/metrics/v1/metrics_service.proto",
+}
+
+func init() {
+	proto.RegisterFile("opencensus/proto/agent/metrics/v1/metrics_service.proto", fileDescriptor_metrics_service_0b252d64875a1756)
+}
+
+var fileDescriptor_metrics_service_0b252d64875a1756 = []byte{
+	// 340 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x9c, 0x92, 0xc1, 0x4a, 0xf3, 0x40,
+	0x14, 0x85, 0xff, 0xf9, 0x2b, 0x55, 0xa6, 0xe0, 0x62, 0xdc, 0x94, 0x2a, 0x52, 0xab, 0x48, 0x45,
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+	0xc7, 0x97, 0x37, 0xc2, 0x5d, 0x80, 0xa0, 0x62, 0xd8, 0x98, 0x6e, 0x55, 0x61, 0xbb, 0xad, 0xa6,
+	0xdf, 0x2f, 0xea, 0x64, 0x3e, 0x0f, 0xca, 0x39, 0x58, 0x70, 0x83, 0x7d, 0xba, 0xf7, 0x73, 0x3b,
+	0x93, 0xa0, 0x32, 0x30, 0xfa, 0x24, 0x74, 0x7b, 0xf5, 0x88, 0x7d, 0x10, 0xda, 0x76, 0x0c, 0xbb,
+	0xe6, 0x6b, 0xdf, 0x91, 0xff, 0x72, 0x79, 0xbd, 0x9b, 0x3f, 0xf3, 0x2e, 0xde, 0xe0, 0xdf, 0x90,
+	0x9c, 0x91, 0xf1, 0x3b, 0xa1, 0x47, 0x12, 0xd7, 0x7b, 0x8d, 0x77, 0x56, 0x6d, 0x26, 0xb9, 0x6a,
+	0x42, 0x9e, 0xee, 0x22, 0x69, 0x5f, 0xd2, 0x59, 0xfe, 0x48, 0xc2, 0x19, 0x78, 0x52, 0x19, 0xab,
+	0xd3, 0x18, 0x94, 0x9d, 0x5a, 0x89, 0x4a, 0x2c, 0xbd, 0x3d, 0xb7, 0x32, 0x11, 0x28, 0x2f, 0xaa,
+	0xef, 0xfb, 0xac, 0x5d, 0x1c, 0x9f, 0x7f, 0x07, 0x00, 0x00, 0xff, 0xff, 0x16, 0x61, 0x3b, 0xc3,
+	0x1b, 0x03, 0x00, 0x00,
+}

vendor/github.com/census-instrumentation/opencensus-proto/gen-go/agent/trace/v1/trace_service.pb.go

@@ -0,0 +1,440 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: opencensus/proto/agent/trace/v1/trace_service.proto
+
+package v1 // import "github.com/census-instrumentation/opencensus-proto/gen-go/agent/trace/v1"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import v1 "github.com/census-instrumentation/opencensus-proto/gen-go/agent/common/v1"
+import v12 "github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1"
+import v11 "github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1"
+
+import (
+	context "golang.org/x/net/context"
+	grpc "google.golang.org/grpc"
+)
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+type CurrentLibraryConfig struct {
+	// This is required only in the first message on the stream or if the
+	// previous sent CurrentLibraryConfig message has a different Node (e.g.
+	// when the same RPC is used to configure multiple Applications).
+	Node *v1.Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
+	// Current configuration.
+	Config               *v11.TraceConfig `protobuf:"bytes,2,opt,name=config,proto3" json:"config,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
+	XXX_unrecognized     []byte           `json:"-"`
+	XXX_sizecache        int32            `json:"-"`
+}
+
+func (m *CurrentLibraryConfig) Reset()         { *m = CurrentLibraryConfig{} }
+func (m *CurrentLibraryConfig) String() string { return proto.CompactTextString(m) }
+func (*CurrentLibraryConfig) ProtoMessage()    {}
+func (*CurrentLibraryConfig) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_service_14d467877eaed17f, []int{0}
+}
+func (m *CurrentLibraryConfig) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_CurrentLibraryConfig.Unmarshal(m, b)
+}
+func (m *CurrentLibraryConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CurrentLibraryConfig.Marshal(b, m, deterministic)
+}
+func (dst *CurrentLibraryConfig) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CurrentLibraryConfig.Merge(dst, src)
+}
+func (m *CurrentLibraryConfig) XXX_Size() int {
+	return xxx_messageInfo_CurrentLibraryConfig.Size(m)
+}
+func (m *CurrentLibraryConfig) XXX_DiscardUnknown() {
+	xxx_messageInfo_CurrentLibraryConfig.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CurrentLibraryConfig proto.InternalMessageInfo
+
+func (m *CurrentLibraryConfig) GetNode() *v1.Node {
+	if m != nil {
+		return m.Node
+	}
+	return nil
+}
+
+func (m *CurrentLibraryConfig) GetConfig() *v11.TraceConfig {
+	if m != nil {
+		return m.Config
+	}
+	return nil
+}
+
+type UpdatedLibraryConfig struct {
+	// This field is ignored when the RPC is used to configure only one Application.
+	// This is required only in the first message on the stream or if the
+	// previous sent UpdatedLibraryConfig message has a different Node.
+	Node *v1.Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
+	// Requested updated configuration.
+	Config               *v11.TraceConfig `protobuf:"bytes,2,opt,name=config,proto3" json:"config,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}         `json:"-"`
+	XXX_unrecognized     []byte           `json:"-"`
+	XXX_sizecache        int32            `json:"-"`
+}
+
+func (m *UpdatedLibraryConfig) Reset()         { *m = UpdatedLibraryConfig{} }
+func (m *UpdatedLibraryConfig) String() string { return proto.CompactTextString(m) }
+func (*UpdatedLibraryConfig) ProtoMessage()    {}
+func (*UpdatedLibraryConfig) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_service_14d467877eaed17f, []int{1}
+}
+func (m *UpdatedLibraryConfig) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_UpdatedLibraryConfig.Unmarshal(m, b)
+}
+func (m *UpdatedLibraryConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_UpdatedLibraryConfig.Marshal(b, m, deterministic)
+}
+func (dst *UpdatedLibraryConfig) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_UpdatedLibraryConfig.Merge(dst, src)
+}
+func (m *UpdatedLibraryConfig) XXX_Size() int {
+	return xxx_messageInfo_UpdatedLibraryConfig.Size(m)
+}
+func (m *UpdatedLibraryConfig) XXX_DiscardUnknown() {
+	xxx_messageInfo_UpdatedLibraryConfig.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_UpdatedLibraryConfig proto.InternalMessageInfo
+
+func (m *UpdatedLibraryConfig) GetNode() *v1.Node {
+	if m != nil {
+		return m.Node
+	}
+	return nil
+}
+
+func (m *UpdatedLibraryConfig) GetConfig() *v11.TraceConfig {
+	if m != nil {
+		return m.Config
+	}
+	return nil
+}
+
+type ExportTraceServiceRequest struct {
+	// This is required only in the first message on the stream or if the
+	// previous sent ExportTraceServiceRequest message has a different Node (e.g.
+	// when the same RPC is used to send Spans from multiple Applications).
+	Node *v1.Node `protobuf:"bytes,1,opt,name=node,proto3" json:"node,omitempty"`
+	// A list of Spans that belong to the last received Node.
+	Spans []*v11.Span `protobuf:"bytes,2,rep,name=spans,proto3" json:"spans,omitempty"`
+	// The resource for the spans in this message that do not have an explicit
+	// resource set.
+	// If unset, the most recently set resource in the RPC stream applies. It is
+	// valid to never be set within a stream, e.g. when no resource info is known.
+	Resource             *v12.Resource `protobuf:"bytes,3,opt,name=resource,proto3" json:"resource,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}      `json:"-"`
+	XXX_unrecognized     []byte        `json:"-"`
+	XXX_sizecache        int32         `json:"-"`
+}
+
+func (m *ExportTraceServiceRequest) Reset()         { *m = ExportTraceServiceRequest{} }
+func (m *ExportTraceServiceRequest) String() string { return proto.CompactTextString(m) }
+func (*ExportTraceServiceRequest) ProtoMessage()    {}
+func (*ExportTraceServiceRequest) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_service_14d467877eaed17f, []int{2}
+}
+func (m *ExportTraceServiceRequest) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ExportTraceServiceRequest.Unmarshal(m, b)
+}
+func (m *ExportTraceServiceRequest) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ExportTraceServiceRequest.Marshal(b, m, deterministic)
+}
+func (dst *ExportTraceServiceRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ExportTraceServiceRequest.Merge(dst, src)
+}
+func (m *ExportTraceServiceRequest) XXX_Size() int {
+	return xxx_messageInfo_ExportTraceServiceRequest.Size(m)
+}
+func (m *ExportTraceServiceRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_ExportTraceServiceRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ExportTraceServiceRequest proto.InternalMessageInfo
+
+func (m *ExportTraceServiceRequest) GetNode() *v1.Node {
+	if m != nil {
+		return m.Node
+	}
+	return nil
+}
+
+func (m *ExportTraceServiceRequest) GetSpans() []*v11.Span {
+	if m != nil {
+		return m.Spans
+	}
+	return nil
+}
+
+func (m *ExportTraceServiceRequest) GetResource() *v12.Resource {
+	if m != nil {
+		return m.Resource
+	}
+	return nil
+}
+
+type ExportTraceServiceResponse struct {
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ExportTraceServiceResponse) Reset()         { *m = ExportTraceServiceResponse{} }
+func (m *ExportTraceServiceResponse) String() string { return proto.CompactTextString(m) }
+func (*ExportTraceServiceResponse) ProtoMessage()    {}
+func (*ExportTraceServiceResponse) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_service_14d467877eaed17f, []int{3}
+}
+func (m *ExportTraceServiceResponse) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ExportTraceServiceResponse.Unmarshal(m, b)
+}
+func (m *ExportTraceServiceResponse) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ExportTraceServiceResponse.Marshal(b, m, deterministic)
+}
+func (dst *ExportTraceServiceResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ExportTraceServiceResponse.Merge(dst, src)
+}
+func (m *ExportTraceServiceResponse) XXX_Size() int {
+	return xxx_messageInfo_ExportTraceServiceResponse.Size(m)
+}
+func (m *ExportTraceServiceResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_ExportTraceServiceResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ExportTraceServiceResponse proto.InternalMessageInfo
+
+func init() {
+	proto.RegisterType((*CurrentLibraryConfig)(nil), "opencensus.proto.agent.trace.v1.CurrentLibraryConfig")
+	proto.RegisterType((*UpdatedLibraryConfig)(nil), "opencensus.proto.agent.trace.v1.UpdatedLibraryConfig")
+	proto.RegisterType((*ExportTraceServiceRequest)(nil), "opencensus.proto.agent.trace.v1.ExportTraceServiceRequest")
+	proto.RegisterType((*ExportTraceServiceResponse)(nil), "opencensus.proto.agent.trace.v1.ExportTraceServiceResponse")
+}
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ context.Context
+var _ grpc.ClientConn
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the grpc package it is being compiled against.
+const _ = grpc.SupportPackageIsVersion4
+
+// TraceServiceClient is the client API for TraceService service.
+//
+// For semantics around ctx use and closing/ending streaming RPCs, please refer to https://godoc.org/google.golang.org/grpc#ClientConn.NewStream.
+type TraceServiceClient interface {
+	// After initialization, this RPC must be kept alive for the entire life of
+	// the application. The agent pushes configs down to applications via a
+	// stream.
+	Config(ctx context.Context, opts ...grpc.CallOption) (TraceService_ConfigClient, error)
+	// For performance reasons, it is recommended to keep this RPC
+	// alive for the entire life of the application.
+	Export(ctx context.Context, opts ...grpc.CallOption) (TraceService_ExportClient, error)
+}
+
+type traceServiceClient struct {
+	cc *grpc.ClientConn
+}
+
+func NewTraceServiceClient(cc *grpc.ClientConn) TraceServiceClient {
+	return &traceServiceClient{cc}
+}
+
+func (c *traceServiceClient) Config(ctx context.Context, opts ...grpc.CallOption) (TraceService_ConfigClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_TraceService_serviceDesc.Streams[0], "/opencensus.proto.agent.trace.v1.TraceService/Config", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &traceServiceConfigClient{stream}
+	return x, nil
+}
+
+type TraceService_ConfigClient interface {
+	Send(*CurrentLibraryConfig) error
+	Recv() (*UpdatedLibraryConfig, error)
+	grpc.ClientStream
+}
+
+type traceServiceConfigClient struct {
+	grpc.ClientStream
+}
+
+func (x *traceServiceConfigClient) Send(m *CurrentLibraryConfig) error {
+	return x.ClientStream.SendMsg(m)
+}
+
+func (x *traceServiceConfigClient) Recv() (*UpdatedLibraryConfig, error) {
+	m := new(UpdatedLibraryConfig)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+func (c *traceServiceClient) Export(ctx context.Context, opts ...grpc.CallOption) (TraceService_ExportClient, error) {
+	stream, err := c.cc.NewStream(ctx, &_TraceService_serviceDesc.Streams[1], "/opencensus.proto.agent.trace.v1.TraceService/Export", opts...)
+	if err != nil {
+		return nil, err
+	}
+	x := &traceServiceExportClient{stream}
+	return x, nil
+}
+
+type TraceService_ExportClient interface {
+	Send(*ExportTraceServiceRequest) error
+	Recv() (*ExportTraceServiceResponse, error)
+	grpc.ClientStream
+}
+
+type traceServiceExportClient struct {
+	grpc.ClientStream
+}
+
+func (x *traceServiceExportClient) Send(m *ExportTraceServiceRequest) error {
+	return x.ClientStream.SendMsg(m)
+}
+
+func (x *traceServiceExportClient) Recv() (*ExportTraceServiceResponse, error) {
+	m := new(ExportTraceServiceResponse)
+	if err := x.ClientStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+// TraceServiceServer is the server API for TraceService service.
+type TraceServiceServer interface {
+	// After initialization, this RPC must be kept alive for the entire life of
+	// the application. The agent pushes configs down to applications via a
+	// stream.
+	Config(TraceService_ConfigServer) error
+	// For performance reasons, it is recommended to keep this RPC
+	// alive for the entire life of the application.
+	Export(TraceService_ExportServer) error
+}
+
+func RegisterTraceServiceServer(s *grpc.Server, srv TraceServiceServer) {
+	s.RegisterService(&_TraceService_serviceDesc, srv)
+}
+
+func _TraceService_Config_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(TraceServiceServer).Config(&traceServiceConfigServer{stream})
+}
+
+type TraceService_ConfigServer interface {
+	Send(*UpdatedLibraryConfig) error
+	Recv() (*CurrentLibraryConfig, error)
+	grpc.ServerStream
+}
+
+type traceServiceConfigServer struct {
+	grpc.ServerStream
+}
+
+func (x *traceServiceConfigServer) Send(m *UpdatedLibraryConfig) error {
+	return x.ServerStream.SendMsg(m)
+}
+
+func (x *traceServiceConfigServer) Recv() (*CurrentLibraryConfig, error) {
+	m := new(CurrentLibraryConfig)
+	if err := x.ServerStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+func _TraceService_Export_Handler(srv interface{}, stream grpc.ServerStream) error {
+	return srv.(TraceServiceServer).Export(&traceServiceExportServer{stream})
+}
+
+type TraceService_ExportServer interface {
+	Send(*ExportTraceServiceResponse) error
+	Recv() (*ExportTraceServiceRequest, error)
+	grpc.ServerStream
+}
+
+type traceServiceExportServer struct {
+	grpc.ServerStream
+}
+
+func (x *traceServiceExportServer) Send(m *ExportTraceServiceResponse) error {
+	return x.ServerStream.SendMsg(m)
+}
+
+func (x *traceServiceExportServer) Recv() (*ExportTraceServiceRequest, error) {
+	m := new(ExportTraceServiceRequest)
+	if err := x.ServerStream.RecvMsg(m); err != nil {
+		return nil, err
+	}
+	return m, nil
+}
+
+var _TraceService_serviceDesc = grpc.ServiceDesc{
+	ServiceName: "opencensus.proto.agent.trace.v1.TraceService",
+	HandlerType: (*TraceServiceServer)(nil),
+	Methods:     []grpc.MethodDesc{},
+	Streams: []grpc.StreamDesc{
+		{
+			StreamName:    "Config",
+			Handler:       _TraceService_Config_Handler,
+			ServerStreams: true,
+			ClientStreams: true,
+		},
+		{
+			StreamName:    "Export",
+			Handler:       _TraceService_Export_Handler,
+			ServerStreams: true,
+			ClientStreams: true,
+		},
+	},
+	Metadata: "opencensus/proto/agent/trace/v1/trace_service.proto",
+}
+
+func init() {
+	proto.RegisterFile("opencensus/proto/agent/trace/v1/trace_service.proto", fileDescriptor_trace_service_14d467877eaed17f)
+}
+
+var fileDescriptor_trace_service_14d467877eaed17f = []byte{
+	// 423 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xcc, 0x54, 0xbf, 0x6b, 0xdb, 0x40,
+	0x14, 0xee, 0xd9, 0xad, 0x28, 0xe7, 0x2e, 0x15, 0x1d, 0x54, 0x51, 0xb0, 0x11, 0xb4, 0x18, 0x5a,
+	0x9d, 0x2a, 0x1b, 0x2f, 0x2e, 0x74, 0xb0, 0x29, 0x74, 0x28, 0xc5, 0xc8, 0xed, 0x92, 0xc5, 0xc8,
+	0xd2, 0x8b, 0xa2, 0xc1, 0x77, 0xca, 0xdd, 0x49, 0x24, 0x90, 0x2d, 0x43, 0xf6, 0x0c, 0xf9, 0xc3,
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+	0x04, 0x8a, 0x63, 0xfe, 0xc4, 0x86, 0x3e, 0xc4, 0x6a, 0xd5, 0xb1, 0xd7, 0x37, 0x46, 0xfe, 0x95,
+	0x85, 0x3e, 0x33, 0xa8, 0x58, 0xca, 0xd4, 0xff, 0x2c, 0x0e, 0x25, 0xc4, 0x2f, 0xc7, 0xd4, 0x2d,
+	0xc2, 0x1f, 0x7f, 0x9d, 0x65, 0x8c, 0x4b, 0xd5, 0x9d, 0xeb, 0x60, 0x04, 0x70, 0x9a, 0x83, 0x90,
+	0xcf, 0x72, 0x36, 0xc2, 0x6f, 0x44, 0x16, 0x52, 0x61, 0xb5, 0x7a, 0xed, 0x7e, 0x67, 0xd0, 0x7d,
+	0xc4, 0xd8, 0x3c, 0x0b, 0x69, 0xa0, 0xd1, 0xe6, 0x04, 0xbf, 0x5d, 0x27, 0xc4, 0x6a, 0xd7, 0x1d,
+	0xbb, 0xc9, 0x50, 0xe1, 0x93, 0xa0, 0xaa, 0x83, 0x0d, 0xcf, 0xf9, 0x84, 0xed, 0x43, 0x33, 0x89,
+	0x8c, 0x51, 0x01, 0x83, 0x9b, 0x16, 0x7e, 0xb7, 0xdb, 0x30, 0x2f, 0xb0, 0x51, 0x6d, 0x62, 0x44,
+	0x1a, 0x9e, 0x02, 0x39, 0x94, 0x2a, 0xbb, 0x99, 0x76, 0x68, 0xef, 0xce, 0xab, 0x3e, 0xfa, 0x8e,
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+	0x0a, 0xc9, 0xf3, 0x15, 0x50, 0x19, 0xca, 0x94, 0x51, 0x6f, 0xab, 0xeb, 0xea, 0x17, 0x9c, 0x00,
+	0x75, 0x93, 0x87, 0x7f, 0xa8, 0xa5, 0xa1, 0x9a, 0xc3, 0xbb, 0x00, 0x00, 0x00, 0xff, 0xff, 0xcf,
+	0x9c, 0x9b, 0xf7, 0xcb, 0x04, 0x00, 0x00,
+}

vendor/github.com/census-instrumentation/opencensus-proto/gen-go/agent/trace/v1/trace_service.pb.gw.go

@@ -0,0 +1,159 @@
+// Code generated by protoc-gen-grpc-gateway. DO NOT EDIT.
+// source: opencensus/proto/agent/trace/v1/trace_service.proto
+
+/*
+Package v1 is a reverse proxy.
+
+It translates gRPC into RESTful JSON APIs.
+*/
+package v1
+
+import (
+	"io"
+	"net/http"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/grpc-ecosystem/grpc-gateway/runtime"
+	"github.com/grpc-ecosystem/grpc-gateway/utilities"
+	"golang.org/x/net/context"
+	"google.golang.org/grpc"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/status"
+)
+
+var _ codes.Code
+var _ io.Reader
+var _ status.Status
+var _ = runtime.String
+var _ = utilities.NewDoubleArray
+
+func request_TraceService_Export_0(ctx context.Context, marshaler runtime.Marshaler, client TraceServiceClient, req *http.Request, pathParams map[string]string) (TraceService_ExportClient, runtime.ServerMetadata, error) {
+	var metadata runtime.ServerMetadata
+	stream, err := client.Export(ctx)
+	if err != nil {
+		grpclog.Infof("Failed to start streaming: %v", err)
+		return nil, metadata, err
+	}
+	dec := marshaler.NewDecoder(req.Body)
+	handleSend := func() error {
+		var protoReq ExportTraceServiceRequest
+		err := dec.Decode(&protoReq)
+		if err == io.EOF {
+			return err
+		}
+		if err != nil {
+			grpclog.Infof("Failed to decode request: %v", err)
+			return err
+		}
+		if err := stream.Send(&protoReq); err != nil {
+			grpclog.Infof("Failed to send request: %v", err)
+			return err
+		}
+		return nil
+	}
+	if err := handleSend(); err != nil {
+		if cerr := stream.CloseSend(); cerr != nil {
+			grpclog.Infof("Failed to terminate client stream: %v", cerr)
+		}
+		if err == io.EOF {
+			return stream, metadata, nil
+		}
+		return nil, metadata, err
+	}
+	go func() {
+		for {
+			if err := handleSend(); err != nil {
+				break
+			}
+		}
+		if err := stream.CloseSend(); err != nil {
+			grpclog.Infof("Failed to terminate client stream: %v", err)
+		}
+	}()
+	header, err := stream.Header()
+	if err != nil {
+		grpclog.Infof("Failed to get header from client: %v", err)
+		return nil, metadata, err
+	}
+	metadata.HeaderMD = header
+	return stream, metadata, nil
+}
+
+// RegisterTraceServiceHandlerFromEndpoint is same as RegisterTraceServiceHandler but
+// automatically dials to "endpoint" and closes the connection when "ctx" gets done.
+func RegisterTraceServiceHandlerFromEndpoint(ctx context.Context, mux *runtime.ServeMux, endpoint string, opts []grpc.DialOption) (err error) {
+	conn, err := grpc.Dial(endpoint, opts...)
+	if err != nil {
+		return err
+	}
+	defer func() {
+		if err != nil {
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+			return
+		}
+		go func() {
+			<-ctx.Done()
+			if cerr := conn.Close(); cerr != nil {
+				grpclog.Infof("Failed to close conn to %s: %v", endpoint, cerr)
+			}
+		}()
+	}()
+
+	return RegisterTraceServiceHandler(ctx, mux, conn)
+}
+
+// RegisterTraceServiceHandler registers the http handlers for service TraceService to "mux".
+// The handlers forward requests to the grpc endpoint over "conn".
+func RegisterTraceServiceHandler(ctx context.Context, mux *runtime.ServeMux, conn *grpc.ClientConn) error {
+	return RegisterTraceServiceHandlerClient(ctx, mux, NewTraceServiceClient(conn))
+}
+
+// RegisterTraceServiceHandlerClient registers the http handlers for service TraceService
+// to "mux". The handlers forward requests to the grpc endpoint over the given implementation of "TraceServiceClient".
+// Note: the gRPC framework executes interceptors within the gRPC handler. If the passed in "TraceServiceClient"
+// doesn't go through the normal gRPC flow (creating a gRPC client etc.) then it will be up to the passed in
+// "TraceServiceClient" to call the correct interceptors.
+func RegisterTraceServiceHandlerClient(ctx context.Context, mux *runtime.ServeMux, client TraceServiceClient) error {
+
+	mux.Handle("POST", pattern_TraceService_Export_0, func(w http.ResponseWriter, req *http.Request, pathParams map[string]string) {
+		ctx, cancel := context.WithCancel(req.Context())
+		defer cancel()
+		if cn, ok := w.(http.CloseNotifier); ok {
+			go func(done <-chan struct{}, closed <-chan bool) {
+				select {
+				case <-done:
+				case <-closed:
+					cancel()
+				}
+			}(ctx.Done(), cn.CloseNotify())
+		}
+		inboundMarshaler, outboundMarshaler := runtime.MarshalerForRequest(mux, req)
+		rctx, err := runtime.AnnotateContext(ctx, mux, req)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+		resp, md, err := request_TraceService_Export_0(rctx, inboundMarshaler, client, req, pathParams)
+		ctx = runtime.NewServerMetadataContext(ctx, md)
+		if err != nil {
+			runtime.HTTPError(ctx, mux, outboundMarshaler, w, req, err)
+			return
+		}
+
+		forward_TraceService_Export_0(ctx, mux, outboundMarshaler, w, req, func() (proto.Message, error) { return resp.Recv() }, mux.GetForwardResponseOptions()...)
+
+	})
+
+	return nil
+}
+
+var (
+	pattern_TraceService_Export_0 = runtime.MustPattern(runtime.NewPattern(1, []int{2, 0, 2, 1}, []string{"v1", "trace"}, ""))
+)
+
+var (
+	forward_TraceService_Export_0 = runtime.ForwardResponseStream
+)

vendor/github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1/resource.pb.go

@@ -0,0 +1,96 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: opencensus/proto/resource/v1/resource.proto
+
+package v1 // import "github.com/census-instrumentation/opencensus-proto/gen-go/resource/v1"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// Resource information.
+type Resource struct {
+	// Type identifier for the resource.
+	Type string `protobuf:"bytes,1,opt,name=type,proto3" json:"type,omitempty"`
+	// Set of labels that describe the resource.
+	Labels               map[string]string `protobuf:"bytes,2,rep,name=labels,proto3" json:"labels,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
+	XXX_unrecognized     []byte            `json:"-"`
+	XXX_sizecache        int32             `json:"-"`
+}
+
+func (m *Resource) Reset()         { *m = Resource{} }
+func (m *Resource) String() string { return proto.CompactTextString(m) }
+func (*Resource) ProtoMessage()    {}
+func (*Resource) Descriptor() ([]byte, []int) {
+	return fileDescriptor_resource_471b1e1cf1b04db0, []int{0}
+}
+func (m *Resource) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Resource.Unmarshal(m, b)
+}
+func (m *Resource) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Resource.Marshal(b, m, deterministic)
+}
+func (dst *Resource) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Resource.Merge(dst, src)
+}
+func (m *Resource) XXX_Size() int {
+	return xxx_messageInfo_Resource.Size(m)
+}
+func (m *Resource) XXX_DiscardUnknown() {
+	xxx_messageInfo_Resource.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Resource proto.InternalMessageInfo
+
+func (m *Resource) GetType() string {
+	if m != nil {
+		return m.Type
+	}
+	return ""
+}
+
+func (m *Resource) GetLabels() map[string]string {
+	if m != nil {
+		return m.Labels
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Resource)(nil), "opencensus.proto.resource.v1.Resource")
+	proto.RegisterMapType((map[string]string)(nil), "opencensus.proto.resource.v1.Resource.LabelsEntry")
+}
+
+func init() {
+	proto.RegisterFile("opencensus/proto/resource/v1/resource.proto", fileDescriptor_resource_471b1e1cf1b04db0)
+}
+
+var fileDescriptor_resource_471b1e1cf1b04db0 = []byte{
+	// 234 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0xd2, 0xce, 0x2f, 0x48, 0xcd,
+	0x4b, 0x4e, 0xcd, 0x2b, 0x2e, 0x2d, 0xd6, 0x2f, 0x28, 0xca, 0x2f, 0xc9, 0xd7, 0x2f, 0x4a, 0x2d,
+	0xce, 0x2f, 0x2d, 0x4a, 0x4e, 0xd5, 0x2f, 0x33, 0x84, 0xb3, 0xf5, 0xc0, 0x52, 0x42, 0x32, 0x08,
+	0xc5, 0x10, 0x11, 0x3d, 0xb8, 0x82, 0x32, 0x43, 0xa5, 0xa5, 0x8c, 0x5c, 0x1c, 0x41, 0x50, 0xbe,
+	0x90, 0x10, 0x17, 0x4b, 0x49, 0x65, 0x41, 0xaa, 0x04, 0xa3, 0x02, 0xa3, 0x06, 0x67, 0x10, 0x98,
+	0x2d, 0xe4, 0xc5, 0xc5, 0x96, 0x93, 0x98, 0x94, 0x9a, 0x53, 0x2c, 0xc1, 0xa4, 0xc0, 0xac, 0xc1,
+	0x6d, 0x64, 0xa4, 0x87, 0xcf, 0x3c, 0x3d, 0x98, 0x59, 0x7a, 0x3e, 0x60, 0x4d, 0xae, 0x79, 0x25,
+	0x45, 0x95, 0x41, 0x50, 0x13, 0xa4, 0x2c, 0xb9, 0xb8, 0x91, 0x84, 0x85, 0x04, 0xb8, 0x98, 0xb3,
+	0x53, 0x2b, 0xa1, 0xb6, 0x81, 0x98, 0x42, 0x22, 0x5c, 0xac, 0x65, 0x89, 0x39, 0xa5, 0xa9, 0x12,
+	0x4c, 0x60, 0x31, 0x08, 0xc7, 0x8a, 0xc9, 0x82, 0xd1, 0xa9, 0x92, 0x4b, 0x3e, 0x33, 0x1f, 0xaf,
+	0xd5, 0x4e, 0xbc, 0x30, 0xbb, 0x03, 0x40, 0x52, 0x01, 0x8c, 0x51, 0xae, 0xe9, 0x99, 0x25, 0x19,
+	0xa5, 0x49, 0x7a, 0xc9, 0xf9, 0xb9, 0xfa, 0x10, 0x5d, 0xba, 0x99, 0x79, 0xc5, 0x25, 0x45, 0xa5,
+	0xb9, 0xa9, 0x79, 0x25, 0x89, 0x25, 0x99, 0xf9, 0x79, 0xfa, 0x08, 0x03, 0x75, 0x21, 0x01, 0x99,
+	0x9e, 0x9a, 0xa7, 0x9b, 0x8e, 0x12, 0x9e, 0x49, 0x6c, 0x60, 0x19, 0x63, 0x40, 0x00, 0x00, 0x00,
+	0xff, 0xff, 0x8e, 0x11, 0xaf, 0xda, 0x76, 0x01, 0x00, 0x00,
+}

vendor/github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1/trace_config.pb.go

@@ -0,0 +1,400 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: opencensus/proto/trace/v1/trace_config.proto
+
+package v1 // import "github.com/census-instrumentation/opencensus-proto/gen-go/trace/v1"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// Global configuration of the trace service.
+type TraceConfig struct {
+	// The global default sampler used to make decisions on span sampling.
+	//
+	// Types that are valid to be assigned to Sampler:
+	//	*TraceConfig_ProbabilitySampler
+	//	*TraceConfig_ConstantSampler
+	//	*TraceConfig_RateLimitingSampler
+	Sampler isTraceConfig_Sampler `protobuf_oneof:"sampler"`
+	// The global default max number of attributes per span.
+	MaxNumberOfAttributes int64 `protobuf:"varint,4,opt,name=max_number_of_attributes,json=maxNumberOfAttributes,proto3" json:"max_number_of_attributes,omitempty"`
+	// The global default max number of annotation events per span.
+	MaxNumberOfAnnotations int64 `protobuf:"varint,5,opt,name=max_number_of_annotations,json=maxNumberOfAnnotations,proto3" json:"max_number_of_annotations,omitempty"`
+	// The global default max number of message events per span.
+	MaxNumberOfMessageEvents int64 `protobuf:"varint,6,opt,name=max_number_of_message_events,json=maxNumberOfMessageEvents,proto3" json:"max_number_of_message_events,omitempty"`
+	// The global default max number of link entries per span.
+	MaxNumberOfLinks     int64    `protobuf:"varint,7,opt,name=max_number_of_links,json=maxNumberOfLinks,proto3" json:"max_number_of_links,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *TraceConfig) Reset()         { *m = TraceConfig{} }
+func (m *TraceConfig) String() string { return proto.CompactTextString(m) }
+func (*TraceConfig) ProtoMessage()    {}
+func (*TraceConfig) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_config_2f6d4a0dc67515b2, []int{0}
+}
+func (m *TraceConfig) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_TraceConfig.Unmarshal(m, b)
+}
+func (m *TraceConfig) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_TraceConfig.Marshal(b, m, deterministic)
+}
+func (dst *TraceConfig) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_TraceConfig.Merge(dst, src)
+}
+func (m *TraceConfig) XXX_Size() int {
+	return xxx_messageInfo_TraceConfig.Size(m)
+}
+func (m *TraceConfig) XXX_DiscardUnknown() {
+	xxx_messageInfo_TraceConfig.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_TraceConfig proto.InternalMessageInfo
+
+type isTraceConfig_Sampler interface {
+	isTraceConfig_Sampler()
+}
+
+type TraceConfig_ProbabilitySampler struct {
+	ProbabilitySampler *ProbabilitySampler `protobuf:"bytes,1,opt,name=probability_sampler,json=probabilitySampler,proto3,oneof"`
+}
+
+type TraceConfig_ConstantSampler struct {
+	ConstantSampler *ConstantSampler `protobuf:"bytes,2,opt,name=constant_sampler,json=constantSampler,proto3,oneof"`
+}
+
+type TraceConfig_RateLimitingSampler struct {
+	RateLimitingSampler *RateLimitingSampler `protobuf:"bytes,3,opt,name=rate_limiting_sampler,json=rateLimitingSampler,proto3,oneof"`
+}
+
+func (*TraceConfig_ProbabilitySampler) isTraceConfig_Sampler() {}
+
+func (*TraceConfig_ConstantSampler) isTraceConfig_Sampler() {}
+
+func (*TraceConfig_RateLimitingSampler) isTraceConfig_Sampler() {}
+
+func (m *TraceConfig) GetSampler() isTraceConfig_Sampler {
+	if m != nil {
+		return m.Sampler
+	}
+	return nil
+}
+
+func (m *TraceConfig) GetProbabilitySampler() *ProbabilitySampler {
+	if x, ok := m.GetSampler().(*TraceConfig_ProbabilitySampler); ok {
+		return x.ProbabilitySampler
+	}
+	return nil
+}
+
+func (m *TraceConfig) GetConstantSampler() *ConstantSampler {
+	if x, ok := m.GetSampler().(*TraceConfig_ConstantSampler); ok {
+		return x.ConstantSampler
+	}
+	return nil
+}
+
+func (m *TraceConfig) GetRateLimitingSampler() *RateLimitingSampler {
+	if x, ok := m.GetSampler().(*TraceConfig_RateLimitingSampler); ok {
+		return x.RateLimitingSampler
+	}
+	return nil
+}
+
+func (m *TraceConfig) GetMaxNumberOfAttributes() int64 {
+	if m != nil {
+		return m.MaxNumberOfAttributes
+	}
+	return 0
+}
+
+func (m *TraceConfig) GetMaxNumberOfAnnotations() int64 {
+	if m != nil {
+		return m.MaxNumberOfAnnotations
+	}
+	return 0
+}
+
+func (m *TraceConfig) GetMaxNumberOfMessageEvents() int64 {
+	if m != nil {
+		return m.MaxNumberOfMessageEvents
+	}
+	return 0
+}
+
+func (m *TraceConfig) GetMaxNumberOfLinks() int64 {
+	if m != nil {
+		return m.MaxNumberOfLinks
+	}
+	return 0
+}
+
+// XXX_OneofFuncs is for the internal use of the proto package.
+func (*TraceConfig) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
+	return _TraceConfig_OneofMarshaler, _TraceConfig_OneofUnmarshaler, _TraceConfig_OneofSizer, []interface{}{
+		(*TraceConfig_ProbabilitySampler)(nil),
+		(*TraceConfig_ConstantSampler)(nil),
+		(*TraceConfig_RateLimitingSampler)(nil),
+	}
+}
+
+func _TraceConfig_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
+	m := msg.(*TraceConfig)
+	// sampler
+	switch x := m.Sampler.(type) {
+	case *TraceConfig_ProbabilitySampler:
+		b.EncodeVarint(1<<3 | proto.WireBytes)
+		if err := b.EncodeMessage(x.ProbabilitySampler); err != nil {
+			return err
+		}
+	case *TraceConfig_ConstantSampler:
+		b.EncodeVarint(2<<3 | proto.WireBytes)
+		if err := b.EncodeMessage(x.ConstantSampler); err != nil {
+			return err
+		}
+	case *TraceConfig_RateLimitingSampler:
+		b.EncodeVarint(3<<3 | proto.WireBytes)
+		if err := b.EncodeMessage(x.RateLimitingSampler); err != nil {
+			return err
+		}
+	case nil:
+	default:
+		return fmt.Errorf("TraceConfig.Sampler has unexpected type %T", x)
+	}
+	return nil
+}
+
+func _TraceConfig_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
+	m := msg.(*TraceConfig)
+	switch tag {
+	case 1: // sampler.probability_sampler
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		msg := new(ProbabilitySampler)
+		err := b.DecodeMessage(msg)
+		m.Sampler = &TraceConfig_ProbabilitySampler{msg}
+		return true, err
+	case 2: // sampler.constant_sampler
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		msg := new(ConstantSampler)
+		err := b.DecodeMessage(msg)
+		m.Sampler = &TraceConfig_ConstantSampler{msg}
+		return true, err
+	case 3: // sampler.rate_limiting_sampler
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		msg := new(RateLimitingSampler)
+		err := b.DecodeMessage(msg)
+		m.Sampler = &TraceConfig_RateLimitingSampler{msg}
+		return true, err
+	default:
+		return false, nil
+	}
+}
+
+func _TraceConfig_OneofSizer(msg proto.Message) (n int) {
+	m := msg.(*TraceConfig)
+	// sampler
+	switch x := m.Sampler.(type) {
+	case *TraceConfig_ProbabilitySampler:
+		s := proto.Size(x.ProbabilitySampler)
+		n += 1 // tag and wire
+		n += proto.SizeVarint(uint64(s))
+		n += s
+	case *TraceConfig_ConstantSampler:
+		s := proto.Size(x.ConstantSampler)
+		n += 1 // tag and wire
+		n += proto.SizeVarint(uint64(s))
+		n += s
+	case *TraceConfig_RateLimitingSampler:
+		s := proto.Size(x.RateLimitingSampler)
+		n += 1 // tag and wire
+		n += proto.SizeVarint(uint64(s))
+		n += s
+	case nil:
+	default:
+		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
+	}
+	return n
+}
+
+// Sampler that tries to uniformly sample traces with a given probability.
+// The probability of sampling a trace is equal to that of the specified probability.
+type ProbabilitySampler struct {
+	// The desired probability of sampling. Must be within [0.0, 1.0].
+	SamplingProbability  float64  `protobuf:"fixed64,1,opt,name=samplingProbability,proto3" json:"samplingProbability,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ProbabilitySampler) Reset()         { *m = ProbabilitySampler{} }
+func (m *ProbabilitySampler) String() string { return proto.CompactTextString(m) }
+func (*ProbabilitySampler) ProtoMessage()    {}
+func (*ProbabilitySampler) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_config_2f6d4a0dc67515b2, []int{1}
+}
+func (m *ProbabilitySampler) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ProbabilitySampler.Unmarshal(m, b)
+}
+func (m *ProbabilitySampler) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ProbabilitySampler.Marshal(b, m, deterministic)
+}
+func (dst *ProbabilitySampler) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ProbabilitySampler.Merge(dst, src)
+}
+func (m *ProbabilitySampler) XXX_Size() int {
+	return xxx_messageInfo_ProbabilitySampler.Size(m)
+}
+func (m *ProbabilitySampler) XXX_DiscardUnknown() {
+	xxx_messageInfo_ProbabilitySampler.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ProbabilitySampler proto.InternalMessageInfo
+
+func (m *ProbabilitySampler) GetSamplingProbability() float64 {
+	if m != nil {
+		return m.SamplingProbability
+	}
+	return 0
+}
+
+// Sampler that makes a constant decision (either always "yes" or always "no")
+// on span sampling.
+type ConstantSampler struct {
+	// Whether spans should be always sampled, or never sampled.
+	Decision             bool     `protobuf:"varint,1,opt,name=decision,proto3" json:"decision,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ConstantSampler) Reset()         { *m = ConstantSampler{} }
+func (m *ConstantSampler) String() string { return proto.CompactTextString(m) }
+func (*ConstantSampler) ProtoMessage()    {}
+func (*ConstantSampler) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_config_2f6d4a0dc67515b2, []int{2}
+}
+func (m *ConstantSampler) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ConstantSampler.Unmarshal(m, b)
+}
+func (m *ConstantSampler) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ConstantSampler.Marshal(b, m, deterministic)
+}
+func (dst *ConstantSampler) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ConstantSampler.Merge(dst, src)
+}
+func (m *ConstantSampler) XXX_Size() int {
+	return xxx_messageInfo_ConstantSampler.Size(m)
+}
+func (m *ConstantSampler) XXX_DiscardUnknown() {
+	xxx_messageInfo_ConstantSampler.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ConstantSampler proto.InternalMessageInfo
+
+func (m *ConstantSampler) GetDecision() bool {
+	if m != nil {
+		return m.Decision
+	}
+	return false
+}
+
+// Sampler that tries to sample with a rate per time window.
+type RateLimitingSampler struct {
+	// Rate per second.
+	Qps                  int64    `protobuf:"varint,1,opt,name=qps,proto3" json:"qps,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *RateLimitingSampler) Reset()         { *m = RateLimitingSampler{} }
+func (m *RateLimitingSampler) String() string { return proto.CompactTextString(m) }
+func (*RateLimitingSampler) ProtoMessage()    {}
+func (*RateLimitingSampler) Descriptor() ([]byte, []int) {
+	return fileDescriptor_trace_config_2f6d4a0dc67515b2, []int{3}
+}
+func (m *RateLimitingSampler) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_RateLimitingSampler.Unmarshal(m, b)
+}
+func (m *RateLimitingSampler) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_RateLimitingSampler.Marshal(b, m, deterministic)
+}
+func (dst *RateLimitingSampler) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_RateLimitingSampler.Merge(dst, src)
+}
+func (m *RateLimitingSampler) XXX_Size() int {
+	return xxx_messageInfo_RateLimitingSampler.Size(m)
+}
+func (m *RateLimitingSampler) XXX_DiscardUnknown() {
+	xxx_messageInfo_RateLimitingSampler.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_RateLimitingSampler proto.InternalMessageInfo
+
+func (m *RateLimitingSampler) GetQps() int64 {
+	if m != nil {
+		return m.Qps
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*TraceConfig)(nil), "opencensus.proto.trace.v1.TraceConfig")
+	proto.RegisterType((*ProbabilitySampler)(nil), "opencensus.proto.trace.v1.ProbabilitySampler")
+	proto.RegisterType((*ConstantSampler)(nil), "opencensus.proto.trace.v1.ConstantSampler")
+	proto.RegisterType((*RateLimitingSampler)(nil), "opencensus.proto.trace.v1.RateLimitingSampler")
+}
+
+func init() {
+	proto.RegisterFile("opencensus/proto/trace/v1/trace_config.proto", fileDescriptor_trace_config_2f6d4a0dc67515b2)
+}
+
+var fileDescriptor_trace_config_2f6d4a0dc67515b2 = []byte{
+	// 431 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x7c, 0x93, 0x41, 0x6f, 0xd4, 0x30,
+	0x10, 0x85, 0x09, 0x5b, 0xda, 0x32, 0x3d, 0x74, 0xe5, 0xa8, 0x28, 0x45, 0x3d, 0x54, 0x7b, 0xa1,
+	0x42, 0x24, 0xa1, 0x70, 0x40, 0x5c, 0x90, 0xd8, 0x0a, 0xc4, 0xa1, 0xc0, 0x2a, 0x20, 0x21, 0x71,
+	0x09, 0x4e, 0xea, 0x0d, 0x16, 0xf1, 0x38, 0xd8, 0x93, 0xa8, 0xfc, 0x17, 0x7e, 0x6c, 0x15, 0x67,
+	0x95, 0x64, 0xbb, 0xed, 0xde, 0xec, 0xf7, 0xde, 0xf7, 0x2c, 0x79, 0x6c, 0x78, 0xa1, 0x2b, 0x81,
+	0xb9, 0x40, 0x5b, 0xdb, 0xb8, 0x32, 0x9a, 0x74, 0x4c, 0x86, 0xe7, 0x22, 0x6e, 0xce, 0xbb, 0x45,
+	0x9a, 0x6b, 0x5c, 0xca, 0x22, 0x72, 0x1e, 0x3b, 0x1e, 0xd2, 0x9d, 0x12, 0xb9, 0x50, 0xd4, 0x9c,
+	0xcf, 0xfe, 0xef, 0xc0, 0xc1, 0xf7, 0x76, 0x73, 0xe1, 0x00, 0xf6, 0x0b, 0xfc, 0xca, 0xe8, 0x8c,
+	0x67, 0xb2, 0x94, 0xf4, 0x2f, 0xb5, 0x5c, 0x55, 0xa5, 0x30, 0x81, 0x77, 0xea, 0x9d, 0x1d, 0xbc,
+	0x0a, 0xa3, 0x7b, 0x8b, 0xa2, 0xc5, 0x40, 0x7d, 0xeb, 0xa0, 0x4f, 0x0f, 0x12, 0x56, 0x6d, 0xa8,
+	0xec, 0x07, 0x4c, 0x73, 0x8d, 0x96, 0x38, 0x52, 0x5f, 0xff, 0xd0, 0xd5, 0x3f, 0xdf, 0x52, 0x7f,
+	0xb1, 0x42, 0x86, 0xee, 0xc3, 0x7c, 0x5d, 0x62, 0x57, 0x70, 0x64, 0x38, 0x89, 0xb4, 0x94, 0x4a,
+	0x92, 0xc4, 0xa2, 0x6f, 0x9f, 0xb8, 0xf6, 0x68, 0x4b, 0x7b, 0xc2, 0x49, 0x5c, 0xae, 0xb0, 0xe1,
+	0x04, 0xdf, 0x6c, 0xca, 0xec, 0x0d, 0x04, 0x8a, 0x5f, 0xa7, 0x58, 0xab, 0x4c, 0x98, 0x54, 0x2f,
+	0x53, 0x4e, 0x64, 0x64, 0x56, 0x93, 0xb0, 0xc1, 0xce, 0xa9, 0x77, 0x36, 0x49, 0x8e, 0x14, 0xbf,
+	0xfe, 0xe2, 0xec, 0xaf, 0xcb, 0xf7, 0xbd, 0xc9, 0xde, 0xc2, 0xf1, 0x2d, 0x10, 0x51, 0x13, 0x27,
+	0xa9, 0xd1, 0x06, 0x8f, 0x1c, 0xf9, 0x64, 0x4c, 0x0e, 0x2e, 0x7b, 0x07, 0x27, 0xeb, 0xa8, 0x12,
+	0xd6, 0xf2, 0x42, 0xa4, 0xa2, 0x11, 0x48, 0x36, 0xd8, 0x75, 0x74, 0x30, 0xa2, 0x3f, 0x77, 0x81,
+	0x0f, 0xce, 0x67, 0x21, 0xf8, 0xeb, 0x7c, 0x29, 0xf1, 0x8f, 0x0d, 0xf6, 0x1c, 0x36, 0x1d, 0x61,
+	0x97, 0xad, 0x3e, 0x7f, 0x0c, 0x7b, 0xab, 0xab, 0x9b, 0x7d, 0x04, 0xb6, 0x39, 0x58, 0xf6, 0x12,
+	0x7c, 0x17, 0x90, 0x58, 0x8c, 0x5c, 0xf7, 0x48, 0xbc, 0xe4, 0x2e, 0x6b, 0x16, 0xc2, 0xe1, 0xad,
+	0x09, 0xb2, 0xa7, 0xb0, 0x7f, 0x25, 0x72, 0x69, 0xa5, 0x46, 0x47, 0xee, 0x27, 0xfd, 0x7e, 0xf6,
+	0x0c, 0xfc, 0x3b, 0x46, 0xc2, 0xa6, 0x30, 0xf9, 0x5b, 0x59, 0x97, 0x9e, 0x24, 0xed, 0x72, 0xde,
+	0xc0, 0x89, 0xd4, 0xf7, 0x0f, 0x76, 0x3e, 0x1d, 0xbd, 0xed, 0x45, 0x6b, 0x2d, 0xbc, 0x9f, 0xf3,
+	0x42, 0xd2, 0xef, 0x3a, 0x8b, 0x72, 0xad, 0xe2, 0x8e, 0x0a, 0x25, 0x5a, 0x32, 0xb5, 0x12, 0xd8,
+	0xdd, 0x78, 0x3c, 0x14, 0x86, 0xdd, 0xef, 0x2a, 0x04, 0x86, 0xc5, 0xf0, 0xc9, 0xb2, 0x5d, 0x27,
+	0xbf, 0xbe, 0x09, 0x00, 0x00, 0xff, 0xff, 0x1e, 0x98, 0xa1, 0x9e, 0x88, 0x03, 0x00, 0x00,
+}

vendor/github.com/go-ini/ini/.travis.yml

@@ -6,6 +6,7 @@ go:
   - 1.8.x
   - 1.9.x
   - 1.10.x
+  - 1.11.x
 
 script:
   - go get golang.org/x/tools/cmd/cover

vendor/github.com/go-ini/ini/README.md

@@ -20,6 +20,8 @@ Package ini provides INI file read and write functionality in Go.
 
 ## Installation
 
+The minimum requirement of Go is **1.6**.
+
 To use a tagged revision:
 
 ```sh

vendor/github.com/go-ini/ini/file.go

@@ -45,6 +45,9 @@ type File struct {
 
 // newFile initializes File object with given data sources.
 func newFile(dataSources []dataSource, opts LoadOptions) *File {
+	if len(opts.KeyValueDelimiters) == 0 {
+		opts.KeyValueDelimiters = "=:"
+	}
 	return &File{
 		BlockMode:   true,
 		dataSources: dataSources,
@@ -227,7 +230,8 @@ func (f *File) Append(source interface{}, others ...interface{}) error {
 }
 
 func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
-	equalSign := "="
+	equalSign := DefaultFormatLeft + "=" + DefaultFormatRight
+
 	if PrettyFormat || PrettyEqual {
 		equalSign = " = "
 	}
@@ -285,7 +289,7 @@ func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
 			for _, kname := range sec.keyList {
 				keyLength := len(kname)
 				// First case will surround key by ` and second by """
-				if strings.ContainsAny(kname, "\"=:") {
+				if strings.Contains(kname, "\"") || strings.ContainsAny(kname, f.options.KeyValueDelimiters) {
 					keyLength += 2
 				} else if strings.Contains(kname, "`") {
 					keyLength += 6
@@ -310,7 +314,7 @@ func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
 				lines := strings.Split(key.Comment, LineBreak)
 				for i := range lines {
 					if lines[i][0] != '#' && lines[i][0] != ';' {
-						lines[i] = "; " + lines[i]
+						lines[i] = "; " + strings.TrimSpace(lines[i])
 					} else {
 						lines[i] = lines[i][:1] + " " + strings.TrimSpace(lines[i][1:])
 					}
@@ -328,7 +332,7 @@ func (f *File) writeToBuffer(indent string) (*bytes.Buffer, error) {
 			switch {
 			case key.isAutoIncrement:
 				kname = "-"
-			case strings.ContainsAny(kname, "\"=:"):
+			case strings.Contains(kname, "\"") || strings.ContainsAny(kname, f.options.KeyValueDelimiters):
 				kname = "`" + kname + "`"
 			case strings.Contains(kname, "`"):
 				kname = `"""` + kname + `"""`

vendor/github.com/go-ini/ini/ini.go

@@ -34,7 +34,7 @@ const (
 
 	// Maximum allowed depth when recursively substituing variable names.
 	_DEPTH_VALUES = 99
-	_VERSION      = "1.38.2"
+	_VERSION      = "1.41.0"
 )
 
 // Version returns current package version literal.
@@ -48,6 +48,10 @@ var (
 	// at package init time.
 	LineBreak = "\n"
 
+	// Place custom spaces when PrettyFormat and PrettyEqual are both disabled
+	DefaultFormatLeft  = ""
+	DefaultFormatRight = ""
+
 	// Variable regexp pattern: %(variable)s
 	varPattern = regexp.MustCompile(`%\(([^\)]+)\)s`)
 
@@ -164,6 +168,8 @@ type LoadOptions struct {
 	// UnparseableSections stores a list of blocks that are allowed with raw content which do not otherwise
 	// conform to key/value pairs. Specify the names of those blocks here.
 	UnparseableSections []string
+	// KeyValueDelimiters is the sequence of delimiters that are used to separate key and value. By default, it is "=:".
+	KeyValueDelimiters string
 }
 
 func LoadSources(opts LoadOptions, source interface{}, others ...interface{}) (_ *File, err error) {

vendor/github.com/go-ini/ini/key.go

@@ -133,8 +133,7 @@ func (k *Key) transformValue(val string) string {
 		}
 
 		// Take off leading '%(' and trailing ')s'.
-		noption := strings.TrimLeft(vr, "%(")
+		noption := vr[2 : len(vr)-2]
-		noption = strings.TrimRight(noption, ")s")
 
 		// Search in the same section.
 		nk, err := k.s.GetKey(noption)
@@ -187,23 +186,24 @@ func (k *Key) Float64() (float64, error) {
 
 // Int returns int type value.
 func (k *Key) Int() (int, error) {
-	return strconv.Atoi(k.String())
+    v, err := strconv.ParseInt(k.String(), 0, 64)
+    return int(v), err
 }
 
 // Int64 returns int64 type value.
 func (k *Key) Int64() (int64, error) {
-	return strconv.ParseInt(k.String(), 10, 64)
+	return strconv.ParseInt(k.String(), 0, 64)
 }
 
 // Uint returns uint type valued.
 func (k *Key) Uint() (uint, error) {
-	u, e := strconv.ParseUint(k.String(), 10, 64)
+	u, e := strconv.ParseUint(k.String(), 0, 64)
 	return uint(u), e
 }
 
 // Uint64 returns uint64 type value.
 func (k *Key) Uint64() (uint64, error) {
-	return strconv.ParseUint(k.String(), 10, 64)
+	return strconv.ParseUint(k.String(), 0, 64)
 }
 
 // Duration returns time.Duration type value.
@@ -668,7 +668,8 @@ func (k *Key) parseFloat64s(strs []string, addInvalid, returnOnInvalid bool) ([]
 func (k *Key) parseInts(strs []string, addInvalid, returnOnInvalid bool) ([]int, error) {
 	vals := make([]int, 0, len(strs))
 	for _, str := range strs {
-		val, err := strconv.Atoi(str)
+		valInt64, err := strconv.ParseInt(str, 0, 64)
+		val := int(valInt64)        
 		if err != nil && returnOnInvalid {
 			return nil, err
 		}
@@ -683,7 +684,7 @@ func (k *Key) parseInts(strs []string, addInvalid, returnOnInvalid bool) ([]int,
 func (k *Key) parseInt64s(strs []string, addInvalid, returnOnInvalid bool) ([]int64, error) {
 	vals := make([]int64, 0, len(strs))
 	for _, str := range strs {
-		val, err := strconv.ParseInt(str, 10, 64)
+		val, err := strconv.ParseInt(str, 0, 64)
 		if err != nil && returnOnInvalid {
 			return nil, err
 		}
@@ -698,7 +699,7 @@ func (k *Key) parseInt64s(strs []string, addInvalid, returnOnInvalid bool) ([]in
 func (k *Key) parseUints(strs []string, addInvalid, returnOnInvalid bool) ([]uint, error) {
 	vals := make([]uint, 0, len(strs))
 	for _, str := range strs {
-		val, err := strconv.ParseUint(str, 10, 0)
+		val, err := strconv.ParseUint(str, 0, 0)
 		if err != nil && returnOnInvalid {
 			return nil, err
 		}
@@ -713,7 +714,7 @@ func (k *Key) parseUints(strs []string, addInvalid, returnOnInvalid bool) ([]uin
 func (k *Key) parseUint64s(strs []string, addInvalid, returnOnInvalid bool) ([]uint64, error) {
 	vals := make([]uint64, 0, len(strs))
 	for _, str := range strs {
-		val, err := strconv.ParseUint(str, 10, 64)
+		val, err := strconv.ParseUint(str, 0, 64)
 		if err != nil && returnOnInvalid {
 			return nil, err
 		}

vendor/github.com/go-ini/ini/parser.go

@@ -100,7 +100,7 @@ func cleanComment(in []byte) ([]byte, bool) {
 	return in[i:], true
 }
 
-func readKeyName(in []byte) (string, int, error) {
+func readKeyName(delimiters string, in []byte) (string, int, error) {
 	line := string(in)
 
 	// Check if key name surrounded by quotes.
@@ -127,7 +127,7 @@ func readKeyName(in []byte) (string, int, error) {
 		pos += startIdx
 
 		// Find key-value delimiter
-		i := strings.IndexAny(line[pos+startIdx:], "=:")
+		i := strings.IndexAny(line[pos+startIdx:], delimiters)
 		if i < 0 {
 			return "", -1, ErrDelimiterNotFound{line}
 		}
@@ -135,7 +135,7 @@ func readKeyName(in []byte) (string, int, error) {
 		return strings.TrimSpace(line[startIdx:pos]), endIdx + startIdx + 1, nil
 	}
 
-	endIdx = strings.IndexAny(line, "=:")
+	endIdx = strings.IndexAny(line, delimiters)
 	if endIdx < 0 {
 		return "", -1, ErrDelimiterNotFound{line}
 	}
@@ -273,7 +273,6 @@ func (p *parser) readValue(in []byte,
 		parserBufferPeekResult, _ := p.buf.Peek(parserBufferSize)
 		peekBuffer := bytes.NewBuffer(parserBufferPeekResult)
 
-		identSize := -1
 		val := line
 
 		for {
@@ -290,12 +289,11 @@ func (p *parser) readValue(in []byte,
 				return val, nil
 			}
 
-			currentIdentSize := len(peekMatches[1])
 			// NOTE: Return if not a python-ini multi-line value.
-			if currentIdentSize < 0 {
+			currentIdentSize := len(peekMatches[1])
+			if currentIdentSize <= 0 {
 				return val, nil
 			}
-			identSize = currentIdentSize
 
 			// NOTE: Just advance the parser reader (buffer) in-sync with the peek buffer.
 			_, err := p.readUntil('\n')
@@ -305,12 +303,6 @@ func (p *parser) readValue(in []byte,
 
 			val += fmt.Sprintf("\n%s", peekMatches[2])
 		}
-
-		// NOTE: If it was a Python multi-line value,
-		// return the appended value.
-		if identSize > 0 {
-			return val, nil
-		}
 	}
 
 	return line, nil
@@ -428,7 +420,7 @@ func (f *File) parse(reader io.Reader) (err error) {
 			continue
 		}
 
-		kname, offset, err := readKeyName(line)
+		kname, offset, err := readKeyName(f.options.KeyValueDelimiters, line)
 		if err != nil {
 			// Treat as boolean key when desired, and whole line is key name.
 			if IsErrDelimiterNotFound(err) {

vendor/github.com/go-ini/ini/section.go

@@ -238,6 +238,7 @@ func (s *Section) DeleteKey(name string) {
 		if k == name {
 			s.keyList = append(s.keyList[:i], s.keyList[i+1:]...)
 			delete(s.keys, name)
+			delete(s.keysHash, name)
 			return
 		}
 	}

vendor/github.com/go-ini/ini/struct.go

@@ -180,7 +180,7 @@ func setWithProperType(t reflect.Type, key *Key, field reflect.Value, delim stri
 	case reflect.Uint, reflect.Uint16, reflect.Uint32, reflect.Uint64:
 		durationVal, err := key.Duration()
 		// Skip zero value
-		if err == nil && int(durationVal) > 0 {
+		if err == nil && uint64(durationVal) > 0 {
 			field.Set(reflect.ValueOf(durationVal))
 			return nil
 		}

vendor/github.com/golang/protobuf/protoc-gen-go/descriptor/descriptor.proto

@@ -0,0 +1,872 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+//  Based on original Protocol Buffers design by
+//  Sanjay Ghemawat, Jeff Dean, and others.
+//
+// The messages in this file describe the definitions found in .proto files.
+// A valid .proto file can be translated directly to a FileDescriptorProto
+// without any other information (e.g. without reading its imports).
+
+
+syntax = "proto2";
+
+package google.protobuf;
+option go_package = "github.com/golang/protobuf/protoc-gen-go/descriptor;descriptor";
+option java_package = "com.google.protobuf";
+option java_outer_classname = "DescriptorProtos";
+option csharp_namespace = "Google.Protobuf.Reflection";
+option objc_class_prefix = "GPB";
+option cc_enable_arenas = true;
+
+// descriptor.proto must be optimized for speed because reflection-based
+// algorithms don't work during bootstrapping.
+option optimize_for = SPEED;
+
+// The protocol compiler can output a FileDescriptorSet containing the .proto
+// files it parses.
+message FileDescriptorSet {
+  repeated FileDescriptorProto file = 1;
+}
+
+// Describes a complete .proto file.
+message FileDescriptorProto {
+  optional string name = 1;       // file name, relative to root of source tree
+  optional string package = 2;    // e.g. "foo", "foo.bar", etc.
+
+  // Names of files imported by this file.
+  repeated string dependency = 3;
+  // Indexes of the public imported files in the dependency list above.
+  repeated int32 public_dependency = 10;
+  // Indexes of the weak imported files in the dependency list.
+  // For Google-internal migration only. Do not use.
+  repeated int32 weak_dependency = 11;
+
+  // All top-level definitions in this file.
+  repeated DescriptorProto message_type = 4;
+  repeated EnumDescriptorProto enum_type = 5;
+  repeated ServiceDescriptorProto service = 6;
+  repeated FieldDescriptorProto extension = 7;
+
+  optional FileOptions options = 8;
+
+  // This field contains optional information about the original source code.
+  // You may safely remove this entire field without harming runtime
+  // functionality of the descriptors -- the information is needed only by
+  // development tools.
+  optional SourceCodeInfo source_code_info = 9;
+
+  // The syntax of the proto file.
+  // The supported values are "proto2" and "proto3".
+  optional string syntax = 12;
+}
+
+// Describes a message type.
+message DescriptorProto {
+  optional string name = 1;
+
+  repeated FieldDescriptorProto field = 2;
+  repeated FieldDescriptorProto extension = 6;
+
+  repeated DescriptorProto nested_type = 3;
+  repeated EnumDescriptorProto enum_type = 4;
+
+  message ExtensionRange {
+    optional int32 start = 1;
+    optional int32 end = 2;
+
+    optional ExtensionRangeOptions options = 3;
+  }
+  repeated ExtensionRange extension_range = 5;
+
+  repeated OneofDescriptorProto oneof_decl = 8;
+
+  optional MessageOptions options = 7;
+
+  // Range of reserved tag numbers. Reserved tag numbers may not be used by
+  // fields or extension ranges in the same message. Reserved ranges may
+  // not overlap.
+  message ReservedRange {
+    optional int32 start = 1; // Inclusive.
+    optional int32 end = 2;   // Exclusive.
+  }
+  repeated ReservedRange reserved_range = 9;
+  // Reserved field names, which may not be used by fields in the same message.
+  // A given name may only be reserved once.
+  repeated string reserved_name = 10;
+}
+
+message ExtensionRangeOptions {
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+// Describes a field within a message.
+message FieldDescriptorProto {
+  enum Type {
+    // 0 is reserved for errors.
+    // Order is weird for historical reasons.
+    TYPE_DOUBLE         = 1;
+    TYPE_FLOAT          = 2;
+    // Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT64 if
+    // negative values are likely.
+    TYPE_INT64          = 3;
+    TYPE_UINT64         = 4;
+    // Not ZigZag encoded.  Negative numbers take 10 bytes.  Use TYPE_SINT32 if
+    // negative values are likely.
+    TYPE_INT32          = 5;
+    TYPE_FIXED64        = 6;
+    TYPE_FIXED32        = 7;
+    TYPE_BOOL           = 8;
+    TYPE_STRING         = 9;
+    // Tag-delimited aggregate.
+    // Group type is deprecated and not supported in proto3. However, Proto3
+    // implementations should still be able to parse the group wire format and
+    // treat group fields as unknown fields.
+    TYPE_GROUP          = 10;
+    TYPE_MESSAGE        = 11;  // Length-delimited aggregate.
+
+    // New in version 2.
+    TYPE_BYTES          = 12;
+    TYPE_UINT32         = 13;
+    TYPE_ENUM           = 14;
+    TYPE_SFIXED32       = 15;
+    TYPE_SFIXED64       = 16;
+    TYPE_SINT32         = 17;  // Uses ZigZag encoding.
+    TYPE_SINT64         = 18;  // Uses ZigZag encoding.
+  };
+
+  enum Label {
+    // 0 is reserved for errors
+    LABEL_OPTIONAL      = 1;
+    LABEL_REQUIRED      = 2;
+    LABEL_REPEATED      = 3;
+  };
+
+  optional string name = 1;
+  optional int32 number = 3;
+  optional Label label = 4;
+
+  // If type_name is set, this need not be set.  If both this and type_name
+  // are set, this must be one of TYPE_ENUM, TYPE_MESSAGE or TYPE_GROUP.
+  optional Type type = 5;
+
+  // For message and enum types, this is the name of the type.  If the name
+  // starts with a '.', it is fully-qualified.  Otherwise, C++-like scoping
+  // rules are used to find the type (i.e. first the nested types within this
+  // message are searched, then within the parent, on up to the root
+  // namespace).
+  optional string type_name = 6;
+
+  // For extensions, this is the name of the type being extended.  It is
+  // resolved in the same manner as type_name.
+  optional string extendee = 2;
+
+  // For numeric types, contains the original text representation of the value.
+  // For booleans, "true" or "false".
+  // For strings, contains the default text contents (not escaped in any way).
+  // For bytes, contains the C escaped value.  All bytes >= 128 are escaped.
+  // TODO(kenton):  Base-64 encode?
+  optional string default_value = 7;
+
+  // If set, gives the index of a oneof in the containing type's oneof_decl
+  // list.  This field is a member of that oneof.
+  optional int32 oneof_index = 9;
+
+  // JSON name of this field. The value is set by protocol compiler. If the
+  // user has set a "json_name" option on this field, that option's value
+  // will be used. Otherwise, it's deduced from the field's name by converting
+  // it to camelCase.
+  optional string json_name = 10;
+
+  optional FieldOptions options = 8;
+}
+
+// Describes a oneof.
+message OneofDescriptorProto {
+  optional string name = 1;
+  optional OneofOptions options = 2;
+}
+
+// Describes an enum type.
+message EnumDescriptorProto {
+  optional string name = 1;
+
+  repeated EnumValueDescriptorProto value = 2;
+
+  optional EnumOptions options = 3;
+
+  // Range of reserved numeric values. Reserved values may not be used by
+  // entries in the same enum. Reserved ranges may not overlap.
+  //
+  // Note that this is distinct from DescriptorProto.ReservedRange in that it
+  // is inclusive such that it can appropriately represent the entire int32
+  // domain.
+  message EnumReservedRange {
+    optional int32 start = 1; // Inclusive.
+    optional int32 end = 2;   // Inclusive.
+  }
+
+  // Range of reserved numeric values. Reserved numeric values may not be used
+  // by enum values in the same enum declaration. Reserved ranges may not
+  // overlap.
+  repeated EnumReservedRange reserved_range = 4;
+
+  // Reserved enum value names, which may not be reused. A given name may only
+  // be reserved once.
+  repeated string reserved_name = 5;
+}
+
+// Describes a value within an enum.
+message EnumValueDescriptorProto {
+  optional string name = 1;
+  optional int32 number = 2;
+
+  optional EnumValueOptions options = 3;
+}
+
+// Describes a service.
+message ServiceDescriptorProto {
+  optional string name = 1;
+  repeated MethodDescriptorProto method = 2;
+
+  optional ServiceOptions options = 3;
+}
+
+// Describes a method of a service.
+message MethodDescriptorProto {
+  optional string name = 1;
+
+  // Input and output type names.  These are resolved in the same way as
+  // FieldDescriptorProto.type_name, but must refer to a message type.
+  optional string input_type = 2;
+  optional string output_type = 3;
+
+  optional MethodOptions options = 4;
+
+  // Identifies if client streams multiple client messages
+  optional bool client_streaming = 5 [default=false];
+  // Identifies if server streams multiple server messages
+  optional bool server_streaming = 6 [default=false];
+}
+
+
+// ===================================================================
+// Options
+
+// Each of the definitions above may have "options" attached.  These are
+// just annotations which may cause code to be generated slightly differently
+// or may contain hints for code that manipulates protocol messages.
+//
+// Clients may define custom options as extensions of the *Options messages.
+// These extensions may not yet be known at parsing time, so the parser cannot
+// store the values in them.  Instead it stores them in a field in the *Options
+// message called uninterpreted_option. This field must have the same name
+// across all *Options messages. We then use this field to populate the
+// extensions when we build a descriptor, at which point all protos have been
+// parsed and so all extensions are known.
+//
+// Extension numbers for custom options may be chosen as follows:
+// * For options which will only be used within a single application or
+//   organization, or for experimental options, use field numbers 50000
+//   through 99999.  It is up to you to ensure that you do not use the
+//   same number for multiple options.
+// * For options which will be published and used publicly by multiple
+//   independent entities, e-mail protobuf-global-extension-registry@google.com
+//   to reserve extension numbers. Simply provide your project name (e.g.
+//   Objective-C plugin) and your project website (if available) -- there's no
+//   need to explain how you intend to use them. Usually you only need one
+//   extension number. You can declare multiple options with only one extension
+//   number by putting them in a sub-message. See the Custom Options section of
+//   the docs for examples:
+//   https://developers.google.com/protocol-buffers/docs/proto#options
+//   If this turns out to be popular, a web service will be set up
+//   to automatically assign option numbers.
+
+
+message FileOptions {
+
+  // Sets the Java package where classes generated from this .proto will be
+  // placed.  By default, the proto package is used, but this is often
+  // inappropriate because proto packages do not normally start with backwards
+  // domain names.
+  optional string java_package = 1;
+
+
+  // If set, all the classes from the .proto file are wrapped in a single
+  // outer class with the given name.  This applies to both Proto1
+  // (equivalent to the old "--one_java_file" option) and Proto2 (where
+  // a .proto always translates to a single class, but you may want to
+  // explicitly choose the class name).
+  optional string java_outer_classname = 8;
+
+  // If set true, then the Java code generator will generate a separate .java
+  // file for each top-level message, enum, and service defined in the .proto
+  // file.  Thus, these types will *not* be nested inside the outer class
+  // named by java_outer_classname.  However, the outer class will still be
+  // generated to contain the file's getDescriptor() method as well as any
+  // top-level extensions defined in the file.
+  optional bool java_multiple_files = 10 [default=false];
+
+  // This option does nothing.
+  optional bool java_generate_equals_and_hash = 20 [deprecated=true];
+
+  // If set true, then the Java2 code generator will generate code that
+  // throws an exception whenever an attempt is made to assign a non-UTF-8
+  // byte sequence to a string field.
+  // Message reflection will do the same.
+  // However, an extension field still accepts non-UTF-8 byte sequences.
+  // This option has no effect on when used with the lite runtime.
+  optional bool java_string_check_utf8 = 27 [default=false];
+
+
+  // Generated classes can be optimized for speed or code size.
+  enum OptimizeMode {
+    SPEED = 1;        // Generate complete code for parsing, serialization,
+                      // etc.
+    CODE_SIZE = 2;    // Use ReflectionOps to implement these methods.
+    LITE_RUNTIME = 3; // Generate code using MessageLite and the lite runtime.
+  }
+  optional OptimizeMode optimize_for = 9 [default=SPEED];
+
+  // Sets the Go package where structs generated from this .proto will be
+  // placed. If omitted, the Go package will be derived from the following:
+  //   - The basename of the package import path, if provided.
+  //   - Otherwise, the package statement in the .proto file, if present.
+  //   - Otherwise, the basename of the .proto file, without extension.
+  optional string go_package = 11;
+
+
+
+  // Should generic services be generated in each language?  "Generic" services
+  // are not specific to any particular RPC system.  They are generated by the
+  // main code generators in each language (without additional plugins).
+  // Generic services were the only kind of service generation supported by
+  // early versions of google.protobuf.
+  //
+  // Generic services are now considered deprecated in favor of using plugins
+  // that generate code specific to your particular RPC system.  Therefore,
+  // these default to false.  Old code which depends on generic services should
+  // explicitly set them to true.
+  optional bool cc_generic_services = 16 [default=false];
+  optional bool java_generic_services = 17 [default=false];
+  optional bool py_generic_services = 18 [default=false];
+  optional bool php_generic_services = 42 [default=false];
+
+  // Is this file deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for everything in the file, or it will be completely ignored; in the very
+  // least, this is a formalization for deprecating files.
+  optional bool deprecated = 23 [default=false];
+
+  // Enables the use of arenas for the proto messages in this file. This applies
+  // only to generated classes for C++.
+  optional bool cc_enable_arenas = 31 [default=false];
+
+
+  // Sets the objective c class prefix which is prepended to all objective c
+  // generated classes from this .proto. There is no default.
+  optional string objc_class_prefix = 36;
+
+  // Namespace for generated classes; defaults to the package.
+  optional string csharp_namespace = 37;
+
+  // By default Swift generators will take the proto package and CamelCase it
+  // replacing '.' with underscore and use that to prefix the types/symbols
+  // defined. When this options is provided, they will use this value instead
+  // to prefix the types/symbols defined.
+  optional string swift_prefix = 39;
+
+  // Sets the php class prefix which is prepended to all php generated classes
+  // from this .proto. Default is empty.
+  optional string php_class_prefix = 40;
+
+  // Use this option to change the namespace of php generated classes. Default
+  // is empty. When this option is empty, the package name will be used for
+  // determining the namespace.
+  optional string php_namespace = 41;
+
+  // The parser stores options it doesn't recognize here.
+  // See the documentation for the "Options" section above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message.
+  // See the documentation for the "Options" section above.
+  extensions 1000 to max;
+
+  reserved 38;
+}
+
+message MessageOptions {
+  // Set true to use the old proto1 MessageSet wire format for extensions.
+  // This is provided for backwards-compatibility with the MessageSet wire
+  // format.  You should not use this for any other reason:  It's less
+  // efficient, has fewer features, and is more complicated.
+  //
+  // The message must be defined exactly as follows:
+  //   message Foo {
+  //     option message_set_wire_format = true;
+  //     extensions 4 to max;
+  //   }
+  // Note that the message cannot have any defined fields; MessageSets only
+  // have extensions.
+  //
+  // All extensions of your type must be singular messages; e.g. they cannot
+  // be int32s, enums, or repeated messages.
+  //
+  // Because this is an option, the above two restrictions are not enforced by
+  // the protocol compiler.
+  optional bool message_set_wire_format = 1 [default=false];
+
+  // Disables the generation of the standard "descriptor()" accessor, which can
+  // conflict with a field of the same name.  This is meant to make migration
+  // from proto1 easier; new code should avoid fields named "descriptor".
+  optional bool no_standard_descriptor_accessor = 2 [default=false];
+
+  // Is this message deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the message, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating messages.
+  optional bool deprecated = 3 [default=false];
+
+  // Whether the message is an automatically generated map entry type for the
+  // maps field.
+  //
+  // For maps fields:
+  //     map<KeyType, ValueType> map_field = 1;
+  // The parsed descriptor looks like:
+  //     message MapFieldEntry {
+  //         option map_entry = true;
+  //         optional KeyType key = 1;
+  //         optional ValueType value = 2;
+  //     }
+  //     repeated MapFieldEntry map_field = 1;
+  //
+  // Implementations may choose not to generate the map_entry=true message, but
+  // use a native map in the target language to hold the keys and values.
+  // The reflection APIs in such implementions still need to work as
+  // if the field is a repeated message field.
+  //
+  // NOTE: Do not set the option in .proto files. Always use the maps syntax
+  // instead. The option should only be implicitly set by the proto compiler
+  // parser.
+  optional bool map_entry = 7;
+
+  reserved 8;  // javalite_serializable
+  reserved 9;  // javanano_as_lite
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message FieldOptions {
+  // The ctype option instructs the C++ code generator to use a different
+  // representation of the field than it normally would.  See the specific
+  // options below.  This option is not yet implemented in the open source
+  // release -- sorry, we'll try to include it in a future version!
+  optional CType ctype = 1 [default = STRING];
+  enum CType {
+    // Default mode.
+    STRING = 0;
+
+    CORD = 1;
+
+    STRING_PIECE = 2;
+  }
+  // The packed option can be enabled for repeated primitive fields to enable
+  // a more efficient representation on the wire. Rather than repeatedly
+  // writing the tag and type for each element, the entire array is encoded as
+  // a single length-delimited blob. In proto3, only explicit setting it to
+  // false will avoid using packed encoding.
+  optional bool packed = 2;
+
+  // The jstype option determines the JavaScript type used for values of the
+  // field.  The option is permitted only for 64 bit integral and fixed types
+  // (int64, uint64, sint64, fixed64, sfixed64).  A field with jstype JS_STRING
+  // is represented as JavaScript string, which avoids loss of precision that
+  // can happen when a large value is converted to a floating point JavaScript.
+  // Specifying JS_NUMBER for the jstype causes the generated JavaScript code to
+  // use the JavaScript "number" type.  The behavior of the default option
+  // JS_NORMAL is implementation dependent.
+  //
+  // This option is an enum to permit additional types to be added, e.g.
+  // goog.math.Integer.
+  optional JSType jstype = 6 [default = JS_NORMAL];
+  enum JSType {
+    // Use the default type.
+    JS_NORMAL = 0;
+
+    // Use JavaScript strings.
+    JS_STRING = 1;
+
+    // Use JavaScript numbers.
+    JS_NUMBER = 2;
+  }
+
+  // Should this field be parsed lazily?  Lazy applies only to message-type
+  // fields.  It means that when the outer message is initially parsed, the
+  // inner message's contents will not be parsed but instead stored in encoded
+  // form.  The inner message will actually be parsed when it is first accessed.
+  //
+  // This is only a hint.  Implementations are free to choose whether to use
+  // eager or lazy parsing regardless of the value of this option.  However,
+  // setting this option true suggests that the protocol author believes that
+  // using lazy parsing on this field is worth the additional bookkeeping
+  // overhead typically needed to implement it.
+  //
+  // This option does not affect the public interface of any generated code;
+  // all method signatures remain the same.  Furthermore, thread-safety of the
+  // interface is not affected by this option; const methods remain safe to
+  // call from multiple threads concurrently, while non-const methods continue
+  // to require exclusive access.
+  //
+  //
+  // Note that implementations may choose not to check required fields within
+  // a lazy sub-message.  That is, calling IsInitialized() on the outer message
+  // may return true even if the inner message has missing required fields.
+  // This is necessary because otherwise the inner message would have to be
+  // parsed in order to perform the check, defeating the purpose of lazy
+  // parsing.  An implementation which chooses not to check required fields
+  // must be consistent about it.  That is, for any particular sub-message, the
+  // implementation must either *always* check its required fields, or *never*
+  // check its required fields, regardless of whether or not the message has
+  // been parsed.
+  optional bool lazy = 5 [default=false];
+
+  // Is this field deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for accessors, or it will be completely ignored; in the very least, this
+  // is a formalization for deprecating fields.
+  optional bool deprecated = 3 [default=false];
+
+  // For Google-internal migration only. Do not use.
+  optional bool weak = 10 [default=false];
+
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+
+  reserved 4;  // removed jtype
+}
+
+message OneofOptions {
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message EnumOptions {
+
+  // Set this option to true to allow mapping different tag names to the same
+  // value.
+  optional bool allow_alias = 2;
+
+  // Is this enum deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the enum, or it will be completely ignored; in the very least, this
+  // is a formalization for deprecating enums.
+  optional bool deprecated = 3 [default=false];
+
+  reserved 5;  // javanano_as_lite
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message EnumValueOptions {
+  // Is this enum value deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the enum value, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating enum values.
+  optional bool deprecated = 1 [default=false];
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message ServiceOptions {
+
+  // Note:  Field numbers 1 through 32 are reserved for Google's internal RPC
+  //   framework.  We apologize for hoarding these numbers to ourselves, but
+  //   we were already using them long before we decided to release Protocol
+  //   Buffers.
+
+  // Is this service deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the service, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating services.
+  optional bool deprecated = 33 [default=false];
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+message MethodOptions {
+
+  // Note:  Field numbers 1 through 32 are reserved for Google's internal RPC
+  //   framework.  We apologize for hoarding these numbers to ourselves, but
+  //   we were already using them long before we decided to release Protocol
+  //   Buffers.
+
+  // Is this method deprecated?
+  // Depending on the target platform, this can emit Deprecated annotations
+  // for the method, or it will be completely ignored; in the very least,
+  // this is a formalization for deprecating methods.
+  optional bool deprecated = 33 [default=false];
+
+  // Is this method side-effect-free (or safe in HTTP parlance), or idempotent,
+  // or neither? HTTP based RPC implementation may choose GET verb for safe
+  // methods, and PUT verb for idempotent methods instead of the default POST.
+  enum IdempotencyLevel {
+    IDEMPOTENCY_UNKNOWN = 0;
+    NO_SIDE_EFFECTS     = 1; // implies idempotent
+    IDEMPOTENT          = 2; // idempotent, but may have side effects
+  }
+  optional IdempotencyLevel idempotency_level =
+      34 [default=IDEMPOTENCY_UNKNOWN];
+
+  // The parser stores options it doesn't recognize here. See above.
+  repeated UninterpretedOption uninterpreted_option = 999;
+
+  // Clients can define custom options in extensions of this message. See above.
+  extensions 1000 to max;
+}
+
+
+// A message representing a option the parser does not recognize. This only
+// appears in options protos created by the compiler::Parser class.
+// DescriptorPool resolves these when building Descriptor objects. Therefore,
+// options protos in descriptor objects (e.g. returned by Descriptor::options(),
+// or produced by Descriptor::CopyTo()) will never have UninterpretedOptions
+// in them.
+message UninterpretedOption {
+  // The name of the uninterpreted option.  Each string represents a segment in
+  // a dot-separated name.  is_extension is true iff a segment represents an
+  // extension (denoted with parentheses in options specs in .proto files).
+  // E.g.,{ ["foo", false], ["bar.baz", true], ["qux", false] } represents
+  // "foo.(bar.baz).qux".
+  message NamePart {
+    required string name_part = 1;
+    required bool is_extension = 2;
+  }
+  repeated NamePart name = 2;
+
+  // The value of the uninterpreted option, in whatever type the tokenizer
+  // identified it as during parsing. Exactly one of these should be set.
+  optional string identifier_value = 3;
+  optional uint64 positive_int_value = 4;
+  optional int64 negative_int_value = 5;
+  optional double double_value = 6;
+  optional bytes string_value = 7;
+  optional string aggregate_value = 8;
+}
+
+// ===================================================================
+// Optional source code info
+
+// Encapsulates information about the original source file from which a
+// FileDescriptorProto was generated.
+message SourceCodeInfo {
+  // A Location identifies a piece of source code in a .proto file which
+  // corresponds to a particular definition.  This information is intended
+  // to be useful to IDEs, code indexers, documentation generators, and similar
+  // tools.
+  //
+  // For example, say we have a file like:
+  //   message Foo {
+  //     optional string foo = 1;
+  //   }
+  // Let's look at just the field definition:
+  //   optional string foo = 1;
+  //   ^       ^^     ^^  ^  ^^^
+  //   a       bc     de  f  ghi
+  // We have the following locations:
+  //   span   path               represents
+  //   [a,i)  [ 4, 0, 2, 0 ]     The whole field definition.
+  //   [a,b)  [ 4, 0, 2, 0, 4 ]  The label (optional).
+  //   [c,d)  [ 4, 0, 2, 0, 5 ]  The type (string).
+  //   [e,f)  [ 4, 0, 2, 0, 1 ]  The name (foo).
+  //   [g,h)  [ 4, 0, 2, 0, 3 ]  The number (1).
+  //
+  // Notes:
+  // - A location may refer to a repeated field itself (i.e. not to any
+  //   particular index within it).  This is used whenever a set of elements are
+  //   logically enclosed in a single code segment.  For example, an entire
+  //   extend block (possibly containing multiple extension definitions) will
+  //   have an outer location whose path refers to the "extensions" repeated
+  //   field without an index.
+  // - Multiple locations may have the same path.  This happens when a single
+  //   logical declaration is spread out across multiple places.  The most
+  //   obvious example is the "extend" block again -- there may be multiple
+  //   extend blocks in the same scope, each of which will have the same path.
+  // - A location's span is not always a subset of its parent's span.  For
+  //   example, the "extendee" of an extension declaration appears at the
+  //   beginning of the "extend" block and is shared by all extensions within
+  //   the block.
+  // - Just because a location's span is a subset of some other location's span
+  //   does not mean that it is a descendent.  For example, a "group" defines
+  //   both a type and a field in a single declaration.  Thus, the locations
+  //   corresponding to the type and field and their components will overlap.
+  // - Code which tries to interpret locations should probably be designed to
+  //   ignore those that it doesn't understand, as more types of locations could
+  //   be recorded in the future.
+  repeated Location location = 1;
+  message Location {
+    // Identifies which part of the FileDescriptorProto was defined at this
+    // location.
+    //
+    // Each element is a field number or an index.  They form a path from
+    // the root FileDescriptorProto to the place where the definition.  For
+    // example, this path:
+    //   [ 4, 3, 2, 7, 1 ]
+    // refers to:
+    //   file.message_type(3)  // 4, 3
+    //       .field(7)         // 2, 7
+    //       .name()           // 1
+    // This is because FileDescriptorProto.message_type has field number 4:
+    //   repeated DescriptorProto message_type = 4;
+    // and DescriptorProto.field has field number 2:
+    //   repeated FieldDescriptorProto field = 2;
+    // and FieldDescriptorProto.name has field number 1:
+    //   optional string name = 1;
+    //
+    // Thus, the above path gives the location of a field name.  If we removed
+    // the last element:
+    //   [ 4, 3, 2, 7 ]
+    // this path refers to the whole field declaration (from the beginning
+    // of the label to the terminating semicolon).
+    repeated int32 path = 1 [packed=true];
+
+    // Always has exactly three or four elements: start line, start column,
+    // end line (optional, otherwise assumed same as start line), end column.
+    // These are packed into a single field for efficiency.  Note that line
+    // and column numbers are zero-based -- typically you will want to add
+    // 1 to each before displaying to a user.
+    repeated int32 span = 2 [packed=true];
+
+    // If this SourceCodeInfo represents a complete declaration, these are any
+    // comments appearing before and after the declaration which appear to be
+    // attached to the declaration.
+    //
+    // A series of line comments appearing on consecutive lines, with no other
+    // tokens appearing on those lines, will be treated as a single comment.
+    //
+    // leading_detached_comments will keep paragraphs of comments that appear
+    // before (but not connected to) the current element. Each paragraph,
+    // separated by empty lines, will be one comment element in the repeated
+    // field.
+    //
+    // Only the comment content is provided; comment markers (e.g. //) are
+    // stripped out.  For block comments, leading whitespace and an asterisk
+    // will be stripped from the beginning of each line other than the first.
+    // Newlines are included in the output.
+    //
+    // Examples:
+    //
+    //   optional int32 foo = 1;  // Comment attached to foo.
+    //   // Comment attached to bar.
+    //   optional int32 bar = 2;
+    //
+    //   optional string baz = 3;
+    //   // Comment attached to baz.
+    //   // Another line attached to baz.
+    //
+    //   // Comment attached to qux.
+    //   //
+    //   // Another line attached to qux.
+    //   optional double qux = 4;
+    //
+    //   // Detached comment for corge. This is not leading or trailing comments
+    //   // to qux or corge because there are blank lines separating it from
+    //   // both.
+    //
+    //   // Detached comment for corge paragraph 2.
+    //
+    //   optional string corge = 5;
+    //   /* Block comment attached
+    //    * to corge.  Leading asterisks
+    //    * will be removed. */
+    //   /* Block comment attached to
+    //    * grault. */
+    //   optional int32 grault = 6;
+    //
+    //   // ignored detached comments.
+    optional string leading_comments = 3;
+    optional string trailing_comments = 4;
+    repeated string leading_detached_comments = 6;
+  }
+}
+
+// Describes the relationship between generated code and its original source
+// file. A GeneratedCodeInfo message is associated with only one generated
+// source file, but may contain references to different source .proto files.
+message GeneratedCodeInfo {
+  // An Annotation connects some span of text in generated code to an element
+  // of its generating .proto file.
+  repeated Annotation annotation = 1;
+  message Annotation {
+    // Identifies the element in the original source .proto file. This field
+    // is formatted the same as SourceCodeInfo.Location.path.
+    repeated int32 path = 1 [packed=true];
+
+    // Identifies the filesystem path to the original source .proto.
+    optional string source_file = 2;
+
+    // Identifies the starting offset in bytes in the generated code
+    // that relates to the identified object.
+    optional int32 begin = 3;
+
+    // Identifies the ending offset in bytes in the generated code that
+    // relates to the identified offset. The end offset should be one past
+    // the last relevant byte (so the length of the text = end - begin).
+    optional int32 end = 4;
+  }
+}

vendor/github.com/golang/protobuf/protoc-gen-go/generator/internal/remap/remap.go

@@ -0,0 +1,117 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2017 The Go Authors.  All rights reserved.
+// https://github.com/golang/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/*
+Package remap handles tracking the locations of Go tokens in a source text
+across a rewrite by the Go formatter.
+*/
+package remap
+
+import (
+	"fmt"
+	"go/scanner"
+	"go/token"
+)
+
+// A Location represents a span of byte offsets in the source text.
+type Location struct {
+	Pos, End int // End is exclusive
+}
+
+// A Map represents a mapping between token locations in an input source text
+// and locations in the correspnding output text.
+type Map map[Location]Location
+
+// Find reports whether the specified span is recorded by m, and if so returns
+// the new location it was mapped to. If the input span was not found, the
+// returned location is the same as the input.
+func (m Map) Find(pos, end int) (Location, bool) {
+	key := Location{
+		Pos: pos,
+		End: end,
+	}
+	if loc, ok := m[key]; ok {
+		return loc, true
+	}
+	return key, false
+}
+
+func (m Map) add(opos, oend, npos, nend int) {
+	m[Location{Pos: opos, End: oend}] = Location{Pos: npos, End: nend}
+}
+
+// Compute constructs a location mapping from input to output.  An error is
+// reported if any of the tokens of output cannot be mapped.
+func Compute(input, output []byte) (Map, error) {
+	itok := tokenize(input)
+	otok := tokenize(output)
+	if len(itok) != len(otok) {
+		return nil, fmt.Errorf("wrong number of tokens, %d ≠ %d", len(itok), len(otok))
+	}
+	m := make(Map)
+	for i, ti := range itok {
+		to := otok[i]
+		if ti.Token != to.Token {
+			return nil, fmt.Errorf("token %d type mismatch: %s ≠ %s", i+1, ti, to)
+		}
+		m.add(ti.pos, ti.end, to.pos, to.end)
+	}
+	return m, nil
+}
+
+// tokinfo records the span and type of a source token.
+type tokinfo struct {
+	pos, end int
+	token.Token
+}
+
+func tokenize(src []byte) []tokinfo {
+	fs := token.NewFileSet()
+	var s scanner.Scanner
+	s.Init(fs.AddFile("src", fs.Base(), len(src)), src, nil, scanner.ScanComments)
+	var info []tokinfo
+	for {
+		pos, next, lit := s.Scan()
+		switch next {
+		case token.SEMICOLON:
+			continue
+		}
+		info = append(info, tokinfo{
+			pos:   int(pos - 1),
+			end:   int(pos + token.Pos(len(lit)) - 1),
+			Token: next,
+		})
+		if next == token.EOF {
+			break
+		}
+	}
+	return info
+}

vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.go

@@ -0,0 +1,369 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/protobuf/compiler/plugin.proto
+
+/*
+Package plugin_go is a generated protocol buffer package.
+
+It is generated from these files:
+	google/protobuf/compiler/plugin.proto
+
+It has these top-level messages:
+	Version
+	CodeGeneratorRequest
+	CodeGeneratorResponse
+*/
+package plugin_go
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// The version number of protocol compiler.
+type Version struct {
+	Major *int32 `protobuf:"varint,1,opt,name=major" json:"major,omitempty"`
+	Minor *int32 `protobuf:"varint,2,opt,name=minor" json:"minor,omitempty"`
+	Patch *int32 `protobuf:"varint,3,opt,name=patch" json:"patch,omitempty"`
+	// A suffix for alpha, beta or rc release, e.g., "alpha-1", "rc2". It should
+	// be empty for mainline stable releases.
+	Suffix               *string  `protobuf:"bytes,4,opt,name=suffix" json:"suffix,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Version) Reset()                    { *m = Version{} }
+func (m *Version) String() string            { return proto.CompactTextString(m) }
+func (*Version) ProtoMessage()               {}
+func (*Version) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} }
+func (m *Version) Unmarshal(b []byte) error {
+	return xxx_messageInfo_Version.Unmarshal(m, b)
+}
+func (m *Version) Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Version.Marshal(b, m, deterministic)
+}
+func (dst *Version) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Version.Merge(dst, src)
+}
+func (m *Version) XXX_Size() int {
+	return xxx_messageInfo_Version.Size(m)
+}
+func (m *Version) XXX_DiscardUnknown() {
+	xxx_messageInfo_Version.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Version proto.InternalMessageInfo
+
+func (m *Version) GetMajor() int32 {
+	if m != nil && m.Major != nil {
+		return *m.Major
+	}
+	return 0
+}
+
+func (m *Version) GetMinor() int32 {
+	if m != nil && m.Minor != nil {
+		return *m.Minor
+	}
+	return 0
+}
+
+func (m *Version) GetPatch() int32 {
+	if m != nil && m.Patch != nil {
+		return *m.Patch
+	}
+	return 0
+}
+
+func (m *Version) GetSuffix() string {
+	if m != nil && m.Suffix != nil {
+		return *m.Suffix
+	}
+	return ""
+}
+
+// An encoded CodeGeneratorRequest is written to the plugin's stdin.
+type CodeGeneratorRequest struct {
+	// The .proto files that were explicitly listed on the command-line.  The
+	// code generator should generate code only for these files.  Each file's
+	// descriptor will be included in proto_file, below.
+	FileToGenerate []string `protobuf:"bytes,1,rep,name=file_to_generate,json=fileToGenerate" json:"file_to_generate,omitempty"`
+	// The generator parameter passed on the command-line.
+	Parameter *string `protobuf:"bytes,2,opt,name=parameter" json:"parameter,omitempty"`
+	// FileDescriptorProtos for all files in files_to_generate and everything
+	// they import.  The files will appear in topological order, so each file
+	// appears before any file that imports it.
+	//
+	// protoc guarantees that all proto_files will be written after
+	// the fields above, even though this is not technically guaranteed by the
+	// protobuf wire format.  This theoretically could allow a plugin to stream
+	// in the FileDescriptorProtos and handle them one by one rather than read
+	// the entire set into memory at once.  However, as of this writing, this
+	// is not similarly optimized on protoc's end -- it will store all fields in
+	// memory at once before sending them to the plugin.
+	//
+	// Type names of fields and extensions in the FileDescriptorProto are always
+	// fully qualified.
+	ProtoFile []*google_protobuf.FileDescriptorProto `protobuf:"bytes,15,rep,name=proto_file,json=protoFile" json:"proto_file,omitempty"`
+	// The version number of protocol compiler.
+	CompilerVersion      *Version `protobuf:"bytes,3,opt,name=compiler_version,json=compilerVersion" json:"compiler_version,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *CodeGeneratorRequest) Reset()                    { *m = CodeGeneratorRequest{} }
+func (m *CodeGeneratorRequest) String() string            { return proto.CompactTextString(m) }
+func (*CodeGeneratorRequest) ProtoMessage()               {}
+func (*CodeGeneratorRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} }
+func (m *CodeGeneratorRequest) Unmarshal(b []byte) error {
+	return xxx_messageInfo_CodeGeneratorRequest.Unmarshal(m, b)
+}
+func (m *CodeGeneratorRequest) Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CodeGeneratorRequest.Marshal(b, m, deterministic)
+}
+func (dst *CodeGeneratorRequest) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CodeGeneratorRequest.Merge(dst, src)
+}
+func (m *CodeGeneratorRequest) XXX_Size() int {
+	return xxx_messageInfo_CodeGeneratorRequest.Size(m)
+}
+func (m *CodeGeneratorRequest) XXX_DiscardUnknown() {
+	xxx_messageInfo_CodeGeneratorRequest.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CodeGeneratorRequest proto.InternalMessageInfo
+
+func (m *CodeGeneratorRequest) GetFileToGenerate() []string {
+	if m != nil {
+		return m.FileToGenerate
+	}
+	return nil
+}
+
+func (m *CodeGeneratorRequest) GetParameter() string {
+	if m != nil && m.Parameter != nil {
+		return *m.Parameter
+	}
+	return ""
+}
+
+func (m *CodeGeneratorRequest) GetProtoFile() []*google_protobuf.FileDescriptorProto {
+	if m != nil {
+		return m.ProtoFile
+	}
+	return nil
+}
+
+func (m *CodeGeneratorRequest) GetCompilerVersion() *Version {
+	if m != nil {
+		return m.CompilerVersion
+	}
+	return nil
+}
+
+// The plugin writes an encoded CodeGeneratorResponse to stdout.
+type CodeGeneratorResponse struct {
+	// Error message.  If non-empty, code generation failed.  The plugin process
+	// should exit with status code zero even if it reports an error in this way.
+	//
+	// This should be used to indicate errors in .proto files which prevent the
+	// code generator from generating correct code.  Errors which indicate a
+	// problem in protoc itself -- such as the input CodeGeneratorRequest being
+	// unparseable -- should be reported by writing a message to stderr and
+	// exiting with a non-zero status code.
+	Error                *string                       `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
+	File                 []*CodeGeneratorResponse_File `protobuf:"bytes,15,rep,name=file" json:"file,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}                      `json:"-"`
+	XXX_unrecognized     []byte                        `json:"-"`
+	XXX_sizecache        int32                         `json:"-"`
+}
+
+func (m *CodeGeneratorResponse) Reset()                    { *m = CodeGeneratorResponse{} }
+func (m *CodeGeneratorResponse) String() string            { return proto.CompactTextString(m) }
+func (*CodeGeneratorResponse) ProtoMessage()               {}
+func (*CodeGeneratorResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} }
+func (m *CodeGeneratorResponse) Unmarshal(b []byte) error {
+	return xxx_messageInfo_CodeGeneratorResponse.Unmarshal(m, b)
+}
+func (m *CodeGeneratorResponse) Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CodeGeneratorResponse.Marshal(b, m, deterministic)
+}
+func (dst *CodeGeneratorResponse) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CodeGeneratorResponse.Merge(dst, src)
+}
+func (m *CodeGeneratorResponse) XXX_Size() int {
+	return xxx_messageInfo_CodeGeneratorResponse.Size(m)
+}
+func (m *CodeGeneratorResponse) XXX_DiscardUnknown() {
+	xxx_messageInfo_CodeGeneratorResponse.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CodeGeneratorResponse proto.InternalMessageInfo
+
+func (m *CodeGeneratorResponse) GetError() string {
+	if m != nil && m.Error != nil {
+		return *m.Error
+	}
+	return ""
+}
+
+func (m *CodeGeneratorResponse) GetFile() []*CodeGeneratorResponse_File {
+	if m != nil {
+		return m.File
+	}
+	return nil
+}
+
+// Represents a single generated file.
+type CodeGeneratorResponse_File struct {
+	// The file name, relative to the output directory.  The name must not
+	// contain "." or ".." components and must be relative, not be absolute (so,
+	// the file cannot lie outside the output directory).  "/" must be used as
+	// the path separator, not "\".
+	//
+	// If the name is omitted, the content will be appended to the previous
+	// file.  This allows the generator to break large files into small chunks,
+	// and allows the generated text to be streamed back to protoc so that large
+	// files need not reside completely in memory at one time.  Note that as of
+	// this writing protoc does not optimize for this -- it will read the entire
+	// CodeGeneratorResponse before writing files to disk.
+	Name *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	// If non-empty, indicates that the named file should already exist, and the
+	// content here is to be inserted into that file at a defined insertion
+	// point.  This feature allows a code generator to extend the output
+	// produced by another code generator.  The original generator may provide
+	// insertion points by placing special annotations in the file that look
+	// like:
+	//   @@protoc_insertion_point(NAME)
+	// The annotation can have arbitrary text before and after it on the line,
+	// which allows it to be placed in a comment.  NAME should be replaced with
+	// an identifier naming the point -- this is what other generators will use
+	// as the insertion_point.  Code inserted at this point will be placed
+	// immediately above the line containing the insertion point (thus multiple
+	// insertions to the same point will come out in the order they were added).
+	// The double-@ is intended to make it unlikely that the generated code
+	// could contain things that look like insertion points by accident.
+	//
+	// For example, the C++ code generator places the following line in the
+	// .pb.h files that it generates:
+	//   // @@protoc_insertion_point(namespace_scope)
+	// This line appears within the scope of the file's package namespace, but
+	// outside of any particular class.  Another plugin can then specify the
+	// insertion_point "namespace_scope" to generate additional classes or
+	// other declarations that should be placed in this scope.
+	//
+	// Note that if the line containing the insertion point begins with
+	// whitespace, the same whitespace will be added to every line of the
+	// inserted text.  This is useful for languages like Python, where
+	// indentation matters.  In these languages, the insertion point comment
+	// should be indented the same amount as any inserted code will need to be
+	// in order to work correctly in that context.
+	//
+	// The code generator that generates the initial file and the one which
+	// inserts into it must both run as part of a single invocation of protoc.
+	// Code generators are executed in the order in which they appear on the
+	// command line.
+	//
+	// If |insertion_point| is present, |name| must also be present.
+	InsertionPoint *string `protobuf:"bytes,2,opt,name=insertion_point,json=insertionPoint" json:"insertion_point,omitempty"`
+	// The file contents.
+	Content              *string  `protobuf:"bytes,15,opt,name=content" json:"content,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *CodeGeneratorResponse_File) Reset()                    { *m = CodeGeneratorResponse_File{} }
+func (m *CodeGeneratorResponse_File) String() string            { return proto.CompactTextString(m) }
+func (*CodeGeneratorResponse_File) ProtoMessage()               {}
+func (*CodeGeneratorResponse_File) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2, 0} }
+func (m *CodeGeneratorResponse_File) Unmarshal(b []byte) error {
+	return xxx_messageInfo_CodeGeneratorResponse_File.Unmarshal(m, b)
+}
+func (m *CodeGeneratorResponse_File) Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_CodeGeneratorResponse_File.Marshal(b, m, deterministic)
+}
+func (dst *CodeGeneratorResponse_File) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_CodeGeneratorResponse_File.Merge(dst, src)
+}
+func (m *CodeGeneratorResponse_File) XXX_Size() int {
+	return xxx_messageInfo_CodeGeneratorResponse_File.Size(m)
+}
+func (m *CodeGeneratorResponse_File) XXX_DiscardUnknown() {
+	xxx_messageInfo_CodeGeneratorResponse_File.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_CodeGeneratorResponse_File proto.InternalMessageInfo
+
+func (m *CodeGeneratorResponse_File) GetName() string {
+	if m != nil && m.Name != nil {
+		return *m.Name
+	}
+	return ""
+}
+
+func (m *CodeGeneratorResponse_File) GetInsertionPoint() string {
+	if m != nil && m.InsertionPoint != nil {
+		return *m.InsertionPoint
+	}
+	return ""
+}
+
+func (m *CodeGeneratorResponse_File) GetContent() string {
+	if m != nil && m.Content != nil {
+		return *m.Content
+	}
+	return ""
+}
+
+func init() {
+	proto.RegisterType((*Version)(nil), "google.protobuf.compiler.Version")
+	proto.RegisterType((*CodeGeneratorRequest)(nil), "google.protobuf.compiler.CodeGeneratorRequest")
+	proto.RegisterType((*CodeGeneratorResponse)(nil), "google.protobuf.compiler.CodeGeneratorResponse")
+	proto.RegisterType((*CodeGeneratorResponse_File)(nil), "google.protobuf.compiler.CodeGeneratorResponse.File")
+}
+
+func init() { proto.RegisterFile("google/protobuf/compiler/plugin.proto", fileDescriptor0) }
+
+var fileDescriptor0 = []byte{
+	// 417 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x92, 0xcf, 0x6a, 0x14, 0x41,
+	0x10, 0xc6, 0x19, 0x77, 0x63, 0x98, 0x8a, 0x64, 0x43, 0x13, 0xa5, 0x09, 0x39, 0x8c, 0x8b, 0xe2,
+	0x5c, 0x32, 0x0b, 0xc1, 0x8b, 0x78, 0x4b, 0x44, 0x3d, 0x78, 0x58, 0x1a, 0xf1, 0x20, 0xc8, 0x30,
+	0x99, 0xd4, 0x74, 0x5a, 0x66, 0xba, 0xc6, 0xee, 0x1e, 0xf1, 0x49, 0x7d, 0x0f, 0xdf, 0x40, 0xfa,
+	0xcf, 0x24, 0xb2, 0xb8, 0xa7, 0xee, 0xef, 0x57, 0xd5, 0xd5, 0x55, 0x1f, 0x05, 0x2f, 0x25, 0x91,
+	0xec, 0x71, 0x33, 0x1a, 0x72, 0x74, 0x33, 0x75, 0x9b, 0x96, 0x86, 0x51, 0xf5, 0x68, 0x36, 0x63,
+	0x3f, 0x49, 0xa5, 0xab, 0x10, 0x60, 0x3c, 0xa6, 0x55, 0x73, 0x5a, 0x35, 0xa7, 0x9d, 0x15, 0xbb,
+	0x05, 0x6e, 0xd1, 0xb6, 0x46, 0x8d, 0x8e, 0x4c, 0xcc, 0x5e, 0xb7, 0x70, 0xf8, 0x05, 0x8d, 0x55,
+	0xa4, 0xd9, 0x29, 0x1c, 0x0c, 0xcd, 0x77, 0x32, 0x3c, 0x2b, 0xb2, 0xf2, 0x40, 0x44, 0x11, 0xa8,
+	0xd2, 0x64, 0xf8, 0xa3, 0x44, 0xbd, 0xf0, 0x74, 0x6c, 0x5c, 0x7b, 0xc7, 0x17, 0x91, 0x06, 0xc1,
+	0x9e, 0xc1, 0x63, 0x3b, 0x75, 0x9d, 0xfa, 0xc5, 0x97, 0x45, 0x56, 0xe6, 0x22, 0xa9, 0xf5, 0x9f,
+	0x0c, 0x4e, 0xaf, 0xe9, 0x16, 0x3f, 0xa0, 0x46, 0xd3, 0x38, 0x32, 0x02, 0x7f, 0x4c, 0x68, 0x1d,
+	0x2b, 0xe1, 0xa4, 0x53, 0x3d, 0xd6, 0x8e, 0x6a, 0x19, 0x63, 0xc8, 0xb3, 0x62, 0x51, 0xe6, 0xe2,
+	0xd8, 0xf3, 0xcf, 0x94, 0x5e, 0x20, 0x3b, 0x87, 0x7c, 0x6c, 0x4c, 0x33, 0xa0, 0xc3, 0xd8, 0x4a,
+	0x2e, 0x1e, 0x00, 0xbb, 0x06, 0x08, 0xe3, 0xd4, 0xfe, 0x15, 0x5f, 0x15, 0x8b, 0xf2, 0xe8, 0xf2,
+	0x45, 0xb5, 0x6b, 0xcb, 0x7b, 0xd5, 0xe3, 0xbb, 0x7b, 0x03, 0xb6, 0x1e, 0x8b, 0x3c, 0x44, 0x7d,
+	0x84, 0x7d, 0x82, 0x93, 0xd9, 0xb8, 0xfa, 0x67, 0xf4, 0x24, 0x8c, 0x77, 0x74, 0xf9, 0xbc, 0xda,
+	0xe7, 0x70, 0x95, 0xcc, 0x13, 0xab, 0x99, 0x24, 0xb0, 0xfe, 0x9d, 0xc1, 0xd3, 0x9d, 0x99, 0xed,
+	0x48, 0xda, 0xa2, 0xf7, 0x0e, 0x8d, 0x49, 0x3e, 0xe7, 0x22, 0x0a, 0xf6, 0x11, 0x96, 0xff, 0x34,
+	0xff, 0x7a, 0xff, 0x8f, 0xff, 0x2d, 0x1a, 0x66, 0x13, 0xa1, 0xc2, 0xd9, 0x37, 0x58, 0x86, 0x79,
+	0x18, 0x2c, 0x75, 0x33, 0x60, 0xfa, 0x26, 0xdc, 0xd9, 0x2b, 0x58, 0x29, 0x6d, 0xd1, 0x38, 0x45,
+	0xba, 0x1e, 0x49, 0x69, 0x97, 0xcc, 0x3c, 0xbe, 0xc7, 0x5b, 0x4f, 0x19, 0x87, 0xc3, 0x96, 0xb4,
+	0x43, 0xed, 0xf8, 0x2a, 0x24, 0xcc, 0xf2, 0x4a, 0xc2, 0x79, 0x4b, 0xc3, 0xde, 0xfe, 0xae, 0x9e,
+	0x6c, 0xc3, 0x6e, 0x06, 0x7b, 0xed, 0xd7, 0x37, 0x52, 0xb9, 0xbb, 0xe9, 0xc6, 0x87, 0x37, 0x92,
+	0xfa, 0x46, 0xcb, 0x87, 0x65, 0x0c, 0x97, 0xf6, 0x42, 0xa2, 0xbe, 0x90, 0x94, 0x56, 0xfa, 0x6d,
+	0x3c, 0x6a, 0x49, 0x7f, 0x03, 0x00, 0x00, 0xff, 0xff, 0xf7, 0x15, 0x40, 0xc5, 0xfe, 0x02, 0x00,
+	0x00,
+}

vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.pb.golden

@@ -0,0 +1,83 @@
+// Code generated by protoc-gen-go.
+// source: google/protobuf/compiler/plugin.proto
+// DO NOT EDIT!
+
+package google_protobuf_compiler
+
+import proto "github.com/golang/protobuf/proto"
+import "math"
+import google_protobuf "github.com/golang/protobuf/protoc-gen-go/descriptor"
+
+// Reference proto and math imports to suppress error if they are not otherwise used.
+var _ = proto.GetString
+var _ = math.Inf
+
+type CodeGeneratorRequest struct {
+	FileToGenerate   []string                               `protobuf:"bytes,1,rep,name=file_to_generate" json:"file_to_generate,omitempty"`
+	Parameter        *string                                `protobuf:"bytes,2,opt,name=parameter" json:"parameter,omitempty"`
+	ProtoFile        []*google_protobuf.FileDescriptorProto `protobuf:"bytes,15,rep,name=proto_file" json:"proto_file,omitempty"`
+	XXX_unrecognized []byte                                 `json:"-"`
+}
+
+func (this *CodeGeneratorRequest) Reset()         { *this = CodeGeneratorRequest{} }
+func (this *CodeGeneratorRequest) String() string { return proto.CompactTextString(this) }
+func (*CodeGeneratorRequest) ProtoMessage()       {}
+
+func (this *CodeGeneratorRequest) GetParameter() string {
+	if this != nil && this.Parameter != nil {
+		return *this.Parameter
+	}
+	return ""
+}
+
+type CodeGeneratorResponse struct {
+	Error            *string                       `protobuf:"bytes,1,opt,name=error" json:"error,omitempty"`
+	File             []*CodeGeneratorResponse_File `protobuf:"bytes,15,rep,name=file" json:"file,omitempty"`
+	XXX_unrecognized []byte                        `json:"-"`
+}
+
+func (this *CodeGeneratorResponse) Reset()         { *this = CodeGeneratorResponse{} }
+func (this *CodeGeneratorResponse) String() string { return proto.CompactTextString(this) }
+func (*CodeGeneratorResponse) ProtoMessage()       {}
+
+func (this *CodeGeneratorResponse) GetError() string {
+	if this != nil && this.Error != nil {
+		return *this.Error
+	}
+	return ""
+}
+
+type CodeGeneratorResponse_File struct {
+	Name             *string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"`
+	InsertionPoint   *string `protobuf:"bytes,2,opt,name=insertion_point" json:"insertion_point,omitempty"`
+	Content          *string `protobuf:"bytes,15,opt,name=content" json:"content,omitempty"`
+	XXX_unrecognized []byte  `json:"-"`
+}
+
+func (this *CodeGeneratorResponse_File) Reset()         { *this = CodeGeneratorResponse_File{} }
+func (this *CodeGeneratorResponse_File) String() string { return proto.CompactTextString(this) }
+func (*CodeGeneratorResponse_File) ProtoMessage()       {}
+
+func (this *CodeGeneratorResponse_File) GetName() string {
+	if this != nil && this.Name != nil {
+		return *this.Name
+	}
+	return ""
+}
+
+func (this *CodeGeneratorResponse_File) GetInsertionPoint() string {
+	if this != nil && this.InsertionPoint != nil {
+		return *this.InsertionPoint
+	}
+	return ""
+}
+
+func (this *CodeGeneratorResponse_File) GetContent() string {
+	if this != nil && this.Content != nil {
+		return *this.Content
+	}
+	return ""
+}
+
+func init() {
+}

vendor/github.com/golang/protobuf/protoc-gen-go/plugin/plugin.proto

@@ -0,0 +1,167 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Author: kenton@google.com (Kenton Varda)
+//
+// WARNING:  The plugin interface is currently EXPERIMENTAL and is subject to
+//   change.
+//
+// protoc (aka the Protocol Compiler) can be extended via plugins.  A plugin is
+// just a program that reads a CodeGeneratorRequest from stdin and writes a
+// CodeGeneratorResponse to stdout.
+//
+// Plugins written using C++ can use google/protobuf/compiler/plugin.h instead
+// of dealing with the raw protocol defined here.
+//
+// A plugin executable needs only to be placed somewhere in the path.  The
+// plugin should be named "protoc-gen-$NAME", and will then be used when the
+// flag "--${NAME}_out" is passed to protoc.
+
+syntax = "proto2";
+package google.protobuf.compiler;
+option java_package = "com.google.protobuf.compiler";
+option java_outer_classname = "PluginProtos";
+
+option go_package = "github.com/golang/protobuf/protoc-gen-go/plugin;plugin_go";
+
+import "google/protobuf/descriptor.proto";
+
+// The version number of protocol compiler.
+message Version {
+  optional int32 major = 1;
+  optional int32 minor = 2;
+  optional int32 patch = 3;
+  // A suffix for alpha, beta or rc release, e.g., "alpha-1", "rc2". It should
+  // be empty for mainline stable releases.
+  optional string suffix = 4;
+}
+
+// An encoded CodeGeneratorRequest is written to the plugin's stdin.
+message CodeGeneratorRequest {
+  // The .proto files that were explicitly listed on the command-line.  The
+  // code generator should generate code only for these files.  Each file's
+  // descriptor will be included in proto_file, below.
+  repeated string file_to_generate = 1;
+
+  // The generator parameter passed on the command-line.
+  optional string parameter = 2;
+
+  // FileDescriptorProtos for all files in files_to_generate and everything
+  // they import.  The files will appear in topological order, so each file
+  // appears before any file that imports it.
+  //
+  // protoc guarantees that all proto_files will be written after
+  // the fields above, even though this is not technically guaranteed by the
+  // protobuf wire format.  This theoretically could allow a plugin to stream
+  // in the FileDescriptorProtos and handle them one by one rather than read
+  // the entire set into memory at once.  However, as of this writing, this
+  // is not similarly optimized on protoc's end -- it will store all fields in
+  // memory at once before sending them to the plugin.
+  //
+  // Type names of fields and extensions in the FileDescriptorProto are always
+  // fully qualified.
+  repeated FileDescriptorProto proto_file = 15;
+
+  // The version number of protocol compiler.
+  optional Version compiler_version = 3;
+
+}
+
+// The plugin writes an encoded CodeGeneratorResponse to stdout.
+message CodeGeneratorResponse {
+  // Error message.  If non-empty, code generation failed.  The plugin process
+  // should exit with status code zero even if it reports an error in this way.
+  //
+  // This should be used to indicate errors in .proto files which prevent the
+  // code generator from generating correct code.  Errors which indicate a
+  // problem in protoc itself -- such as the input CodeGeneratorRequest being
+  // unparseable -- should be reported by writing a message to stderr and
+  // exiting with a non-zero status code.
+  optional string error = 1;
+
+  // Represents a single generated file.
+  message File {
+    // The file name, relative to the output directory.  The name must not
+    // contain "." or ".." components and must be relative, not be absolute (so,
+    // the file cannot lie outside the output directory).  "/" must be used as
+    // the path separator, not "\".
+    //
+    // If the name is omitted, the content will be appended to the previous
+    // file.  This allows the generator to break large files into small chunks,
+    // and allows the generated text to be streamed back to protoc so that large
+    // files need not reside completely in memory at one time.  Note that as of
+    // this writing protoc does not optimize for this -- it will read the entire
+    // CodeGeneratorResponse before writing files to disk.
+    optional string name = 1;
+
+    // If non-empty, indicates that the named file should already exist, and the
+    // content here is to be inserted into that file at a defined insertion
+    // point.  This feature allows a code generator to extend the output
+    // produced by another code generator.  The original generator may provide
+    // insertion points by placing special annotations in the file that look
+    // like:
+    //   @@protoc_insertion_point(NAME)
+    // The annotation can have arbitrary text before and after it on the line,
+    // which allows it to be placed in a comment.  NAME should be replaced with
+    // an identifier naming the point -- this is what other generators will use
+    // as the insertion_point.  Code inserted at this point will be placed
+    // immediately above the line containing the insertion point (thus multiple
+    // insertions to the same point will come out in the order they were added).
+    // The double-@ is intended to make it unlikely that the generated code
+    // could contain things that look like insertion points by accident.
+    //
+    // For example, the C++ code generator places the following line in the
+    // .pb.h files that it generates:
+    //   // @@protoc_insertion_point(namespace_scope)
+    // This line appears within the scope of the file's package namespace, but
+    // outside of any particular class.  Another plugin can then specify the
+    // insertion_point "namespace_scope" to generate additional classes or
+    // other declarations that should be placed in this scope.
+    //
+    // Note that if the line containing the insertion point begins with
+    // whitespace, the same whitespace will be added to every line of the
+    // inserted text.  This is useful for languages like Python, where
+    // indentation matters.  In these languages, the insertion point comment
+    // should be indented the same amount as any inserted code will need to be
+    // in order to work correctly in that context.
+    //
+    // The code generator that generates the initial file and the one which
+    // inserts into it must both run as part of a single invocation of protoc.
+    // Code generators are executed in the order in which they appear on the
+    // command line.
+    //
+    // If |insertion_point| is present, |name| must also be present.
+    optional string insertion_point = 2;
+
+    // The file contents.
+    optional string content = 15;
+  }
+  repeated File file = 15;
+}

vendor/github.com/golang/protobuf/ptypes/any.go

@@ -0,0 +1,141 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2016 The Go Authors.  All rights reserved.
+// https://github.com/golang/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package ptypes
+
+// This file implements functions to marshal proto.Message to/from
+// google.protobuf.Any message.
+
+import (
+	"fmt"
+	"reflect"
+	"strings"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes/any"
+)
+
+const googleApis = "type.googleapis.com/"
+
+// AnyMessageName returns the name of the message contained in a google.protobuf.Any message.
+//
+// Note that regular type assertions should be done using the Is
+// function. AnyMessageName is provided for less common use cases like filtering a
+// sequence of Any messages based on a set of allowed message type names.
+func AnyMessageName(any *any.Any) (string, error) {
+	if any == nil {
+		return "", fmt.Errorf("message is nil")
+	}
+	slash := strings.LastIndex(any.TypeUrl, "/")
+	if slash < 0 {
+		return "", fmt.Errorf("message type url %q is invalid", any.TypeUrl)
+	}
+	return any.TypeUrl[slash+1:], nil
+}
+
+// MarshalAny takes the protocol buffer and encodes it into google.protobuf.Any.
+func MarshalAny(pb proto.Message) (*any.Any, error) {
+	value, err := proto.Marshal(pb)
+	if err != nil {
+		return nil, err
+	}
+	return &any.Any{TypeUrl: googleApis + proto.MessageName(pb), Value: value}, nil
+}
+
+// DynamicAny is a value that can be passed to UnmarshalAny to automatically
+// allocate a proto.Message for the type specified in a google.protobuf.Any
+// message. The allocated message is stored in the embedded proto.Message.
+//
+// Example:
+//
+//   var x ptypes.DynamicAny
+//   if err := ptypes.UnmarshalAny(a, &x); err != nil { ... }
+//   fmt.Printf("unmarshaled message: %v", x.Message)
+type DynamicAny struct {
+	proto.Message
+}
+
+// Empty returns a new proto.Message of the type specified in a
+// google.protobuf.Any message. It returns an error if corresponding message
+// type isn't linked in.
+func Empty(any *any.Any) (proto.Message, error) {
+	aname, err := AnyMessageName(any)
+	if err != nil {
+		return nil, err
+	}
+
+	t := proto.MessageType(aname)
+	if t == nil {
+		return nil, fmt.Errorf("any: message type %q isn't linked in", aname)
+	}
+	return reflect.New(t.Elem()).Interface().(proto.Message), nil
+}
+
+// UnmarshalAny parses the protocol buffer representation in a google.protobuf.Any
+// message and places the decoded result in pb. It returns an error if type of
+// contents of Any message does not match type of pb message.
+//
+// pb can be a proto.Message, or a *DynamicAny.
+func UnmarshalAny(any *any.Any, pb proto.Message) error {
+	if d, ok := pb.(*DynamicAny); ok {
+		if d.Message == nil {
+			var err error
+			d.Message, err = Empty(any)
+			if err != nil {
+				return err
+			}
+		}
+		return UnmarshalAny(any, d.Message)
+	}
+
+	aname, err := AnyMessageName(any)
+	if err != nil {
+		return err
+	}
+
+	mname := proto.MessageName(pb)
+	if aname != mname {
+		return fmt.Errorf("mismatched message type: got %q want %q", aname, mname)
+	}
+	return proto.Unmarshal(any.Value, pb)
+}
+
+// Is returns true if any value contains a given message type.
+func Is(any *any.Any, pb proto.Message) bool {
+	// The following is equivalent to AnyMessageName(any) == proto.MessageName(pb),
+	// but it avoids scanning TypeUrl for the slash.
+	if any == nil {
+		return false
+	}
+	name := proto.MessageName(pb)
+	prefix := len(any.TypeUrl) - len(name)
+	return prefix >= 1 && any.TypeUrl[prefix-1] == '/' && any.TypeUrl[prefix:] == name
+}

vendor/github.com/golang/protobuf/ptypes/any/any.pb.go

@@ -0,0 +1,191 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/protobuf/any.proto
+
+package any // import "github.com/golang/protobuf/ptypes/any"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// `Any` contains an arbitrary serialized protocol buffer message along with a
+// URL that describes the type of the serialized message.
+//
+// Protobuf library provides support to pack/unpack Any values in the form
+// of utility functions or additional generated methods of the Any type.
+//
+// Example 1: Pack and unpack a message in C++.
+//
+//     Foo foo = ...;
+//     Any any;
+//     any.PackFrom(foo);
+//     ...
+//     if (any.UnpackTo(&foo)) {
+//       ...
+//     }
+//
+// Example 2: Pack and unpack a message in Java.
+//
+//     Foo foo = ...;
+//     Any any = Any.pack(foo);
+//     ...
+//     if (any.is(Foo.class)) {
+//       foo = any.unpack(Foo.class);
+//     }
+//
+//  Example 3: Pack and unpack a message in Python.
+//
+//     foo = Foo(...)
+//     any = Any()
+//     any.Pack(foo)
+//     ...
+//     if any.Is(Foo.DESCRIPTOR):
+//       any.Unpack(foo)
+//       ...
+//
+//  Example 4: Pack and unpack a message in Go
+//
+//      foo := &pb.Foo{...}
+//      any, err := ptypes.MarshalAny(foo)
+//      ...
+//      foo := &pb.Foo{}
+//      if err := ptypes.UnmarshalAny(any, foo); err != nil {
+//        ...
+//      }
+//
+// The pack methods provided by protobuf library will by default use
+// 'type.googleapis.com/full.type.name' as the type URL and the unpack
+// methods only use the fully qualified type name after the last '/'
+// in the type URL, for example "foo.bar.com/x/y.z" will yield type
+// name "y.z".
+//
+//
+// JSON
+// ====
+// The JSON representation of an `Any` value uses the regular
+// representation of the deserialized, embedded message, with an
+// additional field `@type` which contains the type URL. Example:
+//
+//     package google.profile;
+//     message Person {
+//       string first_name = 1;
+//       string last_name = 2;
+//     }
+//
+//     {
+//       "@type": "type.googleapis.com/google.profile.Person",
+//       "firstName": <string>,
+//       "lastName": <string>
+//     }
+//
+// If the embedded message type is well-known and has a custom JSON
+// representation, that representation will be embedded adding a field
+// `value` which holds the custom JSON in addition to the `@type`
+// field. Example (for message [google.protobuf.Duration][]):
+//
+//     {
+//       "@type": "type.googleapis.com/google.protobuf.Duration",
+//       "value": "1.212s"
+//     }
+//
+type Any struct {
+	// A URL/resource name whose content describes the type of the
+	// serialized protocol buffer message.
+	//
+	// For URLs which use the scheme `http`, `https`, or no scheme, the
+	// following restrictions and interpretations apply:
+	//
+	// * If no scheme is provided, `https` is assumed.
+	// * The last segment of the URL's path must represent the fully
+	//   qualified name of the type (as in `path/google.protobuf.Duration`).
+	//   The name should be in a canonical form (e.g., leading "." is
+	//   not accepted).
+	// * An HTTP GET on the URL must yield a [google.protobuf.Type][]
+	//   value in binary format, or produce an error.
+	// * Applications are allowed to cache lookup results based on the
+	//   URL, or have them precompiled into a binary to avoid any
+	//   lookup. Therefore, binary compatibility needs to be preserved
+	//   on changes to types. (Use versioned type names to manage
+	//   breaking changes.)
+	//
+	// Schemes other than `http`, `https` (or the empty scheme) might be
+	// used with implementation specific semantics.
+	//
+	TypeUrl string `protobuf:"bytes,1,opt,name=type_url,json=typeUrl,proto3" json:"type_url,omitempty"`
+	// Must be a valid serialized protocol buffer of the above specified type.
+	Value                []byte   `protobuf:"bytes,2,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Any) Reset()         { *m = Any{} }
+func (m *Any) String() string { return proto.CompactTextString(m) }
+func (*Any) ProtoMessage()    {}
+func (*Any) Descriptor() ([]byte, []int) {
+	return fileDescriptor_any_744b9ca530f228db, []int{0}
+}
+func (*Any) XXX_WellKnownType() string { return "Any" }
+func (m *Any) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Any.Unmarshal(m, b)
+}
+func (m *Any) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Any.Marshal(b, m, deterministic)
+}
+func (dst *Any) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Any.Merge(dst, src)
+}
+func (m *Any) XXX_Size() int {
+	return xxx_messageInfo_Any.Size(m)
+}
+func (m *Any) XXX_DiscardUnknown() {
+	xxx_messageInfo_Any.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Any proto.InternalMessageInfo
+
+func (m *Any) GetTypeUrl() string {
+	if m != nil {
+		return m.TypeUrl
+	}
+	return ""
+}
+
+func (m *Any) GetValue() []byte {
+	if m != nil {
+		return m.Value
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Any)(nil), "google.protobuf.Any")
+}
+
+func init() { proto.RegisterFile("google/protobuf/any.proto", fileDescriptor_any_744b9ca530f228db) }
+
+var fileDescriptor_any_744b9ca530f228db = []byte{
+	// 185 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x4c, 0xcf, 0xcf, 0x4f,
+	0xcf, 0x49, 0xd5, 0x2f, 0x28, 0xca, 0x2f, 0xc9, 0x4f, 0x2a, 0x4d, 0xd3, 0x4f, 0xcc, 0xab, 0xd4,
+	0x03, 0x73, 0x84, 0xf8, 0x21, 0x52, 0x7a, 0x30, 0x29, 0x25, 0x33, 0x2e, 0x66, 0xc7, 0xbc, 0x4a,
+	0x21, 0x49, 0x2e, 0x8e, 0x92, 0xca, 0x82, 0xd4, 0xf8, 0xd2, 0xa2, 0x1c, 0x09, 0x46, 0x05, 0x46,
+	0x0d, 0xce, 0x20, 0x76, 0x10, 0x3f, 0xb4, 0x28, 0x47, 0x48, 0x84, 0x8b, 0xb5, 0x2c, 0x31, 0xa7,
+	0x34, 0x55, 0x82, 0x49, 0x81, 0x51, 0x83, 0x27, 0x08, 0xc2, 0x71, 0xca, 0xe7, 0x12, 0x4e, 0xce,
+	0xcf, 0xd5, 0x43, 0x33, 0xce, 0x89, 0xc3, 0x31, 0xaf, 0x32, 0x00, 0xc4, 0x09, 0x60, 0x8c, 0x52,
+	0x4d, 0xcf, 0x2c, 0xc9, 0x28, 0x4d, 0xd2, 0x4b, 0xce, 0xcf, 0xd5, 0x4f, 0xcf, 0xcf, 0x49, 0xcc,
+	0x4b, 0x47, 0xb8, 0xa8, 0x00, 0x64, 0x7a, 0x31, 0xc8, 0x61, 0x8b, 0x98, 0x98, 0xdd, 0x03, 0x9c,
+	0x56, 0x31, 0xc9, 0xb9, 0x43, 0x8c, 0x0a, 0x80, 0x2a, 0xd1, 0x0b, 0x4f, 0xcd, 0xc9, 0xf1, 0xce,
+	0xcb, 0x2f, 0xcf, 0x0b, 0x01, 0x29, 0x4d, 0x62, 0x03, 0xeb, 0x35, 0x06, 0x04, 0x00, 0x00, 0xff,
+	0xff, 0x13, 0xf8, 0xe8, 0x42, 0xdd, 0x00, 0x00, 0x00,
+}

vendor/github.com/golang/protobuf/ptypes/any/any.proto

@@ -0,0 +1,149 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+package google.protobuf;
+
+option csharp_namespace = "Google.Protobuf.WellKnownTypes";
+option go_package = "github.com/golang/protobuf/ptypes/any";
+option java_package = "com.google.protobuf";
+option java_outer_classname = "AnyProto";
+option java_multiple_files = true;
+option objc_class_prefix = "GPB";
+
+// `Any` contains an arbitrary serialized protocol buffer message along with a
+// URL that describes the type of the serialized message.
+//
+// Protobuf library provides support to pack/unpack Any values in the form
+// of utility functions or additional generated methods of the Any type.
+//
+// Example 1: Pack and unpack a message in C++.
+//
+//     Foo foo = ...;
+//     Any any;
+//     any.PackFrom(foo);
+//     ...
+//     if (any.UnpackTo(&foo)) {
+//       ...
+//     }
+//
+// Example 2: Pack and unpack a message in Java.
+//
+//     Foo foo = ...;
+//     Any any = Any.pack(foo);
+//     ...
+//     if (any.is(Foo.class)) {
+//       foo = any.unpack(Foo.class);
+//     }
+//
+//  Example 3: Pack and unpack a message in Python.
+//
+//     foo = Foo(...)
+//     any = Any()
+//     any.Pack(foo)
+//     ...
+//     if any.Is(Foo.DESCRIPTOR):
+//       any.Unpack(foo)
+//       ...
+//
+//  Example 4: Pack and unpack a message in Go
+//
+//      foo := &pb.Foo{...}
+//      any, err := ptypes.MarshalAny(foo)
+//      ...
+//      foo := &pb.Foo{}
+//      if err := ptypes.UnmarshalAny(any, foo); err != nil {
+//        ...
+//      }
+//
+// The pack methods provided by protobuf library will by default use
+// 'type.googleapis.com/full.type.name' as the type URL and the unpack
+// methods only use the fully qualified type name after the last '/'
+// in the type URL, for example "foo.bar.com/x/y.z" will yield type
+// name "y.z".
+//
+//
+// JSON
+// ====
+// The JSON representation of an `Any` value uses the regular
+// representation of the deserialized, embedded message, with an
+// additional field `@type` which contains the type URL. Example:
+//
+//     package google.profile;
+//     message Person {
+//       string first_name = 1;
+//       string last_name = 2;
+//     }
+//
+//     {
+//       "@type": "type.googleapis.com/google.profile.Person",
+//       "firstName": <string>,
+//       "lastName": <string>
+//     }
+//
+// If the embedded message type is well-known and has a custom JSON
+// representation, that representation will be embedded adding a field
+// `value` which holds the custom JSON in addition to the `@type`
+// field. Example (for message [google.protobuf.Duration][]):
+//
+//     {
+//       "@type": "type.googleapis.com/google.protobuf.Duration",
+//       "value": "1.212s"
+//     }
+//
+message Any {
+  // A URL/resource name whose content describes the type of the
+  // serialized protocol buffer message.
+  //
+  // For URLs which use the scheme `http`, `https`, or no scheme, the
+  // following restrictions and interpretations apply:
+  //
+  // * If no scheme is provided, `https` is assumed.
+  // * The last segment of the URL's path must represent the fully
+  //   qualified name of the type (as in `path/google.protobuf.Duration`).
+  //   The name should be in a canonical form (e.g., leading "." is
+  //   not accepted).
+  // * An HTTP GET on the URL must yield a [google.protobuf.Type][]
+  //   value in binary format, or produce an error.
+  // * Applications are allowed to cache lookup results based on the
+  //   URL, or have them precompiled into a binary to avoid any
+  //   lookup. Therefore, binary compatibility needs to be preserved
+  //   on changes to types. (Use versioned type names to manage
+  //   breaking changes.)
+  //
+  // Schemes other than `http`, `https` (or the empty scheme) might be
+  // used with implementation specific semantics.
+  //
+  string type_url = 1;
+
+  // Must be a valid serialized protocol buffer of the above specified type.
+  bytes value = 2;
+}

vendor/github.com/golang/protobuf/ptypes/doc.go

@@ -0,0 +1,35 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2016 The Go Authors.  All rights reserved.
+// https://github.com/golang/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/*
+Package ptypes contains code for interacting with well-known types.
+*/
+package ptypes

vendor/github.com/golang/protobuf/ptypes/duration.go

@@ -0,0 +1,102 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2016 The Go Authors.  All rights reserved.
+// https://github.com/golang/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package ptypes
+
+// This file implements conversions between google.protobuf.Duration
+// and time.Duration.
+
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	durpb "github.com/golang/protobuf/ptypes/duration"
+)
+
+const (
+	// Range of a durpb.Duration in seconds, as specified in
+	// google/protobuf/duration.proto. This is about 10,000 years in seconds.
+	maxSeconds = int64(10000 * 365.25 * 24 * 60 * 60)
+	minSeconds = -maxSeconds
+)
+
+// validateDuration determines whether the durpb.Duration is valid according to the
+// definition in google/protobuf/duration.proto. A valid durpb.Duration
+// may still be too large to fit into a time.Duration (the range of durpb.Duration
+// is about 10,000 years, and the range of time.Duration is about 290).
+func validateDuration(d *durpb.Duration) error {
+	if d == nil {
+		return errors.New("duration: nil Duration")
+	}
+	if d.Seconds < minSeconds || d.Seconds > maxSeconds {
+		return fmt.Errorf("duration: %v: seconds out of range", d)
+	}
+	if d.Nanos <= -1e9 || d.Nanos >= 1e9 {
+		return fmt.Errorf("duration: %v: nanos out of range", d)
+	}
+	// Seconds and Nanos must have the same sign, unless d.Nanos is zero.
+	if (d.Seconds < 0 && d.Nanos > 0) || (d.Seconds > 0 && d.Nanos < 0) {
+		return fmt.Errorf("duration: %v: seconds and nanos have different signs", d)
+	}
+	return nil
+}
+
+// Duration converts a durpb.Duration to a time.Duration. Duration
+// returns an error if the durpb.Duration is invalid or is too large to be
+// represented in a time.Duration.
+func Duration(p *durpb.Duration) (time.Duration, error) {
+	if err := validateDuration(p); err != nil {
+		return 0, err
+	}
+	d := time.Duration(p.Seconds) * time.Second
+	if int64(d/time.Second) != p.Seconds {
+		return 0, fmt.Errorf("duration: %v is out of range for time.Duration", p)
+	}
+	if p.Nanos != 0 {
+		d += time.Duration(p.Nanos)
+		if (d < 0) != (p.Nanos < 0) {
+			return 0, fmt.Errorf("duration: %v is out of range for time.Duration", p)
+		}
+	}
+	return d, nil
+}
+
+// DurationProto converts a time.Duration to a durpb.Duration.
+func DurationProto(d time.Duration) *durpb.Duration {
+	nanos := d.Nanoseconds()
+	secs := nanos / 1e9
+	nanos -= secs * 1e9
+	return &durpb.Duration{
+		Seconds: secs,
+		Nanos:   int32(nanos),
+	}
+}

vendor/github.com/golang/protobuf/ptypes/duration/duration.pb.go

@@ -0,0 +1,159 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/protobuf/duration.proto
+
+package duration // import "github.com/golang/protobuf/ptypes/duration"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// A Duration represents a signed, fixed-length span of time represented
+// as a count of seconds and fractions of seconds at nanosecond
+// resolution. It is independent of any calendar and concepts like "day"
+// or "month". It is related to Timestamp in that the difference between
+// two Timestamp values is a Duration and it can be added or subtracted
+// from a Timestamp. Range is approximately +-10,000 years.
+//
+// # Examples
+//
+// Example 1: Compute Duration from two Timestamps in pseudo code.
+//
+//     Timestamp start = ...;
+//     Timestamp end = ...;
+//     Duration duration = ...;
+//
+//     duration.seconds = end.seconds - start.seconds;
+//     duration.nanos = end.nanos - start.nanos;
+//
+//     if (duration.seconds < 0 && duration.nanos > 0) {
+//       duration.seconds += 1;
+//       duration.nanos -= 1000000000;
+//     } else if (durations.seconds > 0 && duration.nanos < 0) {
+//       duration.seconds -= 1;
+//       duration.nanos += 1000000000;
+//     }
+//
+// Example 2: Compute Timestamp from Timestamp + Duration in pseudo code.
+//
+//     Timestamp start = ...;
+//     Duration duration = ...;
+//     Timestamp end = ...;
+//
+//     end.seconds = start.seconds + duration.seconds;
+//     end.nanos = start.nanos + duration.nanos;
+//
+//     if (end.nanos < 0) {
+//       end.seconds -= 1;
+//       end.nanos += 1000000000;
+//     } else if (end.nanos >= 1000000000) {
+//       end.seconds += 1;
+//       end.nanos -= 1000000000;
+//     }
+//
+// Example 3: Compute Duration from datetime.timedelta in Python.
+//
+//     td = datetime.timedelta(days=3, minutes=10)
+//     duration = Duration()
+//     duration.FromTimedelta(td)
+//
+// # JSON Mapping
+//
+// In JSON format, the Duration type is encoded as a string rather than an
+// object, where the string ends in the suffix "s" (indicating seconds) and
+// is preceded by the number of seconds, with nanoseconds expressed as
+// fractional seconds. For example, 3 seconds with 0 nanoseconds should be
+// encoded in JSON format as "3s", while 3 seconds and 1 nanosecond should
+// be expressed in JSON format as "3.000000001s", and 3 seconds and 1
+// microsecond should be expressed in JSON format as "3.000001s".
+//
+//
+type Duration struct {
+	// Signed seconds of the span of time. Must be from -315,576,000,000
+	// to +315,576,000,000 inclusive. Note: these bounds are computed from:
+	// 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
+	Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"`
+	// Signed fractions of a second at nanosecond resolution of the span
+	// of time. Durations less than one second are represented with a 0
+	// `seconds` field and a positive or negative `nanos` field. For durations
+	// of one second or more, a non-zero value for the `nanos` field must be
+	// of the same sign as the `seconds` field. Must be from -999,999,999
+	// to +999,999,999 inclusive.
+	Nanos                int32    `protobuf:"varint,2,opt,name=nanos,proto3" json:"nanos,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Duration) Reset()         { *m = Duration{} }
+func (m *Duration) String() string { return proto.CompactTextString(m) }
+func (*Duration) ProtoMessage()    {}
+func (*Duration) Descriptor() ([]byte, []int) {
+	return fileDescriptor_duration_e7d612259e3f0613, []int{0}
+}
+func (*Duration) XXX_WellKnownType() string { return "Duration" }
+func (m *Duration) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Duration.Unmarshal(m, b)
+}
+func (m *Duration) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Duration.Marshal(b, m, deterministic)
+}
+func (dst *Duration) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Duration.Merge(dst, src)
+}
+func (m *Duration) XXX_Size() int {
+	return xxx_messageInfo_Duration.Size(m)
+}
+func (m *Duration) XXX_DiscardUnknown() {
+	xxx_messageInfo_Duration.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Duration proto.InternalMessageInfo
+
+func (m *Duration) GetSeconds() int64 {
+	if m != nil {
+		return m.Seconds
+	}
+	return 0
+}
+
+func (m *Duration) GetNanos() int32 {
+	if m != nil {
+		return m.Nanos
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*Duration)(nil), "google.protobuf.Duration")
+}
+
+func init() {
+	proto.RegisterFile("google/protobuf/duration.proto", fileDescriptor_duration_e7d612259e3f0613)
+}
+
+var fileDescriptor_duration_e7d612259e3f0613 = []byte{
+	// 190 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x4b, 0xcf, 0xcf, 0x4f,
+	0xcf, 0x49, 0xd5, 0x2f, 0x28, 0xca, 0x2f, 0xc9, 0x4f, 0x2a, 0x4d, 0xd3, 0x4f, 0x29, 0x2d, 0x4a,
+	0x2c, 0xc9, 0xcc, 0xcf, 0xd3, 0x03, 0x8b, 0x08, 0xf1, 0x43, 0xe4, 0xf5, 0x60, 0xf2, 0x4a, 0x56,
+	0x5c, 0x1c, 0x2e, 0x50, 0x25, 0x42, 0x12, 0x5c, 0xec, 0xc5, 0xa9, 0xc9, 0xf9, 0x79, 0x29, 0xc5,
+	0x12, 0x8c, 0x0a, 0x8c, 0x1a, 0xcc, 0x41, 0x30, 0xae, 0x90, 0x08, 0x17, 0x6b, 0x5e, 0x62, 0x5e,
+	0x7e, 0xb1, 0x04, 0x93, 0x02, 0xa3, 0x06, 0x6b, 0x10, 0x84, 0xe3, 0x54, 0xc3, 0x25, 0x9c, 0x9c,
+	0x9f, 0xab, 0x87, 0x66, 0xa4, 0x13, 0x2f, 0xcc, 0xc0, 0x00, 0x90, 0x48, 0x00, 0x63, 0x94, 0x56,
+	0x7a, 0x66, 0x49, 0x46, 0x69, 0x92, 0x5e, 0x72, 0x7e, 0xae, 0x7e, 0x7a, 0x7e, 0x4e, 0x62, 0x5e,
+	0x3a, 0xc2, 0x7d, 0x05, 0x25, 0x95, 0x05, 0xa9, 0xc5, 0x70, 0x67, 0xfe, 0x60, 0x64, 0x5c, 0xc4,
+	0xc4, 0xec, 0x1e, 0xe0, 0xb4, 0x8a, 0x49, 0xce, 0x1d, 0x62, 0x6e, 0x00, 0x54, 0xa9, 0x5e, 0x78,
+	0x6a, 0x4e, 0x8e, 0x77, 0x5e, 0x7e, 0x79, 0x5e, 0x08, 0x48, 0x4b, 0x12, 0x1b, 0xd8, 0x0c, 0x63,
+	0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0xdc, 0x84, 0x30, 0xff, 0xf3, 0x00, 0x00, 0x00,
+}

vendor/github.com/golang/protobuf/ptypes/duration/duration.proto

@@ -0,0 +1,117 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+package google.protobuf;
+
+option csharp_namespace = "Google.Protobuf.WellKnownTypes";
+option cc_enable_arenas = true;
+option go_package = "github.com/golang/protobuf/ptypes/duration";
+option java_package = "com.google.protobuf";
+option java_outer_classname = "DurationProto";
+option java_multiple_files = true;
+option objc_class_prefix = "GPB";
+
+// A Duration represents a signed, fixed-length span of time represented
+// as a count of seconds and fractions of seconds at nanosecond
+// resolution. It is independent of any calendar and concepts like "day"
+// or "month". It is related to Timestamp in that the difference between
+// two Timestamp values is a Duration and it can be added or subtracted
+// from a Timestamp. Range is approximately +-10,000 years.
+//
+// # Examples
+//
+// Example 1: Compute Duration from two Timestamps in pseudo code.
+//
+//     Timestamp start = ...;
+//     Timestamp end = ...;
+//     Duration duration = ...;
+//
+//     duration.seconds = end.seconds - start.seconds;
+//     duration.nanos = end.nanos - start.nanos;
+//
+//     if (duration.seconds < 0 && duration.nanos > 0) {
+//       duration.seconds += 1;
+//       duration.nanos -= 1000000000;
+//     } else if (durations.seconds > 0 && duration.nanos < 0) {
+//       duration.seconds -= 1;
+//       duration.nanos += 1000000000;
+//     }
+//
+// Example 2: Compute Timestamp from Timestamp + Duration in pseudo code.
+//
+//     Timestamp start = ...;
+//     Duration duration = ...;
+//     Timestamp end = ...;
+//
+//     end.seconds = start.seconds + duration.seconds;
+//     end.nanos = start.nanos + duration.nanos;
+//
+//     if (end.nanos < 0) {
+//       end.seconds -= 1;
+//       end.nanos += 1000000000;
+//     } else if (end.nanos >= 1000000000) {
+//       end.seconds += 1;
+//       end.nanos -= 1000000000;
+//     }
+//
+// Example 3: Compute Duration from datetime.timedelta in Python.
+//
+//     td = datetime.timedelta(days=3, minutes=10)
+//     duration = Duration()
+//     duration.FromTimedelta(td)
+//
+// # JSON Mapping
+//
+// In JSON format, the Duration type is encoded as a string rather than an
+// object, where the string ends in the suffix "s" (indicating seconds) and
+// is preceded by the number of seconds, with nanoseconds expressed as
+// fractional seconds. For example, 3 seconds with 0 nanoseconds should be
+// encoded in JSON format as "3s", while 3 seconds and 1 nanosecond should
+// be expressed in JSON format as "3.000000001s", and 3 seconds and 1
+// microsecond should be expressed in JSON format as "3.000001s".
+//
+//
+message Duration {
+
+  // Signed seconds of the span of time. Must be from -315,576,000,000
+  // to +315,576,000,000 inclusive. Note: these bounds are computed from:
+  // 60 sec/min * 60 min/hr * 24 hr/day * 365.25 days/year * 10000 years
+  int64 seconds = 1;
+
+  // Signed fractions of a second at nanosecond resolution of the span
+  // of time. Durations less than one second are represented with a 0
+  // `seconds` field and a positive or negative `nanos` field. For durations
+  // of one second or more, a non-zero value for the `nanos` field must be
+  // of the same sign as the `seconds` field. Must be from -999,999,999
+  // to +999,999,999 inclusive.
+  int32 nanos = 2;
+}

vendor/github.com/golang/protobuf/ptypes/struct/struct.pb.go

@@ -0,0 +1,450 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/protobuf/struct.proto
+
+package structpb // import "github.com/golang/protobuf/ptypes/struct"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// `NullValue` is a singleton enumeration to represent the null value for the
+// `Value` type union.
+//
+//  The JSON representation for `NullValue` is JSON `null`.
+type NullValue int32
+
+const (
+	// Null value.
+	NullValue_NULL_VALUE NullValue = 0
+)
+
+var NullValue_name = map[int32]string{
+	0: "NULL_VALUE",
+}
+var NullValue_value = map[string]int32{
+	"NULL_VALUE": 0,
+}
+
+func (x NullValue) String() string {
+	return proto.EnumName(NullValue_name, int32(x))
+}
+func (NullValue) EnumDescriptor() ([]byte, []int) {
+	return fileDescriptor_struct_3a5a94e0c7801b27, []int{0}
+}
+func (NullValue) XXX_WellKnownType() string { return "NullValue" }
+
+// `Struct` represents a structured data value, consisting of fields
+// which map to dynamically typed values. In some languages, `Struct`
+// might be supported by a native representation. For example, in
+// scripting languages like JS a struct is represented as an
+// object. The details of that representation are described together
+// with the proto support for the language.
+//
+// The JSON representation for `Struct` is JSON object.
+type Struct struct {
+	// Unordered map of dynamically typed values.
+	Fields               map[string]*Value `protobuf:"bytes,1,rep,name=fields,proto3" json:"fields,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
+	XXX_NoUnkeyedLiteral struct{}          `json:"-"`
+	XXX_unrecognized     []byte            `json:"-"`
+	XXX_sizecache        int32             `json:"-"`
+}
+
+func (m *Struct) Reset()         { *m = Struct{} }
+func (m *Struct) String() string { return proto.CompactTextString(m) }
+func (*Struct) ProtoMessage()    {}
+func (*Struct) Descriptor() ([]byte, []int) {
+	return fileDescriptor_struct_3a5a94e0c7801b27, []int{0}
+}
+func (*Struct) XXX_WellKnownType() string { return "Struct" }
+func (m *Struct) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Struct.Unmarshal(m, b)
+}
+func (m *Struct) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Struct.Marshal(b, m, deterministic)
+}
+func (dst *Struct) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Struct.Merge(dst, src)
+}
+func (m *Struct) XXX_Size() int {
+	return xxx_messageInfo_Struct.Size(m)
+}
+func (m *Struct) XXX_DiscardUnknown() {
+	xxx_messageInfo_Struct.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Struct proto.InternalMessageInfo
+
+func (m *Struct) GetFields() map[string]*Value {
+	if m != nil {
+		return m.Fields
+	}
+	return nil
+}
+
+// `Value` represents a dynamically typed value which can be either
+// null, a number, a string, a boolean, a recursive struct value, or a
+// list of values. A producer of value is expected to set one of that
+// variants, absence of any variant indicates an error.
+//
+// The JSON representation for `Value` is JSON value.
+type Value struct {
+	// The kind of value.
+	//
+	// Types that are valid to be assigned to Kind:
+	//	*Value_NullValue
+	//	*Value_NumberValue
+	//	*Value_StringValue
+	//	*Value_BoolValue
+	//	*Value_StructValue
+	//	*Value_ListValue
+	Kind                 isValue_Kind `protobuf_oneof:"kind"`
+	XXX_NoUnkeyedLiteral struct{}     `json:"-"`
+	XXX_unrecognized     []byte       `json:"-"`
+	XXX_sizecache        int32        `json:"-"`
+}
+
+func (m *Value) Reset()         { *m = Value{} }
+func (m *Value) String() string { return proto.CompactTextString(m) }
+func (*Value) ProtoMessage()    {}
+func (*Value) Descriptor() ([]byte, []int) {
+	return fileDescriptor_struct_3a5a94e0c7801b27, []int{1}
+}
+func (*Value) XXX_WellKnownType() string { return "Value" }
+func (m *Value) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Value.Unmarshal(m, b)
+}
+func (m *Value) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Value.Marshal(b, m, deterministic)
+}
+func (dst *Value) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Value.Merge(dst, src)
+}
+func (m *Value) XXX_Size() int {
+	return xxx_messageInfo_Value.Size(m)
+}
+func (m *Value) XXX_DiscardUnknown() {
+	xxx_messageInfo_Value.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Value proto.InternalMessageInfo
+
+type isValue_Kind interface {
+	isValue_Kind()
+}
+
+type Value_NullValue struct {
+	NullValue NullValue `protobuf:"varint,1,opt,name=null_value,json=nullValue,proto3,enum=google.protobuf.NullValue,oneof"`
+}
+
+type Value_NumberValue struct {
+	NumberValue float64 `protobuf:"fixed64,2,opt,name=number_value,json=numberValue,proto3,oneof"`
+}
+
+type Value_StringValue struct {
+	StringValue string `protobuf:"bytes,3,opt,name=string_value,json=stringValue,proto3,oneof"`
+}
+
+type Value_BoolValue struct {
+	BoolValue bool `protobuf:"varint,4,opt,name=bool_value,json=boolValue,proto3,oneof"`
+}
+
+type Value_StructValue struct {
+	StructValue *Struct `protobuf:"bytes,5,opt,name=struct_value,json=structValue,proto3,oneof"`
+}
+
+type Value_ListValue struct {
+	ListValue *ListValue `protobuf:"bytes,6,opt,name=list_value,json=listValue,proto3,oneof"`
+}
+
+func (*Value_NullValue) isValue_Kind() {}
+
+func (*Value_NumberValue) isValue_Kind() {}
+
+func (*Value_StringValue) isValue_Kind() {}
+
+func (*Value_BoolValue) isValue_Kind() {}
+
+func (*Value_StructValue) isValue_Kind() {}
+
+func (*Value_ListValue) isValue_Kind() {}
+
+func (m *Value) GetKind() isValue_Kind {
+	if m != nil {
+		return m.Kind
+	}
+	return nil
+}
+
+func (m *Value) GetNullValue() NullValue {
+	if x, ok := m.GetKind().(*Value_NullValue); ok {
+		return x.NullValue
+	}
+	return NullValue_NULL_VALUE
+}
+
+func (m *Value) GetNumberValue() float64 {
+	if x, ok := m.GetKind().(*Value_NumberValue); ok {
+		return x.NumberValue
+	}
+	return 0
+}
+
+func (m *Value) GetStringValue() string {
+	if x, ok := m.GetKind().(*Value_StringValue); ok {
+		return x.StringValue
+	}
+	return ""
+}
+
+func (m *Value) GetBoolValue() bool {
+	if x, ok := m.GetKind().(*Value_BoolValue); ok {
+		return x.BoolValue
+	}
+	return false
+}
+
+func (m *Value) GetStructValue() *Struct {
+	if x, ok := m.GetKind().(*Value_StructValue); ok {
+		return x.StructValue
+	}
+	return nil
+}
+
+func (m *Value) GetListValue() *ListValue {
+	if x, ok := m.GetKind().(*Value_ListValue); ok {
+		return x.ListValue
+	}
+	return nil
+}
+
+// XXX_OneofFuncs is for the internal use of the proto package.
+func (*Value) XXX_OneofFuncs() (func(msg proto.Message, b *proto.Buffer) error, func(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error), func(msg proto.Message) (n int), []interface{}) {
+	return _Value_OneofMarshaler, _Value_OneofUnmarshaler, _Value_OneofSizer, []interface{}{
+		(*Value_NullValue)(nil),
+		(*Value_NumberValue)(nil),
+		(*Value_StringValue)(nil),
+		(*Value_BoolValue)(nil),
+		(*Value_StructValue)(nil),
+		(*Value_ListValue)(nil),
+	}
+}
+
+func _Value_OneofMarshaler(msg proto.Message, b *proto.Buffer) error {
+	m := msg.(*Value)
+	// kind
+	switch x := m.Kind.(type) {
+	case *Value_NullValue:
+		b.EncodeVarint(1<<3 | proto.WireVarint)
+		b.EncodeVarint(uint64(x.NullValue))
+	case *Value_NumberValue:
+		b.EncodeVarint(2<<3 | proto.WireFixed64)
+		b.EncodeFixed64(math.Float64bits(x.NumberValue))
+	case *Value_StringValue:
+		b.EncodeVarint(3<<3 | proto.WireBytes)
+		b.EncodeStringBytes(x.StringValue)
+	case *Value_BoolValue:
+		t := uint64(0)
+		if x.BoolValue {
+			t = 1
+		}
+		b.EncodeVarint(4<<3 | proto.WireVarint)
+		b.EncodeVarint(t)
+	case *Value_StructValue:
+		b.EncodeVarint(5<<3 | proto.WireBytes)
+		if err := b.EncodeMessage(x.StructValue); err != nil {
+			return err
+		}
+	case *Value_ListValue:
+		b.EncodeVarint(6<<3 | proto.WireBytes)
+		if err := b.EncodeMessage(x.ListValue); err != nil {
+			return err
+		}
+	case nil:
+	default:
+		return fmt.Errorf("Value.Kind has unexpected type %T", x)
+	}
+	return nil
+}
+
+func _Value_OneofUnmarshaler(msg proto.Message, tag, wire int, b *proto.Buffer) (bool, error) {
+	m := msg.(*Value)
+	switch tag {
+	case 1: // kind.null_value
+		if wire != proto.WireVarint {
+			return true, proto.ErrInternalBadWireType
+		}
+		x, err := b.DecodeVarint()
+		m.Kind = &Value_NullValue{NullValue(x)}
+		return true, err
+	case 2: // kind.number_value
+		if wire != proto.WireFixed64 {
+			return true, proto.ErrInternalBadWireType
+		}
+		x, err := b.DecodeFixed64()
+		m.Kind = &Value_NumberValue{math.Float64frombits(x)}
+		return true, err
+	case 3: // kind.string_value
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		x, err := b.DecodeStringBytes()
+		m.Kind = &Value_StringValue{x}
+		return true, err
+	case 4: // kind.bool_value
+		if wire != proto.WireVarint {
+			return true, proto.ErrInternalBadWireType
+		}
+		x, err := b.DecodeVarint()
+		m.Kind = &Value_BoolValue{x != 0}
+		return true, err
+	case 5: // kind.struct_value
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		msg := new(Struct)
+		err := b.DecodeMessage(msg)
+		m.Kind = &Value_StructValue{msg}
+		return true, err
+	case 6: // kind.list_value
+		if wire != proto.WireBytes {
+			return true, proto.ErrInternalBadWireType
+		}
+		msg := new(ListValue)
+		err := b.DecodeMessage(msg)
+		m.Kind = &Value_ListValue{msg}
+		return true, err
+	default:
+		return false, nil
+	}
+}
+
+func _Value_OneofSizer(msg proto.Message) (n int) {
+	m := msg.(*Value)
+	// kind
+	switch x := m.Kind.(type) {
+	case *Value_NullValue:
+		n += 1 // tag and wire
+		n += proto.SizeVarint(uint64(x.NullValue))
+	case *Value_NumberValue:
+		n += 1 // tag and wire
+		n += 8
+	case *Value_StringValue:
+		n += 1 // tag and wire
+		n += proto.SizeVarint(uint64(len(x.StringValue)))
+		n += len(x.StringValue)
+	case *Value_BoolValue:
+		n += 1 // tag and wire
+		n += 1
+	case *Value_StructValue:
+		s := proto.Size(x.StructValue)
+		n += 1 // tag and wire
+		n += proto.SizeVarint(uint64(s))
+		n += s
+	case *Value_ListValue:
+		s := proto.Size(x.ListValue)
+		n += 1 // tag and wire
+		n += proto.SizeVarint(uint64(s))
+		n += s
+	case nil:
+	default:
+		panic(fmt.Sprintf("proto: unexpected type %T in oneof", x))
+	}
+	return n
+}
+
+// `ListValue` is a wrapper around a repeated field of values.
+//
+// The JSON representation for `ListValue` is JSON array.
+type ListValue struct {
+	// Repeated field of dynamically typed values.
+	Values               []*Value `protobuf:"bytes,1,rep,name=values,proto3" json:"values,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *ListValue) Reset()         { *m = ListValue{} }
+func (m *ListValue) String() string { return proto.CompactTextString(m) }
+func (*ListValue) ProtoMessage()    {}
+func (*ListValue) Descriptor() ([]byte, []int) {
+	return fileDescriptor_struct_3a5a94e0c7801b27, []int{2}
+}
+func (*ListValue) XXX_WellKnownType() string { return "ListValue" }
+func (m *ListValue) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_ListValue.Unmarshal(m, b)
+}
+func (m *ListValue) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_ListValue.Marshal(b, m, deterministic)
+}
+func (dst *ListValue) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_ListValue.Merge(dst, src)
+}
+func (m *ListValue) XXX_Size() int {
+	return xxx_messageInfo_ListValue.Size(m)
+}
+func (m *ListValue) XXX_DiscardUnknown() {
+	xxx_messageInfo_ListValue.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_ListValue proto.InternalMessageInfo
+
+func (m *ListValue) GetValues() []*Value {
+	if m != nil {
+		return m.Values
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*Struct)(nil), "google.protobuf.Struct")
+	proto.RegisterMapType((map[string]*Value)(nil), "google.protobuf.Struct.FieldsEntry")
+	proto.RegisterType((*Value)(nil), "google.protobuf.Value")
+	proto.RegisterType((*ListValue)(nil), "google.protobuf.ListValue")
+	proto.RegisterEnum("google.protobuf.NullValue", NullValue_name, NullValue_value)
+}
+
+func init() {
+	proto.RegisterFile("google/protobuf/struct.proto", fileDescriptor_struct_3a5a94e0c7801b27)
+}
+
+var fileDescriptor_struct_3a5a94e0c7801b27 = []byte{
+	// 417 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x74, 0x92, 0x41, 0x8b, 0xd3, 0x40,
+	0x14, 0xc7, 0x3b, 0xc9, 0x36, 0x98, 0x17, 0x59, 0x97, 0x11, 0xb4, 0xac, 0xa2, 0xa1, 0x7b, 0x09,
+	0x22, 0x29, 0xd6, 0x8b, 0x18, 0x2f, 0x06, 0xd6, 0x5d, 0x30, 0x2c, 0x31, 0xba, 0x15, 0xbc, 0x94,
+	0x26, 0x4d, 0x63, 0xe8, 0x74, 0x26, 0x24, 0x33, 0x4a, 0x8f, 0x7e, 0x0b, 0xcf, 0x1e, 0x3d, 0xfa,
+	0xe9, 0x3c, 0xca, 0xcc, 0x24, 0xa9, 0xb4, 0xf4, 0x94, 0xbc, 0xf7, 0x7e, 0xef, 0x3f, 0xef, 0xff,
+	0x66, 0xe0, 0x71, 0xc1, 0x58, 0x41, 0xf2, 0x49, 0x55, 0x33, 0xce, 0x52, 0xb1, 0x9a, 0x34, 0xbc,
+	0x16, 0x19, 0xf7, 0x55, 0x8c, 0xef, 0xe9, 0xaa, 0xdf, 0x55, 0xc7, 0x3f, 0x11, 0x58, 0x1f, 0x15,
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+	0x0d, 0x3d, 0x05, 0x48, 0x19, 0xeb, 0xc6, 0x38, 0x71, 0x91, 0x77, 0x47, 0x1e, 0x25, 0x73, 0x1a,
+	0x78, 0xa3, 0x54, 0x44, 0xc6, 0x5b, 0x64, 0xa8, 0xac, 0x3e, 0x3c, 0xb2, 0xc7, 0x56, 0x5e, 0x64,
+	0xbc, 0x77, 0x49, 0xca, 0xa6, 0xeb, 0xb5, 0x54, 0xef, 0xa1, 0xcb, 0xa8, 0x6c, 0x78, 0xef, 0x92,
+	0x74, 0x41, 0x68, 0xc1, 0xc9, 0xba, 0xa4, 0xcb, 0x71, 0x00, 0x76, 0x4f, 0x60, 0x1f, 0x2c, 0x25,
+	0xd6, 0xdd, 0xe8, 0xb1, 0xa5, 0xb7, 0xd4, 0xb3, 0x47, 0x60, 0xf7, 0x4b, 0xc4, 0xa7, 0x00, 0x37,
+	0xb7, 0x51, 0x34, 0x9f, 0xbd, 0x8d, 0x6e, 0x2f, 0xcf, 0x06, 0xe1, 0x0f, 0x04, 0xf7, 0x33, 0xb6,
+	0xd9, 0x97, 0x08, 0x1d, 0xed, 0x26, 0x96, 0x71, 0x8c, 0xbe, 0xbc, 0x28, 0x4a, 0xfe, 0x55, 0xa4,
+	0x7e, 0xc6, 0x36, 0x93, 0x82, 0x91, 0x05, 0x2d, 0x76, 0x4f, 0xb1, 0xe2, 0xdb, 0x2a, 0x6f, 0xda,
+	0x17, 0x19, 0xe8, 0x4f, 0x95, 0xfe, 0x45, 0xe8, 0x97, 0x61, 0x5e, 0xc5, 0xe1, 0x6f, 0xe3, 0xc9,
+	0x95, 0x16, 0x8f, 0xbb, 0xf9, 0x3e, 0xe7, 0x84, 0xbc, 0xa7, 0xec, 0x3b, 0xfd, 0x24, 0x3b, 0x53,
+	0x4b, 0x49, 0xbd, 0xfc, 0x17, 0x00, 0x00, 0xff, 0xff, 0xe8, 0x1b, 0x59, 0xf8, 0xe5, 0x02, 0x00,
+	0x00,
+}

vendor/github.com/golang/protobuf/ptypes/struct/struct.proto

@@ -0,0 +1,96 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+package google.protobuf;
+
+option csharp_namespace = "Google.Protobuf.WellKnownTypes";
+option cc_enable_arenas = true;
+option go_package = "github.com/golang/protobuf/ptypes/struct;structpb";
+option java_package = "com.google.protobuf";
+option java_outer_classname = "StructProto";
+option java_multiple_files = true;
+option objc_class_prefix = "GPB";
+
+
+// `Struct` represents a structured data value, consisting of fields
+// which map to dynamically typed values. In some languages, `Struct`
+// might be supported by a native representation. For example, in
+// scripting languages like JS a struct is represented as an
+// object. The details of that representation are described together
+// with the proto support for the language.
+//
+// The JSON representation for `Struct` is JSON object.
+message Struct {
+  // Unordered map of dynamically typed values.
+  map<string, Value> fields = 1;
+}
+
+// `Value` represents a dynamically typed value which can be either
+// null, a number, a string, a boolean, a recursive struct value, or a
+// list of values. A producer of value is expected to set one of that
+// variants, absence of any variant indicates an error.
+//
+// The JSON representation for `Value` is JSON value.
+message Value {
+  // The kind of value.
+  oneof kind {
+    // Represents a null value.
+    NullValue null_value = 1;
+    // Represents a double value.
+    double number_value = 2;
+    // Represents a string value.
+    string string_value = 3;
+    // Represents a boolean value.
+    bool bool_value = 4;
+    // Represents a structured value.
+    Struct struct_value = 5;
+    // Represents a repeated `Value`.
+    ListValue list_value = 6;
+  }
+}
+
+// `NullValue` is a singleton enumeration to represent the null value for the
+// `Value` type union.
+//
+//  The JSON representation for `NullValue` is JSON `null`.
+enum NullValue {
+  // Null value.
+  NULL_VALUE = 0;
+}
+
+// `ListValue` is a wrapper around a repeated field of values.
+//
+// The JSON representation for `ListValue` is JSON array.
+message ListValue {
+  // Repeated field of dynamically typed values.
+  repeated Value values = 1;
+}

vendor/github.com/golang/protobuf/ptypes/timestamp.go

@@ -0,0 +1,134 @@
+// Go support for Protocol Buffers - Google's data interchange format
+//
+// Copyright 2016 The Go Authors.  All rights reserved.
+// https://github.com/golang/protobuf
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+package ptypes
+
+// This file implements operations on google.protobuf.Timestamp.
+
+import (
+	"errors"
+	"fmt"
+	"time"
+
+	tspb "github.com/golang/protobuf/ptypes/timestamp"
+)
+
+const (
+	// Seconds field of the earliest valid Timestamp.
+	// This is time.Date(1, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
+	minValidSeconds = -62135596800
+	// Seconds field just after the latest valid Timestamp.
+	// This is time.Date(10000, 1, 1, 0, 0, 0, 0, time.UTC).Unix().
+	maxValidSeconds = 253402300800
+)
+
+// validateTimestamp determines whether a Timestamp is valid.
+// A valid timestamp represents a time in the range
+// [0001-01-01, 10000-01-01) and has a Nanos field
+// in the range [0, 1e9).
+//
+// If the Timestamp is valid, validateTimestamp returns nil.
+// Otherwise, it returns an error that describes
+// the problem.
+//
+// Every valid Timestamp can be represented by a time.Time, but the converse is not true.
+func validateTimestamp(ts *tspb.Timestamp) error {
+	if ts == nil {
+		return errors.New("timestamp: nil Timestamp")
+	}
+	if ts.Seconds < minValidSeconds {
+		return fmt.Errorf("timestamp: %v before 0001-01-01", ts)
+	}
+	if ts.Seconds >= maxValidSeconds {
+		return fmt.Errorf("timestamp: %v after 10000-01-01", ts)
+	}
+	if ts.Nanos < 0 || ts.Nanos >= 1e9 {
+		return fmt.Errorf("timestamp: %v: nanos not in range [0, 1e9)", ts)
+	}
+	return nil
+}
+
+// Timestamp converts a google.protobuf.Timestamp proto to a time.Time.
+// It returns an error if the argument is invalid.
+//
+// Unlike most Go functions, if Timestamp returns an error, the first return value
+// is not the zero time.Time. Instead, it is the value obtained from the
+// time.Unix function when passed the contents of the Timestamp, in the UTC
+// locale. This may or may not be a meaningful time; many invalid Timestamps
+// do map to valid time.Times.
+//
+// A nil Timestamp returns an error. The first return value in that case is
+// undefined.
+func Timestamp(ts *tspb.Timestamp) (time.Time, error) {
+	// Don't return the zero value on error, because corresponds to a valid
+	// timestamp. Instead return whatever time.Unix gives us.
+	var t time.Time
+	if ts == nil {
+		t = time.Unix(0, 0).UTC() // treat nil like the empty Timestamp
+	} else {
+		t = time.Unix(ts.Seconds, int64(ts.Nanos)).UTC()
+	}
+	return t, validateTimestamp(ts)
+}
+
+// TimestampNow returns a google.protobuf.Timestamp for the current time.
+func TimestampNow() *tspb.Timestamp {
+	ts, err := TimestampProto(time.Now())
+	if err != nil {
+		panic("ptypes: time.Now() out of Timestamp range")
+	}
+	return ts
+}
+
+// TimestampProto converts the time.Time to a google.protobuf.Timestamp proto.
+// It returns an error if the resulting Timestamp is invalid.
+func TimestampProto(t time.Time) (*tspb.Timestamp, error) {
+	seconds := t.Unix()
+	nanos := int32(t.Sub(time.Unix(seconds, 0)))
+	ts := &tspb.Timestamp{
+		Seconds: seconds,
+		Nanos:   nanos,
+	}
+	if err := validateTimestamp(ts); err != nil {
+		return nil, err
+	}
+	return ts, nil
+}
+
+// TimestampString returns the RFC 3339 string for valid Timestamps. For invalid
+// Timestamps, it returns an error message in parentheses.
+func TimestampString(ts *tspb.Timestamp) string {
+	t, err := Timestamp(ts)
+	if err != nil {
+		return fmt.Sprintf("(%v)", err)
+	}
+	return t.Format(time.RFC3339Nano)
+}

vendor/github.com/golang/protobuf/ptypes/timestamp/timestamp.pb.go

@@ -0,0 +1,175 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/protobuf/timestamp.proto
+
+package timestamp // import "github.com/golang/protobuf/ptypes/timestamp"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// A Timestamp represents a point in time independent of any time zone
+// or calendar, represented as seconds and fractions of seconds at
+// nanosecond resolution in UTC Epoch time. It is encoded using the
+// Proleptic Gregorian Calendar which extends the Gregorian calendar
+// backwards to year one. It is encoded assuming all minutes are 60
+// seconds long, i.e. leap seconds are "smeared" so that no leap second
+// table is needed for interpretation. Range is from
+// 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z.
+// By restricting to that range, we ensure that we can convert to
+// and from  RFC 3339 date strings.
+// See [https://www.ietf.org/rfc/rfc3339.txt](https://www.ietf.org/rfc/rfc3339.txt).
+//
+// # Examples
+//
+// Example 1: Compute Timestamp from POSIX `time()`.
+//
+//     Timestamp timestamp;
+//     timestamp.set_seconds(time(NULL));
+//     timestamp.set_nanos(0);
+//
+// Example 2: Compute Timestamp from POSIX `gettimeofday()`.
+//
+//     struct timeval tv;
+//     gettimeofday(&tv, NULL);
+//
+//     Timestamp timestamp;
+//     timestamp.set_seconds(tv.tv_sec);
+//     timestamp.set_nanos(tv.tv_usec * 1000);
+//
+// Example 3: Compute Timestamp from Win32 `GetSystemTimeAsFileTime()`.
+//
+//     FILETIME ft;
+//     GetSystemTimeAsFileTime(&ft);
+//     UINT64 ticks = (((UINT64)ft.dwHighDateTime) << 32) | ft.dwLowDateTime;
+//
+//     // A Windows tick is 100 nanoseconds. Windows epoch 1601-01-01T00:00:00Z
+//     // is 11644473600 seconds before Unix epoch 1970-01-01T00:00:00Z.
+//     Timestamp timestamp;
+//     timestamp.set_seconds((INT64) ((ticks / 10000000) - 11644473600LL));
+//     timestamp.set_nanos((INT32) ((ticks % 10000000) * 100));
+//
+// Example 4: Compute Timestamp from Java `System.currentTimeMillis()`.
+//
+//     long millis = System.currentTimeMillis();
+//
+//     Timestamp timestamp = Timestamp.newBuilder().setSeconds(millis / 1000)
+//         .setNanos((int) ((millis % 1000) * 1000000)).build();
+//
+//
+// Example 5: Compute Timestamp from current time in Python.
+//
+//     timestamp = Timestamp()
+//     timestamp.GetCurrentTime()
+//
+// # JSON Mapping
+//
+// In JSON format, the Timestamp type is encoded as a string in the
+// [RFC 3339](https://www.ietf.org/rfc/rfc3339.txt) format. That is, the
+// format is "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z"
+// where {year} is always expressed using four digits while {month}, {day},
+// {hour}, {min}, and {sec} are zero-padded to two digits each. The fractional
+// seconds, which can go up to 9 digits (i.e. up to 1 nanosecond resolution),
+// are optional. The "Z" suffix indicates the timezone ("UTC"); the timezone
+// is required, though only UTC (as indicated by "Z") is presently supported.
+//
+// For example, "2017-01-15T01:30:15.01Z" encodes 15.01 seconds past
+// 01:30 UTC on January 15, 2017.
+//
+// In JavaScript, one can convert a Date object to this format using the
+// standard [toISOString()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString]
+// method. In Python, a standard `datetime.datetime` object can be converted
+// to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime)
+// with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one
+// can use the Joda Time's [`ISODateTimeFormat.dateTime()`](
+// http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--)
+// to obtain a formatter capable of generating timestamps in this format.
+//
+//
+type Timestamp struct {
+	// Represents seconds of UTC time since Unix epoch
+	// 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
+	// 9999-12-31T23:59:59Z inclusive.
+	Seconds int64 `protobuf:"varint,1,opt,name=seconds,proto3" json:"seconds,omitempty"`
+	// Non-negative fractions of a second at nanosecond resolution. Negative
+	// second values with fractions must still have non-negative nanos values
+	// that count forward in time. Must be from 0 to 999,999,999
+	// inclusive.
+	Nanos                int32    `protobuf:"varint,2,opt,name=nanos,proto3" json:"nanos,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Timestamp) Reset()         { *m = Timestamp{} }
+func (m *Timestamp) String() string { return proto.CompactTextString(m) }
+func (*Timestamp) ProtoMessage()    {}
+func (*Timestamp) Descriptor() ([]byte, []int) {
+	return fileDescriptor_timestamp_b826e8e5fba671a8, []int{0}
+}
+func (*Timestamp) XXX_WellKnownType() string { return "Timestamp" }
+func (m *Timestamp) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Timestamp.Unmarshal(m, b)
+}
+func (m *Timestamp) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Timestamp.Marshal(b, m, deterministic)
+}
+func (dst *Timestamp) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Timestamp.Merge(dst, src)
+}
+func (m *Timestamp) XXX_Size() int {
+	return xxx_messageInfo_Timestamp.Size(m)
+}
+func (m *Timestamp) XXX_DiscardUnknown() {
+	xxx_messageInfo_Timestamp.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Timestamp proto.InternalMessageInfo
+
+func (m *Timestamp) GetSeconds() int64 {
+	if m != nil {
+		return m.Seconds
+	}
+	return 0
+}
+
+func (m *Timestamp) GetNanos() int32 {
+	if m != nil {
+		return m.Nanos
+	}
+	return 0
+}
+
+func init() {
+	proto.RegisterType((*Timestamp)(nil), "google.protobuf.Timestamp")
+}
+
+func init() {
+	proto.RegisterFile("google/protobuf/timestamp.proto", fileDescriptor_timestamp_b826e8e5fba671a8)
+}
+
+var fileDescriptor_timestamp_b826e8e5fba671a8 = []byte{
+	// 191 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x4f, 0xcf, 0xcf, 0x4f,
+	0xcf, 0x49, 0xd5, 0x2f, 0x28, 0xca, 0x2f, 0xc9, 0x4f, 0x2a, 0x4d, 0xd3, 0x2f, 0xc9, 0xcc, 0x4d,
+	0x2d, 0x2e, 0x49, 0xcc, 0x2d, 0xd0, 0x03, 0x0b, 0x09, 0xf1, 0x43, 0x14, 0xe8, 0xc1, 0x14, 0x28,
+	0x59, 0x73, 0x71, 0x86, 0xc0, 0xd4, 0x08, 0x49, 0x70, 0xb1, 0x17, 0xa7, 0x26, 0xe7, 0xe7, 0xa5,
+	0x14, 0x4b, 0x30, 0x2a, 0x30, 0x6a, 0x30, 0x07, 0xc1, 0xb8, 0x42, 0x22, 0x5c, 0xac, 0x79, 0x89,
+	0x79, 0xf9, 0xc5, 0x12, 0x4c, 0x0a, 0x8c, 0x1a, 0xac, 0x41, 0x10, 0x8e, 0x53, 0x1d, 0x97, 0x70,
+	0x72, 0x7e, 0xae, 0x1e, 0x9a, 0x99, 0x4e, 0x7c, 0x70, 0x13, 0x03, 0x40, 0x42, 0x01, 0x8c, 0x51,
+	0xda, 0xe9, 0x99, 0x25, 0x19, 0xa5, 0x49, 0x7a, 0xc9, 0xf9, 0xb9, 0xfa, 0xe9, 0xf9, 0x39, 0x89,
+	0x79, 0xe9, 0x08, 0x27, 0x16, 0x94, 0x54, 0x16, 0xa4, 0x16, 0x23, 0x5c, 0xfa, 0x83, 0x91, 0x71,
+	0x11, 0x13, 0xb3, 0x7b, 0x80, 0xd3, 0x2a, 0x26, 0x39, 0x77, 0x88, 0xc9, 0x01, 0x50, 0xb5, 0x7a,
+	0xe1, 0xa9, 0x39, 0x39, 0xde, 0x79, 0xf9, 0xe5, 0x79, 0x21, 0x20, 0x3d, 0x49, 0x6c, 0x60, 0x43,
+	0x8c, 0x01, 0x01, 0x00, 0x00, 0xff, 0xff, 0xbc, 0x77, 0x4a, 0x07, 0xf7, 0x00, 0x00, 0x00,
+}

vendor/github.com/golang/protobuf/ptypes/timestamp/timestamp.proto

@@ -0,0 +1,133 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+syntax = "proto3";
+
+package google.protobuf;
+
+option csharp_namespace = "Google.Protobuf.WellKnownTypes";
+option cc_enable_arenas = true;
+option go_package = "github.com/golang/protobuf/ptypes/timestamp";
+option java_package = "com.google.protobuf";
+option java_outer_classname = "TimestampProto";
+option java_multiple_files = true;
+option objc_class_prefix = "GPB";
+
+// A Timestamp represents a point in time independent of any time zone
+// or calendar, represented as seconds and fractions of seconds at
+// nanosecond resolution in UTC Epoch time. It is encoded using the
+// Proleptic Gregorian Calendar which extends the Gregorian calendar
+// backwards to year one. It is encoded assuming all minutes are 60
+// seconds long, i.e. leap seconds are "smeared" so that no leap second
+// table is needed for interpretation. Range is from
+// 0001-01-01T00:00:00Z to 9999-12-31T23:59:59.999999999Z.
+// By restricting to that range, we ensure that we can convert to
+// and from  RFC 3339 date strings.
+// See [https://www.ietf.org/rfc/rfc3339.txt](https://www.ietf.org/rfc/rfc3339.txt).
+//
+// # Examples
+//
+// Example 1: Compute Timestamp from POSIX `time()`.
+//
+//     Timestamp timestamp;
+//     timestamp.set_seconds(time(NULL));
+//     timestamp.set_nanos(0);
+//
+// Example 2: Compute Timestamp from POSIX `gettimeofday()`.
+//
+//     struct timeval tv;
+//     gettimeofday(&tv, NULL);
+//
+//     Timestamp timestamp;
+//     timestamp.set_seconds(tv.tv_sec);
+//     timestamp.set_nanos(tv.tv_usec * 1000);
+//
+// Example 3: Compute Timestamp from Win32 `GetSystemTimeAsFileTime()`.
+//
+//     FILETIME ft;
+//     GetSystemTimeAsFileTime(&ft);
+//     UINT64 ticks = (((UINT64)ft.dwHighDateTime) << 32) | ft.dwLowDateTime;
+//
+//     // A Windows tick is 100 nanoseconds. Windows epoch 1601-01-01T00:00:00Z
+//     // is 11644473600 seconds before Unix epoch 1970-01-01T00:00:00Z.
+//     Timestamp timestamp;
+//     timestamp.set_seconds((INT64) ((ticks / 10000000) - 11644473600LL));
+//     timestamp.set_nanos((INT32) ((ticks % 10000000) * 100));
+//
+// Example 4: Compute Timestamp from Java `System.currentTimeMillis()`.
+//
+//     long millis = System.currentTimeMillis();
+//
+//     Timestamp timestamp = Timestamp.newBuilder().setSeconds(millis / 1000)
+//         .setNanos((int) ((millis % 1000) * 1000000)).build();
+//
+//
+// Example 5: Compute Timestamp from current time in Python.
+//
+//     timestamp = Timestamp()
+//     timestamp.GetCurrentTime()
+//
+// # JSON Mapping
+//
+// In JSON format, the Timestamp type is encoded as a string in the
+// [RFC 3339](https://www.ietf.org/rfc/rfc3339.txt) format. That is, the
+// format is "{year}-{month}-{day}T{hour}:{min}:{sec}[.{frac_sec}]Z"
+// where {year} is always expressed using four digits while {month}, {day},
+// {hour}, {min}, and {sec} are zero-padded to two digits each. The fractional
+// seconds, which can go up to 9 digits (i.e. up to 1 nanosecond resolution),
+// are optional. The "Z" suffix indicates the timezone ("UTC"); the timezone
+// is required, though only UTC (as indicated by "Z") is presently supported.
+//
+// For example, "2017-01-15T01:30:15.01Z" encodes 15.01 seconds past
+// 01:30 UTC on January 15, 2017.
+//
+// In JavaScript, one can convert a Date object to this format using the
+// standard [toISOString()](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Date/toISOString]
+// method. In Python, a standard `datetime.datetime` object can be converted
+// to this format using [`strftime`](https://docs.python.org/2/library/time.html#time.strftime)
+// with the time format spec '%Y-%m-%dT%H:%M:%S.%fZ'. Likewise, in Java, one
+// can use the Joda Time's [`ISODateTimeFormat.dateTime()`](
+// http://www.joda.org/joda-time/apidocs/org/joda/time/format/ISODateTimeFormat.html#dateTime--)
+// to obtain a formatter capable of generating timestamps in this format.
+//
+//
+message Timestamp {
+
+  // Represents seconds of UTC time since Unix epoch
+  // 1970-01-01T00:00:00Z. Must be from 0001-01-01T00:00:00Z to
+  // 9999-12-31T23:59:59Z inclusive.
+  int64 seconds = 1;
+
+  // Non-negative fractions of a second at nanosecond resolution. Negative
+  // second values with fractions must still have non-negative nanos values
+  // that count forward in time. Must be from 0 to 999,999,999
+  // inclusive.
+  int32 nanos = 2;
+}

vendor/github.com/golang/protobuf/ptypes/wrappers/wrappers.pb.go

@@ -0,0 +1,443 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: google/protobuf/wrappers.proto
+
+package wrappers // import "github.com/golang/protobuf/ptypes/wrappers"
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// Wrapper message for `double`.
+//
+// The JSON representation for `DoubleValue` is JSON number.
+type DoubleValue struct {
+	// The double value.
+	Value                float64  `protobuf:"fixed64,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *DoubleValue) Reset()         { *m = DoubleValue{} }
+func (m *DoubleValue) String() string { return proto.CompactTextString(m) }
+func (*DoubleValue) ProtoMessage()    {}
+func (*DoubleValue) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{0}
+}
+func (*DoubleValue) XXX_WellKnownType() string { return "DoubleValue" }
+func (m *DoubleValue) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_DoubleValue.Unmarshal(m, b)
+}
+func (m *DoubleValue) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_DoubleValue.Marshal(b, m, deterministic)
+}
+func (dst *DoubleValue) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_DoubleValue.Merge(dst, src)
+}
+func (m *DoubleValue) XXX_Size() int {
+	return xxx_messageInfo_DoubleValue.Size(m)
+}
+func (m *DoubleValue) XXX_DiscardUnknown() {
+	xxx_messageInfo_DoubleValue.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_DoubleValue proto.InternalMessageInfo
+
+func (m *DoubleValue) GetValue() float64 {
+	if m != nil {
+		return m.Value
+	}
+	return 0
+}
+
+// Wrapper message for `float`.
+//
+// The JSON representation for `FloatValue` is JSON number.
+type FloatValue struct {
+	// The float value.
+	Value                float32  `protobuf:"fixed32,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *FloatValue) Reset()         { *m = FloatValue{} }
+func (m *FloatValue) String() string { return proto.CompactTextString(m) }
+func (*FloatValue) ProtoMessage()    {}
+func (*FloatValue) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{1}
+}
+func (*FloatValue) XXX_WellKnownType() string { return "FloatValue" }
+func (m *FloatValue) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_FloatValue.Unmarshal(m, b)
+}
+func (m *FloatValue) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_FloatValue.Marshal(b, m, deterministic)
+}
+func (dst *FloatValue) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_FloatValue.Merge(dst, src)
+}
+func (m *FloatValue) XXX_Size() int {
+	return xxx_messageInfo_FloatValue.Size(m)
+}
+func (m *FloatValue) XXX_DiscardUnknown() {
+	xxx_messageInfo_FloatValue.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_FloatValue proto.InternalMessageInfo
+
+func (m *FloatValue) GetValue() float32 {
+	if m != nil {
+		return m.Value
+	}
+	return 0
+}
+
+// Wrapper message for `int64`.
+//
+// The JSON representation for `Int64Value` is JSON string.
+type Int64Value struct {
+	// The int64 value.
+	Value                int64    `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Int64Value) Reset()         { *m = Int64Value{} }
+func (m *Int64Value) String() string { return proto.CompactTextString(m) }
+func (*Int64Value) ProtoMessage()    {}
+func (*Int64Value) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{2}
+}
+func (*Int64Value) XXX_WellKnownType() string { return "Int64Value" }
+func (m *Int64Value) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Int64Value.Unmarshal(m, b)
+}
+func (m *Int64Value) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Int64Value.Marshal(b, m, deterministic)
+}
+func (dst *Int64Value) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Int64Value.Merge(dst, src)
+}
+func (m *Int64Value) XXX_Size() int {
+	return xxx_messageInfo_Int64Value.Size(m)
+}
+func (m *Int64Value) XXX_DiscardUnknown() {
+	xxx_messageInfo_Int64Value.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Int64Value proto.InternalMessageInfo
+
+func (m *Int64Value) GetValue() int64 {
+	if m != nil {
+		return m.Value
+	}
+	return 0
+}
+
+// Wrapper message for `uint64`.
+//
+// The JSON representation for `UInt64Value` is JSON string.
+type UInt64Value struct {
+	// The uint64 value.
+	Value                uint64   `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *UInt64Value) Reset()         { *m = UInt64Value{} }
+func (m *UInt64Value) String() string { return proto.CompactTextString(m) }
+func (*UInt64Value) ProtoMessage()    {}
+func (*UInt64Value) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{3}
+}
+func (*UInt64Value) XXX_WellKnownType() string { return "UInt64Value" }
+func (m *UInt64Value) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_UInt64Value.Unmarshal(m, b)
+}
+func (m *UInt64Value) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_UInt64Value.Marshal(b, m, deterministic)
+}
+func (dst *UInt64Value) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_UInt64Value.Merge(dst, src)
+}
+func (m *UInt64Value) XXX_Size() int {
+	return xxx_messageInfo_UInt64Value.Size(m)
+}
+func (m *UInt64Value) XXX_DiscardUnknown() {
+	xxx_messageInfo_UInt64Value.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_UInt64Value proto.InternalMessageInfo
+
+func (m *UInt64Value) GetValue() uint64 {
+	if m != nil {
+		return m.Value
+	}
+	return 0
+}
+
+// Wrapper message for `int32`.
+//
+// The JSON representation for `Int32Value` is JSON number.
+type Int32Value struct {
+	// The int32 value.
+	Value                int32    `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *Int32Value) Reset()         { *m = Int32Value{} }
+func (m *Int32Value) String() string { return proto.CompactTextString(m) }
+func (*Int32Value) ProtoMessage()    {}
+func (*Int32Value) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{4}
+}
+func (*Int32Value) XXX_WellKnownType() string { return "Int32Value" }
+func (m *Int32Value) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_Int32Value.Unmarshal(m, b)
+}
+func (m *Int32Value) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_Int32Value.Marshal(b, m, deterministic)
+}
+func (dst *Int32Value) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_Int32Value.Merge(dst, src)
+}
+func (m *Int32Value) XXX_Size() int {
+	return xxx_messageInfo_Int32Value.Size(m)
+}
+func (m *Int32Value) XXX_DiscardUnknown() {
+	xxx_messageInfo_Int32Value.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_Int32Value proto.InternalMessageInfo
+
+func (m *Int32Value) GetValue() int32 {
+	if m != nil {
+		return m.Value
+	}
+	return 0
+}
+
+// Wrapper message for `uint32`.
+//
+// The JSON representation for `UInt32Value` is JSON number.
+type UInt32Value struct {
+	// The uint32 value.
+	Value                uint32   `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *UInt32Value) Reset()         { *m = UInt32Value{} }
+func (m *UInt32Value) String() string { return proto.CompactTextString(m) }
+func (*UInt32Value) ProtoMessage()    {}
+func (*UInt32Value) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{5}
+}
+func (*UInt32Value) XXX_WellKnownType() string { return "UInt32Value" }
+func (m *UInt32Value) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_UInt32Value.Unmarshal(m, b)
+}
+func (m *UInt32Value) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_UInt32Value.Marshal(b, m, deterministic)
+}
+func (dst *UInt32Value) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_UInt32Value.Merge(dst, src)
+}
+func (m *UInt32Value) XXX_Size() int {
+	return xxx_messageInfo_UInt32Value.Size(m)
+}
+func (m *UInt32Value) XXX_DiscardUnknown() {
+	xxx_messageInfo_UInt32Value.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_UInt32Value proto.InternalMessageInfo
+
+func (m *UInt32Value) GetValue() uint32 {
+	if m != nil {
+		return m.Value
+	}
+	return 0
+}
+
+// Wrapper message for `bool`.
+//
+// The JSON representation for `BoolValue` is JSON `true` and `false`.
+type BoolValue struct {
+	// The bool value.
+	Value                bool     `protobuf:"varint,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *BoolValue) Reset()         { *m = BoolValue{} }
+func (m *BoolValue) String() string { return proto.CompactTextString(m) }
+func (*BoolValue) ProtoMessage()    {}
+func (*BoolValue) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{6}
+}
+func (*BoolValue) XXX_WellKnownType() string { return "BoolValue" }
+func (m *BoolValue) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_BoolValue.Unmarshal(m, b)
+}
+func (m *BoolValue) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_BoolValue.Marshal(b, m, deterministic)
+}
+func (dst *BoolValue) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_BoolValue.Merge(dst, src)
+}
+func (m *BoolValue) XXX_Size() int {
+	return xxx_messageInfo_BoolValue.Size(m)
+}
+func (m *BoolValue) XXX_DiscardUnknown() {
+	xxx_messageInfo_BoolValue.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_BoolValue proto.InternalMessageInfo
+
+func (m *BoolValue) GetValue() bool {
+	if m != nil {
+		return m.Value
+	}
+	return false
+}
+
+// Wrapper message for `string`.
+//
+// The JSON representation for `StringValue` is JSON string.
+type StringValue struct {
+	// The string value.
+	Value                string   `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *StringValue) Reset()         { *m = StringValue{} }
+func (m *StringValue) String() string { return proto.CompactTextString(m) }
+func (*StringValue) ProtoMessage()    {}
+func (*StringValue) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{7}
+}
+func (*StringValue) XXX_WellKnownType() string { return "StringValue" }
+func (m *StringValue) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_StringValue.Unmarshal(m, b)
+}
+func (m *StringValue) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_StringValue.Marshal(b, m, deterministic)
+}
+func (dst *StringValue) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StringValue.Merge(dst, src)
+}
+func (m *StringValue) XXX_Size() int {
+	return xxx_messageInfo_StringValue.Size(m)
+}
+func (m *StringValue) XXX_DiscardUnknown() {
+	xxx_messageInfo_StringValue.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_StringValue proto.InternalMessageInfo
+
+func (m *StringValue) GetValue() string {
+	if m != nil {
+		return m.Value
+	}
+	return ""
+}
+
+// Wrapper message for `bytes`.
+//
+// The JSON representation for `BytesValue` is JSON string.
+type BytesValue struct {
+	// The bytes value.
+	Value                []byte   `protobuf:"bytes,1,opt,name=value,proto3" json:"value,omitempty"`
+	XXX_NoUnkeyedLiteral struct{} `json:"-"`
+	XXX_unrecognized     []byte   `json:"-"`
+	XXX_sizecache        int32    `json:"-"`
+}
+
+func (m *BytesValue) Reset()         { *m = BytesValue{} }
+func (m *BytesValue) String() string { return proto.CompactTextString(m) }
+func (*BytesValue) ProtoMessage()    {}
+func (*BytesValue) Descriptor() ([]byte, []int) {
+	return fileDescriptor_wrappers_16c7c35c009f3253, []int{8}
+}
+func (*BytesValue) XXX_WellKnownType() string { return "BytesValue" }
+func (m *BytesValue) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_BytesValue.Unmarshal(m, b)
+}
+func (m *BytesValue) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_BytesValue.Marshal(b, m, deterministic)
+}
+func (dst *BytesValue) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_BytesValue.Merge(dst, src)
+}
+func (m *BytesValue) XXX_Size() int {
+	return xxx_messageInfo_BytesValue.Size(m)
+}
+func (m *BytesValue) XXX_DiscardUnknown() {
+	xxx_messageInfo_BytesValue.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_BytesValue proto.InternalMessageInfo
+
+func (m *BytesValue) GetValue() []byte {
+	if m != nil {
+		return m.Value
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*DoubleValue)(nil), "google.protobuf.DoubleValue")
+	proto.RegisterType((*FloatValue)(nil), "google.protobuf.FloatValue")
+	proto.RegisterType((*Int64Value)(nil), "google.protobuf.Int64Value")
+	proto.RegisterType((*UInt64Value)(nil), "google.protobuf.UInt64Value")
+	proto.RegisterType((*Int32Value)(nil), "google.protobuf.Int32Value")
+	proto.RegisterType((*UInt32Value)(nil), "google.protobuf.UInt32Value")
+	proto.RegisterType((*BoolValue)(nil), "google.protobuf.BoolValue")
+	proto.RegisterType((*StringValue)(nil), "google.protobuf.StringValue")
+	proto.RegisterType((*BytesValue)(nil), "google.protobuf.BytesValue")
+}
+
+func init() {
+	proto.RegisterFile("google/protobuf/wrappers.proto", fileDescriptor_wrappers_16c7c35c009f3253)
+}
+
+var fileDescriptor_wrappers_16c7c35c009f3253 = []byte{
+	// 259 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0xe2, 0x92, 0x4b, 0xcf, 0xcf, 0x4f,
+	0xcf, 0x49, 0xd5, 0x2f, 0x28, 0xca, 0x2f, 0xc9, 0x4f, 0x2a, 0x4d, 0xd3, 0x2f, 0x2f, 0x4a, 0x2c,
+	0x28, 0x48, 0x2d, 0x2a, 0xd6, 0x03, 0x8b, 0x08, 0xf1, 0x43, 0xe4, 0xf5, 0x60, 0xf2, 0x4a, 0xca,
+	0x5c, 0xdc, 0x2e, 0xf9, 0xa5, 0x49, 0x39, 0xa9, 0x61, 0x89, 0x39, 0xa5, 0xa9, 0x42, 0x22, 0x5c,
+	0xac, 0x65, 0x20, 0x86, 0x04, 0xa3, 0x02, 0xa3, 0x06, 0x63, 0x10, 0x84, 0xa3, 0xa4, 0xc4, 0xc5,
+	0xe5, 0x96, 0x93, 0x9f, 0x58, 0x82, 0x45, 0x0d, 0x13, 0x92, 0x1a, 0xcf, 0xbc, 0x12, 0x33, 0x13,
+	0x2c, 0x6a, 0x98, 0x61, 0x6a, 0x94, 0xb9, 0xb8, 0x43, 0x71, 0x29, 0x62, 0x41, 0x35, 0xc8, 0xd8,
+	0x08, 0x8b, 0x1a, 0x56, 0x34, 0x83, 0xb0, 0x2a, 0xe2, 0x85, 0x29, 0x52, 0xe4, 0xe2, 0x74, 0xca,
+	0xcf, 0xcf, 0xc1, 0xa2, 0x84, 0x03, 0xc9, 0x9c, 0xe0, 0x92, 0xa2, 0xcc, 0xbc, 0x74, 0x2c, 0x8a,
+	0x38, 0x91, 0x1c, 0xe4, 0x54, 0x59, 0x92, 0x5a, 0x8c, 0x45, 0x0d, 0x0f, 0x54, 0x8d, 0x53, 0x0d,
+	0x97, 0x70, 0x72, 0x7e, 0xae, 0x1e, 0x5a, 0xe8, 0x3a, 0xf1, 0x86, 0x43, 0x83, 0x3f, 0x00, 0x24,
+	0x12, 0xc0, 0x18, 0xa5, 0x95, 0x9e, 0x59, 0x92, 0x51, 0x9a, 0xa4, 0x97, 0x9c, 0x9f, 0xab, 0x9f,
+	0x9e, 0x9f, 0x93, 0x98, 0x97, 0x8e, 0x88, 0xaa, 0x82, 0x92, 0xca, 0x82, 0xd4, 0x62, 0x78, 0x8c,
+	0xfd, 0x60, 0x64, 0x5c, 0xc4, 0xc4, 0xec, 0x1e, 0xe0, 0xb4, 0x8a, 0x49, 0xce, 0x1d, 0x62, 0x6e,
+	0x00, 0x54, 0xa9, 0x5e, 0x78, 0x6a, 0x4e, 0x8e, 0x77, 0x5e, 0x7e, 0x79, 0x5e, 0x08, 0x48, 0x4b,
+	0x12, 0x1b, 0xd8, 0x0c, 0x63, 0x40, 0x00, 0x00, 0x00, 0xff, 0xff, 0x19, 0x6c, 0xb9, 0xb8, 0xfe,
+	0x01, 0x00, 0x00,
+}

vendor/github.com/golang/protobuf/ptypes/wrappers/wrappers.proto

@@ -0,0 +1,118 @@
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc.  All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+//     * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+//     * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Wrappers for primitive (non-message) types. These types are useful
+// for embedding primitives in the `google.protobuf.Any` type and for places
+// where we need to distinguish between the absence of a primitive
+// typed field and its default value.
+
+syntax = "proto3";
+
+package google.protobuf;
+
+option csharp_namespace = "Google.Protobuf.WellKnownTypes";
+option cc_enable_arenas = true;
+option go_package = "github.com/golang/protobuf/ptypes/wrappers";
+option java_package = "com.google.protobuf";
+option java_outer_classname = "WrappersProto";
+option java_multiple_files = true;
+option objc_class_prefix = "GPB";
+
+// Wrapper message for `double`.
+//
+// The JSON representation for `DoubleValue` is JSON number.
+message DoubleValue {
+  // The double value.
+  double value = 1;
+}
+
+// Wrapper message for `float`.
+//
+// The JSON representation for `FloatValue` is JSON number.
+message FloatValue {
+  // The float value.
+  float value = 1;
+}
+
+// Wrapper message for `int64`.
+//
+// The JSON representation for `Int64Value` is JSON string.
+message Int64Value {
+  // The int64 value.
+  int64 value = 1;
+}
+
+// Wrapper message for `uint64`.
+//
+// The JSON representation for `UInt64Value` is JSON string.
+message UInt64Value {
+  // The uint64 value.
+  uint64 value = 1;
+}
+
+// Wrapper message for `int32`.
+//
+// The JSON representation for `Int32Value` is JSON number.
+message Int32Value {
+  // The int32 value.
+  int32 value = 1;
+}
+
+// Wrapper message for `uint32`.
+//
+// The JSON representation for `UInt32Value` is JSON number.
+message UInt32Value {
+  // The uint32 value.
+  uint32 value = 1;
+}
+
+// Wrapper message for `bool`.
+//
+// The JSON representation for `BoolValue` is JSON `true` and `false`.
+message BoolValue {
+  // The bool value.
+  bool value = 1;
+}
+
+// Wrapper message for `string`.
+//
+// The JSON representation for `StringValue` is JSON string.
+message StringValue {
+  // The string value.
+  string value = 1;
+}
+
+// Wrapper message for `bytes`.
+//
+// The JSON representation for `BytesValue` is JSON string.
+message BytesValue {
+  // The bytes value.
+  bytes value = 1;
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/LICENSE.txt

@@ -0,0 +1,27 @@
+Copyright (c) 2015, Gengo, Inc.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without modification,
+are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+
+    * Neither the name of Gengo, Inc. nor the names of its
+      contributors may be used to endorse or promote products derived from this
+      software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

vendor/github.com/grpc-ecosystem/grpc-gateway/internal/BUILD.bazel

@@ -0,0 +1,22 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+load("@io_bazel_rules_go//proto:def.bzl", "go_proto_library")
+
+package(default_visibility = ["//visibility:public"])
+
+proto_library(
+    name = "internal_proto",
+    srcs = ["stream_chunk.proto"],
+    deps = ["@com_google_protobuf//:any_proto"],
+)
+
+go_proto_library(
+    name = "internal_go_proto",
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/internal",
+    proto = ":internal_proto",
+)
+
+go_library(
+    name = "go_default_library",
+    embed = [":internal_go_proto"],
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/internal",
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/internal/stream_chunk.pb.go

@@ -0,0 +1,118 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// source: internal/stream_chunk.proto
+
+package internal
+
+import proto "github.com/golang/protobuf/proto"
+import fmt "fmt"
+import math "math"
+import any "github.com/golang/protobuf/ptypes/any"
+
+// Reference imports to suppress errors if they are not otherwise used.
+var _ = proto.Marshal
+var _ = fmt.Errorf
+var _ = math.Inf
+
+// This is a compile-time assertion to ensure that this generated file
+// is compatible with the proto package it is being compiled against.
+// A compilation error at this line likely means your copy of the
+// proto package needs to be updated.
+const _ = proto.ProtoPackageIsVersion2 // please upgrade the proto package
+
+// StreamError is a response type which is returned when
+// streaming rpc returns an error.
+type StreamError struct {
+	GrpcCode             int32      `protobuf:"varint,1,opt,name=grpc_code,json=grpcCode,proto3" json:"grpc_code,omitempty"`
+	HttpCode             int32      `protobuf:"varint,2,opt,name=http_code,json=httpCode,proto3" json:"http_code,omitempty"`
+	Message              string     `protobuf:"bytes,3,opt,name=message,proto3" json:"message,omitempty"`
+	HttpStatus           string     `protobuf:"bytes,4,opt,name=http_status,json=httpStatus,proto3" json:"http_status,omitempty"`
+	Details              []*any.Any `protobuf:"bytes,5,rep,name=details,proto3" json:"details,omitempty"`
+	XXX_NoUnkeyedLiteral struct{}   `json:"-"`
+	XXX_unrecognized     []byte     `json:"-"`
+	XXX_sizecache        int32      `json:"-"`
+}
+
+func (m *StreamError) Reset()         { *m = StreamError{} }
+func (m *StreamError) String() string { return proto.CompactTextString(m) }
+func (*StreamError) ProtoMessage()    {}
+func (*StreamError) Descriptor() ([]byte, []int) {
+	return fileDescriptor_stream_chunk_cac6867f460b29a5, []int{0}
+}
+func (m *StreamError) XXX_Unmarshal(b []byte) error {
+	return xxx_messageInfo_StreamError.Unmarshal(m, b)
+}
+func (m *StreamError) XXX_Marshal(b []byte, deterministic bool) ([]byte, error) {
+	return xxx_messageInfo_StreamError.Marshal(b, m, deterministic)
+}
+func (dst *StreamError) XXX_Merge(src proto.Message) {
+	xxx_messageInfo_StreamError.Merge(dst, src)
+}
+func (m *StreamError) XXX_Size() int {
+	return xxx_messageInfo_StreamError.Size(m)
+}
+func (m *StreamError) XXX_DiscardUnknown() {
+	xxx_messageInfo_StreamError.DiscardUnknown(m)
+}
+
+var xxx_messageInfo_StreamError proto.InternalMessageInfo
+
+func (m *StreamError) GetGrpcCode() int32 {
+	if m != nil {
+		return m.GrpcCode
+	}
+	return 0
+}
+
+func (m *StreamError) GetHttpCode() int32 {
+	if m != nil {
+		return m.HttpCode
+	}
+	return 0
+}
+
+func (m *StreamError) GetMessage() string {
+	if m != nil {
+		return m.Message
+	}
+	return ""
+}
+
+func (m *StreamError) GetHttpStatus() string {
+	if m != nil {
+		return m.HttpStatus
+	}
+	return ""
+}
+
+func (m *StreamError) GetDetails() []*any.Any {
+	if m != nil {
+		return m.Details
+	}
+	return nil
+}
+
+func init() {
+	proto.RegisterType((*StreamError)(nil), "grpc.gateway.runtime.StreamError")
+}
+
+func init() {
+	proto.RegisterFile("internal/stream_chunk.proto", fileDescriptor_stream_chunk_cac6867f460b29a5)
+}
+
+var fileDescriptor_stream_chunk_cac6867f460b29a5 = []byte{
+	// 223 bytes of a gzipped FileDescriptorProto
+	0x1f, 0x8b, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0xff, 0x34, 0x90, 0x41, 0x4e, 0xc3, 0x30,
+	0x10, 0x45, 0x15, 0x4a, 0x69, 0x3b, 0xd9, 0x45, 0x5d, 0x18, 0xba, 0x20, 0x62, 0x95, 0x95, 0x23,
+	0xc1, 0x09, 0x00, 0x71, 0x81, 0x74, 0xc7, 0xa6, 0x9a, 0x26, 0x83, 0x13, 0x91, 0xd8, 0xd1, 0x78,
+	0x22, 0x94, 0x6b, 0x71, 0xc2, 0xca, 0x8e, 0xb2, 0xf4, 0x7b, 0x7f, 0xbe, 0xbe, 0x0c, 0xa7, 0xce,
+	0x0a, 0xb1, 0xc5, 0xbe, 0xf4, 0xc2, 0x84, 0xc3, 0xa5, 0x6e, 0x27, 0xfb, 0xab, 0x47, 0x76, 0xe2,
+	0xb2, 0xa3, 0xe1, 0xb1, 0xd6, 0x06, 0x85, 0xfe, 0x70, 0xd6, 0x3c, 0x59, 0xe9, 0x06, 0x7a, 0x7a,
+	0x34, 0xce, 0x99, 0x9e, 0xca, 0x98, 0xb9, 0x4e, 0x3f, 0x25, 0xda, 0x79, 0x39, 0x78, 0xf9, 0x4f,
+	0x20, 0x3d, 0xc7, 0x9e, 0x2f, 0x66, 0xc7, 0xd9, 0x09, 0x0e, 0xa1, 0xe2, 0x52, 0xbb, 0x86, 0x54,
+	0x92, 0x27, 0xc5, 0xb6, 0xda, 0x07, 0xf0, 0xe9, 0x1a, 0x0a, 0xb2, 0x15, 0x19, 0x17, 0x79, 0xb7,
+	0xc8, 0x00, 0xa2, 0x54, 0xb0, 0x1b, 0xc8, 0x7b, 0x34, 0xa4, 0x36, 0x79, 0x52, 0x1c, 0xaa, 0xf5,
+	0x99, 0x3d, 0x43, 0x1a, 0xcf, 0xbc, 0xa0, 0x4c, 0x5e, 0xdd, 0x47, 0x0b, 0x01, 0x9d, 0x23, 0xc9,
+	0x34, 0xec, 0x1a, 0x12, 0xec, 0x7a, 0xaf, 0xb6, 0xf9, 0xa6, 0x48, 0x5f, 0x8f, 0x7a, 0x59, 0xac,
+	0xd7, 0xc5, 0xfa, 0xdd, 0xce, 0xd5, 0x1a, 0xfa, 0x80, 0xef, 0xfd, 0xfa, 0x09, 0xd7, 0x87, 0x18,
+	0x79, 0xbb, 0x05, 0x00, 0x00, 0xff, 0xff, 0x0d, 0x7d, 0xa5, 0x18, 0x17, 0x01, 0x00, 0x00,
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/internal/stream_chunk.proto

@@ -0,0 +1,15 @@
+syntax = "proto3";
+package grpc.gateway.runtime;
+option go_package = "internal";
+
+import "google/protobuf/any.proto";
+
+// StreamError is a response type which is returned when
+// streaming rpc returns an error.
+message StreamError {
+	int32 grpc_code = 1;
+	int32 http_code = 2;
+	string message = 3;
+	string http_status = 4;
+	repeated google.protobuf.Any details = 5;
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/BUILD.bazel

@@ -0,0 +1,80 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+package(default_visibility = ["//visibility:public"])
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "context.go",
+        "convert.go",
+        "doc.go",
+        "errors.go",
+        "fieldmask.go",
+        "handler.go",
+        "marshal_json.go",
+        "marshal_jsonpb.go",
+        "marshal_proto.go",
+        "marshaler.go",
+        "marshaler_registry.go",
+        "mux.go",
+        "pattern.go",
+        "proto2_convert.go",
+        "proto_errors.go",
+        "query.go",
+    ],
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/runtime",
+    deps = [
+        "//internal:go_default_library",
+        "//utilities:go_default_library",
+        "@com_github_golang_protobuf//jsonpb:go_default_library_gen",
+        "@com_github_golang_protobuf//proto:go_default_library",
+        "@com_github_golang_protobuf//protoc-gen-go/generator:go_default_library_gen",
+        "@io_bazel_rules_go//proto/wkt:any_go_proto",
+        "@io_bazel_rules_go//proto/wkt:duration_go_proto",
+        "@io_bazel_rules_go//proto/wkt:field_mask_go_proto",
+        "@io_bazel_rules_go//proto/wkt:timestamp_go_proto",
+        "@io_bazel_rules_go//proto/wkt:wrappers_go_proto",
+        "@org_golang_google_grpc//codes:go_default_library",
+        "@org_golang_google_grpc//grpclog:go_default_library",
+        "@org_golang_google_grpc//metadata:go_default_library",
+        "@org_golang_google_grpc//status:go_default_library",
+    ],
+)
+
+go_test(
+    name = "go_default_test",
+    size = "small",
+    srcs = [
+        "context_test.go",
+        "errors_test.go",
+        "fieldmask_test.go",
+        "handler_test.go",
+        "marshal_json_test.go",
+        "marshal_jsonpb_test.go",
+        "marshal_proto_test.go",
+        "marshaler_registry_test.go",
+        "mux_test.go",
+        "pattern_test.go",
+        "query_test.go",
+    ],
+    embed = [":go_default_library"],
+    deps = [
+        "//examples/proto/examplepb:go_default_library",
+        "//internal:go_default_library",
+        "//utilities:go_default_library",
+        "@com_github_golang_protobuf//jsonpb:go_default_library_gen",
+        "@com_github_golang_protobuf//proto:go_default_library",
+        "@com_github_golang_protobuf//ptypes:go_default_library_gen",
+        "@go_googleapis//google/rpc:errdetails_go_proto",
+        "@io_bazel_rules_go//proto/wkt:duration_go_proto",
+        "@io_bazel_rules_go//proto/wkt:empty_go_proto",
+        "@io_bazel_rules_go//proto/wkt:field_mask_go_proto",
+        "@io_bazel_rules_go//proto/wkt:struct_go_proto",
+        "@io_bazel_rules_go//proto/wkt:timestamp_go_proto",
+        "@io_bazel_rules_go//proto/wkt:wrappers_go_proto",
+        "@org_golang_google_grpc//:go_default_library",
+        "@org_golang_google_grpc//codes:go_default_library",
+        "@org_golang_google_grpc//metadata:go_default_library",
+        "@org_golang_google_grpc//status:go_default_library",
+    ],
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/context.go

@@ -0,0 +1,210 @@
+package runtime
+
+import (
+	"context"
+	"encoding/base64"
+	"fmt"
+	"net"
+	"net/http"
+	"net/textproto"
+	"strconv"
+	"strings"
+	"time"
+
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+// MetadataHeaderPrefix is the http prefix that represents custom metadata
+// parameters to or from a gRPC call.
+const MetadataHeaderPrefix = "Grpc-Metadata-"
+
+// MetadataPrefix is prepended to permanent HTTP header keys (as specified
+// by the IANA) when added to the gRPC context.
+const MetadataPrefix = "grpcgateway-"
+
+// MetadataTrailerPrefix is prepended to gRPC metadata as it is converted to
+// HTTP headers in a response handled by grpc-gateway
+const MetadataTrailerPrefix = "Grpc-Trailer-"
+
+const metadataGrpcTimeout = "Grpc-Timeout"
+const metadataHeaderBinarySuffix = "-Bin"
+
+const xForwardedFor = "X-Forwarded-For"
+const xForwardedHost = "X-Forwarded-Host"
+
+var (
+	// DefaultContextTimeout is used for gRPC call context.WithTimeout whenever a Grpc-Timeout inbound
+	// header isn't present. If the value is 0 the sent `context` will not have a timeout.
+	DefaultContextTimeout = 0 * time.Second
+)
+
+func decodeBinHeader(v string) ([]byte, error) {
+	if len(v)%4 == 0 {
+		// Input was padded, or padding was not necessary.
+		return base64.StdEncoding.DecodeString(v)
+	}
+	return base64.RawStdEncoding.DecodeString(v)
+}
+
+/*
+AnnotateContext adds context information such as metadata from the request.
+
+At a minimum, the RemoteAddr is included in the fashion of "X-Forwarded-For",
+except that the forwarded destination is not another HTTP service but rather
+a gRPC service.
+*/
+func AnnotateContext(ctx context.Context, mux *ServeMux, req *http.Request) (context.Context, error) {
+	var pairs []string
+	timeout := DefaultContextTimeout
+	if tm := req.Header.Get(metadataGrpcTimeout); tm != "" {
+		var err error
+		timeout, err = timeoutDecode(tm)
+		if err != nil {
+			return nil, status.Errorf(codes.InvalidArgument, "invalid grpc-timeout: %s", tm)
+		}
+	}
+
+	for key, vals := range req.Header {
+		for _, val := range vals {
+			key = textproto.CanonicalMIMEHeaderKey(key)
+			// For backwards-compatibility, pass through 'authorization' header with no prefix.
+			if key == "Authorization" {
+				pairs = append(pairs, "authorization", val)
+			}
+			if h, ok := mux.incomingHeaderMatcher(key); ok {
+				// Handles "-bin" metadata in grpc, since grpc will do another base64
+				// encode before sending to server, we need to decode it first.
+				if strings.HasSuffix(key, metadataHeaderBinarySuffix) {
+					b, err := decodeBinHeader(val)
+					if err != nil {
+						return nil, status.Errorf(codes.InvalidArgument, "invalid binary header %s: %s", key, err)
+					}
+
+					val = string(b)
+				}
+				pairs = append(pairs, h, val)
+			}
+		}
+	}
+	if host := req.Header.Get(xForwardedHost); host != "" {
+		pairs = append(pairs, strings.ToLower(xForwardedHost), host)
+	} else if req.Host != "" {
+		pairs = append(pairs, strings.ToLower(xForwardedHost), req.Host)
+	}
+
+	if addr := req.RemoteAddr; addr != "" {
+		if remoteIP, _, err := net.SplitHostPort(addr); err == nil {
+			if fwd := req.Header.Get(xForwardedFor); fwd == "" {
+				pairs = append(pairs, strings.ToLower(xForwardedFor), remoteIP)
+			} else {
+				pairs = append(pairs, strings.ToLower(xForwardedFor), fmt.Sprintf("%s, %s", fwd, remoteIP))
+			}
+		} else {
+			grpclog.Infof("invalid remote addr: %s", addr)
+		}
+	}
+
+	if timeout != 0 {
+		ctx, _ = context.WithTimeout(ctx, timeout)
+	}
+	if len(pairs) == 0 {
+		return ctx, nil
+	}
+	md := metadata.Pairs(pairs...)
+	for _, mda := range mux.metadataAnnotators {
+		md = metadata.Join(md, mda(ctx, req))
+	}
+	return metadata.NewOutgoingContext(ctx, md), nil
+}
+
+// ServerMetadata consists of metadata sent from gRPC server.
+type ServerMetadata struct {
+	HeaderMD  metadata.MD
+	TrailerMD metadata.MD
+}
+
+type serverMetadataKey struct{}
+
+// NewServerMetadataContext creates a new context with ServerMetadata
+func NewServerMetadataContext(ctx context.Context, md ServerMetadata) context.Context {
+	return context.WithValue(ctx, serverMetadataKey{}, md)
+}
+
+// ServerMetadataFromContext returns the ServerMetadata in ctx
+func ServerMetadataFromContext(ctx context.Context) (md ServerMetadata, ok bool) {
+	md, ok = ctx.Value(serverMetadataKey{}).(ServerMetadata)
+	return
+}
+
+func timeoutDecode(s string) (time.Duration, error) {
+	size := len(s)
+	if size < 2 {
+		return 0, fmt.Errorf("timeout string is too short: %q", s)
+	}
+	d, ok := timeoutUnitToDuration(s[size-1])
+	if !ok {
+		return 0, fmt.Errorf("timeout unit is not recognized: %q", s)
+	}
+	t, err := strconv.ParseInt(s[:size-1], 10, 64)
+	if err != nil {
+		return 0, err
+	}
+	return d * time.Duration(t), nil
+}
+
+func timeoutUnitToDuration(u uint8) (d time.Duration, ok bool) {
+	switch u {
+	case 'H':
+		return time.Hour, true
+	case 'M':
+		return time.Minute, true
+	case 'S':
+		return time.Second, true
+	case 'm':
+		return time.Millisecond, true
+	case 'u':
+		return time.Microsecond, true
+	case 'n':
+		return time.Nanosecond, true
+	default:
+	}
+	return
+}
+
+// isPermanentHTTPHeader checks whether hdr belongs to the list of
+// permenant request headers maintained by IANA.
+// http://www.iana.org/assignments/message-headers/message-headers.xml
+func isPermanentHTTPHeader(hdr string) bool {
+	switch hdr {
+	case
+		"Accept",
+		"Accept-Charset",
+		"Accept-Language",
+		"Accept-Ranges",
+		"Authorization",
+		"Cache-Control",
+		"Content-Type",
+		"Cookie",
+		"Date",
+		"Expect",
+		"From",
+		"Host",
+		"If-Match",
+		"If-Modified-Since",
+		"If-None-Match",
+		"If-Schedule-Tag-Match",
+		"If-Unmodified-Since",
+		"Max-Forwards",
+		"Origin",
+		"Pragma",
+		"Referer",
+		"User-Agent",
+		"Via",
+		"Warning":
+		return true
+	}
+	return false
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/convert.go

@@ -0,0 +1,312 @@
+package runtime
+
+import (
+	"encoding/base64"
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/ptypes/duration"
+	"github.com/golang/protobuf/ptypes/timestamp"
+	"github.com/golang/protobuf/ptypes/wrappers"
+)
+
+// String just returns the given string.
+// It is just for compatibility to other types.
+func String(val string) (string, error) {
+	return val, nil
+}
+
+// StringSlice converts 'val' where individual strings are separated by
+// 'sep' into a string slice.
+func StringSlice(val, sep string) ([]string, error) {
+	return strings.Split(val, sep), nil
+}
+
+// Bool converts the given string representation of a boolean value into bool.
+func Bool(val string) (bool, error) {
+	return strconv.ParseBool(val)
+}
+
+// BoolSlice converts 'val' where individual booleans are separated by
+// 'sep' into a bool slice.
+func BoolSlice(val, sep string) ([]bool, error) {
+	s := strings.Split(val, sep)
+	values := make([]bool, len(s))
+	for i, v := range s {
+		value, err := Bool(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Float64 converts the given string representation into representation of a floating point number into float64.
+func Float64(val string) (float64, error) {
+	return strconv.ParseFloat(val, 64)
+}
+
+// Float64Slice converts 'val' where individual floating point numbers are separated by
+// 'sep' into a float64 slice.
+func Float64Slice(val, sep string) ([]float64, error) {
+	s := strings.Split(val, sep)
+	values := make([]float64, len(s))
+	for i, v := range s {
+		value, err := Float64(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Float32 converts the given string representation of a floating point number into float32.
+func Float32(val string) (float32, error) {
+	f, err := strconv.ParseFloat(val, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(f), nil
+}
+
+// Float32Slice converts 'val' where individual floating point numbers are separated by
+// 'sep' into a float32 slice.
+func Float32Slice(val, sep string) ([]float32, error) {
+	s := strings.Split(val, sep)
+	values := make([]float32, len(s))
+	for i, v := range s {
+		value, err := Float32(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Int64 converts the given string representation of an integer into int64.
+func Int64(val string) (int64, error) {
+	return strconv.ParseInt(val, 0, 64)
+}
+
+// Int64Slice converts 'val' where individual integers are separated by
+// 'sep' into a int64 slice.
+func Int64Slice(val, sep string) ([]int64, error) {
+	s := strings.Split(val, sep)
+	values := make([]int64, len(s))
+	for i, v := range s {
+		value, err := Int64(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Int32 converts the given string representation of an integer into int32.
+func Int32(val string) (int32, error) {
+	i, err := strconv.ParseInt(val, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(i), nil
+}
+
+// Int32Slice converts 'val' where individual integers are separated by
+// 'sep' into a int32 slice.
+func Int32Slice(val, sep string) ([]int32, error) {
+	s := strings.Split(val, sep)
+	values := make([]int32, len(s))
+	for i, v := range s {
+		value, err := Int32(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Uint64 converts the given string representation of an integer into uint64.
+func Uint64(val string) (uint64, error) {
+	return strconv.ParseUint(val, 0, 64)
+}
+
+// Uint64Slice converts 'val' where individual integers are separated by
+// 'sep' into a uint64 slice.
+func Uint64Slice(val, sep string) ([]uint64, error) {
+	s := strings.Split(val, sep)
+	values := make([]uint64, len(s))
+	for i, v := range s {
+		value, err := Uint64(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Uint32 converts the given string representation of an integer into uint32.
+func Uint32(val string) (uint32, error) {
+	i, err := strconv.ParseUint(val, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return uint32(i), nil
+}
+
+// Uint32Slice converts 'val' where individual integers are separated by
+// 'sep' into a uint32 slice.
+func Uint32Slice(val, sep string) ([]uint32, error) {
+	s := strings.Split(val, sep)
+	values := make([]uint32, len(s))
+	for i, v := range s {
+		value, err := Uint32(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Bytes converts the given string representation of a byte sequence into a slice of bytes
+// A bytes sequence is encoded in URL-safe base64 without padding
+func Bytes(val string) ([]byte, error) {
+	b, err := base64.StdEncoding.DecodeString(val)
+	if err != nil {
+		b, err = base64.URLEncoding.DecodeString(val)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return b, nil
+}
+
+// BytesSlice converts 'val' where individual bytes sequences, encoded in URL-safe
+// base64 without padding, are separated by 'sep' into a slice of bytes slices slice.
+func BytesSlice(val, sep string) ([][]byte, error) {
+	s := strings.Split(val, sep)
+	values := make([][]byte, len(s))
+	for i, v := range s {
+		value, err := Bytes(v)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+// Timestamp converts the given RFC3339 formatted string into a timestamp.Timestamp.
+func Timestamp(val string) (*timestamp.Timestamp, error) {
+	var r *timestamp.Timestamp
+	err := jsonpb.UnmarshalString(val, r)
+	return r, err
+}
+
+// Duration converts the given string into a timestamp.Duration.
+func Duration(val string) (*duration.Duration, error) {
+	var r *duration.Duration
+	err := jsonpb.UnmarshalString(val, r)
+	return r, err
+}
+
+// Enum converts the given string into an int32 that should be type casted into the
+// correct enum proto type.
+func Enum(val string, enumValMap map[string]int32) (int32, error) {
+	e, ok := enumValMap[val]
+	if ok {
+		return e, nil
+	}
+
+	i, err := Int32(val)
+	if err != nil {
+		return 0, fmt.Errorf("%s is not valid", val)
+	}
+	for _, v := range enumValMap {
+		if v == i {
+			return i, nil
+		}
+	}
+	return 0, fmt.Errorf("%s is not valid", val)
+}
+
+// EnumSlice converts 'val' where individual enums are separated by 'sep'
+// into a int32 slice. Each individual int32 should be type casted into the
+// correct enum proto type.
+func EnumSlice(val, sep string, enumValMap map[string]int32) ([]int32, error) {
+	s := strings.Split(val, sep)
+	values := make([]int32, len(s))
+	for i, v := range s {
+		value, err := Enum(v, enumValMap)
+		if err != nil {
+			return values, err
+		}
+		values[i] = value
+	}
+	return values, nil
+}
+
+/*
+	Support fot google.protobuf.wrappers on top of primitive types
+*/
+
+// StringValue well-known type support as wrapper around string type
+func StringValue(val string) (*wrappers.StringValue, error) {
+	return &wrappers.StringValue{Value: val}, nil
+}
+
+// FloatValue well-known type support as wrapper around float32 type
+func FloatValue(val string) (*wrappers.FloatValue, error) {
+	parsedVal, err := Float32(val)
+	return &wrappers.FloatValue{Value: parsedVal}, err
+}
+
+// DoubleValue well-known type support as wrapper around float64 type
+func DoubleValue(val string) (*wrappers.DoubleValue, error) {
+	parsedVal, err := Float64(val)
+	return &wrappers.DoubleValue{Value: parsedVal}, err
+}
+
+// BoolValue well-known type support as wrapper around bool type
+func BoolValue(val string) (*wrappers.BoolValue, error) {
+	parsedVal, err := Bool(val)
+	return &wrappers.BoolValue{Value: parsedVal}, err
+}
+
+// Int32Value well-known type support as wrapper around int32 type
+func Int32Value(val string) (*wrappers.Int32Value, error) {
+	parsedVal, err := Int32(val)
+	return &wrappers.Int32Value{Value: parsedVal}, err
+}
+
+// UInt32Value well-known type support as wrapper around uint32 type
+func UInt32Value(val string) (*wrappers.UInt32Value, error) {
+	parsedVal, err := Uint32(val)
+	return &wrappers.UInt32Value{Value: parsedVal}, err
+}
+
+// Int64Value well-known type support as wrapper around int64 type
+func Int64Value(val string) (*wrappers.Int64Value, error) {
+	parsedVal, err := Int64(val)
+	return &wrappers.Int64Value{Value: parsedVal}, err
+}
+
+// UInt64Value well-known type support as wrapper around uint64 type
+func UInt64Value(val string) (*wrappers.UInt64Value, error) {
+	parsedVal, err := Uint64(val)
+	return &wrappers.UInt64Value{Value: parsedVal}, err
+}
+
+// BytesValue well-known type support as wrapper around bytes[] type
+func BytesValue(val string) (*wrappers.BytesValue, error) {
+	parsedVal, err := Bytes(val)
+	return &wrappers.BytesValue{Value: parsedVal}, err
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/doc.go

@@ -0,0 +1,5 @@
+/*
+Package runtime contains runtime helper functions used by
+servers which protoc-gen-grpc-gateway generates.
+*/
+package runtime

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/errors.go

@@ -0,0 +1,136 @@
+package runtime
+
+import (
+	"context"
+	"io"
+	"net/http"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes/any"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/status"
+)
+
+// HTTPStatusFromCode converts a gRPC error code into the corresponding HTTP response status.
+// See: https://github.com/googleapis/googleapis/blob/master/google/rpc/code.proto
+func HTTPStatusFromCode(code codes.Code) int {
+	switch code {
+	case codes.OK:
+		return http.StatusOK
+	case codes.Canceled:
+		return http.StatusRequestTimeout
+	case codes.Unknown:
+		return http.StatusInternalServerError
+	case codes.InvalidArgument:
+		return http.StatusBadRequest
+	case codes.DeadlineExceeded:
+		return http.StatusGatewayTimeout
+	case codes.NotFound:
+		return http.StatusNotFound
+	case codes.AlreadyExists:
+		return http.StatusConflict
+	case codes.PermissionDenied:
+		return http.StatusForbidden
+	case codes.Unauthenticated:
+		return http.StatusUnauthorized
+	case codes.ResourceExhausted:
+		return http.StatusTooManyRequests
+	case codes.FailedPrecondition:
+		return http.StatusPreconditionFailed
+	case codes.Aborted:
+		return http.StatusConflict
+	case codes.OutOfRange:
+		return http.StatusBadRequest
+	case codes.Unimplemented:
+		return http.StatusNotImplemented
+	case codes.Internal:
+		return http.StatusInternalServerError
+	case codes.Unavailable:
+		return http.StatusServiceUnavailable
+	case codes.DataLoss:
+		return http.StatusInternalServerError
+	}
+
+	grpclog.Infof("Unknown gRPC error code: %v", code)
+	return http.StatusInternalServerError
+}
+
+var (
+	// HTTPError replies to the request with the error.
+	// You can set a custom function to this variable to customize error format.
+	HTTPError = DefaultHTTPError
+	// OtherErrorHandler handles the following error used by the gateway: StatusMethodNotAllowed StatusNotFound and StatusBadRequest
+	OtherErrorHandler = DefaultOtherErrorHandler
+)
+
+type errorBody struct {
+	Error   string     `protobuf:"bytes,1,name=error" json:"error"`
+	// This is to make the error more compatible with users that expect errors to be Status objects:
+	// https://github.com/grpc/grpc/blob/master/src/proto/grpc/status/status.proto
+	// It should be the exact same message as the Error field.
+	Message string     `protobuf:"bytes,1,name=message" json:"message"`
+	Code    int32      `protobuf:"varint,2,name=code" json:"code"`
+	Details []*any.Any `protobuf:"bytes,3,rep,name=details" json:"details,omitempty"`
+}
+
+// Make this also conform to proto.Message for builtin JSONPb Marshaler
+func (e *errorBody) Reset()         { *e = errorBody{} }
+func (e *errorBody) String() string { return proto.CompactTextString(e) }
+func (*errorBody) ProtoMessage()    {}
+
+// DefaultHTTPError is the default implementation of HTTPError.
+// If "err" is an error from gRPC system, the function replies with the status code mapped by HTTPStatusFromCode.
+// If otherwise, it replies with http.StatusInternalServerError.
+//
+// The response body returned by this function is a JSON object,
+// which contains a member whose key is "error" and whose value is err.Error().
+func DefaultHTTPError(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, _ *http.Request, err error) {
+	const fallback = `{"error": "failed to marshal error message"}`
+
+	w.Header().Del("Trailer")
+	w.Header().Set("Content-Type", marshaler.ContentType())
+
+	s, ok := status.FromError(err)
+	if !ok {
+		s = status.New(codes.Unknown, err.Error())
+	}
+
+	body := &errorBody{
+		Error:   s.Message(),
+		Message: s.Message(),
+		Code:    int32(s.Code()),
+		Details: s.Proto().GetDetails(),
+	}
+
+	buf, merr := marshaler.Marshal(body)
+	if merr != nil {
+		grpclog.Infof("Failed to marshal error message %q: %v", body, merr)
+		w.WriteHeader(http.StatusInternalServerError)
+		if _, err := io.WriteString(w, fallback); err != nil {
+			grpclog.Infof("Failed to write response: %v", err)
+		}
+		return
+	}
+
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+	}
+
+	handleForwardResponseServerMetadata(w, mux, md)
+	handleForwardResponseTrailerHeader(w, md)
+	st := HTTPStatusFromCode(s.Code())
+	w.WriteHeader(st)
+	if _, err := w.Write(buf); err != nil {
+		grpclog.Infof("Failed to write response: %v", err)
+	}
+
+	handleForwardResponseTrailer(w, md)
+}
+
+// DefaultOtherErrorHandler is the default implementation of OtherErrorHandler.
+// It simply writes a string representation of the given error into "w".
+func DefaultOtherErrorHandler(w http.ResponseWriter, _ *http.Request, msg string, code int) {
+	http.Error(w, msg, code)
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/fieldmask.go

@@ -0,0 +1,70 @@
+package runtime
+
+import (
+	"encoding/json"
+	"io"
+	"strings"
+
+	"github.com/golang/protobuf/protoc-gen-go/generator"
+	"google.golang.org/genproto/protobuf/field_mask"
+)
+
+// FieldMaskFromRequestBody creates a FieldMask printing all complete paths from the JSON body.
+func FieldMaskFromRequestBody(r io.Reader) (*field_mask.FieldMask, error) {
+	fm := &field_mask.FieldMask{}
+	var root interface{}
+	if err := json.NewDecoder(r).Decode(&root); err != nil {
+		if err == io.EOF {
+			return fm, nil
+		}
+		return nil, err
+	}
+
+	queue := []fieldMaskPathItem{{node: root}}
+	for len(queue) > 0 {
+		// dequeue an item
+		item := queue[0]
+		queue = queue[1:]
+
+		if m, ok := item.node.(map[string]interface{}); ok {
+			// if the item is an object, then enqueue all of its children
+			for k, v := range m {
+				queue = append(queue, fieldMaskPathItem{path: append(item.path, generator.CamelCase(k)), node: v})
+			}
+		} else if len(item.path) > 0 {
+			// otherwise, it's a leaf node so print its path
+			fm.Paths = append(fm.Paths, strings.Join(item.path, "."))
+		}
+	}
+
+	return fm, nil
+}
+
+// fieldMaskPathItem stores a in-progress deconstruction of a path for a fieldmask
+type fieldMaskPathItem struct {
+	// the list of prior fields leading up to node
+	path []string
+
+	// a generic decoded json object the current item to inspect for further path extraction
+	node interface{}
+}
+
+// CamelCaseFieldMask updates the given FieldMask by converting all of its paths to CamelCase, using the same heuristic
+// that's used for naming protobuf fields in Go.
+func CamelCaseFieldMask(mask *field_mask.FieldMask) {
+	if mask == nil || mask.Paths == nil {
+		return
+	}
+
+	var newPaths []string
+	for _, path := range mask.Paths {
+		lowerCasedParts := strings.Split(path, ".")
+		var camelCasedParts []string
+		for _, part := range lowerCasedParts {
+			camelCasedParts = append(camelCasedParts, generator.CamelCase(part))
+		}
+		newPaths = append(newPaths, strings.Join(camelCasedParts, "."))
+	}
+
+	mask.Paths = newPaths
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/handler.go

@@ -0,0 +1,206 @@
+package runtime
+
+import (
+	"fmt"
+	"io"
+	"net/http"
+	"net/textproto"
+
+	"context"
+	"github.com/golang/protobuf/proto"
+	"github.com/golang/protobuf/ptypes/any"
+	"github.com/grpc-ecosystem/grpc-gateway/internal"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/status"
+)
+
+// ForwardResponseStream forwards the stream from gRPC server to REST client.
+func ForwardResponseStream(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, req *http.Request, recv func() (proto.Message, error), opts ...func(context.Context, http.ResponseWriter, proto.Message) error) {
+	f, ok := w.(http.Flusher)
+	if !ok {
+		grpclog.Infof("Flush not supported in %T", w)
+		http.Error(w, "unexpected type of web server", http.StatusInternalServerError)
+		return
+	}
+
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+		http.Error(w, "unexpected error", http.StatusInternalServerError)
+		return
+	}
+	handleForwardResponseServerMetadata(w, mux, md)
+
+	w.Header().Set("Transfer-Encoding", "chunked")
+	w.Header().Set("Content-Type", marshaler.ContentType())
+	if err := handleForwardResponseOptions(ctx, w, nil, opts); err != nil {
+		HTTPError(ctx, mux, marshaler, w, req, err)
+		return
+	}
+
+	var delimiter []byte
+	if d, ok := marshaler.(Delimited); ok {
+		delimiter = d.Delimiter()
+	} else {
+		delimiter = []byte("\n")
+	}
+
+	var wroteHeader bool
+	for {
+		resp, err := recv()
+		if err == io.EOF {
+			return
+		}
+		if err != nil {
+			handleForwardResponseStreamError(wroteHeader, marshaler, w, err)
+			return
+		}
+		if err := handleForwardResponseOptions(ctx, w, resp, opts); err != nil {
+			handleForwardResponseStreamError(wroteHeader, marshaler, w, err)
+			return
+		}
+
+		buf, err := marshaler.Marshal(streamChunk(resp, nil))
+		if err != nil {
+			grpclog.Infof("Failed to marshal response chunk: %v", err)
+			handleForwardResponseStreamError(wroteHeader, marshaler, w, err)
+			return
+		}
+		if _, err = w.Write(buf); err != nil {
+			grpclog.Infof("Failed to send response chunk: %v", err)
+			return
+		}
+		wroteHeader = true
+		if _, err = w.Write(delimiter); err != nil {
+			grpclog.Infof("Failed to send delimiter chunk: %v", err)
+			return
+		}
+		f.Flush()
+	}
+}
+
+func handleForwardResponseServerMetadata(w http.ResponseWriter, mux *ServeMux, md ServerMetadata) {
+	for k, vs := range md.HeaderMD {
+		if h, ok := mux.outgoingHeaderMatcher(k); ok {
+			for _, v := range vs {
+				w.Header().Add(h, v)
+			}
+		}
+	}
+}
+
+func handleForwardResponseTrailerHeader(w http.ResponseWriter, md ServerMetadata) {
+	for k := range md.TrailerMD {
+		tKey := textproto.CanonicalMIMEHeaderKey(fmt.Sprintf("%s%s", MetadataTrailerPrefix, k))
+		w.Header().Add("Trailer", tKey)
+	}
+}
+
+func handleForwardResponseTrailer(w http.ResponseWriter, md ServerMetadata) {
+	for k, vs := range md.TrailerMD {
+		tKey := fmt.Sprintf("%s%s", MetadataTrailerPrefix, k)
+		for _, v := range vs {
+			w.Header().Add(tKey, v)
+		}
+	}
+}
+
+// responseBody interface contains method for getting field for marshaling to the response body
+// this method is generated for response struct from the value of `response_body` in the `google.api.HttpRule`
+type responseBody interface {
+	XXX_ResponseBody() interface{}
+}
+
+// ForwardResponseMessage forwards the message "resp" from gRPC server to REST client.
+func ForwardResponseMessage(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, req *http.Request, resp proto.Message, opts ...func(context.Context, http.ResponseWriter, proto.Message) error) {
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+	}
+
+	handleForwardResponseServerMetadata(w, mux, md)
+	handleForwardResponseTrailerHeader(w, md)
+	w.Header().Set("Content-Type", marshaler.ContentType())
+	if err := handleForwardResponseOptions(ctx, w, resp, opts); err != nil {
+		HTTPError(ctx, mux, marshaler, w, req, err)
+		return
+	}
+	var buf []byte
+	var err error
+	if rb, ok := resp.(responseBody); ok {
+		buf, err = marshaler.Marshal(rb.XXX_ResponseBody())
+	} else {
+		buf, err = marshaler.Marshal(resp)
+	}
+	if err != nil {
+		grpclog.Infof("Marshal error: %v", err)
+		HTTPError(ctx, mux, marshaler, w, req, err)
+		return
+	}
+
+	if _, err = w.Write(buf); err != nil {
+		grpclog.Infof("Failed to write response: %v", err)
+	}
+
+	handleForwardResponseTrailer(w, md)
+}
+
+func handleForwardResponseOptions(ctx context.Context, w http.ResponseWriter, resp proto.Message, opts []func(context.Context, http.ResponseWriter, proto.Message) error) error {
+	if len(opts) == 0 {
+		return nil
+	}
+	for _, opt := range opts {
+		if err := opt(ctx, w, resp); err != nil {
+			grpclog.Infof("Error handling ForwardResponseOptions: %v", err)
+			return err
+		}
+	}
+	return nil
+}
+
+func handleForwardResponseStreamError(wroteHeader bool, marshaler Marshaler, w http.ResponseWriter, err error) {
+	buf, merr := marshaler.Marshal(streamChunk(nil, err))
+	if merr != nil {
+		grpclog.Infof("Failed to marshal an error: %v", merr)
+		return
+	}
+	if !wroteHeader {
+		s, ok := status.FromError(err)
+		if !ok {
+			s = status.New(codes.Unknown, err.Error())
+		}
+		w.WriteHeader(HTTPStatusFromCode(s.Code()))
+	}
+	if _, werr := w.Write(buf); werr != nil {
+		grpclog.Infof("Failed to notify error to client: %v", werr)
+		return
+	}
+}
+
+func streamChunk(result proto.Message, err error) map[string]proto.Message {
+	if err != nil {
+		grpcCode := codes.Unknown
+		grpcMessage := err.Error()
+		var grpcDetails []*any.Any
+		if s, ok := status.FromError(err); ok {
+			grpcCode = s.Code()
+			grpcMessage = s.Message()
+			grpcDetails = s.Proto().GetDetails()
+		}
+		httpCode := HTTPStatusFromCode(grpcCode)
+		return map[string]proto.Message{
+			"error": &internal.StreamError{
+				GrpcCode:   int32(grpcCode),
+				HttpCode:   int32(httpCode),
+				Message:    grpcMessage,
+				HttpStatus: http.StatusText(httpCode),
+				Details:    grpcDetails,
+			},
+		}
+	}
+	if result == nil {
+		return streamChunk(nil, fmt.Errorf("empty response"))
+	}
+	return map[string]proto.Message{"result": result}
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_json.go

@@ -0,0 +1,45 @@
+package runtime
+
+import (
+	"encoding/json"
+	"io"
+)
+
+// JSONBuiltin is a Marshaler which marshals/unmarshals into/from JSON
+// with the standard "encoding/json" package of Golang.
+// Although it is generally faster for simple proto messages than JSONPb,
+// it does not support advanced features of protobuf, e.g. map, oneof, ....
+//
+// The NewEncoder and NewDecoder types return *json.Encoder and
+// *json.Decoder respectively.
+type JSONBuiltin struct{}
+
+// ContentType always Returns "application/json".
+func (*JSONBuiltin) ContentType() string {
+	return "application/json"
+}
+
+// Marshal marshals "v" into JSON
+func (j *JSONBuiltin) Marshal(v interface{}) ([]byte, error) {
+	return json.Marshal(v)
+}
+
+// Unmarshal unmarshals JSON data into "v".
+func (j *JSONBuiltin) Unmarshal(data []byte, v interface{}) error {
+	return json.Unmarshal(data, v)
+}
+
+// NewDecoder returns a Decoder which reads JSON stream from "r".
+func (j *JSONBuiltin) NewDecoder(r io.Reader) Decoder {
+	return json.NewDecoder(r)
+}
+
+// NewEncoder returns an Encoder which writes JSON stream into "w".
+func (j *JSONBuiltin) NewEncoder(w io.Writer) Encoder {
+	return json.NewEncoder(w)
+}
+
+// Delimiter for newline encoded JSON streams.
+func (j *JSONBuiltin) Delimiter() []byte {
+	return []byte("\n")
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_jsonpb.go

@@ -0,0 +1,242 @@
+package runtime
+
+import (
+	"bytes"
+	"encoding/json"
+	"fmt"
+	"io"
+	"reflect"
+
+	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/proto"
+)
+
+// JSONPb is a Marshaler which marshals/unmarshals into/from JSON
+// with the "github.com/golang/protobuf/jsonpb".
+// It supports fully functionality of protobuf unlike JSONBuiltin.
+//
+// The NewDecoder method returns a DecoderWrapper, so the underlying
+// *json.Decoder methods can be used.
+type JSONPb jsonpb.Marshaler
+
+// ContentType always returns "application/json".
+func (*JSONPb) ContentType() string {
+	return "application/json"
+}
+
+// Marshal marshals "v" into JSON.
+func (j *JSONPb) Marshal(v interface{}) ([]byte, error) {
+	if _, ok := v.(proto.Message); !ok {
+		return j.marshalNonProtoField(v)
+	}
+
+	var buf bytes.Buffer
+	if err := j.marshalTo(&buf, v); err != nil {
+		return nil, err
+	}
+	return buf.Bytes(), nil
+}
+
+func (j *JSONPb) marshalTo(w io.Writer, v interface{}) error {
+	p, ok := v.(proto.Message)
+	if !ok {
+		buf, err := j.marshalNonProtoField(v)
+		if err != nil {
+			return err
+		}
+		_, err = w.Write(buf)
+		return err
+	}
+	return (*jsonpb.Marshaler)(j).Marshal(w, p)
+}
+
+var (
+	// protoMessageType is stored to prevent constant lookup of the same type at runtime.
+	protoMessageType = reflect.TypeOf((*proto.Message)(nil)).Elem()
+)
+
+// marshalNonProto marshals a non-message field of a protobuf message.
+// This function does not correctly marshals arbitrary data structure into JSON,
+// but it is only capable of marshaling non-message field values of protobuf,
+// i.e. primitive types, enums; pointers to primitives or enums; maps from
+// integer/string types to primitives/enums/pointers to messages.
+func (j *JSONPb) marshalNonProtoField(v interface{}) ([]byte, error) {
+	if v == nil {
+		return []byte("null"), nil
+	}
+	rv := reflect.ValueOf(v)
+	for rv.Kind() == reflect.Ptr {
+		if rv.IsNil() {
+			return []byte("null"), nil
+		}
+		rv = rv.Elem()
+	}
+
+	if rv.Kind() == reflect.Slice {
+		if rv.IsNil() {
+			if j.EmitDefaults {
+				return []byte("[]"), nil
+			}
+			return []byte("null"), nil
+		}
+
+		if rv.Type().Elem().Implements(protoMessageType) {
+			var buf bytes.Buffer
+			err := buf.WriteByte('[')
+			if err != nil {
+				return nil, err
+			}
+			for i := 0; i < rv.Len(); i++ {
+				if i != 0 {
+					err = buf.WriteByte(',')
+					if err != nil {
+						return nil, err
+					}
+				}
+				if err = (*jsonpb.Marshaler)(j).Marshal(&buf, rv.Index(i).Interface().(proto.Message)); err != nil {
+					return nil, err
+				}
+			}
+			err = buf.WriteByte(']')
+			if err != nil {
+				return nil, err
+			}
+
+			return buf.Bytes(), nil
+		}
+	}
+
+	if rv.Kind() == reflect.Map {
+		m := make(map[string]*json.RawMessage)
+		for _, k := range rv.MapKeys() {
+			buf, err := j.Marshal(rv.MapIndex(k).Interface())
+			if err != nil {
+				return nil, err
+			}
+			m[fmt.Sprintf("%v", k.Interface())] = (*json.RawMessage)(&buf)
+		}
+		if j.Indent != "" {
+			return json.MarshalIndent(m, "", j.Indent)
+		}
+		return json.Marshal(m)
+	}
+	if enum, ok := rv.Interface().(protoEnum); ok && !j.EnumsAsInts {
+		return json.Marshal(enum.String())
+	}
+	return json.Marshal(rv.Interface())
+}
+
+// Unmarshal unmarshals JSON "data" into "v"
+func (j *JSONPb) Unmarshal(data []byte, v interface{}) error {
+	return unmarshalJSONPb(data, v)
+}
+
+// NewDecoder returns a Decoder which reads JSON stream from "r".
+func (j *JSONPb) NewDecoder(r io.Reader) Decoder {
+	d := json.NewDecoder(r)
+	return DecoderWrapper{Decoder: d}
+}
+
+// DecoderWrapper is a wrapper around a *json.Decoder that adds
+// support for protos to the Decode method.
+type DecoderWrapper struct {
+	*json.Decoder
+}
+
+// Decode wraps the embedded decoder's Decode method to support
+// protos using a jsonpb.Unmarshaler.
+func (d DecoderWrapper) Decode(v interface{}) error {
+	return decodeJSONPb(d.Decoder, v)
+}
+
+// NewEncoder returns an Encoder which writes JSON stream into "w".
+func (j *JSONPb) NewEncoder(w io.Writer) Encoder {
+	return EncoderFunc(func(v interface{}) error { return j.marshalTo(w, v) })
+}
+
+func unmarshalJSONPb(data []byte, v interface{}) error {
+	d := json.NewDecoder(bytes.NewReader(data))
+	return decodeJSONPb(d, v)
+}
+
+func decodeJSONPb(d *json.Decoder, v interface{}) error {
+	p, ok := v.(proto.Message)
+	if !ok {
+		return decodeNonProtoField(d, v)
+	}
+	unmarshaler := &jsonpb.Unmarshaler{AllowUnknownFields: true}
+	return unmarshaler.UnmarshalNext(d, p)
+}
+
+func decodeNonProtoField(d *json.Decoder, v interface{}) error {
+	rv := reflect.ValueOf(v)
+	if rv.Kind() != reflect.Ptr {
+		return fmt.Errorf("%T is not a pointer", v)
+	}
+	for rv.Kind() == reflect.Ptr {
+		if rv.IsNil() {
+			rv.Set(reflect.New(rv.Type().Elem()))
+		}
+		if rv.Type().ConvertibleTo(typeProtoMessage) {
+			unmarshaler := &jsonpb.Unmarshaler{AllowUnknownFields: true}
+			return unmarshaler.UnmarshalNext(d, rv.Interface().(proto.Message))
+		}
+		rv = rv.Elem()
+	}
+	if rv.Kind() == reflect.Map {
+		if rv.IsNil() {
+			rv.Set(reflect.MakeMap(rv.Type()))
+		}
+		conv, ok := convFromType[rv.Type().Key().Kind()]
+		if !ok {
+			return fmt.Errorf("unsupported type of map field key: %v", rv.Type().Key())
+		}
+
+		m := make(map[string]*json.RawMessage)
+		if err := d.Decode(&m); err != nil {
+			return err
+		}
+		for k, v := range m {
+			result := conv.Call([]reflect.Value{reflect.ValueOf(k)})
+			if err := result[1].Interface(); err != nil {
+				return err.(error)
+			}
+			bk := result[0]
+			bv := reflect.New(rv.Type().Elem())
+			if err := unmarshalJSONPb([]byte(*v), bv.Interface()); err != nil {
+				return err
+			}
+			rv.SetMapIndex(bk, bv.Elem())
+		}
+		return nil
+	}
+	if _, ok := rv.Interface().(protoEnum); ok {
+		var repr interface{}
+		if err := d.Decode(&repr); err != nil {
+			return err
+		}
+		switch repr.(type) {
+		case string:
+			// TODO(yugui) Should use proto.StructProperties?
+			return fmt.Errorf("unmarshaling of symbolic enum %q not supported: %T", repr, rv.Interface())
+		case float64:
+			rv.Set(reflect.ValueOf(int32(repr.(float64))).Convert(rv.Type()))
+			return nil
+		default:
+			return fmt.Errorf("cannot assign %#v into Go type %T", repr, rv.Interface())
+		}
+	}
+	return d.Decode(v)
+}
+
+type protoEnum interface {
+	fmt.Stringer
+	EnumDescriptor() ([]byte, []int)
+}
+
+var typeProtoMessage = reflect.TypeOf((*proto.Message)(nil)).Elem()
+
+// Delimiter for newline encoded JSON streams.
+func (j *JSONPb) Delimiter() []byte {
+	return []byte("\n")
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshal_proto.go

@@ -0,0 +1,62 @@
+package runtime
+
+import (
+	"io"
+
+	"errors"
+	"github.com/golang/protobuf/proto"
+	"io/ioutil"
+)
+
+// ProtoMarshaller is a Marshaller which marshals/unmarshals into/from serialize proto bytes
+type ProtoMarshaller struct{}
+
+// ContentType always returns "application/octet-stream".
+func (*ProtoMarshaller) ContentType() string {
+	return "application/octet-stream"
+}
+
+// Marshal marshals "value" into Proto
+func (*ProtoMarshaller) Marshal(value interface{}) ([]byte, error) {
+	message, ok := value.(proto.Message)
+	if !ok {
+		return nil, errors.New("unable to marshal non proto field")
+	}
+	return proto.Marshal(message)
+}
+
+// Unmarshal unmarshals proto "data" into "value"
+func (*ProtoMarshaller) Unmarshal(data []byte, value interface{}) error {
+	message, ok := value.(proto.Message)
+	if !ok {
+		return errors.New("unable to unmarshal non proto field")
+	}
+	return proto.Unmarshal(data, message)
+}
+
+// NewDecoder returns a Decoder which reads proto stream from "reader".
+func (marshaller *ProtoMarshaller) NewDecoder(reader io.Reader) Decoder {
+	return DecoderFunc(func(value interface{}) error {
+		buffer, err := ioutil.ReadAll(reader)
+		if err != nil {
+			return err
+		}
+		return marshaller.Unmarshal(buffer, value)
+	})
+}
+
+// NewEncoder returns an Encoder which writes proto stream into "writer".
+func (marshaller *ProtoMarshaller) NewEncoder(writer io.Writer) Encoder {
+	return EncoderFunc(func(value interface{}) error {
+		buffer, err := marshaller.Marshal(value)
+		if err != nil {
+			return err
+		}
+		_, err = writer.Write(buffer)
+		if err != nil {
+			return err
+		}
+
+		return nil
+	})
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler.go

@@ -0,0 +1,48 @@
+package runtime
+
+import (
+	"io"
+)
+
+// Marshaler defines a conversion between byte sequence and gRPC payloads / fields.
+type Marshaler interface {
+	// Marshal marshals "v" into byte sequence.
+	Marshal(v interface{}) ([]byte, error)
+	// Unmarshal unmarshals "data" into "v".
+	// "v" must be a pointer value.
+	Unmarshal(data []byte, v interface{}) error
+	// NewDecoder returns a Decoder which reads byte sequence from "r".
+	NewDecoder(r io.Reader) Decoder
+	// NewEncoder returns an Encoder which writes bytes sequence into "w".
+	NewEncoder(w io.Writer) Encoder
+	// ContentType returns the Content-Type which this marshaler is responsible for.
+	ContentType() string
+}
+
+// Decoder decodes a byte sequence
+type Decoder interface {
+	Decode(v interface{}) error
+}
+
+// Encoder encodes gRPC payloads / fields into byte sequence.
+type Encoder interface {
+	Encode(v interface{}) error
+}
+
+// DecoderFunc adapts an decoder function into Decoder.
+type DecoderFunc func(v interface{}) error
+
+// Decode delegates invocations to the underlying function itself.
+func (f DecoderFunc) Decode(v interface{}) error { return f(v) }
+
+// EncoderFunc adapts an encoder function into Encoder
+type EncoderFunc func(v interface{}) error
+
+// Encode delegates invocations to the underlying function itself.
+func (f EncoderFunc) Encode(v interface{}) error { return f(v) }
+
+// Delimited defines the streaming delimiter.
+type Delimited interface {
+	// Delimiter returns the record seperator for the stream.
+	Delimiter() []byte
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/marshaler_registry.go

@@ -0,0 +1,91 @@
+package runtime
+
+import (
+	"errors"
+	"net/http"
+)
+
+// MIMEWildcard is the fallback MIME type used for requests which do not match
+// a registered MIME type.
+const MIMEWildcard = "*"
+
+var (
+	acceptHeader      = http.CanonicalHeaderKey("Accept")
+	contentTypeHeader = http.CanonicalHeaderKey("Content-Type")
+
+	defaultMarshaler = &JSONPb{OrigName: true}
+)
+
+// MarshalerForRequest returns the inbound/outbound marshalers for this request.
+// It checks the registry on the ServeMux for the MIME type set by the Content-Type header.
+// If it isn't set (or the request Content-Type is empty), checks for "*".
+// If there are multiple Content-Type headers set, choose the first one that it can
+// exactly match in the registry.
+// Otherwise, it follows the above logic for "*"/InboundMarshaler/OutboundMarshaler.
+func MarshalerForRequest(mux *ServeMux, r *http.Request) (inbound Marshaler, outbound Marshaler) {
+	for _, acceptVal := range r.Header[acceptHeader] {
+		if m, ok := mux.marshalers.mimeMap[acceptVal]; ok {
+			outbound = m
+			break
+		}
+	}
+
+	for _, contentTypeVal := range r.Header[contentTypeHeader] {
+		if m, ok := mux.marshalers.mimeMap[contentTypeVal]; ok {
+			inbound = m
+			break
+		}
+	}
+
+	if inbound == nil {
+		inbound = mux.marshalers.mimeMap[MIMEWildcard]
+	}
+	if outbound == nil {
+		outbound = inbound
+	}
+
+	return inbound, outbound
+}
+
+// marshalerRegistry is a mapping from MIME types to Marshalers.
+type marshalerRegistry struct {
+	mimeMap map[string]Marshaler
+}
+
+// add adds a marshaler for a case-sensitive MIME type string ("*" to match any
+// MIME type).
+func (m marshalerRegistry) add(mime string, marshaler Marshaler) error {
+	if len(mime) == 0 {
+		return errors.New("empty MIME type")
+	}
+
+	m.mimeMap[mime] = marshaler
+
+	return nil
+}
+
+// makeMarshalerMIMERegistry returns a new registry of marshalers.
+// It allows for a mapping of case-sensitive Content-Type MIME type string to runtime.Marshaler interfaces.
+//
+// For example, you could allow the client to specify the use of the runtime.JSONPb marshaler
+// with a "application/jsonpb" Content-Type and the use of the runtime.JSONBuiltin marshaler
+// with a "application/json" Content-Type.
+// "*" can be used to match any Content-Type.
+// This can be attached to a ServerMux with the marshaler option.
+func makeMarshalerMIMERegistry() marshalerRegistry {
+	return marshalerRegistry{
+		mimeMap: map[string]Marshaler{
+			MIMEWildcard: defaultMarshaler,
+		},
+	}
+}
+
+// WithMarshalerOption returns a ServeMuxOption which associates inbound and outbound
+// Marshalers to a MIME type in mux.
+func WithMarshalerOption(mime string, marshaler Marshaler) ServeMuxOption {
+	return func(mux *ServeMux) {
+		if err := mux.marshalers.add(mime, marshaler); err != nil {
+			panic(err)
+		}
+	}
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/mux.go

@@ -0,0 +1,268 @@
+package runtime
+
+import (
+	"context"
+	"fmt"
+	"net/http"
+	"net/textproto"
+	"strings"
+
+	"github.com/golang/protobuf/proto"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/metadata"
+	"google.golang.org/grpc/status"
+)
+
+// A HandlerFunc handles a specific pair of path pattern and HTTP method.
+type HandlerFunc func(w http.ResponseWriter, r *http.Request, pathParams map[string]string)
+
+// ServeMux is a request multiplexer for grpc-gateway.
+// It matches http requests to patterns and invokes the corresponding handler.
+type ServeMux struct {
+	// handlers maps HTTP method to a list of handlers.
+	handlers                  map[string][]handler
+	forwardResponseOptions    []func(context.Context, http.ResponseWriter, proto.Message) error
+	marshalers                marshalerRegistry
+	incomingHeaderMatcher     HeaderMatcherFunc
+	outgoingHeaderMatcher     HeaderMatcherFunc
+	metadataAnnotators        []func(context.Context, *http.Request) metadata.MD
+	protoErrorHandler         ProtoErrorHandlerFunc
+	disablePathLengthFallback bool
+}
+
+// ServeMuxOption is an option that can be given to a ServeMux on construction.
+type ServeMuxOption func(*ServeMux)
+
+// WithForwardResponseOption returns a ServeMuxOption representing the forwardResponseOption.
+//
+// forwardResponseOption is an option that will be called on the relevant context.Context,
+// http.ResponseWriter, and proto.Message before every forwarded response.
+//
+// The message may be nil in the case where just a header is being sent.
+func WithForwardResponseOption(forwardResponseOption func(context.Context, http.ResponseWriter, proto.Message) error) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.forwardResponseOptions = append(serveMux.forwardResponseOptions, forwardResponseOption)
+	}
+}
+
+// HeaderMatcherFunc checks whether a header key should be forwarded to/from gRPC context.
+type HeaderMatcherFunc func(string) (string, bool)
+
+// DefaultHeaderMatcher is used to pass http request headers to/from gRPC context. This adds permanent HTTP header
+// keys (as specified by the IANA) to gRPC context with grpcgateway- prefix. HTTP headers that start with
+// 'Grpc-Metadata-' are mapped to gRPC metadata after removing prefix 'Grpc-Metadata-'.
+func DefaultHeaderMatcher(key string) (string, bool) {
+	key = textproto.CanonicalMIMEHeaderKey(key)
+	if isPermanentHTTPHeader(key) {
+		return MetadataPrefix + key, true
+	} else if strings.HasPrefix(key, MetadataHeaderPrefix) {
+		return key[len(MetadataHeaderPrefix):], true
+	}
+	return "", false
+}
+
+// WithIncomingHeaderMatcher returns a ServeMuxOption representing a headerMatcher for incoming request to gateway.
+//
+// This matcher will be called with each header in http.Request. If matcher returns true, that header will be
+// passed to gRPC context. To transform the header before passing to gRPC context, matcher should return modified header.
+func WithIncomingHeaderMatcher(fn HeaderMatcherFunc) ServeMuxOption {
+	return func(mux *ServeMux) {
+		mux.incomingHeaderMatcher = fn
+	}
+}
+
+// WithOutgoingHeaderMatcher returns a ServeMuxOption representing a headerMatcher for outgoing response from gateway.
+//
+// This matcher will be called with each header in response header metadata. If matcher returns true, that header will be
+// passed to http response returned from gateway. To transform the header before passing to response,
+// matcher should return modified header.
+func WithOutgoingHeaderMatcher(fn HeaderMatcherFunc) ServeMuxOption {
+	return func(mux *ServeMux) {
+		mux.outgoingHeaderMatcher = fn
+	}
+}
+
+// WithMetadata returns a ServeMuxOption for passing metadata to a gRPC context.
+//
+// This can be used by services that need to read from http.Request and modify gRPC context. A common use case
+// is reading token from cookie and adding it in gRPC context.
+func WithMetadata(annotator func(context.Context, *http.Request) metadata.MD) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.metadataAnnotators = append(serveMux.metadataAnnotators, annotator)
+	}
+}
+
+// WithProtoErrorHandler returns a ServeMuxOption for passing metadata to a gRPC context.
+//
+// This can be used to handle an error as general proto message defined by gRPC.
+// The response including body and status is not backward compatible with the default error handler.
+// When this option is used, HTTPError and OtherErrorHandler are overwritten on initialization.
+func WithProtoErrorHandler(fn ProtoErrorHandlerFunc) ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.protoErrorHandler = fn
+	}
+}
+
+// WithDisablePathLengthFallback returns a ServeMuxOption for disable path length fallback.
+func WithDisablePathLengthFallback() ServeMuxOption {
+	return func(serveMux *ServeMux) {
+		serveMux.disablePathLengthFallback = true
+	}
+}
+
+// NewServeMux returns a new ServeMux whose internal mapping is empty.
+func NewServeMux(opts ...ServeMuxOption) *ServeMux {
+	serveMux := &ServeMux{
+		handlers:               make(map[string][]handler),
+		forwardResponseOptions: make([]func(context.Context, http.ResponseWriter, proto.Message) error, 0),
+		marshalers:             makeMarshalerMIMERegistry(),
+	}
+
+	for _, opt := range opts {
+		opt(serveMux)
+	}
+
+	if serveMux.protoErrorHandler != nil {
+		HTTPError = serveMux.protoErrorHandler
+		// OtherErrorHandler is no longer used when protoErrorHandler is set.
+		// Overwritten by a special error handler to return Unknown.
+		OtherErrorHandler = func(w http.ResponseWriter, r *http.Request, _ string, _ int) {
+			ctx := context.Background()
+			_, outboundMarshaler := MarshalerForRequest(serveMux, r)
+			sterr := status.Error(codes.Unknown, "unexpected use of OtherErrorHandler")
+			serveMux.protoErrorHandler(ctx, serveMux, outboundMarshaler, w, r, sterr)
+		}
+	}
+
+	if serveMux.incomingHeaderMatcher == nil {
+		serveMux.incomingHeaderMatcher = DefaultHeaderMatcher
+	}
+
+	if serveMux.outgoingHeaderMatcher == nil {
+		serveMux.outgoingHeaderMatcher = func(key string) (string, bool) {
+			return fmt.Sprintf("%s%s", MetadataHeaderPrefix, key), true
+		}
+	}
+
+	return serveMux
+}
+
+// Handle associates "h" to the pair of HTTP method and path pattern.
+func (s *ServeMux) Handle(meth string, pat Pattern, h HandlerFunc) {
+	s.handlers[meth] = append(s.handlers[meth], handler{pat: pat, h: h})
+}
+
+// ServeHTTP dispatches the request to the first handler whose pattern matches to r.Method and r.Path.
+func (s *ServeMux) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+
+	path := r.URL.Path
+	if !strings.HasPrefix(path, "/") {
+		if s.protoErrorHandler != nil {
+			_, outboundMarshaler := MarshalerForRequest(s, r)
+			sterr := status.Error(codes.InvalidArgument, http.StatusText(http.StatusBadRequest))
+			s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+		} else {
+			OtherErrorHandler(w, r, http.StatusText(http.StatusBadRequest), http.StatusBadRequest)
+		}
+		return
+	}
+
+	components := strings.Split(path[1:], "/")
+	l := len(components)
+	var verb string
+	if idx := strings.LastIndex(components[l-1], ":"); idx == 0 {
+		if s.protoErrorHandler != nil {
+			_, outboundMarshaler := MarshalerForRequest(s, r)
+			sterr := status.Error(codes.Unimplemented, http.StatusText(http.StatusNotImplemented))
+			s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+		} else {
+			OtherErrorHandler(w, r, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+		}
+		return
+	} else if idx > 0 {
+		c := components[l-1]
+		components[l-1], verb = c[:idx], c[idx+1:]
+	}
+
+	if override := r.Header.Get("X-HTTP-Method-Override"); override != "" && s.isPathLengthFallback(r) {
+		r.Method = strings.ToUpper(override)
+		if err := r.ParseForm(); err != nil {
+			if s.protoErrorHandler != nil {
+				_, outboundMarshaler := MarshalerForRequest(s, r)
+				sterr := status.Error(codes.InvalidArgument, err.Error())
+				s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+			} else {
+				OtherErrorHandler(w, r, err.Error(), http.StatusBadRequest)
+			}
+			return
+		}
+	}
+	for _, h := range s.handlers[r.Method] {
+		pathParams, err := h.pat.Match(components, verb)
+		if err != nil {
+			continue
+		}
+		h.h(w, r, pathParams)
+		return
+	}
+
+	// lookup other methods to handle fallback from GET to POST and
+	// to determine if it is MethodNotAllowed or NotFound.
+	for m, handlers := range s.handlers {
+		if m == r.Method {
+			continue
+		}
+		for _, h := range handlers {
+			pathParams, err := h.pat.Match(components, verb)
+			if err != nil {
+				continue
+			}
+			// X-HTTP-Method-Override is optional. Always allow fallback to POST.
+			if s.isPathLengthFallback(r) {
+				if err := r.ParseForm(); err != nil {
+					if s.protoErrorHandler != nil {
+						_, outboundMarshaler := MarshalerForRequest(s, r)
+						sterr := status.Error(codes.InvalidArgument, err.Error())
+						s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+					} else {
+						OtherErrorHandler(w, r, err.Error(), http.StatusBadRequest)
+					}
+					return
+				}
+				h.h(w, r, pathParams)
+				return
+			}
+			if s.protoErrorHandler != nil {
+				_, outboundMarshaler := MarshalerForRequest(s, r)
+				sterr := status.Error(codes.Unimplemented, http.StatusText(http.StatusMethodNotAllowed))
+				s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+			} else {
+				OtherErrorHandler(w, r, http.StatusText(http.StatusMethodNotAllowed), http.StatusMethodNotAllowed)
+			}
+			return
+		}
+	}
+
+	if s.protoErrorHandler != nil {
+		_, outboundMarshaler := MarshalerForRequest(s, r)
+		sterr := status.Error(codes.Unimplemented, http.StatusText(http.StatusNotImplemented))
+		s.protoErrorHandler(ctx, s, outboundMarshaler, w, r, sterr)
+	} else {
+		OtherErrorHandler(w, r, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+	}
+}
+
+// GetForwardResponseOptions returns the ForwardResponseOptions associated with this ServeMux.
+func (s *ServeMux) GetForwardResponseOptions() []func(context.Context, http.ResponseWriter, proto.Message) error {
+	return s.forwardResponseOptions
+}
+
+func (s *ServeMux) isPathLengthFallback(r *http.Request) bool {
+	return !s.disablePathLengthFallback && r.Method == "POST" && r.Header.Get("Content-Type") == "application/x-www-form-urlencoded"
+}
+
+type handler struct {
+	pat Pattern
+	h   HandlerFunc
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/pattern.go

@@ -0,0 +1,227 @@
+package runtime
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/grpc-ecosystem/grpc-gateway/utilities"
+	"google.golang.org/grpc/grpclog"
+)
+
+var (
+	// ErrNotMatch indicates that the given HTTP request path does not match to the pattern.
+	ErrNotMatch = errors.New("not match to the path pattern")
+	// ErrInvalidPattern indicates that the given definition of Pattern is not valid.
+	ErrInvalidPattern = errors.New("invalid pattern")
+)
+
+type op struct {
+	code    utilities.OpCode
+	operand int
+}
+
+// Pattern is a template pattern of http request paths defined in github.com/googleapis/googleapis/google/api/http.proto.
+type Pattern struct {
+	// ops is a list of operations
+	ops []op
+	// pool is a constant pool indexed by the operands or vars.
+	pool []string
+	// vars is a list of variables names to be bound by this pattern
+	vars []string
+	// stacksize is the max depth of the stack
+	stacksize int
+	// tailLen is the length of the fixed-size segments after a deep wildcard
+	tailLen int
+	// verb is the VERB part of the path pattern. It is empty if the pattern does not have VERB part.
+	verb string
+}
+
+// NewPattern returns a new Pattern from the given definition values.
+// "ops" is a sequence of op codes. "pool" is a constant pool.
+// "verb" is the verb part of the pattern. It is empty if the pattern does not have the part.
+// "version" must be 1 for now.
+// It returns an error if the given definition is invalid.
+func NewPattern(version int, ops []int, pool []string, verb string) (Pattern, error) {
+	if version != 1 {
+		grpclog.Infof("unsupported version: %d", version)
+		return Pattern{}, ErrInvalidPattern
+	}
+
+	l := len(ops)
+	if l%2 != 0 {
+		grpclog.Infof("odd number of ops codes: %d", l)
+		return Pattern{}, ErrInvalidPattern
+	}
+
+	var (
+		typedOps        []op
+		stack, maxstack int
+		tailLen         int
+		pushMSeen       bool
+		vars            []string
+	)
+	for i := 0; i < l; i += 2 {
+		op := op{code: utilities.OpCode(ops[i]), operand: ops[i+1]}
+		switch op.code {
+		case utilities.OpNop:
+			continue
+		case utilities.OpPush:
+			if pushMSeen {
+				tailLen++
+			}
+			stack++
+		case utilities.OpPushM:
+			if pushMSeen {
+				grpclog.Infof("pushM appears twice")
+				return Pattern{}, ErrInvalidPattern
+			}
+			pushMSeen = true
+			stack++
+		case utilities.OpLitPush:
+			if op.operand < 0 || len(pool) <= op.operand {
+				grpclog.Infof("negative literal index: %d", op.operand)
+				return Pattern{}, ErrInvalidPattern
+			}
+			if pushMSeen {
+				tailLen++
+			}
+			stack++
+		case utilities.OpConcatN:
+			if op.operand <= 0 {
+				grpclog.Infof("negative concat size: %d", op.operand)
+				return Pattern{}, ErrInvalidPattern
+			}
+			stack -= op.operand
+			if stack < 0 {
+				grpclog.Print("stack underflow")
+				return Pattern{}, ErrInvalidPattern
+			}
+			stack++
+		case utilities.OpCapture:
+			if op.operand < 0 || len(pool) <= op.operand {
+				grpclog.Infof("variable name index out of bound: %d", op.operand)
+				return Pattern{}, ErrInvalidPattern
+			}
+			v := pool[op.operand]
+			op.operand = len(vars)
+			vars = append(vars, v)
+			stack--
+			if stack < 0 {
+				grpclog.Infof("stack underflow")
+				return Pattern{}, ErrInvalidPattern
+			}
+		default:
+			grpclog.Infof("invalid opcode: %d", op.code)
+			return Pattern{}, ErrInvalidPattern
+		}
+
+		if maxstack < stack {
+			maxstack = stack
+		}
+		typedOps = append(typedOps, op)
+	}
+	return Pattern{
+		ops:       typedOps,
+		pool:      pool,
+		vars:      vars,
+		stacksize: maxstack,
+		tailLen:   tailLen,
+		verb:      verb,
+	}, nil
+}
+
+// MustPattern is a helper function which makes it easier to call NewPattern in variable initialization.
+func MustPattern(p Pattern, err error) Pattern {
+	if err != nil {
+		grpclog.Fatalf("Pattern initialization failed: %v", err)
+	}
+	return p
+}
+
+// Match examines components if it matches to the Pattern.
+// If it matches, the function returns a mapping from field paths to their captured values.
+// If otherwise, the function returns an error.
+func (p Pattern) Match(components []string, verb string) (map[string]string, error) {
+	if p.verb != verb {
+		return nil, ErrNotMatch
+	}
+
+	var pos int
+	stack := make([]string, 0, p.stacksize)
+	captured := make([]string, len(p.vars))
+	l := len(components)
+	for _, op := range p.ops {
+		switch op.code {
+		case utilities.OpNop:
+			continue
+		case utilities.OpPush, utilities.OpLitPush:
+			if pos >= l {
+				return nil, ErrNotMatch
+			}
+			c := components[pos]
+			if op.code == utilities.OpLitPush {
+				if lit := p.pool[op.operand]; c != lit {
+					return nil, ErrNotMatch
+				}
+			}
+			stack = append(stack, c)
+			pos++
+		case utilities.OpPushM:
+			end := len(components)
+			if end < pos+p.tailLen {
+				return nil, ErrNotMatch
+			}
+			end -= p.tailLen
+			stack = append(stack, strings.Join(components[pos:end], "/"))
+			pos = end
+		case utilities.OpConcatN:
+			n := op.operand
+			l := len(stack) - n
+			stack = append(stack[:l], strings.Join(stack[l:], "/"))
+		case utilities.OpCapture:
+			n := len(stack) - 1
+			captured[op.operand] = stack[n]
+			stack = stack[:n]
+		}
+	}
+	if pos < l {
+		return nil, ErrNotMatch
+	}
+	bindings := make(map[string]string)
+	for i, val := range captured {
+		bindings[p.vars[i]] = val
+	}
+	return bindings, nil
+}
+
+// Verb returns the verb part of the Pattern.
+func (p Pattern) Verb() string { return p.verb }
+
+func (p Pattern) String() string {
+	var stack []string
+	for _, op := range p.ops {
+		switch op.code {
+		case utilities.OpNop:
+			continue
+		case utilities.OpPush:
+			stack = append(stack, "*")
+		case utilities.OpLitPush:
+			stack = append(stack, p.pool[op.operand])
+		case utilities.OpPushM:
+			stack = append(stack, "**")
+		case utilities.OpConcatN:
+			n := op.operand
+			l := len(stack) - n
+			stack = append(stack[:l], strings.Join(stack[l:], "/"))
+		case utilities.OpCapture:
+			n := len(stack) - 1
+			stack[n] = fmt.Sprintf("{%s=%s}", p.vars[op.operand], stack[n])
+		}
+	}
+	segs := strings.Join(stack, "/")
+	if p.verb != "" {
+		return fmt.Sprintf("/%s:%s", segs, p.verb)
+	}
+	return "/" + segs
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/proto2_convert.go

@@ -0,0 +1,80 @@
+package runtime
+
+import (
+	"github.com/golang/protobuf/proto"
+)
+
+// StringP returns a pointer to a string whose pointee is same as the given string value.
+func StringP(val string) (*string, error) {
+	return proto.String(val), nil
+}
+
+// BoolP parses the given string representation of a boolean value,
+// and returns a pointer to a bool whose value is same as the parsed value.
+func BoolP(val string) (*bool, error) {
+	b, err := Bool(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Bool(b), nil
+}
+
+// Float64P parses the given string representation of a floating point number,
+// and returns a pointer to a float64 whose value is same as the parsed number.
+func Float64P(val string) (*float64, error) {
+	f, err := Float64(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Float64(f), nil
+}
+
+// Float32P parses the given string representation of a floating point number,
+// and returns a pointer to a float32 whose value is same as the parsed number.
+func Float32P(val string) (*float32, error) {
+	f, err := Float32(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Float32(f), nil
+}
+
+// Int64P parses the given string representation of an integer
+// and returns a pointer to a int64 whose value is same as the parsed integer.
+func Int64P(val string) (*int64, error) {
+	i, err := Int64(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Int64(i), nil
+}
+
+// Int32P parses the given string representation of an integer
+// and returns a pointer to a int32 whose value is same as the parsed integer.
+func Int32P(val string) (*int32, error) {
+	i, err := Int32(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Int32(i), err
+}
+
+// Uint64P parses the given string representation of an integer
+// and returns a pointer to a uint64 whose value is same as the parsed integer.
+func Uint64P(val string) (*uint64, error) {
+	i, err := Uint64(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Uint64(i), err
+}
+
+// Uint32P parses the given string representation of an integer
+// and returns a pointer to a uint32 whose value is same as the parsed integer.
+func Uint32P(val string) (*uint32, error) {
+	i, err := Uint32(val)
+	if err != nil {
+		return nil, err
+	}
+	return proto.Uint32(i), err
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/proto_errors.go

@@ -0,0 +1,61 @@
+package runtime
+
+import (
+	"io"
+	"net/http"
+
+	"context"
+	"google.golang.org/grpc/codes"
+	"google.golang.org/grpc/grpclog"
+	"google.golang.org/grpc/status"
+)
+
+// ProtoErrorHandlerFunc handles the error as a gRPC error generated via status package and replies to the request.
+type ProtoErrorHandlerFunc func(context.Context, *ServeMux, Marshaler, http.ResponseWriter, *http.Request, error)
+
+var _ ProtoErrorHandlerFunc = DefaultHTTPProtoErrorHandler
+
+// DefaultHTTPProtoErrorHandler is an implementation of HTTPError.
+// If "err" is an error from gRPC system, the function replies with the status code mapped by HTTPStatusFromCode.
+// If otherwise, it replies with http.StatusInternalServerError.
+//
+// The response body returned by this function is a Status message marshaled by a Marshaler.
+//
+// Do not set this function to HTTPError variable directly, use WithProtoErrorHandler option instead.
+func DefaultHTTPProtoErrorHandler(ctx context.Context, mux *ServeMux, marshaler Marshaler, w http.ResponseWriter, _ *http.Request, err error) {
+	// return Internal when Marshal failed
+	const fallback = `{"code": 13, "message": "failed to marshal error message"}`
+
+	w.Header().Del("Trailer")
+	w.Header().Set("Content-Type", marshaler.ContentType())
+
+	s, ok := status.FromError(err)
+	if !ok {
+		s = status.New(codes.Unknown, err.Error())
+	}
+
+	buf, merr := marshaler.Marshal(s.Proto())
+	if merr != nil {
+		grpclog.Infof("Failed to marshal error message %q: %v", s.Proto(), merr)
+		w.WriteHeader(http.StatusInternalServerError)
+		if _, err := io.WriteString(w, fallback); err != nil {
+			grpclog.Infof("Failed to write response: %v", err)
+		}
+		return
+	}
+
+	md, ok := ServerMetadataFromContext(ctx)
+	if !ok {
+		grpclog.Infof("Failed to extract ServerMetadata from context")
+	}
+
+	handleForwardResponseServerMetadata(w, mux, md)
+	handleForwardResponseTrailerHeader(w, md)
+	st := HTTPStatusFromCode(s.Code())
+	w.WriteHeader(st)
+	if _, err := w.Write(buf); err != nil {
+		grpclog.Infof("Failed to write response: %v", err)
+	}
+
+	handleForwardResponseTrailer(w, md)
+}

vendor/github.com/grpc-ecosystem/grpc-gateway/runtime/query.go

@@ -0,0 +1,392 @@
+package runtime
+
+import (
+	"encoding/base64"
+	"fmt"
+	"net/url"
+	"reflect"
+	"regexp"
+	"strconv"
+	"strings"
+	"time"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/grpc-ecosystem/grpc-gateway/utilities"
+	"google.golang.org/grpc/grpclog"
+)
+
+// PopulateQueryParameters populates "values" into "msg".
+// A value is ignored if its key starts with one of the elements in "filter".
+func PopulateQueryParameters(msg proto.Message, values url.Values, filter *utilities.DoubleArray) error {
+	for key, values := range values {
+		re, err := regexp.Compile("^(.*)\\[(.*)\\]$")
+		if err != nil {
+			return err
+		}
+		match := re.FindStringSubmatch(key)
+		if len(match) == 3 {
+			key = match[1]
+			values = append([]string{match[2]}, values...)
+		}
+		fieldPath := strings.Split(key, ".")
+		if filter.HasCommonPrefix(fieldPath) {
+			continue
+		}
+		if err := populateFieldValueFromPath(msg, fieldPath, values); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+// PopulateFieldFromPath sets a value in a nested Protobuf structure.
+// It instantiates missing protobuf fields as it goes.
+func PopulateFieldFromPath(msg proto.Message, fieldPathString string, value string) error {
+	fieldPath := strings.Split(fieldPathString, ".")
+	return populateFieldValueFromPath(msg, fieldPath, []string{value})
+}
+
+func populateFieldValueFromPath(msg proto.Message, fieldPath []string, values []string) error {
+	m := reflect.ValueOf(msg)
+	if m.Kind() != reflect.Ptr {
+		return fmt.Errorf("unexpected type %T: %v", msg, msg)
+	}
+	var props *proto.Properties
+	m = m.Elem()
+	for i, fieldName := range fieldPath {
+		isLast := i == len(fieldPath)-1
+		if !isLast && m.Kind() != reflect.Struct {
+			return fmt.Errorf("non-aggregate type in the mid of path: %s", strings.Join(fieldPath, "."))
+		}
+		var f reflect.Value
+		var err error
+		f, props, err = fieldByProtoName(m, fieldName)
+		if err != nil {
+			return err
+		} else if !f.IsValid() {
+			grpclog.Infof("field not found in %T: %s", msg, strings.Join(fieldPath, "."))
+			return nil
+		}
+
+		switch f.Kind() {
+		case reflect.Bool, reflect.Float32, reflect.Float64, reflect.Int32, reflect.Int64, reflect.String, reflect.Uint32, reflect.Uint64:
+			if !isLast {
+				return fmt.Errorf("unexpected nested field %s in %s", fieldPath[i+1], strings.Join(fieldPath[:i+1], "."))
+			}
+			m = f
+		case reflect.Slice:
+			if !isLast {
+				return fmt.Errorf("unexpected repeated field in %s", strings.Join(fieldPath, "."))
+			}
+			// Handle []byte
+			if f.Type().Elem().Kind() == reflect.Uint8 {
+				m = f
+				break
+			}
+			return populateRepeatedField(f, values, props)
+		case reflect.Ptr:
+			if f.IsNil() {
+				m = reflect.New(f.Type().Elem())
+				f.Set(m.Convert(f.Type()))
+			}
+			m = f.Elem()
+			continue
+		case reflect.Struct:
+			m = f
+			continue
+		case reflect.Map:
+			if !isLast {
+				return fmt.Errorf("unexpected nested field %s in %s", fieldPath[i+1], strings.Join(fieldPath[:i+1], "."))
+			}
+			return populateMapField(f, values, props)
+		default:
+			return fmt.Errorf("unexpected type %s in %T", f.Type(), msg)
+		}
+	}
+	switch len(values) {
+	case 0:
+		return fmt.Errorf("no value of field: %s", strings.Join(fieldPath, "."))
+	case 1:
+	default:
+		grpclog.Infof("too many field values: %s", strings.Join(fieldPath, "."))
+	}
+	return populateField(m, values[0], props)
+}
+
+// fieldByProtoName looks up a field whose corresponding protobuf field name is "name".
+// "m" must be a struct value. It returns zero reflect.Value if no such field found.
+func fieldByProtoName(m reflect.Value, name string) (reflect.Value, *proto.Properties, error) {
+	props := proto.GetProperties(m.Type())
+
+	// look up field name in oneof map
+	if op, ok := props.OneofTypes[name]; ok {
+		v := reflect.New(op.Type.Elem())
+		field := m.Field(op.Field)
+		if !field.IsNil() {
+			return reflect.Value{}, nil, fmt.Errorf("field already set for %s oneof", props.Prop[op.Field].OrigName)
+		}
+		field.Set(v)
+		return v.Elem().Field(0), op.Prop, nil
+	}
+
+	for _, p := range props.Prop {
+		if p.OrigName == name {
+			return m.FieldByName(p.Name), p, nil
+		}
+		if p.JSONName == name {
+			return m.FieldByName(p.Name), p, nil
+		}
+	}
+	return reflect.Value{}, nil, nil
+}
+
+func populateMapField(f reflect.Value, values []string, props *proto.Properties) error {
+	if len(values) != 2 {
+		return fmt.Errorf("more than one value provided for key %s in map %s", values[0], props.Name)
+	}
+
+	key, value := values[0], values[1]
+	keyType := f.Type().Key()
+	valueType := f.Type().Elem()
+	if f.IsNil() {
+		f.Set(reflect.MakeMap(f.Type()))
+	}
+
+	keyConv, ok := convFromType[keyType.Kind()]
+	if !ok {
+		return fmt.Errorf("unsupported key type %s in map %s", keyType, props.Name)
+	}
+	valueConv, ok := convFromType[valueType.Kind()]
+	if !ok {
+		return fmt.Errorf("unsupported value type %s in map %s", valueType, props.Name)
+	}
+
+	keyV := keyConv.Call([]reflect.Value{reflect.ValueOf(key)})
+	if err := keyV[1].Interface(); err != nil {
+		return err.(error)
+	}
+	valueV := valueConv.Call([]reflect.Value{reflect.ValueOf(value)})
+	if err := valueV[1].Interface(); err != nil {
+		return err.(error)
+	}
+
+	f.SetMapIndex(keyV[0].Convert(keyType), valueV[0].Convert(valueType))
+
+	return nil
+}
+
+func populateRepeatedField(f reflect.Value, values []string, props *proto.Properties) error {
+	elemType := f.Type().Elem()
+
+	// is the destination field a slice of an enumeration type?
+	if enumValMap := proto.EnumValueMap(props.Enum); enumValMap != nil {
+		return populateFieldEnumRepeated(f, values, enumValMap)
+	}
+
+	conv, ok := convFromType[elemType.Kind()]
+	if !ok {
+		return fmt.Errorf("unsupported field type %s", elemType)
+	}
+	f.Set(reflect.MakeSlice(f.Type(), len(values), len(values)).Convert(f.Type()))
+	for i, v := range values {
+		result := conv.Call([]reflect.Value{reflect.ValueOf(v)})
+		if err := result[1].Interface(); err != nil {
+			return err.(error)
+		}
+		f.Index(i).Set(result[0].Convert(f.Index(i).Type()))
+	}
+	return nil
+}
+
+func populateField(f reflect.Value, value string, props *proto.Properties) error {
+	i := f.Addr().Interface()
+
+	// Handle protobuf well known types
+	type wkt interface {
+		XXX_WellKnownType() string
+	}
+	if wkt, ok := i.(wkt); ok {
+		switch wkt.XXX_WellKnownType() {
+		case "Timestamp":
+			if value == "null" {
+				f.Field(0).SetInt(0)
+				f.Field(1).SetInt(0)
+				return nil
+			}
+
+			t, err := time.Parse(time.RFC3339Nano, value)
+			if err != nil {
+				return fmt.Errorf("bad Timestamp: %v", err)
+			}
+			f.Field(0).SetInt(int64(t.Unix()))
+			f.Field(1).SetInt(int64(t.Nanosecond()))
+			return nil
+		case "Duration":
+			if value == "null" {
+				f.Field(0).SetInt(0)
+				f.Field(1).SetInt(0)
+				return nil
+			}
+			d, err := time.ParseDuration(value)
+			if err != nil {
+				return fmt.Errorf("bad Duration: %v", err)
+			}
+
+			ns := d.Nanoseconds()
+			s := ns / 1e9
+			ns %= 1e9
+			f.Field(0).SetInt(s)
+			f.Field(1).SetInt(ns)
+			return nil
+		case "DoubleValue":
+			fallthrough
+		case "FloatValue":
+			float64Val, err := strconv.ParseFloat(value, 64)
+			if err != nil {
+				return fmt.Errorf("bad DoubleValue: %s", value)
+			}
+			f.Field(0).SetFloat(float64Val)
+			return nil
+		case "Int64Value":
+			fallthrough
+		case "Int32Value":
+			int64Val, err := strconv.ParseInt(value, 10, 64)
+			if err != nil {
+				return fmt.Errorf("bad DoubleValue: %s", value)
+			}
+			f.Field(0).SetInt(int64Val)
+			return nil
+		case "UInt64Value":
+			fallthrough
+		case "UInt32Value":
+			uint64Val, err := strconv.ParseUint(value, 10, 64)
+			if err != nil {
+				return fmt.Errorf("bad DoubleValue: %s", value)
+			}
+			f.Field(0).SetUint(uint64Val)
+			return nil
+		case "BoolValue":
+			if value == "true" {
+				f.Field(0).SetBool(true)
+			} else if value == "false" {
+				f.Field(0).SetBool(false)
+			} else {
+				return fmt.Errorf("bad BoolValue: %s", value)
+			}
+			return nil
+		case "StringValue":
+			f.Field(0).SetString(value)
+			return nil
+		case "BytesValue":
+			bytesVal, err := base64.StdEncoding.DecodeString(value)
+			if err != nil {
+				return fmt.Errorf("bad BytesValue: %s", value)
+			}
+			f.Field(0).SetBytes(bytesVal)
+			return nil
+		}
+	}
+
+	// Handle google well known types
+	if gwkt, ok := i.(proto.Message); ok {
+		switch proto.MessageName(gwkt) {
+		case "google.protobuf.FieldMask":
+			p := f.Field(0)
+			for _, v := range strings.Split(value, ",") {
+				if v != "" {
+					p.Set(reflect.Append(p, reflect.ValueOf(v)))
+				}
+			}
+			return nil
+		}
+	}
+
+	// Handle Time and Duration stdlib types
+	switch t := i.(type) {
+	case *time.Time:
+		pt, err := time.Parse(time.RFC3339Nano, value)
+		if err != nil {
+			return fmt.Errorf("bad Timestamp: %v", err)
+		}
+		*t = pt
+		return nil
+	case *time.Duration:
+		d, err := time.ParseDuration(value)
+		if err != nil {
+			return fmt.Errorf("bad Duration: %v", err)
+		}
+		*t = d
+		return nil
+	}
+
+	// is the destination field an enumeration type?
+	if enumValMap := proto.EnumValueMap(props.Enum); enumValMap != nil {
+		return populateFieldEnum(f, value, enumValMap)
+	}
+
+	conv, ok := convFromType[f.Kind()]
+	if !ok {
+		return fmt.Errorf("field type %T is not supported in query parameters", i)
+	}
+	result := conv.Call([]reflect.Value{reflect.ValueOf(value)})
+	if err := result[1].Interface(); err != nil {
+		return err.(error)
+	}
+	f.Set(result[0].Convert(f.Type()))
+	return nil
+}
+
+func convertEnum(value string, t reflect.Type, enumValMap map[string]int32) (reflect.Value, error) {
+	// see if it's an enumeration string
+	if enumVal, ok := enumValMap[value]; ok {
+		return reflect.ValueOf(enumVal).Convert(t), nil
+	}
+
+	// check for an integer that matches an enumeration value
+	eVal, err := strconv.Atoi(value)
+	if err != nil {
+		return reflect.Value{}, fmt.Errorf("%s is not a valid %s", value, t)
+	}
+	for _, v := range enumValMap {
+		if v == int32(eVal) {
+			return reflect.ValueOf(eVal).Convert(t), nil
+		}
+	}
+	return reflect.Value{}, fmt.Errorf("%s is not a valid %s", value, t)
+}
+
+func populateFieldEnum(f reflect.Value, value string, enumValMap map[string]int32) error {
+	cval, err := convertEnum(value, f.Type(), enumValMap)
+	if err != nil {
+		return err
+	}
+	f.Set(cval)
+	return nil
+}
+
+func populateFieldEnumRepeated(f reflect.Value, values []string, enumValMap map[string]int32) error {
+	elemType := f.Type().Elem()
+	f.Set(reflect.MakeSlice(f.Type(), len(values), len(values)).Convert(f.Type()))
+	for i, v := range values {
+		result, err := convertEnum(v, elemType, enumValMap)
+		if err != nil {
+			return err
+		}
+		f.Index(i).Set(result)
+	}
+	return nil
+}
+
+var (
+	convFromType = map[reflect.Kind]reflect.Value{
+		reflect.String:  reflect.ValueOf(String),
+		reflect.Bool:    reflect.ValueOf(Bool),
+		reflect.Float64: reflect.ValueOf(Float64),
+		reflect.Float32: reflect.ValueOf(Float32),
+		reflect.Int64:   reflect.ValueOf(Int64),
+		reflect.Int32:   reflect.ValueOf(Int32),
+		reflect.Uint64:  reflect.ValueOf(Uint64),
+		reflect.Uint32:  reflect.ValueOf(Uint32),
+		reflect.Slice:   reflect.ValueOf(Bytes),
+	}
+)

vendor/github.com/grpc-ecosystem/grpc-gateway/utilities/BUILD.bazel

@@ -0,0 +1,21 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
+
+package(default_visibility = ["//visibility:public"])
+
+go_library(
+    name = "go_default_library",
+    srcs = [
+        "doc.go",
+        "pattern.go",
+        "readerfactory.go",
+        "trie.go",
+    ],
+    importpath = "github.com/grpc-ecosystem/grpc-gateway/utilities",
+)
+
+go_test(
+    name = "go_default_test",
+    size = "small",
+    srcs = ["trie_test.go"],
+    embed = [":go_default_library"],
+)