Merge pull request #3764 from thaJeztah/bump_cobra

go.mod: github.com/spf13/cobra v1.6.1

go.mod

@@ -22,7 +22,7 @@ require (
 	github.com/opencontainers/image-spec v1.0.2
 	github.com/prometheus/client_golang v1.12.1 // indirect; updated to latest
 	github.com/sirupsen/logrus v1.8.1
-	github.com/spf13/cobra v1.0.0
+	github.com/spf13/cobra v1.6.1
 	github.com/yvasiyarov/gorelic v0.0.0-20141212073537-a9bba5b9ab50
 	golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3
 	golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c
@@ -53,7 +53,7 @@ require (
 	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
 	github.com/googleapis/gax-go/v2 v2.0.5 // indirect
-	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.1 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
 	github.com/kr/pretty v0.1.0 // indirect
 	github.com/kr/text v0.1.0 // indirect
@@ -62,7 +62,7 @@ require (
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
-	github.com/spf13/pflag v1.0.3 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/yvasiyarov/go-metrics v0.0.0-20140926110328-57bccd1ccd43 // indirect
 	github.com/yvasiyarov/newrelic_platform_go v0.0.0-20140908184405-b21fdbd4370f // indirect
 	go.opencensus.io v0.22.4 // indirect

go.sum

@@ -52,7 +52,6 @@ github.com/Azure/go-autorest/tracing v0.6.0 h1:TYi4+3m5t6K48TGI9AUdb+IzbnSxvnvUM
 github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
-github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
 github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d h1:UrqY+r/OJnIp5u0s1SbQ8dVfLCZJsnvazdBP5hS4iRs=
 github.com/Shopify/logrus-bugsnag v0.0.0-20171204204709-577dee27f20d/go.mod h1:HI8ITrYtUY+O+ZhtlqUnD8+KwNPOyugEhfP9fdUIaEQ=
 github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
@@ -60,7 +59,6 @@ github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuy
 github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190717042225-c3de453c63f4/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
 github.com/alecthomas/units v0.0.0-20190924025748-f65c72e2690d/go.mod h1:rBZYJk541a8SKzHPHnH3zbiI+7dagKZ0cgpgrD7Fyho=
-github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/aws/aws-sdk-go v1.43.16 h1:Y7wBby44f+tINqJjw5fLH3vA+gFq4uMITIKqditwM14=
 github.com/aws/aws-sdk-go v1.43.16/go.mod h1:y4AeaBuwd2Lk+GepC1E9v0qOiTws0MIWAX4oIKwKHZo=
 github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
@@ -78,7 +76,6 @@ github.com/bugsnag/osext v0.0.0-20130617224835-0dd3f918b21b/go.mod h1:obH5gd0Bsq
 github.com/bugsnag/panicwrap v0.0.0-20151223152923-e2c28503fcd0 h1:nvj0OLI3YqYXer/kZD8Ri1aaunCxIEsOst1BVJswV0o=
 github.com/bugsnag/panicwrap v0.0.0-20151223152923-e2c28503fcd0/go.mod h1:D/8v3kj0zr8ZAKg1AQ6crr+5VwKN5eIywRkfhyM/+dE=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
-github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
 github.com/cespare/xxhash/v2 v2.1.1/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/cespare/xxhash/v2 v2.1.2 h1:YRXhKfTDauu4ajMg1TPgFO5jnlC2HCbmLXMcTG5cbYE=
 github.com/cespare/xxhash/v2 v2.1.2/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
@@ -87,19 +84,12 @@ github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5P
 github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-github.com/coreos/bbolt v1.3.2/go.mod h1:iRUV2dpdMOn7Bo10OQBFzIJO9kkE559Wcmn+qkEiiKk=
+github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
-github.com/coreos/etcd v3.3.10+incompatible/go.mod h1:uF7uidLiAD3TWHmW31ZFd/JWoc32PjwdhPthX9715RE=
-github.com/coreos/go-semver v0.2.0/go.mod h1:nnelYz7RCh+5ahJtPPxZlU+153eP4D4r3EedlOD2RNk=
-github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e/go.mod h1:F5haX7vjVVG0kc13fIWeqUViNPyEJxv/OmvnBo0Yme4=
-github.com/coreos/pkg v0.0.0-20180928190104-399ea9e2e55f/go.mod h1:E3G3o1h8I7cfcXa63jLwjI0eiQQMgzzUDFVpN/nH/eA=
-github.com/cpuguy83/go-md2man/v2 v2.0.0/go.mod h1:maD7wRr/U5Z6m/iR4s+kqSMx2CaBsrgA7czyZG/E6dU=
 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/denverdino/aliyungo v0.0.0-20190125010748-a747050bb1ba h1:p6poVbjHDkKa+wtC8frBMwQtT3BmqGYBjzMwJ63tuR4=
 github.com/denverdino/aliyungo v0.0.0-20190125010748-a747050bb1ba/go.mod h1:dV8lFg6daOBZbT6/BDGIz6Y3WFGn8juu6G+CQ6LHtl0=
-github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
-github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
 github.com/dnaeon/go-vcr v1.0.1 h1:r8L/HqC0Hje5AXMu1ooW8oyQyOFv4GxqpL0nRP7SLLY=
 github.com/dnaeon/go-vcr v1.0.1/go.mod h1:aBB1+wY4s93YsC3HHjMBMrwTj2R9FHDzUr9KyGc8n1E=
 github.com/docker/go-events v0.0.0-20190806004212-e31b211e4f1c h1:+pKlWGMw7gf6bQ+oDZB4KHQFypsfjYlq/C4rfL7D3g8=
@@ -114,8 +104,6 @@ github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1m
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
 github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
-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/go-gl/glfw v0.0.0-20190409004039-e6da0acd62b1/go.mod h1:vR7hzQXu2zJy9AVAgeJqvqgH9Q5CA+iKCZ2gyEVpxRU=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
@@ -129,12 +117,10 @@ github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/me
 github.com/gofrs/uuid v4.0.0+incompatible h1:1SD/1F5pU8p29ybwgQSwpQk+mwdRrXCYuPhW6m+TnJw=
 github.com/gofrs/uuid v4.0.0+incompatible/go.mod h1:b2aQJv3Z4Fp6yNu3cdSllBxTCLRxnplIgP/c0N/04lM=
 github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
-github.com/gogo/protobuf v1.2.1/go.mod h1:hp+jE20tsWTFYpLwKvXlhS1hjn+gTNwPg2I6zVXpSg4=
 github.com/golang-jwt/jwt/v4 v4.0.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
 github.com/golang-jwt/jwt/v4 v4.2.0 h1:besgBTC8w8HjP6NzQdxwKH9Z5oQMZ24ThTrHp3cZ8eU=
 github.com/golang-jwt/jwt/v4 v4.2.0/go.mod h1:/xlHOz8bRuivTWchD4jCa+NbatV+wEUSzwAxVc6locg=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
-github.com/golang/groupcache v0.0.0-20190129154638-5b532d6fd5ef/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20190702054246-869f871628b6/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20191227052852-215e87163ea7/go.mod h1:cIg4eruTrX1D+g88fzRXU5OdNfaM+9IcxsU14FzY7Hc=
 github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e h1:1r7pUrabqp18hOBcwBwiTsbnFeTZHV9eER/QT5JVZxY=
@@ -195,23 +181,17 @@ github.com/gorilla/handlers v1.5.1 h1:9lRY6j8DEeeBT10CvO9hGW0gmky0BprnvDI5vfhUHH
 github.com/gorilla/handlers v1.5.1/go.mod h1:t8XrUpc4KVXb7HGyJ4/cEnwQiaxrX/hz1Zv/4g96P1Q=
 github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
-github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
-github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
-github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0/go.mod h1:8NvIoxWQoOIhqOTXgfV/d3M/q6VIi02HzZEHgUlZvzk=
-github.com/grpc-ecosystem/grpc-gateway v1.9.0/go.mod h1:vNeuVxBJEsws4ogUvrchl83t/GYV9WGTSLVdBhOQFDY=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.4 h1:YDjusn29QI/Das2iO9M0BHnIbxPeyuCHsjMW+lJfyTc=
 github.com/hashicorp/golang-lru v0.5.4/go.mod h1:iADmTwqILo4mZ8BN3D2Q6+9jd8WM5uGBxy+E8yxSoD4=
-github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
 github.com/ianlancetaylor/demangle v0.0.0-20181102032728-5e5cf60278f6/go.mod h1:aSSvb/t6k1mPoxDqO4vJh6VOCGPwU4O0C2/Eqndh1Sc=
-github.com/inconshreveable/mousetrap v1.0.0 h1:Z8tu5sraLXCXIcARxBp/8cbvlwVa7Z1NHg9XEKhtSvM=
+github.com/inconshreveable/mousetrap v1.0.1 h1:U3uMjPSQEBMNp1lFxmllqCPM6P5u/Xq7Pgzkat/bFNc=
-github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANytuPF1OarO4DADm73n8=
+github.com/inconshreveable/mousetrap v1.0.1/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/jmespath/go-jmespath v0.4.0 h1:BEgLn5cpjn8UN1mAw4NjwDrS35OdebyEtFe+9YPoQUg=
 github.com/jmespath/go-jmespath v0.4.0/go.mod h1:T8mJZnbsbmF+m6zOOFylbeCJqk5+pHWvzYPziyZiYoo=
 github.com/jmespath/go-jmespath/internal/testify v1.5.1 h1:shLQSRRSCCPj3f2gpwzGwWFoC7ycTf1rcQZHOlsJ6N8=
 github.com/jmespath/go-jmespath/internal/testify v1.5.1/go.mod h1:L3OGu8Wl2/fWfCI6z80xFu9LTZmf1ZRjMHUOPmWr69U=
-github.com/jonboulle/clockwork v0.1.0/go.mod h1:Ii8DK3G1RaLaWxj9trq07+26W01tbo22gdxWY5EU2bo=
 github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.7/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
@@ -222,7 +202,6 @@ github.com/jstemmer/go-junit-report v0.0.0-20190106144839-af01ea7f8024/go.mod h1
 github.com/jstemmer/go-junit-report v0.9.1/go.mod h1:Brl9GWCQeLvo8nXZwPNNblvFj/XSXhF0NWZEnDohbsk=
 github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
 github.com/julienschmidt/httprouter v1.3.0/go.mod h1:JR6WtHb+2LUe8TCKY3cZOxFyyO8IZAc4RVcycCCAKdM=
-github.com/kisielk/errcheck v1.1.0/go.mod h1:EZBBE59ingxPouuu3KfxchcWSUPOHkagtvWXihfKN4Q=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/konsorten/go-windows-terminal-sequences v1.0.3/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
@@ -232,10 +211,8 @@ github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORN
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
-github.com/magiconair/properties v1.8.0/go.mod h1:PppfXfuXeibc/6YijjN8zIbojt8czPbwD3XqdrwzmxQ=
 github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
 github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
-github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mitchellh/mapstructure v1.1.2 h1:fmNYVwqnSfB9mZU6OS2O6GsXM+wcskZDuKQzvN1EDeE=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mitchellh/osext v0.0.0-20151018003038-5e2d6d41470f h1:2+myh5ml7lgEU/51gbeLHfKGNfgEQQIWrlbdaOsidbQ=
@@ -249,19 +226,16 @@ github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRW
 github.com/mwitkow/go-conntrack v0.0.0-20190716064945-2f068394615f/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
 github.com/ncw/swift v1.0.47 h1:4DQRPj35Y41WogBxyhOXlrI37nzGlyEcsforeudyYPQ=
 github.com/ncw/swift v1.0.47/go.mod h1:23YIA4yWVnGwv2dQlN4bB7egfYX6YLn0Yo/S6zZO/ZM=
-github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
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@@ -273,8 +247,6 @@ github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:
 github.com/prometheus/client_model v0.0.0-20190812154241-14fe0d1b01d4/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
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-github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
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 github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB80sz/V91rCo=
@@ -282,33 +254,23 @@ github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9
 github.com/prometheus/common v0.32.1 h1:hWIdL3N2HoUx3B8j3YN9mWor0qhY/NlEKZEaXxuIRh4=
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-github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
-github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
-github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
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@@ -316,10 +278,6 @@ github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UV
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
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-github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
-github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
-github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q53MR2AWcXfiuqkDkRtnGDLqkBTpCHuJHxtU=
-github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
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 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
@@ -329,16 +287,12 @@ github.com/yvasiyarov/gorelic v0.0.0-20141212073537-a9bba5b9ab50 h1:hlE8//ciYMzt
 github.com/yvasiyarov/gorelic v0.0.0-20141212073537-a9bba5b9ab50/go.mod h1:NUSPSUX/bi6SeDMUh6brw0nXpxHnc96TguQh0+r/ssA=
 github.com/yvasiyarov/newrelic_platform_go v0.0.0-20140908184405-b21fdbd4370f h1:ERexzlUfuTvpE74urLSbIQW0Z/6hF9t8U4NsJLaioAY=
 github.com/yvasiyarov/newrelic_platform_go v0.0.0-20140908184405-b21fdbd4370f/go.mod h1:GlGEuHIJweS1mbCqG+7vt2nvWLzLLnRHbXz5JKd/Qbg=
-go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
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 go.opencensus.io v0.22.4 h1:LYy1Hy3MJdrCdMwwzxA/dRok4ejH+RwNGbuoD9fCjto=
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-go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
-go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
-go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
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@@ -381,14 +335,12 @@ golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
-golang.org/x/net v0.0.0-20181220203305-927f97764cc3/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190503192946-f4e77d36d62c/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
-golang.org/x/net v0.0.0-20190522155817-f3200d17e092/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190603091049-60506f45cf65/go.mod h1:HSz+uSET+XFnRR8LxR5pz3Of3rY3CfYBVs4xY44aLks=
 golang.org/x/net v0.0.0-20190613194153-d28f0bde5980/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -432,7 +384,6 @@ golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
-golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
@@ -486,7 +437,6 @@ golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/time v0.0.0-20181108054448-85acf8d2951c/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20190308202827-9d24e82272b4/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
 golang.org/x/time v0.0.0-20191024005414-555d28b269f0/go.mod h1:tRJNPiyCQ0inRvYxbN9jk5I+vvW/OXSQhTDSoE431IQ=
-golang.org/x/tools v0.0.0-20180221164845-07fd8470d635/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
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@@ -590,7 +540,6 @@ google.golang.org/genproto v0.0.0-20200825200019-8632dd797987 h1:PDIOdWxZ8eRizhK
 google.golang.org/genproto v0.0.0-20200825200019-8632dd797987/go.mod h1:FWY/as6DDZQgahTzZj3fqbO1CbirC29ZNUFHwi0/+no=
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 google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiqXj38=
-google.golang.org/grpc v1.21.0/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.21.1/go.mod h1:oYelfM1adQP15Ek0mdvEgi9Df8B9CZIaU1084ijfRaM=
 google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
 google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
@@ -621,8 +570,6 @@ gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/errgo.v2 v2.1.0/go.mod h1:hNsd1EY+bozCKY1Ytp96fpM3vjJbqLJn88ws8XvfDNI=
-gopkg.in/resty.v1 v1.12.0/go.mod h1:mDo4pnntr5jdWRML875a/NmxYqAlA73dVijT2AXvQQo=
-gopkg.in/yaml.v2 v2.0.0-20170812160011-eb3733d160e7/go.mod h1:JAlM8MvJe8wmxCU4Bli9HhUf9+ttbYbLASfIpnQbh74=
 gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
@@ -631,6 +578,7 @@ gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
 gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=

vendor/github.com/inconshreveable/mousetrap/LICENSE

@@ -1,13 +1,201 @@
-Copyright 2014 Alan Shreve
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
 
-Licensed under the Apache License, Version 2.0 (the "License");
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
-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
+   1. Definitions.
 
-Unless required by applicable law or agreed to in writing, software
+      "License" shall mean the terms and conditions for use, reproduction,
-distributed under the License is distributed on an "AS IS" BASIS,
+      and distribution as defined by Sections 1 through 9 of this document.
-WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+
-See the License for the specific language governing permissions and
+      "Licensor" shall mean the copyright owner or entity authorized by
-limitations under the License.
+      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
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+      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.
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+      "Source" form shall mean the preferred form for making modifications,
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+      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.
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+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
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+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      the Work or Derivative Works thereof, You may choose to offer,
+      and charge a fee for, acceptance of support, warranty, indemnity,
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+      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
+      the brackets!)  The text should be enclosed in the appropriate
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+      file or class name and description of purpose be included on the
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+      identification within third-party archives.
+
+   Copyright 2022 Alan Shreve (@inconshreveable)
+
+   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/spf13/cobra/.golangci.yml

@@ -0,0 +1,62 @@
+# Copyright 2013-2022 The Cobra 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.
+
+run:
+  deadline: 5m
+
+linters:
+  disable-all: true
+  enable:
+    #- bodyclose
+    - deadcode
+    #- depguard
+    #- dogsled
+    #- dupl
+    - errcheck
+    #- exhaustive
+    #- funlen
+    - gas
+    #- gochecknoinits
+    - goconst
+    #- gocritic
+    #- gocyclo
+    #- gofmt
+    - goimports
+    - golint
+    #- gomnd
+    #- goprintffuncname
+    #- gosec
+    #- gosimple
+    - govet
+    - ineffassign
+    - interfacer
+    #- lll
+    - maligned
+    - megacheck
+    #- misspell
+    #- nakedret
+    #- noctx
+    #- nolintlint
+    #- rowserrcheck
+    #- scopelint
+    #- staticcheck
+    - structcheck
+    #- stylecheck
+    #- typecheck
+    - unconvert
+    #- unparam
+    #- unused
+    - varcheck
+    #- whitespace
+  fast: false

vendor/github.com/spf13/cobra/.travis.yml

@@ -1,29 +0,0 @@
-language: go
-
-stages:
-  - diff
-  - test
-  - build
-
-go:
-  - 1.12.x
-  - 1.13.x
-  - tip
-
-before_install:
-  - go get -u github.com/kyoh86/richgo
-  - go get -u github.com/mitchellh/gox
-
-matrix:
-  allow_failures:
-    - go: tip
-  include:
-    - stage: diff
-      go: 1.13.x
-      script: make fmt
-    - stage: build
-      go: 1.13.x
-      script: make cobra_generator
-
-script: 
- - make test

vendor/github.com/spf13/cobra/CONDUCT.md

@@ -0,0 +1,37 @@
+## Cobra User Contract
+
+### Versioning
+Cobra will follow a steady release cadence. Non breaking changes will be released as minor versions quarterly. Patch bug releases are at the discretion of the maintainers. Users can expect security patch fixes to be released within relatively short order of a CVE becoming known. For more information on security patch fixes see the CVE section below. Releases will follow [Semantic Versioning](https://semver.org/). Users tracking the Master branch should expect unpredictable breaking changes as the project continues to move forward. For stability, it is highly recommended to use a release.
+
+### Backward Compatibility
+We will maintain two major releases in a moving window. The N-1 release will only receive bug fixes and security updates and will be dropped once N+1 is released.
+
+### Deprecation
+Deprecation of Go versions or dependent packages will only occur in major releases. To reduce the change of this taking users by surprise, any large deprecation will be preceded by an announcement in the [#cobra slack channel](https://gophers.slack.com/archives/CD3LP1199) and an Issue on Github.
+
+### CVE
+Maintainers will make every effort to release security patches in the case of a medium to high severity CVE directly impacting the library. The speed in which these patches reach a release is up to the discretion of the maintainers. A low severity CVE may be a lower priority than a high severity one.
+
+### Communication
+Cobra maintainers will use GitHub issues and the [#cobra slack channel](https://gophers.slack.com/archives/CD3LP1199) as the primary means of communication with the community. This is to foster open communication with all users and contributors.
+
+### Breaking Changes
+Breaking changes are generally allowed in the master branch, as this is the branch used to develop the next release of Cobra.
+
+There may be times, however, when master is closed for breaking changes. This is likely to happen as we near the release of a new version.
+
+Breaking changes are not allowed in release branches, as these represent minor versions that have already been released. These version have consumers who expect the APIs, behaviors, etc, to remain stable during the lifetime of the patch stream for the minor release.
+
+Examples of breaking changes include:
+- Removing or renaming exported constant, variable, type, or function.
+- Updating the version of critical libraries such as `spf13/pflag`, `spf13/viper` etc...
+  - Some version updates may be acceptable for picking up bug fixes, but maintainers must exercise caution when reviewing.
+
+There may, at times, need to be exceptions where breaking changes are allowed in release branches. These are at the discretion of the project's maintainers, and must be carefully considered before merging.
+
+### CI Testing
+Maintainers will ensure the Cobra test suite utilizes the current supported versions of Golang.
+
+### Disclaimer
+Changes to this document and the contents therein are at the discretion of the maintainers.
+None of the contents of this document are legally binding in any way to the maintainers or the users.

vendor/github.com/spf13/cobra/CONTRIBUTING.md

@@ -0,0 +1,50 @@
+# Contributing to Cobra
+
+Thank you so much for contributing to Cobra. We appreciate your time and help.
+Here are some guidelines to help you get started.
+
+## Code of Conduct
+
+Be kind and respectful to the members of the community. Take time to educate
+others who are seeking help. Harassment of any kind will not be tolerated.
+
+## Questions
+
+If you have questions regarding Cobra, feel free to ask it in the community
+[#cobra Slack channel][cobra-slack]
+
+## Filing a bug or feature
+
+1. Before filing an issue, please check the existing issues to see if a
+   similar one was already opened. If there is one already opened, feel free
+   to comment on it.
+1. If you believe you've found a bug, please provide detailed steps of
+   reproduction, the version of Cobra and anything else you believe will be
+   useful to help troubleshoot it (e.g. OS environment, environment variables,
+   etc...). Also state the current behavior vs. the expected behavior.
+1. If you'd like to see a feature or an enhancement please open an issue with
+   a clear title and description of what the feature is and why it would be
+   beneficial to the project and its users.
+
+## Submitting changes
+
+1. CLA: Upon submitting a Pull Request (PR), contributors will be prompted to
+   sign a CLA. Please sign the CLA :slightly_smiling_face:
+1. Tests: If you are submitting code, please ensure you have adequate tests
+   for the feature. Tests can be run via `go test ./...` or `make test`.
+1. Since this is golang project, ensure the new code is properly formatted to
+   ensure code consistency. Run `make all`.
+
+### Quick steps to contribute
+
+1. Fork the project.
+1. Download your fork to your PC (`git clone https://github.com/your_username/cobra && cd cobra`)
+1. Create your feature branch (`git checkout -b my-new-feature`)
+1. Make changes and run tests (`make test`)
+1. Add them to staging (`git add .`)
+1. Commit your changes (`git commit -m 'Add some feature'`)
+1. Push to the branch (`git push origin my-new-feature`)
+1. Create new pull request
+
+<!-- Links -->
+[cobra-slack]: https://gophers.slack.com/archives/CD3LP1199

vendor/github.com/spf13/cobra/MAINTAINERS

@@ -0,0 +1,13 @@
+maintainers:
+- spf13
+- johnSchnake
+- jpmcb
+- marckhouzam
+inactive:
+- anthonyfok
+- bep
+- bogem
+- broady
+- eparis
+- jharshman
+- wfernandes

vendor/github.com/spf13/cobra/Makefile

@@ -1,36 +1,35 @@
 BIN="./bin"
 SRC=$(shell find . -name "*.go")
 
-ifeq (, $(shell which richgo))
+ifeq (, $(shell which golangci-lint))
-$(warning "could not find richgo in $(PATH), run: go get github.com/kyoh86/richgo")
+$(warning "could not find golangci-lint in $(PATH), run: curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | sh")
 endif
 
-.PHONY: fmt vet test cobra_generator install_deps clean
+ifeq (, $(shell which richgo))
+$(warning "could not find richgo in $(PATH), run: go install github.com/kyoh86/richgo@latest")
+endif
+
+.PHONY: fmt lint test install_deps clean
 
 default: all
 
-all: fmt vet test cobra_generator	
+all: fmt test
 
 fmt:
 	$(info ******************** checking formatting ********************)
 	@test -z $(shell gofmt -l $(SRC)) || (gofmt -d $(SRC); exit 1)
 
-test: install_deps vet
+lint:
+	$(info ******************** running lint tools ********************)
+	golangci-lint run -v
+
+test: install_deps
 	$(info ******************** running tests ********************)
 	richgo test -v ./...
 
-cobra_generator: install_deps
-	$(info ******************** building generator ********************)
-	mkdir -p $(BIN)
-	make -C cobra all
-
 install_deps:
 	$(info ******************** downloading dependencies ********************)
 	go get -v ./...
 
-vet:
-	$(info ******************** vetting ********************)
-	go vet ./...
-
 clean:
 	rm -rf $(BIN)

vendor/github.com/spf13/cobra/README.md

@@ -1,82 +1,35 @@
 ![cobra logo](https://cloud.githubusercontent.com/assets/173412/10886352/ad566232-814f-11e5-9cd0-aa101788c117.png)
 
-Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files.
+Cobra is a library for creating powerful modern CLI applications.
 
-Many of the most widely used Go projects are built using Cobra, such as:
+Cobra is used in many Go projects such as [Kubernetes](https://kubernetes.io/),
-[Kubernetes](http://kubernetes.io/),
+[Hugo](https://gohugo.io), and [GitHub CLI](https://github.com/cli/cli) to
-[Hugo](http://gohugo.io),
+name a few. [This list](./projects_using_cobra.md) contains a more extensive list of projects using Cobra.
-[rkt](https://github.com/coreos/rkt),
-[etcd](https://github.com/coreos/etcd),
-[Moby (former Docker)](https://github.com/moby/moby),
-[Docker (distribution)](https://github.com/docker/distribution),
-[OpenShift](https://www.openshift.com/),
-[Delve](https://github.com/derekparker/delve),
-[GopherJS](http://www.gopherjs.org/),
-[CockroachDB](http://www.cockroachlabs.com/),
-[Bleve](http://www.blevesearch.com/),
-[ProjectAtomic (enterprise)](http://www.projectatomic.io/),
-[Giant Swarm's gsctl](https://github.com/giantswarm/gsctl),
-[Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack),
-[rclone](http://rclone.org/),
-[nehm](https://github.com/bogem/nehm),
-[Pouch](https://github.com/alibaba/pouch),
-[Istio](https://istio.io),
-[Prototool](https://github.com/uber/prototool),
-[mattermost-server](https://github.com/mattermost/mattermost-server),
-[Gardener](https://github.com/gardener/gardenctl),
-[Linkerd](https://linkerd.io/),
-[Github CLI](https://github.com/cli/cli)
-etc.
 
-[![Build Status](https://travis-ci.org/spf13/cobra.svg "Travis CI status")](https://travis-ci.org/spf13/cobra)
+[![](https://img.shields.io/github/workflow/status/spf13/cobra/Test?longCache=tru&label=Test&logo=github%20actions&logoColor=fff)](https://github.com/spf13/cobra/actions?query=workflow%3ATest)
-[![GoDoc](https://godoc.org/github.com/spf13/cobra?status.svg)](https://godoc.org/github.com/spf13/cobra)
+[![Go Reference](https://pkg.go.dev/badge/github.com/spf13/cobra.svg)](https://pkg.go.dev/github.com/spf13/cobra)
 [![Go Report Card](https://goreportcard.com/badge/github.com/spf13/cobra)](https://goreportcard.com/report/github.com/spf13/cobra)
-
+[![Slack](https://img.shields.io/badge/Slack-cobra-brightgreen)](https://gophers.slack.com/archives/CD3LP1199)
-# Table of Contents
-
-- [Overview](#overview)
-- [Concepts](#concepts)
-  * [Commands](#commands)
-  * [Flags](#flags)
-- [Installing](#installing)
-- [Getting Started](#getting-started)
-  * [Using the Cobra Generator](#using-the-cobra-generator)
-  * [Using the Cobra Library](#using-the-cobra-library)
-  * [Working with Flags](#working-with-flags)
-  * [Positional and Custom Arguments](#positional-and-custom-arguments)
-  * [Example](#example)
-  * [Help Command](#help-command)
-  * [Usage Message](#usage-message)
-  * [PreRun and PostRun Hooks](#prerun-and-postrun-hooks)
-  * [Suggestions when "unknown command" happens](#suggestions-when-unknown-command-happens)
-  * [Generating documentation for your command](#generating-documentation-for-your-command)
-  * [Generating bash completions](#generating-bash-completions)
-  * [Generating zsh completions](#generating-zsh-completions)
-- [Contributing](#contributing)
-- [License](#license)
 
 # Overview
 
 Cobra is a library providing a simple interface to create powerful modern CLI
 interfaces similar to git & go tools.
 
-Cobra is also an application that will generate your application scaffolding to rapidly
-develop a Cobra-based application.
-
 Cobra provides:
 * Easy subcommand-based CLIs: `app server`, `app fetch`, etc.
 * Fully POSIX-compliant flags (including short & long versions)
 * Nested subcommands
 * Global, local and cascading flags
-* Easy generation of applications & commands with `cobra init appname` & `cobra add cmdname`
 * Intelligent suggestions (`app srver`... did you mean `app server`?)
 * Automatic help generation for commands and flags
+* Grouping help for subcommands
 * Automatic help flag recognition of `-h`, `--help`, etc.
-* Automatically generated bash autocomplete for your application
+* Automatically generated shell autocomplete for your application (bash, zsh, fish, powershell)
 * Automatically generated man pages for your application
 * Command aliases so you can change things without breaking them
 * The flexibility to define your own help, usage, etc.
-* Optional tight integration with [viper](http://github.com/spf13/viper) for 12-factor apps
+* Optional seamless integration with [viper](https://github.com/spf13/viper) for 12-factor apps
 
 # Concepts
 
@@ -84,13 +37,13 @@ Cobra is built on a structure of commands, arguments & flags.
 
 **Commands** represent actions, **Args** are things and **Flags** are modifiers for those actions.
 
-The best applications will read like sentences when used. Users will know how
+The best applications read like sentences when used, and as a result, users
-to use the application because they will natively understand how to use it.
+intuitively know how to interact with them.
 
 The pattern to follow is
-`APPNAME VERB NOUN --ADJECTIVE.`
+`APPNAME VERB NOUN --ADJECTIVE`
     or
-`APPNAME COMMAND ARG --FLAG`
+`APPNAME COMMAND ARG --FLAG`.
 
 A few good real world examples may better illustrate this point.
 
@@ -110,7 +63,7 @@ have children commands and optionally run an action.
 
 In the example above, 'server' is the command.
 
-[More about cobra.Command](https://godoc.org/github.com/spf13/cobra#Command)
+[More about cobra.Command](https://pkg.go.dev/github.com/spf13/cobra#Command)
 
 ## Flags
 
@@ -127,10 +80,11 @@ which maintains the same interface while adding POSIX compliance.
 
 # Installing
 Using Cobra is easy. First, use `go get` to install the latest version
-of the library. This command will install the `cobra` generator executable
+of the library.     
-along with the library and its dependencies:
 
-    go get -u github.com/spf13/cobra/cobra
+```
+go get -u github.com/spf13/cobra@latest
+```
 
 Next, include Cobra in your application:
 
@@ -138,632 +92,20 @@ Next, include Cobra in your application:
 import "github.com/spf13/cobra"
 ```
 
-# Getting Started
+# Usage
+`cobra-cli` is a command line program to generate cobra applications and command files.
+It will bootstrap your application scaffolding to rapidly
+develop a Cobra-based application. It is the easiest way to incorporate Cobra into your application.
 
-While you are welcome to provide your own organization, typically a Cobra-based
+It can be installed by running:
-application will follow the following organizational structure:
 
 ```
-  ▾ appName/
+go install github.com/spf13/cobra-cli@latest
-    ▾ cmd/
-        add.go
-        your.go
-        commands.go
-        here.go
-      main.go
 ```
 
-In a Cobra app, typically the main.go file is very bare. It serves one purpose: initializing Cobra.
+For complete details on using the Cobra-CLI generator, please read [The Cobra Generator README](https://github.com/spf13/cobra-cli/blob/main/README.md)
 
-```go
+For complete details on using the Cobra library, please read the [The Cobra User Guide](user_guide.md).
-package main
-
-import (
-  "{pathToYourApp}/cmd"
-)
-
-func main() {
-  cmd.Execute()
-}
-```
-
-## Using the Cobra Generator
-
-Cobra provides its own program that will create your application and add any
-commands you want. It's the easiest way to incorporate Cobra into your application.
-
-[Here](https://github.com/spf13/cobra/blob/master/cobra/README.md) you can find more information about it.
-
-## Using the Cobra Library
-
-To manually implement Cobra you need to create a bare main.go file and a rootCmd file.
-You will optionally provide additional commands as you see fit.
-
-### Create rootCmd
-
-Cobra doesn't require any special constructors. Simply create your commands.
-
-Ideally you place this in app/cmd/root.go:
-
-```go
-var rootCmd = &cobra.Command{
-  Use:   "hugo",
-  Short: "Hugo is a very fast static site generator",
-  Long: `A Fast and Flexible Static Site Generator built with
-                love by spf13 and friends in Go.
-                Complete documentation is available at http://hugo.spf13.com`,
-  Run: func(cmd *cobra.Command, args []string) {
-    // Do Stuff Here
-  },
-}
-
-func Execute() {
-  if err := rootCmd.Execute(); err != nil {
-    fmt.Println(err)
-    os.Exit(1)
-  }
-}
-```
-
-You will additionally define flags and handle configuration in your init() function.
-
-For example cmd/root.go:
-
-```go
-package cmd
-
-import (
-	"fmt"
-	"os"
-
-	homedir "github.com/mitchellh/go-homedir"
-	"github.com/spf13/cobra"
-	"github.com/spf13/viper"
-)
-
-var (
-	// Used for flags.
-	cfgFile     string
-	userLicense string
-
-	rootCmd = &cobra.Command{
-		Use:   "cobra",
-		Short: "A generator for Cobra based Applications",
-		Long: `Cobra is a CLI library for Go that empowers applications.
-This application is a tool to generate the needed files
-to quickly create a Cobra application.`,
-	}
-)
-
-// Execute executes the root command.
-func Execute() error {
-	return rootCmd.Execute()
-}
-
-func init() {
-	cobra.OnInitialize(initConfig)
-
-	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
-	rootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "author name for copyright attribution")
-	rootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "name of license for the project")
-	rootCmd.PersistentFlags().Bool("viper", true, "use Viper for configuration")
-	viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author"))
-	viper.BindPFlag("useViper", rootCmd.PersistentFlags().Lookup("viper"))
-	viper.SetDefault("author", "NAME HERE <EMAIL ADDRESS>")
-	viper.SetDefault("license", "apache")
-
-	rootCmd.AddCommand(addCmd)
-	rootCmd.AddCommand(initCmd)
-}
-
-func er(msg interface{}) {
-	fmt.Println("Error:", msg)
-	os.Exit(1)
-}
-
-func initConfig() {
-	if cfgFile != "" {
-		// Use config file from the flag.
-		viper.SetConfigFile(cfgFile)
-	} else {
-		// Find home directory.
-		home, err := homedir.Dir()
-		if err != nil {
-			er(err)
-		}
-
-		// Search config in home directory with name ".cobra" (without extension).
-		viper.AddConfigPath(home)
-		viper.SetConfigName(".cobra")
-	}
-
-	viper.AutomaticEnv()
-
-	if err := viper.ReadInConfig(); err == nil {
-		fmt.Println("Using config file:", viper.ConfigFileUsed())
-	}
-}
-```
-
-### Create your main.go
-
-With the root command you need to have your main function execute it.
-Execute should be run on the root for clarity, though it can be called on any command.
-
-In a Cobra app, typically the main.go file is very bare. It serves, one purpose, to initialize Cobra.
-
-```go
-package main
-
-import (
-  "{pathToYourApp}/cmd"
-)
-
-func main() {
-  cmd.Execute()
-}
-```
-
-### Create additional commands
-
-Additional commands can be defined and typically are each given their own file
-inside of the cmd/ directory.
-
-If you wanted to create a version command you would create cmd/version.go and
-populate it with the following:
-
-```go
-package cmd
-
-import (
-  "fmt"
-
-  "github.com/spf13/cobra"
-)
-
-func init() {
-  rootCmd.AddCommand(versionCmd)
-}
-
-var versionCmd = &cobra.Command{
-  Use:   "version",
-  Short: "Print the version number of Hugo",
-  Long:  `All software has versions. This is Hugo's`,
-  Run: func(cmd *cobra.Command, args []string) {
-    fmt.Println("Hugo Static Site Generator v0.9 -- HEAD")
-  },
-}
-```
-
-## Working with Flags
-
-Flags provide modifiers to control how the action command operates.
-
-### Assign flags to a command
-
-Since the flags are defined and used in different locations, we need to
-define a variable outside with the correct scope to assign the flag to
-work with.
-
-```go
-var Verbose bool
-var Source string
-```
-
-There are two different approaches to assign a flag.
-
-### Persistent Flags
-
-A flag can be 'persistent' meaning that this flag will be available to the
-command it's assigned to as well as every command under that command. For
-global flags, assign a flag as a persistent flag on the root.
-
-```go
-rootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output")
-```
-
-### Local Flags
-
-A flag can also be assigned locally which will only apply to that specific command.
-
-```go
-localCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from")
-```
-
-### Local Flag on Parent Commands
-
-By default Cobra only parses local flags on the target command, any local flags on
-parent commands are ignored. By enabling `Command.TraverseChildren` Cobra will
-parse local flags on each command before executing the target command.
-
-```go
-command := cobra.Command{
-  Use: "print [OPTIONS] [COMMANDS]",
-  TraverseChildren: true,
-}
-```
-
-### Bind Flags with Config
-
-You can also bind your flags with [viper](https://github.com/spf13/viper):
-```go
-var author string
-
-func init() {
-  rootCmd.PersistentFlags().StringVar(&author, "author", "YOUR NAME", "Author name for copyright attribution")
-  viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author"))
-}
-```
-
-In this example the persistent flag `author` is bound with `viper`.
-**Note**, that the variable `author` will not be set to the value from config,
-when the `--author` flag is not provided by user.
-
-More in [viper documentation](https://github.com/spf13/viper#working-with-flags).
-
-### Required flags
-
-Flags are optional by default. If instead you wish your command to report an error
-when a flag has not been set, mark it as required:
-```go
-rootCmd.Flags().StringVarP(&Region, "region", "r", "", "AWS region (required)")
-rootCmd.MarkFlagRequired("region")
-```
-
-## Positional and Custom Arguments
-
-Validation of positional arguments can be specified using the `Args` field
-of `Command`.
-
-The following validators are built in:
-
-- `NoArgs` - the command will report an error if there are any positional args.
-- `ArbitraryArgs` - the command will accept any args.
-- `OnlyValidArgs` - the command will report an error if there are any positional args that are not in the `ValidArgs` field of `Command`.
-- `MinimumNArgs(int)` - the command will report an error if there are not at least N positional args.
-- `MaximumNArgs(int)` - the command will report an error if there are more than N positional args.
-- `ExactArgs(int)` - the command will report an error if there are not exactly N positional args.
-- `ExactValidArgs(int)` - the command will report an error if there are not exactly N positional args OR if there are any positional args that are not in the `ValidArgs` field of `Command`
-- `RangeArgs(min, max)` - the command will report an error if the number of args is not between the minimum and maximum number of expected args.
-
-An example of setting the custom validator:
-
-```go
-var cmd = &cobra.Command{
-  Short: "hello",
-  Args: func(cmd *cobra.Command, args []string) error {
-    if len(args) < 1 {
-      return errors.New("requires a color argument")
-    }
-    if myapp.IsValidColor(args[0]) {
-      return nil
-    }
-    return fmt.Errorf("invalid color specified: %s", args[0])
-  },
-  Run: func(cmd *cobra.Command, args []string) {
-    fmt.Println("Hello, World!")
-  },
-}
-```
-
-## Example
-
-In the example below, we have defined three commands. Two are at the top level
-and one (cmdTimes) is a child of one of the top commands. In this case the root
-is not executable meaning that a subcommand is required. This is accomplished
-by not providing a 'Run' for the 'rootCmd'.
-
-We have only defined one flag for a single command.
-
-More documentation about flags is available at https://github.com/spf13/pflag
-
-```go
-package main
-
-import (
-  "fmt"
-  "strings"
-
-  "github.com/spf13/cobra"
-)
-
-func main() {
-  var echoTimes int
-
-  var cmdPrint = &cobra.Command{
-    Use:   "print [string to print]",
-    Short: "Print anything to the screen",
-    Long: `print is for printing anything back to the screen.
-For many years people have printed back to the screen.`,
-    Args: cobra.MinimumNArgs(1),
-    Run: func(cmd *cobra.Command, args []string) {
-      fmt.Println("Print: " + strings.Join(args, " "))
-    },
-  }
-
-  var cmdEcho = &cobra.Command{
-    Use:   "echo [string to echo]",
-    Short: "Echo anything to the screen",
-    Long: `echo is for echoing anything back.
-Echo works a lot like print, except it has a child command.`,
-    Args: cobra.MinimumNArgs(1),
-    Run: func(cmd *cobra.Command, args []string) {
-      fmt.Println("Echo: " + strings.Join(args, " "))
-    },
-  }
-
-  var cmdTimes = &cobra.Command{
-    Use:   "times [string to echo]",
-    Short: "Echo anything to the screen more times",
-    Long: `echo things multiple times back to the user by providing
-a count and a string.`,
-    Args: cobra.MinimumNArgs(1),
-    Run: func(cmd *cobra.Command, args []string) {
-      for i := 0; i < echoTimes; i++ {
-        fmt.Println("Echo: " + strings.Join(args, " "))
-      }
-    },
-  }
-
-  cmdTimes.Flags().IntVarP(&echoTimes, "times", "t", 1, "times to echo the input")
-
-  var rootCmd = &cobra.Command{Use: "app"}
-  rootCmd.AddCommand(cmdPrint, cmdEcho)
-  cmdEcho.AddCommand(cmdTimes)
-  rootCmd.Execute()
-}
-```
-
-For a more complete example of a larger application, please checkout [Hugo](http://gohugo.io/).
-
-## Help Command
-
-Cobra automatically adds a help command to your application when you have subcommands.
-This will be called when a user runs 'app help'. Additionally, help will also
-support all other commands as input. Say, for instance, you have a command called
-'create' without any additional configuration; Cobra will work when 'app help
-create' is called.  Every command will automatically have the '--help' flag added.
-
-### Example
-
-The following output is automatically generated by Cobra. Nothing beyond the
-command and flag definitions are needed.
-
-    $ cobra help
-
-    Cobra is a CLI library for Go that empowers applications.
-    This application is a tool to generate the needed files
-    to quickly create a Cobra application.
-
-    Usage:
-      cobra [command]
-
-    Available Commands:
-      add         Add a command to a Cobra Application
-      help        Help about any command
-      init        Initialize a Cobra Application
-
-    Flags:
-      -a, --author string    author name for copyright attribution (default "YOUR NAME")
-          --config string    config file (default is $HOME/.cobra.yaml)
-      -h, --help             help for cobra
-      -l, --license string   name of license for the project
-          --viper            use Viper for configuration (default true)
-
-    Use "cobra [command] --help" for more information about a command.
-
-
-Help is just a command like any other. There is no special logic or behavior
-around it. In fact, you can provide your own if you want.
-
-### Defining your own help
-
-You can provide your own Help command or your own template for the default command to use
-with following functions:
-
-```go
-cmd.SetHelpCommand(cmd *Command)
-cmd.SetHelpFunc(f func(*Command, []string))
-cmd.SetHelpTemplate(s string)
-```
-
-The latter two will also apply to any children commands.
-
-## Usage Message
-
-When the user provides an invalid flag or invalid command, Cobra responds by
-showing the user the 'usage'.
-
-### Example
-You may recognize this from the help above. That's because the default help
-embeds the usage as part of its output.
-
-    $ cobra --invalid
-    Error: unknown flag: --invalid
-    Usage:
-      cobra [command]
-
-    Available Commands:
-      add         Add a command to a Cobra Application
-      help        Help about any command
-      init        Initialize a Cobra Application
-
-    Flags:
-      -a, --author string    author name for copyright attribution (default "YOUR NAME")
-          --config string    config file (default is $HOME/.cobra.yaml)
-      -h, --help             help for cobra
-      -l, --license string   name of license for the project
-          --viper            use Viper for configuration (default true)
-
-    Use "cobra [command] --help" for more information about a command.
-
-### Defining your own usage
-You can provide your own usage function or template for Cobra to use.
-Like help, the function and template are overridable through public methods:
-
-```go
-cmd.SetUsageFunc(f func(*Command) error)
-cmd.SetUsageTemplate(s string)
-```
-
-## Version Flag
-
-Cobra adds a top-level '--version' flag if the Version field is set on the root command.
-Running an application with the '--version' flag will print the version to stdout using
-the version template. The template can be customized using the
-`cmd.SetVersionTemplate(s string)` function.
-
-## PreRun and PostRun Hooks
-
-It is possible to run functions before or after the main `Run` function of your command. The `PersistentPreRun` and `PreRun` functions will be executed before `Run`. `PersistentPostRun` and `PostRun` will be executed after `Run`.  The `Persistent*Run` functions will be inherited by children if they do not declare their own.  These functions are run in the following order:
-
-- `PersistentPreRun`
-- `PreRun`
-- `Run`
-- `PostRun`
-- `PersistentPostRun`
-
-An example of two commands which use all of these features is below.  When the subcommand is executed, it will run the root command's `PersistentPreRun` but not the root command's `PersistentPostRun`:
-
-```go
-package main
-
-import (
-  "fmt"
-
-  "github.com/spf13/cobra"
-)
-
-func main() {
-
-  var rootCmd = &cobra.Command{
-    Use:   "root [sub]",
-    Short: "My root command",
-    PersistentPreRun: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside rootCmd PersistentPreRun with args: %v\n", args)
-    },
-    PreRun: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside rootCmd PreRun with args: %v\n", args)
-    },
-    Run: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside rootCmd Run with args: %v\n", args)
-    },
-    PostRun: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside rootCmd PostRun with args: %v\n", args)
-    },
-    PersistentPostRun: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside rootCmd PersistentPostRun with args: %v\n", args)
-    },
-  }
-
-  var subCmd = &cobra.Command{
-    Use:   "sub [no options!]",
-    Short: "My subcommand",
-    PreRun: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside subCmd PreRun with args: %v\n", args)
-    },
-    Run: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside subCmd Run with args: %v\n", args)
-    },
-    PostRun: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside subCmd PostRun with args: %v\n", args)
-    },
-    PersistentPostRun: func(cmd *cobra.Command, args []string) {
-      fmt.Printf("Inside subCmd PersistentPostRun with args: %v\n", args)
-    },
-  }
-
-  rootCmd.AddCommand(subCmd)
-
-  rootCmd.SetArgs([]string{""})
-  rootCmd.Execute()
-  fmt.Println()
-  rootCmd.SetArgs([]string{"sub", "arg1", "arg2"})
-  rootCmd.Execute()
-}
-```
-
-Output:
-```
-Inside rootCmd PersistentPreRun with args: []
-Inside rootCmd PreRun with args: []
-Inside rootCmd Run with args: []
-Inside rootCmd PostRun with args: []
-Inside rootCmd PersistentPostRun with args: []
-
-Inside rootCmd PersistentPreRun with args: [arg1 arg2]
-Inside subCmd PreRun with args: [arg1 arg2]
-Inside subCmd Run with args: [arg1 arg2]
-Inside subCmd PostRun with args: [arg1 arg2]
-Inside subCmd PersistentPostRun with args: [arg1 arg2]
-```
-
-## Suggestions when "unknown command" happens
-
-Cobra will print automatic suggestions when "unknown command" errors happen. This allows Cobra to behave similarly to the `git` command when a typo happens. For example:
-
-```
-$ hugo srever
-Error: unknown command "srever" for "hugo"
-
-Did you mean this?
-        server
-
-Run 'hugo --help' for usage.
-```
-
-Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion.
-
-If you need to disable suggestions or tweak the string distance in your command, use:
-
-```go
-command.DisableSuggestions = true
-```
-
-or
-
-```go
-command.SuggestionsMinimumDistance = 1
-```
-
-You can also explicitly set names for which a given command will be suggested using the `SuggestFor` attribute. This allows suggestions for strings that are not close in terms of string distance, but makes sense in your set of commands and for some which you don't want aliases. Example:
-
-```
-$ kubectl remove
-Error: unknown command "remove" for "kubectl"
-
-Did you mean this?
-        delete
-
-Run 'kubectl help' for usage.
-```
-
-## Generating documentation for your command
-
-Cobra can generate documentation based on subcommands, flags, etc. in the following formats:
-
-- [Markdown](doc/md_docs.md)
-- [ReStructured Text](doc/rest_docs.md)
-- [Man Page](doc/man_docs.md)
-
-## Generating bash completions
-
-Cobra can generate a bash-completion file. If you add more information to your command, these completions can be amazingly powerful and flexible.  Read more about it in [Bash Completions](bash_completions.md).
-
-## Generating zsh completions
-
-Cobra can generate zsh-completion file. Read more about it in
-[Zsh Completions](zsh_completions.md).
-
-# Contributing
-
-1. Fork it
-2. Download your fork to your PC (`git clone https://github.com/your_username/cobra && cd cobra`)
-3. Create your feature branch (`git checkout -b my-new-feature`)
-4. Make changes and add them (`git add .`)
-5. Commit your changes (`git commit -m 'Add some feature'`)
-6. Push to the branch (`git push origin my-new-feature`)
-7. Create new pull request
 
 # License
 

vendor/github.com/spf13/cobra/active_help.go

@@ -0,0 +1,63 @@
+// Copyright 2013-2022 The Cobra 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 cobra
+
+import (
+	"fmt"
+	"os"
+	"strings"
+)
+
+const (
+	activeHelpMarker = "_activeHelp_ "
+	// The below values should not be changed: programs will be using them explicitly
+	// in their user documentation, and users will be using them explicitly.
+	activeHelpEnvVarSuffix  = "_ACTIVE_HELP"
+	activeHelpGlobalEnvVar  = "COBRA_ACTIVE_HELP"
+	activeHelpGlobalDisable = "0"
+)
+
+// AppendActiveHelp adds the specified string to the specified array to be used as ActiveHelp.
+// Such strings will be processed by the completion script and will be shown as ActiveHelp
+// to the user.
+// The array parameter should be the array that will contain the completions.
+// This function can be called multiple times before and/or after completions are added to
+// the array.  Each time this function is called with the same array, the new
+// ActiveHelp line will be shown below the previous ones when completion is triggered.
+func AppendActiveHelp(compArray []string, activeHelpStr string) []string {
+	return append(compArray, fmt.Sprintf("%s%s", activeHelpMarker, activeHelpStr))
+}
+
+// GetActiveHelpConfig returns the value of the ActiveHelp environment variable
+// <PROGRAM>_ACTIVE_HELP where <PROGRAM> is the name of the root command in upper
+// case, with all - replaced by _.
+// It will always return "0" if the global environment variable COBRA_ACTIVE_HELP
+// is set to "0".
+func GetActiveHelpConfig(cmd *Command) string {
+	activeHelpCfg := os.Getenv(activeHelpGlobalEnvVar)
+	if activeHelpCfg != activeHelpGlobalDisable {
+		activeHelpCfg = os.Getenv(activeHelpEnvVar(cmd.Root().Name()))
+	}
+	return activeHelpCfg
+}
+
+// activeHelpEnvVar returns the name of the program-specific ActiveHelp environment
+// variable.  It has the format <PROGRAM>_ACTIVE_HELP where <PROGRAM> is the name of the
+// root command in upper case, with all - replaced by _.
+func activeHelpEnvVar(name string) string {
+	// This format should not be changed: users will be using it explicitly.
+	activeHelpEnvVar := strings.ToUpper(fmt.Sprintf("%s%s", name, activeHelpEnvVarSuffix))
+	return strings.ReplaceAll(activeHelpEnvVar, "-", "_")
+}

vendor/github.com/spf13/cobra/active_help.md

@@ -0,0 +1,157 @@
+# Active Help
+
+Active Help is a framework provided by Cobra which allows a program to define messages (hints, warnings, etc) that will be printed during program usage.  It aims to make it easier for your users to learn how to use your program.  If configured by the program, Active Help is printed when the user triggers shell completion.
+
+For example, 
+```
+bash-5.1$ helm repo add [tab]
+You must choose a name for the repo you are adding.
+
+bash-5.1$ bin/helm package [tab]
+Please specify the path to the chart to package
+
+bash-5.1$ bin/helm package [tab][tab]
+bin/    internal/    scripts/    pkg/     testdata/
+```
+
+**Hint**: A good place to use Active Help messages is when the normal completion system does not provide any suggestions. In such cases, Active Help nicely supplements the normal shell completions to guide the user in knowing what is expected by the program.
+## Supported shells
+
+Active Help is currently only supported for the following shells:
+- Bash (using [bash completion V2](shell_completions.md#bash-completion-v2) only). Note that bash 4.4 or higher is required for the prompt to appear when an Active Help message is printed.
+- Zsh
+
+## Adding Active Help messages
+
+As Active Help uses the shell completion system, the implementation of Active Help messages is done by enhancing custom dynamic completions.  If you are not familiar with dynamic completions, please refer to [Shell Completions](shell_completions.md).
+
+Adding Active Help is done through the use of the `cobra.AppendActiveHelp(...)` function, where the program repeatedly adds Active Help messages to the list of completions.  Keep reading for details.
+
+### Active Help for nouns
+
+Adding Active Help when completing a noun is done within the `ValidArgsFunction(...)` of a command.  Please notice the use of `cobra.AppendActiveHelp(...)` in the following example:
+
+```go
+cmd := &cobra.Command{
+	Use:   "add [NAME] [URL]",
+	Short: "add a chart repository",
+	Args:  require.ExactArgs(2),
+	RunE: func(cmd *cobra.Command, args []string) error {
+		return addRepo(args)
+	},
+	ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		var comps []string
+		if len(args) == 0 {
+			comps = cobra.AppendActiveHelp(comps, "You must choose a name for the repo you are adding")
+		} else if len(args) == 1 {
+			comps = cobra.AppendActiveHelp(comps, "You must specify the URL for the repo you are adding")
+		} else {
+			comps = cobra.AppendActiveHelp(comps, "This command does not take any more arguments")
+		}
+		return comps, cobra.ShellCompDirectiveNoFileComp
+	},
+}
+```
+The example above defines the completions (none, in this specific example) as well as the Active Help messages for the `helm repo add` command.  It yields the following behavior:
+```
+bash-5.1$ helm repo add [tab]
+You must choose a name for the repo you are adding
+
+bash-5.1$ helm repo add grafana [tab]
+You must specify the URL for the repo you are adding
+
+bash-5.1$ helm repo add grafana https://grafana.github.io/helm-charts [tab]
+This command does not take any more arguments
+```
+**Hint**: As can be seen in the above example, a good place to use Active Help messages is when the normal completion system does not provide any suggestions. In such cases, Active Help nicely supplements the normal shell completions.
+
+### Active Help for flags
+
+Providing Active Help for flags is done in the same fashion as for nouns, but using the completion function registered for the flag.  For example:
+```go
+_ = cmd.RegisterFlagCompletionFunc("version", func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		if len(args) != 2 {
+			return cobra.AppendActiveHelp(nil, "You must first specify the chart to install before the --version flag can be completed"), cobra.ShellCompDirectiveNoFileComp
+		}
+		return compVersionFlag(args[1], toComplete)
+	})
+```
+The example above prints an Active Help message when not enough information was given by the user to complete the `--version` flag.
+```
+bash-5.1$ bin/helm install myrelease --version 2.0.[tab]
+You must first specify the chart to install before the --version flag can be completed
+
+bash-5.1$ bin/helm install myrelease bitnami/solr --version 2.0.[tab][tab]
+2.0.1  2.0.2  2.0.3
+```
+
+## User control of Active Help
+
+You may want to allow your users to disable Active Help or choose between different levels of Active Help.  It is entirely up to the program to define the type of configurability of Active Help that it wants to offer, if any.
+Allowing to configure Active Help is entirely optional; you can use Active Help in your program without doing anything about Active Help configuration.
+
+The way to configure Active Help is to use the program's Active Help environment
+variable.  That variable is named `<PROGRAM>_ACTIVE_HELP` where `<PROGRAM>` is the name of your 
+program in uppercase with any `-` replaced by an `_`.  The variable should be set by the user to whatever
+Active Help configuration values are supported by the program.
+
+For example, say `helm` has chosen to support three levels for Active Help: `on`, `off`, `local`.  Then a user
+would set the desired behavior to `local` by doing `export HELM_ACTIVE_HELP=local` in their shell.
+
+For simplicity, when in `cmd.ValidArgsFunction(...)` or a flag's completion function, the program should read the
+Active Help configuration using the `cobra.GetActiveHelpConfig(cmd)` function and select what Active Help messages
+should or should not be added (instead of reading the environment variable directly).
+
+For example:
+```go
+ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+	activeHelpLevel := cobra.GetActiveHelpConfig(cmd)
+
+	var comps []string
+	if len(args) == 0 {
+		if activeHelpLevel != "off"  {
+			comps = cobra.AppendActiveHelp(comps, "You must choose a name for the repo you are adding")
+		}
+	} else if len(args) == 1 {
+		if activeHelpLevel != "off" {
+			comps = cobra.AppendActiveHelp(comps, "You must specify the URL for the repo you are adding")
+		}
+	} else {
+		if activeHelpLevel == "local" {
+			comps = cobra.AppendActiveHelp(comps, "This command does not take any more arguments")
+		}
+	}
+	return comps, cobra.ShellCompDirectiveNoFileComp
+},
+```
+**Note 1**: If the `<PROGRAM>_ACTIVE_HELP` environment variable is set to the string "0", Cobra will automatically disable all Active Help output (even if some output was specified by the program using the `cobra.AppendActiveHelp(...)` function).  Using "0" can simplify your code in situations where you want to blindly disable Active Help without having to call `cobra.GetActiveHelpConfig(cmd)` explicitly.
+
+**Note 2**: If a user wants to disable Active Help for every single program based on Cobra, she can set the environment variable `COBRA_ACTIVE_HELP` to "0".  In this case `cobra.GetActiveHelpConfig(cmd)` will return "0" no matter what the variable `<PROGRAM>_ACTIVE_HELP` is set to.
+
+**Note 3**: If the user does not set `<PROGRAM>_ACTIVE_HELP` or `COBRA_ACTIVE_HELP` (which will be a common case), the default value for the Active Help configuration returned by `cobra.GetActiveHelpConfig(cmd)` will be the empty string. 
+## Active Help with Cobra's default completion command
+
+Cobra provides a default `completion` command for programs that wish to use it.
+When using the default `completion` command, Active Help is configurable in the same
+fashion as described above using environment variables.  You may wish to document this in more
+details for your users.
+
+## Debugging Active Help
+
+Debugging your Active Help code is done in the same way as debugging your dynamic completion code, which is with Cobra's hidden `__complete` command.  Please refer to [debugging shell completion](shell_completions.md#debugging) for details.
+
+When debugging with the `__complete` command, if you want to specify different Active Help configurations, you should use the active help environment variable.  That variable is named `<PROGRAM>_ACTIVE_HELP` where any `-` is replaced by an `_`.  For example, we can test deactivating some Active Help as shown below:
+```
+$ HELM_ACTIVE_HELP=1 bin/helm __complete install wordpress bitnami/h<ENTER>
+bitnami/haproxy
+bitnami/harbor
+_activeHelp_ WARNING: cannot re-use a name that is still in use
+:0
+Completion ended with directive: ShellCompDirectiveDefault
+
+$ HELM_ACTIVE_HELP=0 bin/helm __complete install wordpress bitnami/h<ENTER>
+bitnami/haproxy
+bitnami/harbor
+:0
+Completion ended with directive: ShellCompDirectiveDefault
+```

vendor/github.com/spf13/cobra/args.go

@@ -1,3 +1,17 @@
+// Copyright 2013-2022 The Cobra 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 cobra
 
 import (
@@ -32,7 +46,8 @@ func NoArgs(cmd *Command, args []string) error {
 	return nil
 }
 
-// OnlyValidArgs returns an error if any args are not in the list of ValidArgs.
+// OnlyValidArgs returns an error if there are any positional args that are not in
+// the `ValidArgs` field of `Command`
 func OnlyValidArgs(cmd *Command, args []string) error {
 	if len(cmd.ValidArgs) > 0 {
 		// Remove any description that may be included in ValidArgs.
@@ -41,7 +56,6 @@ func OnlyValidArgs(cmd *Command, args []string) error {
 		for _, v := range cmd.ValidArgs {
 			validArgs = append(validArgs, strings.Split(v, "\t")[0])
 		}
-
 		for _, v := range args {
 			if !stringInSlice(v, validArgs) {
 				return fmt.Errorf("invalid argument %q for %q%s", v, cmd.CommandPath(), cmd.findSuggestions(args[0]))
@@ -86,18 +100,6 @@ func ExactArgs(n int) PositionalArgs {
 	}
 }
 
-// ExactValidArgs returns an error if
-// there are not exactly N positional args OR
-// there are any positional args that are not in the `ValidArgs` field of `Command`
-func ExactValidArgs(n int) PositionalArgs {
-	return func(cmd *Command, args []string) error {
-		if err := ExactArgs(n)(cmd, args); err != nil {
-			return err
-		}
-		return OnlyValidArgs(cmd, args)
-	}
-}
-
 // RangeArgs returns an error if the number of args is not within the expected range.
 func RangeArgs(min int, max int) PositionalArgs {
 	return func(cmd *Command, args []string) error {
@@ -107,3 +109,23 @@ func RangeArgs(min int, max int) PositionalArgs {
 		return nil
 	}
 }
+
+// MatchAll allows combining several PositionalArgs to work in concert.
+func MatchAll(pargs ...PositionalArgs) PositionalArgs {
+	return func(cmd *Command, args []string) error {
+		for _, parg := range pargs {
+			if err := parg(cmd, args); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+}
+
+// ExactValidArgs returns an error if there are not exactly N positional args OR
+// there are any positional args that are not in the `ValidArgs` field of `Command`
+//
+// Deprecated: use MatchAll(ExactArgs(n), OnlyValidArgs) instead
+func ExactValidArgs(n int) PositionalArgs {
+	return MatchAll(ExactArgs(n), OnlyValidArgs)
+}

vendor/github.com/spf13/cobra/bash_completions.go

@@ -1,3 +1,17 @@
+// Copyright 2013-2022 The Cobra 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 cobra
 
 import (
@@ -19,12 +33,12 @@ const (
 	BashCompSubdirsInDir    = "cobra_annotation_bash_completion_subdirs_in_dir"
 )
 
-func writePreamble(buf *bytes.Buffer, name string) {
+func writePreamble(buf io.StringWriter, name string) {
-	buf.WriteString(fmt.Sprintf("# bash completion for %-36s -*- shell-script -*-\n", name))
+	WriteStringAndCheck(buf, fmt.Sprintf("# bash completion for %-36s -*- shell-script -*-\n", name))
-	buf.WriteString(fmt.Sprintf(`
+	WriteStringAndCheck(buf, fmt.Sprintf(`
 __%[1]s_debug()
 {
-    if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then
+    if [[ -n ${BASH_COMP_DEBUG_FILE:-} ]]; then
         echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
     fi
 }
@@ -62,12 +76,19 @@ __%[1]s_handle_go_custom_completion()
 {
     __%[1]s_debug "${FUNCNAME[0]}: cur is ${cur}, words[*] is ${words[*]}, #words[@] is ${#words[@]}"
 
+    local shellCompDirectiveError=%[3]d
+    local shellCompDirectiveNoSpace=%[4]d
+    local shellCompDirectiveNoFileComp=%[5]d
+    local shellCompDirectiveFilterFileExt=%[6]d
+    local shellCompDirectiveFilterDirs=%[7]d
+
     local out requestComp lastParam lastChar comp directive args
 
     # Prepare the command to request completions for the program.
     # Calling ${words[0]} instead of directly %[1]s allows to handle aliases
     args=("${words[@]:1}")
-    requestComp="${words[0]} %[2]s ${args[*]}"
+    # Disable ActiveHelp which is not supported for bash completion v1
+    requestComp="%[8]s=0 ${words[0]} %[2]s ${args[*]}"
 
     lastParam=${words[$((${#words[@]}-1))]}
     lastChar=${lastParam:$((${#lastParam}-1)):1}
@@ -93,29 +114,55 @@ __%[1]s_handle_go_custom_completion()
         directive=0
     fi
     __%[1]s_debug "${FUNCNAME[0]}: the completion directive is: ${directive}"
-    __%[1]s_debug "${FUNCNAME[0]}: the completions are: ${out[*]}"
+    __%[1]s_debug "${FUNCNAME[0]}: the completions are: ${out}"
 
-    if [ $((directive & %[3]d)) -ne 0 ]; then
+    if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then
         # Error code.  No completion.
         __%[1]s_debug "${FUNCNAME[0]}: received error from custom completion go code"
         return
     else
-        if [ $((directive & %[4]d)) -ne 0 ]; then
+        if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then
             if [[ $(type -t compopt) = "builtin" ]]; then
                 __%[1]s_debug "${FUNCNAME[0]}: activating no space"
                 compopt -o nospace
             fi
         fi
-        if [ $((directive & %[5]d)) -ne 0 ]; then
+        if [ $((directive & shellCompDirectiveNoFileComp)) -ne 0 ]; then
             if [[ $(type -t compopt) = "builtin" ]]; then
                 __%[1]s_debug "${FUNCNAME[0]}: activating no file completion"
                 compopt +o default
             fi
         fi
+    fi
 
+    if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then
+        # File extension filtering
+        local fullFilter filter filteringCmd
+        # Do not use quotes around the $out variable or else newline
+        # characters will be kept.
+        for filter in ${out}; do
+            fullFilter+="$filter|"
+        done
+
+        filteringCmd="_filedir $fullFilter"
+        __%[1]s_debug "File filtering command: $filteringCmd"
+        $filteringCmd
+    elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then
+        # File completion for directories only
+        local subdir
+        # Use printf to strip any trailing newline
+        subdir=$(printf "%%s" "${out}")
+        if [ -n "$subdir" ]; then
+            __%[1]s_debug "Listing directories in $subdir"
+            __%[1]s_handle_subdirs_in_dir_flag "$subdir"
+        else
+            __%[1]s_debug "Listing directories in ."
+            _filedir -d
+        fi
+    else
         while IFS='' read -r comp; do
             COMPREPLY+=("$comp")
-        done < <(compgen -W "${out[*]}" -- "$cur")
+        done < <(compgen -W "${out}" -- "$cur")
     fi
 }
 
@@ -155,13 +202,19 @@ __%[1]s_handle_reply()
                     PREFIX=""
                     cur="${cur#*=}"
                     ${flags_completion[${index}]}
-                    if [ -n "${ZSH_VERSION}" ]; then
+                    if [ -n "${ZSH_VERSION:-}" ]; then
                         # zsh completion needs --flag= prefix
                         eval "COMPREPLY=( \"\${COMPREPLY[@]/#/${flag}=}\" )"
                     fi
                 fi
             fi
-            return 0;
+
+            if [[ -z "${flag_parsing_disabled}" ]]; then
+                # If flag parsing is enabled, we have completed the flags and can return.
+                # If flag parsing is disabled, we may not know all (or any) of the flags, so we fallthrough
+                # to possibly call handle_go_custom_completion.
+                return 0;
+            fi
             ;;
     esac
 
@@ -181,10 +234,9 @@ __%[1]s_handle_reply()
     local completions
     completions=("${commands[@]}")
     if [[ ${#must_have_one_noun[@]} -ne 0 ]]; then
-        completions=("${must_have_one_noun[@]}")
+        completions+=("${must_have_one_noun[@]}")
     elif [[ -n "${has_completion_function}" ]]; then
         # if a go completion function is provided, defer to that function
-        completions=()
         __%[1]s_handle_go_custom_completion
     fi
     if [[ ${#must_have_one_flag[@]} -ne 0 ]]; then
@@ -201,13 +253,13 @@ __%[1]s_handle_reply()
     fi
 
     if [[ ${#COMPREPLY[@]} -eq 0 ]]; then
-		if declare -F __%[1]s_custom_func >/dev/null; then
+        if declare -F __%[1]s_custom_func >/dev/null; then
-			# try command name qualified custom func
+            # try command name qualified custom func
-			__%[1]s_custom_func
+            __%[1]s_custom_func
-		else
+        else
-			# otherwise fall back to unqualified for compatibility
+            # otherwise fall back to unqualified for compatibility
-			declare -F __custom_func >/dev/null && __custom_func
+            declare -F __custom_func >/dev/null && __custom_func
-		fi
+        fi
     fi
 
     # available in bash-completion >= 2, not always present on macOS
@@ -241,7 +293,7 @@ __%[1]s_handle_flag()
 
     # if a command required a flag, and we found it, unset must_have_one_flag()
     local flagname=${words[c]}
-    local flagvalue
+    local flagvalue=""
     # if the word contained an =
     if [[ ${words[c]} == *"="* ]]; then
         flagvalue=${flagname#*=} # take in as flagvalue after the =
@@ -260,7 +312,7 @@ __%[1]s_handle_flag()
 
     # keep flag value with flagname as flaghash
     # flaghash variable is an associative array which is only supported in bash > 3.
-    if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then
+    if [[ -z "${BASH_VERSION:-}" || "${BASH_VERSINFO[0]:-}" -gt 3 ]]; then
         if [ -n "${flagvalue}" ] ; then
             flaghash[${flagname}]=${flagvalue}
         elif [ -n "${words[ $((c+1)) ]}" ] ; then
@@ -272,7 +324,7 @@ __%[1]s_handle_flag()
 
     # skip the argument to a two word flag
     if [[ ${words[c]} != *"="* ]] && __%[1]s_contains_word "${words[c]}" "${two_word_flags[@]}"; then
-			  __%[1]s_debug "${FUNCNAME[0]}: found a flag ${words[c]}, skip the next argument"
+        __%[1]s_debug "${FUNCNAME[0]}: found a flag ${words[c]}, skip the next argument"
         c=$((c+1))
         # if we are looking for a flags value, don't show commands
         if [[ $c -eq $cword ]]; then
@@ -332,7 +384,7 @@ __%[1]s_handle_word()
         __%[1]s_handle_command
     elif __%[1]s_contains_word "${words[c]}" "${command_aliases[@]}"; then
         # aliashash variable is an associative array which is only supported in bash > 3.
-        if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then
+        if [[ -z "${BASH_VERSION:-}" || "${BASH_VERSINFO[0]:-}" -gt 3 ]]; then
             words[c]=${aliashash[${words[c]}]}
             __%[1]s_handle_command
         else
@@ -344,14 +396,16 @@ __%[1]s_handle_word()
     __%[1]s_handle_word
 }
 
-`, name, ShellCompNoDescRequestCmd, ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp))
+`, name, ShellCompNoDescRequestCmd,
+		ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
+		ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, activeHelpEnvVar(name)))
 }
 
-func writePostscript(buf *bytes.Buffer, name string) {
+func writePostscript(buf io.StringWriter, name string) {
-	name = strings.Replace(name, ":", "__", -1)
+	name = strings.ReplaceAll(name, ":", "__")
-	buf.WriteString(fmt.Sprintf("__start_%s()\n", name))
+	WriteStringAndCheck(buf, fmt.Sprintf("__start_%s()\n", name))
-	buf.WriteString(fmt.Sprintf(`{
+	WriteStringAndCheck(buf, fmt.Sprintf(`{
-    local cur prev words cword
+    local cur prev words cword split
     declare -A flaghash 2>/dev/null || :
     declare -A aliashash 2>/dev/null || :
     if declare -F _init_completion >/dev/null 2>&1; then
@@ -361,49 +415,52 @@ func writePostscript(buf *bytes.Buffer, name string) {
     fi
 
     local c=0
+    local flag_parsing_disabled=
     local flags=()
     local two_word_flags=()
     local local_nonpersistent_flags=()
     local flags_with_completion=()
     local flags_completion=()
     local commands=("%[1]s")
+    local command_aliases=()
     local must_have_one_flag=()
     local must_have_one_noun=()
-    local has_completion_function
+    local has_completion_function=""
-    local last_command
+    local last_command=""
     local nouns=()
+    local noun_aliases=()
 
     __%[1]s_handle_word
 }
 
 `, name))
-	buf.WriteString(fmt.Sprintf(`if [[ $(type -t compopt) = "builtin" ]]; then
+	WriteStringAndCheck(buf, fmt.Sprintf(`if [[ $(type -t compopt) = "builtin" ]]; then
     complete -o default -F __start_%s %s
 else
     complete -o default -o nospace -F __start_%s %s
 fi
 
 `, name, name, name, name))
-	buf.WriteString("# ex: ts=4 sw=4 et filetype=sh\n")
+	WriteStringAndCheck(buf, "# ex: ts=4 sw=4 et filetype=sh\n")
 }
 
-func writeCommands(buf *bytes.Buffer, cmd *Command) {
+func writeCommands(buf io.StringWriter, cmd *Command) {
-	buf.WriteString("    commands=()\n")
+	WriteStringAndCheck(buf, "    commands=()\n")
 	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c == cmd.helpCommand {
+		if !c.IsAvailableCommand() && c != cmd.helpCommand {
 			continue
 		}
-		buf.WriteString(fmt.Sprintf("    commands+=(%q)\n", c.Name()))
+		WriteStringAndCheck(buf, fmt.Sprintf("    commands+=(%q)\n", c.Name()))
 		writeCmdAliases(buf, c)
 	}
-	buf.WriteString("\n")
+	WriteStringAndCheck(buf, "\n")
 }
 
-func writeFlagHandler(buf *bytes.Buffer, name string, annotations map[string][]string, cmd *Command) {
+func writeFlagHandler(buf io.StringWriter, name string, annotations map[string][]string, cmd *Command) {
 	for key, value := range annotations {
 		switch key {
 		case BashCompFilenameExt:
-			buf.WriteString(fmt.Sprintf("    flags_with_completion+=(%q)\n", name))
+			WriteStringAndCheck(buf, fmt.Sprintf("    flags_with_completion+=(%q)\n", name))
 
 			var ext string
 			if len(value) > 0 {
@@ -411,17 +468,18 @@ func writeFlagHandler(buf *bytes.Buffer, name string, annotations map[string][]s
 			} else {
 				ext = "_filedir"
 			}
-			buf.WriteString(fmt.Sprintf("    flags_completion+=(%q)\n", ext))
+			WriteStringAndCheck(buf, fmt.Sprintf("    flags_completion+=(%q)\n", ext))
 		case BashCompCustom:
-			buf.WriteString(fmt.Sprintf("    flags_with_completion+=(%q)\n", name))
+			WriteStringAndCheck(buf, fmt.Sprintf("    flags_with_completion+=(%q)\n", name))
+
 			if len(value) > 0 {
 				handlers := strings.Join(value, "; ")
-				buf.WriteString(fmt.Sprintf("    flags_completion+=(%q)\n", handlers))
+				WriteStringAndCheck(buf, fmt.Sprintf("    flags_completion+=(%q)\n", handlers))
 			} else {
-				buf.WriteString("    flags_completion+=(:)\n")
+				WriteStringAndCheck(buf, "    flags_completion+=(:)\n")
 			}
 		case BashCompSubdirsInDir:
-			buf.WriteString(fmt.Sprintf("    flags_with_completion+=(%q)\n", name))
+			WriteStringAndCheck(buf, fmt.Sprintf("    flags_with_completion+=(%q)\n", name))
 
 			var ext string
 			if len(value) == 1 {
@@ -429,49 +487,55 @@ func writeFlagHandler(buf *bytes.Buffer, name string, annotations map[string][]s
 			} else {
 				ext = "_filedir -d"
 			}
-			buf.WriteString(fmt.Sprintf("    flags_completion+=(%q)\n", ext))
+			WriteStringAndCheck(buf, fmt.Sprintf("    flags_completion+=(%q)\n", ext))
 		}
 	}
 }
 
-func writeShortFlag(buf *bytes.Buffer, flag *pflag.Flag, cmd *Command) {
+const cbn = "\")\n"
+
+func writeShortFlag(buf io.StringWriter, flag *pflag.Flag, cmd *Command) {
 	name := flag.Shorthand
 	format := "    "
 	if len(flag.NoOptDefVal) == 0 {
 		format += "two_word_"
 	}
-	format += "flags+=(\"-%s\")\n"
+	format += "flags+=(\"-%s" + cbn
-	buf.WriteString(fmt.Sprintf(format, name))
+	WriteStringAndCheck(buf, fmt.Sprintf(format, name))
 	writeFlagHandler(buf, "-"+name, flag.Annotations, cmd)
 }
 
-func writeFlag(buf *bytes.Buffer, flag *pflag.Flag, cmd *Command) {
+func writeFlag(buf io.StringWriter, flag *pflag.Flag, cmd *Command) {
 	name := flag.Name
 	format := "    flags+=(\"--%s"
 	if len(flag.NoOptDefVal) == 0 {
 		format += "="
 	}
-	format += "\")\n"
+	format += cbn
-	buf.WriteString(fmt.Sprintf(format, name))
+	WriteStringAndCheck(buf, fmt.Sprintf(format, name))
 	if len(flag.NoOptDefVal) == 0 {
-		format = "    two_word_flags+=(\"--%s\")\n"
+		format = "    two_word_flags+=(\"--%s" + cbn
-		buf.WriteString(fmt.Sprintf(format, name))
+		WriteStringAndCheck(buf, fmt.Sprintf(format, name))
 	}
 	writeFlagHandler(buf, "--"+name, flag.Annotations, cmd)
 }
 
-func writeLocalNonPersistentFlag(buf *bytes.Buffer, flag *pflag.Flag) {
+func writeLocalNonPersistentFlag(buf io.StringWriter, flag *pflag.Flag) {
 	name := flag.Name
-	format := "    local_nonpersistent_flags+=(\"--%s"
+	format := "    local_nonpersistent_flags+=(\"--%[1]s" + cbn
 	if len(flag.NoOptDefVal) == 0 {
-		format += "="
+		format += "    local_nonpersistent_flags+=(\"--%[1]s=" + cbn
+	}
+	WriteStringAndCheck(buf, fmt.Sprintf(format, name))
+	if len(flag.Shorthand) > 0 {
+		WriteStringAndCheck(buf, fmt.Sprintf("    local_nonpersistent_flags+=(\"-%s\")\n", flag.Shorthand))
 	}
-	format += "\")\n"
-	buf.WriteString(fmt.Sprintf(format, name))
 }
 
 // Setup annotations for go completions for registered flags
 func prepareCustomAnnotationsForFlags(cmd *Command) {
+	flagCompletionMutex.RLock()
+	defer flagCompletionMutex.RUnlock()
 	for flag := range flagCompletionFunctions {
 		// Make sure the completion script calls the __*_go_custom_completion function for
 		// every registered flag.  We need to do this here (and not when the flag was registered
@@ -484,15 +548,20 @@ func prepareCustomAnnotationsForFlags(cmd *Command) {
 	}
 }
 
-func writeFlags(buf *bytes.Buffer, cmd *Command) {
+func writeFlags(buf io.StringWriter, cmd *Command) {
 	prepareCustomAnnotationsForFlags(cmd)
-	buf.WriteString(`    flags=()
+	WriteStringAndCheck(buf, `    flags=()
     two_word_flags=()
     local_nonpersistent_flags=()
     flags_with_completion=()
     flags_completion=()
 
 `)
+
+	if cmd.DisableFlagParsing {
+		WriteStringAndCheck(buf, "    flag_parsing_disabled=1\n")
+	}
+
 	localNonPersistentFlags := cmd.LocalNonPersistentFlags()
 	cmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
 		if nonCompletableFlag(flag) {
@@ -502,7 +571,9 @@ func writeFlags(buf *bytes.Buffer, cmd *Command) {
 		if len(flag.Shorthand) > 0 {
 			writeShortFlag(buf, flag, cmd)
 		}
-		if localNonPersistentFlags.Lookup(flag.Name) != nil {
+		// localNonPersistentFlags are used to stop the completion of subcommands when one is set
+		// if TraverseChildren is true we should allow to complete subcommands
+		if localNonPersistentFlags.Lookup(flag.Name) != nil && !cmd.Root().TraverseChildren {
 			writeLocalNonPersistentFlag(buf, flag)
 		}
 	})
@@ -516,11 +587,11 @@ func writeFlags(buf *bytes.Buffer, cmd *Command) {
 		}
 	})
 
-	buf.WriteString("\n")
+	WriteStringAndCheck(buf, "\n")
 }
 
-func writeRequiredFlag(buf *bytes.Buffer, cmd *Command) {
+func writeRequiredFlag(buf io.StringWriter, cmd *Command) {
-	buf.WriteString("    must_have_one_flag=()\n")
+	WriteStringAndCheck(buf, "    must_have_one_flag=()\n")
 	flags := cmd.NonInheritedFlags()
 	flags.VisitAll(func(flag *pflag.Flag) {
 		if nonCompletableFlag(flag) {
@@ -533,82 +604,82 @@ func writeRequiredFlag(buf *bytes.Buffer, cmd *Command) {
 				if flag.Value.Type() != "bool" {
 					format += "="
 				}
-				format += "\")\n"
+				format += cbn
-				buf.WriteString(fmt.Sprintf(format, flag.Name))
+				WriteStringAndCheck(buf, fmt.Sprintf(format, flag.Name))
 
 				if len(flag.Shorthand) > 0 {
-					buf.WriteString(fmt.Sprintf("    must_have_one_flag+=(\"-%s\")\n", flag.Shorthand))
+					WriteStringAndCheck(buf, fmt.Sprintf("    must_have_one_flag+=(\"-%s"+cbn, flag.Shorthand))
 				}
 			}
 		}
 	})
 }
 
-func writeRequiredNouns(buf *bytes.Buffer, cmd *Command) {
+func writeRequiredNouns(buf io.StringWriter, cmd *Command) {
-	buf.WriteString("    must_have_one_noun=()\n")
+	WriteStringAndCheck(buf, "    must_have_one_noun=()\n")
-	sort.Sort(sort.StringSlice(cmd.ValidArgs))
+	sort.Strings(cmd.ValidArgs)
 	for _, value := range cmd.ValidArgs {
 		// Remove any description that may be included following a tab character.
 		// Descriptions are not supported by bash completion.
 		value = strings.Split(value, "\t")[0]
-		buf.WriteString(fmt.Sprintf("    must_have_one_noun+=(%q)\n", value))
+		WriteStringAndCheck(buf, fmt.Sprintf("    must_have_one_noun+=(%q)\n", value))
 	}
 	if cmd.ValidArgsFunction != nil {
-		buf.WriteString("    has_completion_function=1\n")
+		WriteStringAndCheck(buf, "    has_completion_function=1\n")
 	}
 }
 
-func writeCmdAliases(buf *bytes.Buffer, cmd *Command) {
+func writeCmdAliases(buf io.StringWriter, cmd *Command) {
 	if len(cmd.Aliases) == 0 {
 		return
 	}
 
-	sort.Sort(sort.StringSlice(cmd.Aliases))
+	sort.Strings(cmd.Aliases)
 
-	buf.WriteString(fmt.Sprint(`    if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then`, "\n"))
+	WriteStringAndCheck(buf, fmt.Sprint(`    if [[ -z "${BASH_VERSION:-}" || "${BASH_VERSINFO[0]:-}" -gt 3 ]]; then`, "\n"))
 	for _, value := range cmd.Aliases {
-		buf.WriteString(fmt.Sprintf("        command_aliases+=(%q)\n", value))
+		WriteStringAndCheck(buf, fmt.Sprintf("        command_aliases+=(%q)\n", value))
-		buf.WriteString(fmt.Sprintf("        aliashash[%q]=%q\n", value, cmd.Name()))
+		WriteStringAndCheck(buf, fmt.Sprintf("        aliashash[%q]=%q\n", value, cmd.Name()))
 	}
-	buf.WriteString(`    fi`)
+	WriteStringAndCheck(buf, `    fi`)
-	buf.WriteString("\n")
+	WriteStringAndCheck(buf, "\n")
 }
-func writeArgAliases(buf *bytes.Buffer, cmd *Command) {
+func writeArgAliases(buf io.StringWriter, cmd *Command) {
-	buf.WriteString("    noun_aliases=()\n")
+	WriteStringAndCheck(buf, "    noun_aliases=()\n")
-	sort.Sort(sort.StringSlice(cmd.ArgAliases))
+	sort.Strings(cmd.ArgAliases)
 	for _, value := range cmd.ArgAliases {
-		buf.WriteString(fmt.Sprintf("    noun_aliases+=(%q)\n", value))
+		WriteStringAndCheck(buf, fmt.Sprintf("    noun_aliases+=(%q)\n", value))
 	}
 }
 
-func gen(buf *bytes.Buffer, cmd *Command) {
+func gen(buf io.StringWriter, cmd *Command) {
 	for _, c := range cmd.Commands() {
-		if !c.IsAvailableCommand() || c == cmd.helpCommand {
+		if !c.IsAvailableCommand() && c != cmd.helpCommand {
 			continue
 		}
 		gen(buf, c)
 	}
 	commandName := cmd.CommandPath()
-	commandName = strings.Replace(commandName, " ", "_", -1)
+	commandName = strings.ReplaceAll(commandName, " ", "_")
-	commandName = strings.Replace(commandName, ":", "__", -1)
+	commandName = strings.ReplaceAll(commandName, ":", "__")
 
 	if cmd.Root() == cmd {
-		buf.WriteString(fmt.Sprintf("_%s_root_command()\n{\n", commandName))
+		WriteStringAndCheck(buf, fmt.Sprintf("_%s_root_command()\n{\n", commandName))
 	} else {
-		buf.WriteString(fmt.Sprintf("_%s()\n{\n", commandName))
+		WriteStringAndCheck(buf, fmt.Sprintf("_%s()\n{\n", commandName))
 	}
 
-	buf.WriteString(fmt.Sprintf("    last_command=%q\n", commandName))
+	WriteStringAndCheck(buf, fmt.Sprintf("    last_command=%q\n", commandName))
-	buf.WriteString("\n")
+	WriteStringAndCheck(buf, "\n")
-	buf.WriteString("    command_aliases=()\n")
+	WriteStringAndCheck(buf, "    command_aliases=()\n")
-	buf.WriteString("\n")
+	WriteStringAndCheck(buf, "\n")
 
 	writeCommands(buf, cmd)
 	writeFlags(buf, cmd)
 	writeRequiredFlag(buf, cmd)
 	writeRequiredNouns(buf, cmd)
 	writeArgAliases(buf, cmd)
-	buf.WriteString("}\n\n")
+	WriteStringAndCheck(buf, "}\n\n")
 }
 
 // GenBashCompletion generates bash completion file and writes to the passed writer.

vendor/github.com/spf13/cobra/bash_completions.md

@@ -1,206 +1,16 @@
-# Generating Bash Completions For Your Own cobra.Command
+# Generating Bash Completions For Your cobra.Command
 
-If you are using the generator you can create a completion command by running
+Please refer to [Shell Completions](shell_completions.md) for details.
 
-```bash
+## Bash legacy dynamic completions
-cobra add completion
-```
 
-Update the help text show how to install the bash_completion Linux show here [Kubectl docs show mac options](https://kubernetes.io/docs/tasks/tools/install-kubectl/#enabling-shell-autocompletion)
+For backward compatibility, Cobra still supports its legacy dynamic completion solution (described below).  Unlike the `ValidArgsFunction` solution, the legacy solution will only work for Bash shell-completion and not for other shells. This legacy solution can be used along-side `ValidArgsFunction` and `RegisterFlagCompletionFunc()`, as long as both solutions are not used for the same command.  This provides a path to gradually migrate from the legacy solution to the new solution.
 
-Writing the shell script to stdout allows the most flexible use.
+**Note**: Cobra's default `completion` command uses bash completion V2.  If you are currently using Cobra's legacy dynamic completion solution, you should not use the default `completion` command but continue using your own.
 
-```go
+The legacy solution allows you to inject bash functions into the bash completion script.  Those bash functions are responsible for providing the completion choices for your own completions.
-// completionCmd represents the completion command
-var completionCmd = &cobra.Command{
-	Use:   "completion",
-	Short: "Generates bash completion scripts",
-	Long: `To load completion run
 
-. <(bitbucket completion)
+Some code that works in kubernetes:
-
-To configure your bash shell to load completions for each session add to your bashrc
-
-# ~/.bashrc or ~/.profile
-. <(bitbucket completion)
-`,
-	Run: func(cmd *cobra.Command, args []string) {
-		rootCmd.GenBashCompletion(os.Stdout);
-	},
-}
-```
-
-**Note:** The cobra generator may include messages printed to stdout for example if the config file is loaded, this will break the auto complete script
-
-
-## Example from kubectl
-
-Generating bash completions from a cobra command is incredibly easy. An actual program which does so for the kubernetes kubectl binary is as follows:
-
-```go
-package main
-
-import (
-	"io/ioutil"
-	"os"
-
-	"k8s.io/kubernetes/pkg/kubectl/cmd"
-	"k8s.io/kubernetes/pkg/kubectl/cmd/util"
-)
-
-func main() {
-	kubectl := cmd.NewKubectlCommand(util.NewFactory(nil), os.Stdin, ioutil.Discard, ioutil.Discard)
-	kubectl.GenBashCompletionFile("out.sh")
-}
-```
-
-`out.sh` will get you completions of subcommands and flags. Copy it to `/etc/bash_completion.d/` as described [here](https://debian-administration.org/article/316/An_introduction_to_bash_completion_part_1) and reset your terminal to use autocompletion. If you make additional annotations to your code, you can get even more intelligent and flexible behavior.
-
-## Have the completions code complete your 'nouns'
-
-### Static completion of nouns
-
-This method allows you to provide a pre-defined list of completion choices for your nouns using the `validArgs` field.
-For example, if you want `kubectl get [tab][tab]` to show a list of valid "nouns" you have to set them. Simplified code from `kubectl get` looks like:
-
-```go
-validArgs []string = { "pod", "node", "service", "replicationcontroller" }
-
-cmd := &cobra.Command{
-	Use:     "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)",
-	Short:   "Display one or many resources",
-	Long:    get_long,
-	Example: get_example,
-	Run: func(cmd *cobra.Command, args []string) {
-		err := RunGet(f, out, cmd, args)
-		util.CheckErr(err)
-	},
-	ValidArgs: validArgs,
-}
-```
-
-Notice we put the "ValidArgs" on the "get" subcommand. Doing so will give results like
-
-```bash
-# kubectl get [tab][tab]
-node                 pod                    replicationcontroller  service
-```
-
-### Plural form and shortcuts for nouns
-
-If your nouns have a number of aliases, you can define them alongside `ValidArgs` using `ArgAliases`:
-
-```go
-argAliases []string = { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" }
-
-cmd := &cobra.Command{
-    ...
-	ValidArgs:  validArgs,
-	ArgAliases: argAliases
-}
-```
-
-The aliases are not shown to the user on tab completion, but they are accepted as valid nouns by
-the completion algorithm if entered manually, e.g. in:
-
-```bash
-# kubectl get rc [tab][tab]
-backend        frontend       database 
-```
-
-Note that without declaring `rc` as an alias, the completion algorithm would show the list of nouns
-in this example again instead of the replication controllers.
-
-### Dynamic completion of nouns
-
-In some cases it is not possible to provide a list of possible completions in advance.  Instead, the list of completions must be determined at execution-time.  Cobra provides two ways of defining such dynamic completion of nouns. Note that both these methods can be used along-side each other as long as they are not both used for the same command.
-
-**Note**: *Custom Completions written in Go* will automatically work for other shell-completion scripts (e.g., Fish shell), while *Custom Completions written in Bash* will only work for Bash shell-completion.  It is therefore recommended to use *Custom Completions written in Go*.
-
-#### 1. Custom completions of nouns written in Go
-
-In a similar fashion as for static completions, you can use the `ValidArgsFunction` field to provide a Go function that Cobra will execute when it needs the list of completion choices for the nouns of a command.  Note that either `ValidArgs` or `ValidArgsFunction` can be used for a single cobra command, but not both.
-Simplified code from `helm status` looks like:
-
-```go
-cmd := &cobra.Command{
-	Use:   "status RELEASE_NAME",
-	Short: "Display the status of the named release",
-	Long:  status_long,
-	RunE: func(cmd *cobra.Command, args []string) {
-		RunGet(args[0])
-	},
-	ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
-		if len(args) != 0 {
-			return nil, cobra.ShellCompDirectiveNoFileComp
-		}
-		return getReleasesFromCluster(toComplete), cobra.ShellCompDirectiveNoFileComp
-	},
-}
-```
-Where `getReleasesFromCluster()` is a Go function that obtains the list of current Helm releases running on the Kubernetes cluster.
-Notice we put the `ValidArgsFunction` on the `status` subcommand. Let's assume the Helm releases on the cluster are: `harbor`, `notary`, `rook` and `thanos` then this dynamic completion will give results like
-
-```bash
-# helm status [tab][tab]
-harbor notary rook thanos
-```
-You may have noticed the use of `cobra.ShellCompDirective`.  These directives are bit fields allowing to control some shell completion behaviors for your particular completion.  You can combine them with the bit-or operator such as `cobra.ShellCompDirectiveNoSpace | cobra.ShellCompDirectiveNoFileComp`
-```go
-// Indicates an error occurred and completions should be ignored.
-ShellCompDirectiveError
-// Indicates that the shell should not add a space after the completion,
-// even if there is a single completion provided.
-ShellCompDirectiveNoSpace
-// Indicates that the shell should not provide file completion even when
-// no completion is provided.
-// This currently does not work for zsh or bash < 4
-ShellCompDirectiveNoFileComp
-// Indicates that the shell will perform its default behavior after completions
-// have been provided (this implies !ShellCompDirectiveNoSpace && !ShellCompDirectiveNoFileComp).
-ShellCompDirectiveDefault
-```
-
-When using the `ValidArgsFunction`, Cobra will call your registered function after having parsed all flags and arguments provided in the command-line.  You therefore don't need to do this parsing yourself.  For example, when a user calls `helm status --namespace my-rook-ns [tab][tab]`, Cobra will call your registered `ValidArgsFunction` after having parsed the `--namespace` flag, as it would have done when calling the `RunE` function.
-
-##### Debugging
-
-Cobra achieves dynamic completions written in Go through the use of a hidden command called by the completion script.  To debug your Go completion code, you can call this hidden command directly:
-```bash
-# helm __complete status har<ENTER>
-harbor
-:4
-Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr
-```
-***Important:*** If the noun to complete is empty, you must pass an empty parameter to the `__complete` command:
-```bash
-# helm __complete status ""<ENTER>
-harbor
-notary
-rook
-thanos
-:4
-Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr
-```
-Calling the `__complete` command directly allows you to run the Go debugger to troubleshoot your code.  You can also add printouts to your code; Cobra provides the following functions to use for printouts in Go completion code:
-```go
-// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE
-// is set to a file path) and optionally prints to stderr.
-cobra.CompDebug(msg string, printToStdErr bool) {
-cobra.CompDebugln(msg string, printToStdErr bool)
-
-// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE
-// is set to a file path) and to stderr.
-cobra.CompError(msg string)
-cobra.CompErrorln(msg string)
-```
-***Important:*** You should **not** leave traces that print to stdout in your completion code as they will be interpreted as completion choices by the completion script.  Instead, use the cobra-provided debugging traces functions mentioned above.
-
-#### 2. Custom completions of nouns written in Bash
-
-This method allows you to inject bash functions into the completion script.  Those bash functions are responsible for providing the completion choices for your own completions.
-
-Some more actual code that works in kubernetes:
 
 ```bash
 const (
@@ -253,93 +63,7 @@ Find more information at https://github.com/GoogleCloudPlatform/kubernetes.`,
 
 The `BashCompletionFunction` option is really only valid/useful on the root command. Doing the above will cause `__kubectl_custom_func()` (`__<command-use>_custom_func()`) to be called when the built in processor was unable to find a solution. In the case of kubernetes a valid command might look something like `kubectl get pod [mypod]`. If you type `kubectl get pod [tab][tab]` the `__kubectl_customc_func()` will run because the cobra.Command only understood "kubectl" and "get." `__kubectl_custom_func()` will see that the cobra.Command is "kubectl_get" and will thus call another helper `__kubectl_get_resource()`.  `__kubectl_get_resource` will look at the 'nouns' collected. In our example the only noun will be `pod`.  So it will call `__kubectl_parse_get pod`.  `__kubectl_parse_get` will actually call out to kubernetes and get any pods.  It will then set `COMPREPLY` to valid pods!
 
-## Mark flags as required
+Similarly, for flags:
-
-Most of the time completions will only show subcommands. But if a flag is required to make a subcommand work, you probably want it to show up when the user types [tab][tab].  Marking a flag as 'Required' is incredibly easy.
-
-```go
-cmd.MarkFlagRequired("pod")
-cmd.MarkFlagRequired("container")
-```
-
-and you'll get something like
-
-```bash
-# kubectl exec [tab][tab][tab]
--c            --container=  -p            --pod=  
-```
-
-# Specify valid filename extensions for flags that take a filename
-
-In this example we use --filename= and expect to get a json or yaml file as the argument. To make this easier we annotate the --filename flag with valid filename extensions.
-
-```go
-	annotations := []string{"json", "yaml", "yml"}
-	annotation := make(map[string][]string)
-	annotation[cobra.BashCompFilenameExt] = annotations
-
-	flag := &pflag.Flag{
-		Name:        "filename",
-		Shorthand:   "f",
-		Usage:       usage,
-		Value:       value,
-		DefValue:    value.String(),
-		Annotations: annotation,
-	}
-	cmd.Flags().AddFlag(flag)
-```
-
-Now when you run a command with this filename flag you'll get something like
-
-```bash
-# kubectl create -f 
-test/                         example/                      rpmbuild/
-hello.yml                     test.json
-```
-
-So while there are many other files in the CWD it only shows me subdirs and those with valid extensions.
-
-# Specify custom flag completion
-
-As for nouns, Cobra provides two ways of defining dynamic completion of flags.  Note that both these methods can be used along-side each other as long as they are not both used for the same flag.
-
-**Note**: *Custom Completions written in Go* will automatically work for other shell-completion scripts (e.g., Fish shell), while *Custom Completions written in Bash* will only work for Bash shell-completion.  It is therefore recommended to use *Custom Completions written in Go*.
-
-## 1. Custom completions of flags written in Go
-
-To provide a Go function that Cobra will execute when it needs the list of completion choices for a flag, you must register the function in the following manner:
-
-```go
-flagName := "output"
-cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
-	return []string{"json", "table", "yaml"}, cobra.ShellCompDirectiveDefault
-})
-```
-Notice that calling `RegisterFlagCompletionFunc()` is done through the `command` with which the flag is associated.  In our example this dynamic completion will give results like so:
-
-```bash
-# helm status --output [tab][tab]
-json table yaml
-```
-
-### Debugging
-
-You can also easily debug your Go completion code for flags:
-```bash
-# helm __complete status --output ""
-json
-table
-yaml
-:4
-Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr
-```
-***Important:*** You should **not** leave traces that print to stdout in your completion code as they will be interpreted as completion choices by the completion script.  Instead, use the cobra-provided debugging traces functions mentioned in the above section.
-
-## 2. Custom completions of flags written in Bash
-
-Alternatively, you can use bash code for flag custom completion. Similar to the filename
-completion and filtering using `cobra.BashCompFilenameExt`, you can specify
-a custom flag completion bash function with `cobra.BashCompCustom`:
 
 ```go
 	annotation := make(map[string][]string)
@@ -367,17 +91,3 @@ __kubectl_get_namespaces()
     fi
 }
 ```
-# Using bash aliases for commands
-
-You can also configure the `bash aliases` for the commands and they will also support completions.
-
-```bash
-alias aliasname=origcommand
-complete -o default -F __start_origcommand aliasname
-
-# and now when you run `aliasname` completion will make
-# suggestions as it did for `origcommand`.
-
-$) aliasname <tab><tab>
-completion     firstcommand   secondcommand
-```

vendor/github.com/spf13/cobra/bash_completionsV2.go

@@ -0,0 +1,383 @@
+// Copyright 2013-2022 The Cobra 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 cobra
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"os"
+)
+
+func (c *Command) genBashCompletion(w io.Writer, includeDesc bool) error {
+	buf := new(bytes.Buffer)
+	genBashComp(buf, c.Name(), includeDesc)
+	_, err := buf.WriteTo(w)
+	return err
+}
+
+func genBashComp(buf io.StringWriter, name string, includeDesc bool) {
+	compCmd := ShellCompRequestCmd
+	if !includeDesc {
+		compCmd = ShellCompNoDescRequestCmd
+	}
+
+	WriteStringAndCheck(buf, fmt.Sprintf(`# bash completion V2 for %-36[1]s -*- shell-script -*-
+
+__%[1]s_debug()
+{
+    if [[ -n ${BASH_COMP_DEBUG_FILE:-} ]]; then
+        echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
+    fi
+}
+
+# Macs have bash3 for which the bash-completion package doesn't include
+# _init_completion. This is a minimal version of that function.
+__%[1]s_init_completion()
+{
+    COMPREPLY=()
+    _get_comp_words_by_ref "$@" cur prev words cword
+}
+
+# This function calls the %[1]s program to obtain the completion
+# results and the directive.  It fills the 'out' and 'directive' vars.
+__%[1]s_get_completion_results() {
+    local requestComp lastParam lastChar args
+
+    # Prepare the command to request completions for the program.
+    # Calling ${words[0]} instead of directly %[1]s allows to handle aliases
+    args=("${words[@]:1}")
+    requestComp="${words[0]} %[2]s ${args[*]}"
+
+    lastParam=${words[$((${#words[@]}-1))]}
+    lastChar=${lastParam:$((${#lastParam}-1)):1}
+    __%[1]s_debug "lastParam ${lastParam}, lastChar ${lastChar}"
+
+    if [ -z "${cur}" ] && [ "${lastChar}" != "=" ]; then
+        # If the last parameter is complete (there is a space following it)
+        # We add an extra empty parameter so we can indicate this to the go method.
+        __%[1]s_debug "Adding extra empty parameter"
+        requestComp="${requestComp} ''"
+    fi
+
+    # When completing a flag with an = (e.g., %[1]s -n=<TAB>)
+    # bash focuses on the part after the =, so we need to remove
+    # the flag part from $cur
+    if [[ "${cur}" == -*=* ]]; then
+        cur="${cur#*=}"
+    fi
+
+    __%[1]s_debug "Calling ${requestComp}"
+    # Use eval to handle any environment variables and such
+    out=$(eval "${requestComp}" 2>/dev/null)
+
+    # Extract the directive integer at the very end of the output following a colon (:)
+    directive=${out##*:}
+    # Remove the directive
+    out=${out%%:*}
+    if [ "${directive}" = "${out}" ]; then
+        # There is not directive specified
+        directive=0
+    fi
+    __%[1]s_debug "The completion directive is: ${directive}"
+    __%[1]s_debug "The completions are: ${out}"
+}
+
+__%[1]s_process_completion_results() {
+    local shellCompDirectiveError=%[3]d
+    local shellCompDirectiveNoSpace=%[4]d
+    local shellCompDirectiveNoFileComp=%[5]d
+    local shellCompDirectiveFilterFileExt=%[6]d
+    local shellCompDirectiveFilterDirs=%[7]d
+
+    if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then
+        # Error code.  No completion.
+        __%[1]s_debug "Received error from custom completion go code"
+        return
+    else
+        if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then
+            if [[ $(type -t compopt) = "builtin" ]]; then
+                __%[1]s_debug "Activating no space"
+                compopt -o nospace
+            else
+                __%[1]s_debug "No space directive not supported in this version of bash"
+            fi
+        fi
+        if [ $((directive & shellCompDirectiveNoFileComp)) -ne 0 ]; then
+            if [[ $(type -t compopt) = "builtin" ]]; then
+                __%[1]s_debug "Activating no file completion"
+                compopt +o default
+            else
+                __%[1]s_debug "No file completion directive not supported in this version of bash"
+            fi
+        fi
+    fi
+
+    # Separate activeHelp from normal completions
+    local completions=()
+    local activeHelp=()
+    __%[1]s_extract_activeHelp
+
+    if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then
+        # File extension filtering
+        local fullFilter filter filteringCmd
+
+        # Do not use quotes around the $completions variable or else newline
+        # characters will be kept.
+        for filter in ${completions[*]}; do
+            fullFilter+="$filter|"
+        done
+
+        filteringCmd="_filedir $fullFilter"
+        __%[1]s_debug "File filtering command: $filteringCmd"
+        $filteringCmd
+    elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then
+        # File completion for directories only
+
+        # Use printf to strip any trailing newline
+        local subdir
+        subdir=$(printf "%%s" "${completions[0]}")
+        if [ -n "$subdir" ]; then
+            __%[1]s_debug "Listing directories in $subdir"
+            pushd "$subdir" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1 || return
+        else
+            __%[1]s_debug "Listing directories in ."
+            _filedir -d
+        fi
+    else
+        __%[1]s_handle_completion_types
+    fi
+
+    __%[1]s_handle_special_char "$cur" :
+    __%[1]s_handle_special_char "$cur" =
+
+    # Print the activeHelp statements before we finish
+    if [ ${#activeHelp[*]} -ne 0 ]; then
+        printf "\n";
+        printf "%%s\n" "${activeHelp[@]}"
+        printf "\n"
+
+        # The prompt format is only available from bash 4.4.
+        # We test if it is available before using it.
+        if (x=${PS1@P}) 2> /dev/null; then
+            printf "%%s" "${PS1@P}${COMP_LINE[@]}"
+        else
+            # Can't print the prompt.  Just print the
+            # text the user had typed, it is workable enough.
+            printf "%%s" "${COMP_LINE[@]}"
+        fi
+    fi
+}
+
+# Separate activeHelp lines from real completions.
+# Fills the $activeHelp and $completions arrays.
+__%[1]s_extract_activeHelp() {
+    local activeHelpMarker="%[8]s"
+    local endIndex=${#activeHelpMarker}
+
+    while IFS='' read -r comp; do
+        if [ "${comp:0:endIndex}" = "$activeHelpMarker" ]; then
+            comp=${comp:endIndex}
+            __%[1]s_debug "ActiveHelp found: $comp"
+            if [ -n "$comp" ]; then
+                activeHelp+=("$comp")
+            fi
+        else
+            # Not an activeHelp line but a normal completion
+            completions+=("$comp")
+        fi
+    done < <(printf "%%s\n" "${out}")
+}
+
+__%[1]s_handle_completion_types() {
+    __%[1]s_debug "__%[1]s_handle_completion_types: COMP_TYPE is $COMP_TYPE"
+
+    case $COMP_TYPE in
+    37|42)
+        # Type: menu-complete/menu-complete-backward and insert-completions
+        # If the user requested inserting one completion at a time, or all
+        # completions at once on the command-line we must remove the descriptions.
+        # https://github.com/spf13/cobra/issues/1508
+        local tab=$'\t' comp
+        while IFS='' read -r comp; do
+            [[ -z $comp ]] && continue
+            # Strip any description
+            comp=${comp%%%%$tab*}
+            # Only consider the completions that match
+            if [[ $comp == "$cur"* ]]; then
+                COMPREPLY+=("$comp")
+            fi
+        done < <(printf "%%s\n" "${completions[@]}")
+        ;;
+
+    *)
+        # Type: complete (normal completion)
+        __%[1]s_handle_standard_completion_case
+        ;;
+    esac
+}
+
+__%[1]s_handle_standard_completion_case() {
+    local tab=$'\t' comp
+
+    # Short circuit to optimize if we don't have descriptions
+    if [[ "${completions[*]}" != *$tab* ]]; then
+        IFS=$'\n' read -ra COMPREPLY -d '' < <(compgen -W "${completions[*]}" -- "$cur")
+        return 0
+    fi
+
+    local longest=0
+    local compline
+    # Look for the longest completion so that we can format things nicely
+    while IFS='' read -r compline; do
+        [[ -z $compline ]] && continue
+        # Strip any description before checking the length
+        comp=${compline%%%%$tab*}
+        # Only consider the completions that match
+        [[ $comp == "$cur"* ]] || continue
+        COMPREPLY+=("$compline")
+        if ((${#comp}>longest)); then
+            longest=${#comp}
+        fi
+    done < <(printf "%%s\n" "${completions[@]}")
+
+    # If there is a single completion left, remove the description text
+    if [ ${#COMPREPLY[*]} -eq 1 ]; then
+        __%[1]s_debug "COMPREPLY[0]: ${COMPREPLY[0]}"
+        comp="${COMPREPLY[0]%%%%$tab*}"
+        __%[1]s_debug "Removed description from single completion, which is now: ${comp}"
+        COMPREPLY[0]=$comp
+    else # Format the descriptions
+        __%[1]s_format_comp_descriptions $longest
+    fi
+}
+
+__%[1]s_handle_special_char()
+{
+    local comp="$1"
+    local char=$2
+    if [[ "$comp" == *${char}* && "$COMP_WORDBREAKS" == *${char}* ]]; then
+        local word=${comp%%"${comp##*${char}}"}
+        local idx=${#COMPREPLY[*]}
+        while [[ $((--idx)) -ge 0 ]]; do
+            COMPREPLY[$idx]=${COMPREPLY[$idx]#"$word"}
+        done
+    fi
+}
+
+__%[1]s_format_comp_descriptions()
+{
+    local tab=$'\t'
+    local comp desc maxdesclength
+    local longest=$1
+
+    local i ci
+    for ci in ${!COMPREPLY[*]}; do
+        comp=${COMPREPLY[ci]}
+        # Properly format the description string which follows a tab character if there is one
+        if [[ "$comp" == *$tab* ]]; then
+            __%[1]s_debug "Original comp: $comp"
+            desc=${comp#*$tab}
+            comp=${comp%%%%$tab*}
+
+            # $COLUMNS stores the current shell width.
+            # Remove an extra 4 because we add 2 spaces and 2 parentheses.
+            maxdesclength=$(( COLUMNS - longest - 4 ))
+
+            # Make sure we can fit a description of at least 8 characters
+            # if we are to align the descriptions.
+            if [[ $maxdesclength -gt 8 ]]; then
+                # Add the proper number of spaces to align the descriptions
+                for ((i = ${#comp} ; i < longest ; i++)); do
+                    comp+=" "
+                done
+            else
+                # Don't pad the descriptions so we can fit more text after the completion
+                maxdesclength=$(( COLUMNS - ${#comp} - 4 ))
+            fi
+
+            # If there is enough space for any description text,
+            # truncate the descriptions that are too long for the shell width
+            if [ $maxdesclength -gt 0 ]; then
+                if [ ${#desc} -gt $maxdesclength ]; then
+                    desc=${desc:0:$(( maxdesclength - 1 ))}
+                    desc+="…"
+                fi
+                comp+="  ($desc)"
+            fi
+            COMPREPLY[ci]=$comp
+            __%[1]s_debug "Final comp: $comp"
+        fi
+    done
+}
+
+__start_%[1]s()
+{
+    local cur prev words cword split
+
+    COMPREPLY=()
+
+    # Call _init_completion from the bash-completion package
+    # to prepare the arguments properly
+    if declare -F _init_completion >/dev/null 2>&1; then
+        _init_completion -n "=:" || return
+    else
+        __%[1]s_init_completion -n "=:" || return
+    fi
+
+    __%[1]s_debug
+    __%[1]s_debug "========= starting completion logic =========="
+    __%[1]s_debug "cur is ${cur}, words[*] is ${words[*]}, #words[@] is ${#words[@]}, cword is $cword"
+
+    # The user could have moved the cursor backwards on the command-line.
+    # We need to trigger completion from the $cword location, so we need
+    # to truncate the command-line ($words) up to the $cword location.
+    words=("${words[@]:0:$cword+1}")
+    __%[1]s_debug "Truncated words[*]: ${words[*]},"
+
+    local out directive
+    __%[1]s_get_completion_results
+    __%[1]s_process_completion_results
+}
+
+if [[ $(type -t compopt) = "builtin" ]]; then
+    complete -o default -F __start_%[1]s %[1]s
+else
+    complete -o default -o nospace -F __start_%[1]s %[1]s
+fi
+
+# ex: ts=4 sw=4 et filetype=sh
+`, name, compCmd,
+		ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
+		ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs,
+		activeHelpMarker))
+}
+
+// GenBashCompletionFileV2 generates Bash completion version 2.
+func (c *Command) GenBashCompletionFileV2(filename string, includeDesc bool) error {
+	outFile, err := os.Create(filename)
+	if err != nil {
+		return err
+	}
+	defer outFile.Close()
+
+	return c.GenBashCompletionV2(outFile, includeDesc)
+}
+
+// GenBashCompletionV2 generates Bash completion file version 2
+// and writes it to the passed writer.
+func (c *Command) GenBashCompletionV2(w io.Writer, includeDesc bool) error {
+	return c.genBashCompletion(w, includeDesc)
+}

vendor/github.com/spf13/cobra/cobra.go

@@ -1,9 +1,10 @@
-// Copyright © 2013 Steve Francia <spf@spf13.com>.
+// Copyright 2013-2022 The Cobra 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
+//
+//      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,
@@ -19,6 +20,7 @@ package cobra
 import (
 	"fmt"
 	"io"
+	"os"
 	"reflect"
 	"strconv"
 	"strings"
@@ -38,15 +40,25 @@ var templateFuncs = template.FuncMap{
 }
 
 var initializers []func()
+var finalizers []func()
+
+const (
+	defaultPrefixMatching  = false
+	defaultCommandSorting  = true
+	defaultCaseInsensitive = false
+)
 
 // EnablePrefixMatching allows to set automatic prefix matching. Automatic prefix matching can be a dangerous thing
 // to automatically enable in CLI tools.
 // Set this to true to enable it.
-var EnablePrefixMatching = false
+var EnablePrefixMatching = defaultPrefixMatching
 
 // EnableCommandSorting controls sorting of the slice of commands, which is turned on by default.
 // To disable sorting, set it to false.
-var EnableCommandSorting = true
+var EnableCommandSorting = defaultCommandSorting
+
+// EnableCaseInsensitive allows case-insensitive commands names. (case sensitive by default)
+var EnableCaseInsensitive = defaultCaseInsensitive
 
 // MousetrapHelpText enables an information splash screen on Windows
 // if the CLI is started from explorer.exe.
@@ -83,6 +95,12 @@ func OnInitialize(y ...func()) {
 	initializers = append(initializers, y...)
 }
 
+// OnFinalize sets the passed functions to be run when each command's
+// Execute method is terminated.
+func OnFinalize(y ...func()) {
+	finalizers = append(finalizers, y...)
+}
+
 // FIXME Gt is unused by cobra and should be removed in a version 2. It exists only for compatibility with users of cobra.
 
 // Gt takes two types and checks whether the first type is greater than the second. In case of types Arrays, Chans,
@@ -205,3 +223,17 @@ func stringInSlice(a string, list []string) bool {
 	}
 	return false
 }
+
+// CheckErr prints the msg with the prefix 'Error:' and exits with error code 1. If the msg is nil, it does nothing.
+func CheckErr(msg interface{}) {
+	if msg != nil {
+		fmt.Fprintln(os.Stderr, "Error:", msg)
+		os.Exit(1)
+	}
+}
+
+// WriteStringAndCheck writes a string into a buffer, and checks if the error is not nil.
+func WriteStringAndCheck(b io.StringWriter, s string) {
+	_, err := b.WriteString(s)
+	CheckErr(err)
+}

vendor/github.com/spf13/cobra/command.go

@@ -1,9 +1,10 @@
-// Copyright © 2013 Steve Francia <spf@spf13.com>.
+// Copyright 2013-2022 The Cobra 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
+//
+//      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,
@@ -18,6 +19,7 @@ package cobra
 import (
 	"bytes"
 	"context"
+	"errors"
 	"fmt"
 	"io"
 	"os"
@@ -28,15 +30,31 @@ import (
 	flag "github.com/spf13/pflag"
 )
 
+const FlagSetByCobraAnnotation = "cobra_annotation_flag_set_by_cobra"
+
 // FParseErrWhitelist configures Flag parse errors to be ignored
 type FParseErrWhitelist flag.ParseErrorsWhitelist
 
+// Structure to manage groups for commands
+type Group struct {
+	ID    string
+	Title string
+}
+
 // Command is just that, a command for your application.
 // E.g.  'go run ...' - 'run' is the command. Cobra requires
 // you to define the usage and description as part of your command
 // definition to ensure usability.
 type Command struct {
 	// Use is the one-line usage message.
+	// Recommended syntax is as follow:
+	//   [ ] identifies an optional argument. Arguments that are not enclosed in brackets are required.
+	//   ... indicates that you can specify multiple values for the previous argument.
+	//   |   indicates mutually exclusive information. You can use the argument to the left of the separator or the
+	//       argument to the right of the separator. You cannot use both arguments in a single use of the command.
+	//   { } delimits a set of mutually exclusive arguments when one of the arguments is required. If the arguments are
+	//       optional, they are enclosed in brackets ([ ]).
+	// Example: add [-F file | -D dir]... [-f format] profile
 	Use string
 
 	// Aliases is an array of aliases that can be used instead of the first word in Use.
@@ -49,15 +67,18 @@ type Command struct {
 	// Short is the short description shown in the 'help' output.
 	Short string
 
+	// The group id under which this subcommand is grouped in the 'help' output of its parent.
+	GroupID string
+
 	// Long is the long message shown in the 'help <this-command>' output.
 	Long string
 
 	// Example is examples of how to use the command.
 	Example string
 
-	// ValidArgs is list of all valid non-flag arguments that are accepted in bash completions
+	// ValidArgs is list of all valid non-flag arguments that are accepted in shell completions
 	ValidArgs []string
-	// ValidArgsFunction is an optional function that provides valid non-flag arguments for bash completion.
+	// ValidArgsFunction is an optional function that provides valid non-flag arguments for shell completion.
 	// It is a dynamic version of using ValidArgs.
 	// Only one of ValidArgs and ValidArgsFunction can be used for a command.
 	ValidArgsFunction func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)
@@ -66,19 +87,17 @@ type Command struct {
 	Args PositionalArgs
 
 	// ArgAliases is List of aliases for ValidArgs.
-	// These are not suggested to the user in the bash completion,
+	// These are not suggested to the user in the shell completion,
 	// but accepted if entered manually.
 	ArgAliases []string
 
-	// BashCompletionFunction is custom functions used by the bash autocompletion generator.
+	// BashCompletionFunction is custom bash functions used by the legacy bash autocompletion generator.
+	// For portability with other shells, it is recommended to instead use ValidArgsFunction
 	BashCompletionFunction string
 
 	// Deprecated defines, if this command is deprecated and should print this string when used.
 	Deprecated string
 
-	// Hidden defines, if this command is hidden and should NOT show up in the list of available commands.
-	Hidden bool
-
 	// Annotations are key/value pairs that can be used by applications to identify or
 	// group commands.
 	Annotations map[string]string
@@ -118,54 +137,8 @@ type Command struct {
 	// PersistentPostRunE: PersistentPostRun but returns an error.
 	PersistentPostRunE func(cmd *Command, args []string) error
 
-	// SilenceErrors is an option to quiet errors down stream.
+	// groups for subcommands
-	SilenceErrors bool
+	commandgroups []*Group
-
-	// SilenceUsage is an option to silence usage when an error occurs.
-	SilenceUsage bool
-
-	// DisableFlagParsing disables the flag parsing.
-	// If this is true all flags will be passed to the command as arguments.
-	DisableFlagParsing bool
-
-	// DisableAutoGenTag defines, if gen tag ("Auto generated by spf13/cobra...")
-	// will be printed by generating docs for this command.
-	DisableAutoGenTag bool
-
-	// DisableFlagsInUseLine will disable the addition of [flags] to the usage
-	// line of a command when printing help or generating docs
-	DisableFlagsInUseLine bool
-
-	// DisableSuggestions disables the suggestions based on Levenshtein distance
-	// that go along with 'unknown command' messages.
-	DisableSuggestions bool
-	// SuggestionsMinimumDistance defines minimum levenshtein distance to display suggestions.
-	// Must be > 0.
-	SuggestionsMinimumDistance int
-
-	// TraverseChildren parses flags on all parents before executing child command.
-	TraverseChildren bool
-
-	// FParseErrWhitelist flag parse errors to be ignored
-	FParseErrWhitelist FParseErrWhitelist
-
-	ctx context.Context
-
-	// commands is the list of commands supported by this program.
-	commands []*Command
-	// parent is a parent command for this command.
-	parent *Command
-	// Max lengths of commands' string lengths for use in padding.
-	commandsMaxUseLen         int
-	commandsMaxCommandPathLen int
-	commandsMaxNameLen        int
-	// commandsAreSorted defines, if command slice are sorted or not.
-	commandsAreSorted bool
-	// commandCalledAs is the name or alias value used to call this command.
-	commandCalledAs struct {
-		name   string
-		called bool
-	}
 
 	// args is actual args parsed from flags.
 	args []string
@@ -199,6 +172,12 @@ type Command struct {
 	// helpCommand is command with usage 'help'. If it's not defined by user,
 	// cobra uses default help command.
 	helpCommand *Command
+	// helpCommandGroupID is the group id for the helpCommand
+	helpCommandGroupID string
+
+	// completionCommandGroupID is the group id for the completion command
+	completionCommandGroupID string
+
 	// versionTemplate is the version template defined by user.
 	versionTemplate string
 
@@ -208,14 +187,82 @@ type Command struct {
 	outWriter io.Writer
 	// errWriter is a writer defined by the user that replaces stderr
 	errWriter io.Writer
+
+	// FParseErrWhitelist flag parse errors to be ignored
+	FParseErrWhitelist FParseErrWhitelist
+
+	// CompletionOptions is a set of options to control the handling of shell completion
+	CompletionOptions CompletionOptions
+
+	// commandsAreSorted defines, if command slice are sorted or not.
+	commandsAreSorted bool
+	// commandCalledAs is the name or alias value used to call this command.
+	commandCalledAs struct {
+		name   string
+		called bool
+	}
+
+	ctx context.Context
+
+	// commands is the list of commands supported by this program.
+	commands []*Command
+	// parent is a parent command for this command.
+	parent *Command
+	// Max lengths of commands' string lengths for use in padding.
+	commandsMaxUseLen         int
+	commandsMaxCommandPathLen int
+	commandsMaxNameLen        int
+
+	// TraverseChildren parses flags on all parents before executing child command.
+	TraverseChildren bool
+
+	// Hidden defines, if this command is hidden and should NOT show up in the list of available commands.
+	Hidden bool
+
+	// SilenceErrors is an option to quiet errors down stream.
+	SilenceErrors bool
+
+	// SilenceUsage is an option to silence usage when an error occurs.
+	SilenceUsage bool
+
+	// DisableFlagParsing disables the flag parsing.
+	// If this is true all flags will be passed to the command as arguments.
+	DisableFlagParsing bool
+
+	// DisableAutoGenTag defines, if gen tag ("Auto generated by spf13/cobra...")
+	// will be printed by generating docs for this command.
+	DisableAutoGenTag bool
+
+	// DisableFlagsInUseLine will disable the addition of [flags] to the usage
+	// line of a command when printing help or generating docs
+	DisableFlagsInUseLine bool
+
+	// DisableSuggestions disables the suggestions based on Levenshtein distance
+	// that go along with 'unknown command' messages.
+	DisableSuggestions bool
+
+	// SuggestionsMinimumDistance defines minimum levenshtein distance to display suggestions.
+	// Must be > 0.
+	SuggestionsMinimumDistance int
 }
 
-// Context returns underlying command context. If command wasn't
+// Context returns underlying command context. If command was executed
-// executed with ExecuteContext Context returns Background context.
+// with ExecuteContext or the context was set with SetContext, the
+// previously set context will be returned. Otherwise, nil is returned.
+//
+// Notice that a call to Execute and ExecuteC will replace a nil context of
+// a command with a context.Background, so a background context will be
+// returned by Context after one of these functions has been called.
 func (c *Command) Context() context.Context {
 	return c.ctx
 }
 
+// SetContext sets context for the command. This context will be overwritten by
+// Command.ExecuteContext or Command.ExecuteContextC.
+func (c *Command) SetContext(ctx context.Context) {
+	c.ctx = ctx
+}
+
 // SetArgs sets arguments for the command. It is set to os.Args[1:] by default, if desired, can be overridden
 // particularly useful when testing.
 func (c *Command) SetArgs(a []string) {
@@ -274,6 +321,21 @@ func (c *Command) SetHelpCommand(cmd *Command) {
 	c.helpCommand = cmd
 }
 
+// SetHelpCommandGroup sets the group id of the help command.
+func (c *Command) SetHelpCommandGroupID(groupID string) {
+	if c.helpCommand != nil {
+		c.helpCommand.GroupID = groupID
+	}
+	// helpCommandGroupID is used if no helpCommand is defined by the user
+	c.helpCommandGroupID = groupID
+}
+
+// SetCompletionCommandGroup sets the group id of the completion command.
+func (c *Command) SetCompletionCommandGroupID(groupID string) {
+	// completionCommandGroupID is used if no completion command is defined by the user
+	c.Root().completionCommandGroupID = groupID
+}
+
 // SetHelpTemplate sets help template to be used. Application can use it to set custom template.
 func (c *Command) SetHelpTemplate(s string) {
 	c.helpTemplate = s
@@ -359,7 +421,7 @@ func (c *Command) UsageFunc() (f func(*Command) error) {
 		c.mergePersistentFlags()
 		err := tmpl(c.OutOrStderr(), c.UsageTemplate(), c)
 		if err != nil {
-			c.Println(err)
+			c.PrintErrln(err)
 		}
 		return err
 	}
@@ -387,7 +449,7 @@ func (c *Command) HelpFunc() func(*Command, []string) {
 		// See https://github.com/spf13/cobra/issues/1002
 		err := tmpl(c.OutOrStdout(), c.HelpTemplate(), c)
 		if err != nil {
-			c.Println(err)
+			c.PrintErrln(err)
 		}
 	}
 }
@@ -410,7 +472,7 @@ func (c *Command) UsageString() string {
 	c.outWriter = bb
 	c.errWriter = bb
 
-	c.Usage()
+	CheckErr(c.Usage())
 
 	// Setting things back to normal
 	c.outWriter = tmpOutput
@@ -482,10 +544,16 @@ Aliases:
   {{.NameAndAliases}}{{end}}{{if .HasExample}}
 
 Examples:
-{{.Example}}{{end}}{{if .HasAvailableSubCommands}}
+{{.Example}}{{end}}{{if .HasAvailableSubCommands}}{{$cmds := .Commands}}{{if eq (len .Groups) 0}}
 
-Available Commands:{{range .Commands}}{{if (or .IsAvailableCommand (eq .Name "help"))}}
+Available Commands:{{range $cmds}}{{if (or .IsAvailableCommand (eq .Name "help"))}}
-  {{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{if .HasAvailableLocalFlags}}
+  {{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{else}}{{range $group := .Groups}}
+
+{{.Title}}{{range $cmds}}{{if (and (eq .GroupID $group.ID) (or .IsAvailableCommand (eq .Name "help")))}}
+  {{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{if not .AllChildCommandsHaveGroup}}
+
+Additional Commands:{{range $cmds}}{{if (and (eq .GroupID "") (or .IsAvailableCommand (eq .Name "help")))}}
+  {{rpad .Name .NamePadding }} {{.Short}}{{end}}{{end}}{{end}}{{end}}{{end}}{{if .HasAvailableLocalFlags}}
 
 Flags:
 {{.LocalFlags.FlagUsages | trimTrailingWhitespaces}}{{end}}{{if .HasAvailableInheritedFlags}}
@@ -650,7 +718,7 @@ func (c *Command) findSuggestions(arg string) string {
 func (c *Command) findNext(next string) *Command {
 	matches := make([]*Command, 0)
 	for _, cmd := range c.commands {
-		if cmd.Name() == next || cmd.HasAlias(next) {
+		if commandNameMatches(cmd.Name(), next) || cmd.HasAlias(next) {
 			cmd.commandCalledAs.name = next
 			return cmd
 		}
@@ -807,6 +875,8 @@ func (c *Command) execute(a []string) (err error) {
 
 	c.preRun()
 
+	defer c.postRun()
+
 	argWoFlags := c.Flags().Args()
 	if c.DisableFlagParsing {
 		argWoFlags = a
@@ -835,9 +905,13 @@ func (c *Command) execute(a []string) (err error) {
 		c.PreRun(c, argWoFlags)
 	}
 
-	if err := c.validateRequiredFlags(); err != nil {
+	if err := c.ValidateRequiredFlags(); err != nil {
 		return err
 	}
+	if err := c.ValidateFlagGroups(); err != nil {
+		return err
+	}
+
 	if c.RunE != nil {
 		if err := c.RunE(c, argWoFlags); err != nil {
 			return err
@@ -873,8 +947,15 @@ func (c *Command) preRun() {
 	}
 }
 
+func (c *Command) postRun() {
+	for _, x := range finalizers {
+		x()
+	}
+}
+
 // ExecuteContext is the same as Execute(), but sets the ctx on the command.
-// Retrieve ctx by calling cmd.Context() inside your *Run lifecycle functions.
+// Retrieve ctx by calling cmd.Context() inside your *Run lifecycle or ValidArgs
+// functions.
 func (c *Command) ExecuteContext(ctx context.Context) error {
 	c.ctx = ctx
 	return c.Execute()
@@ -888,6 +969,14 @@ func (c *Command) Execute() error {
 	return err
 }
 
+// ExecuteContextC is the same as ExecuteC(), but sets the ctx on the command.
+// Retrieve ctx by calling cmd.Context() inside your *Run lifecycle or ValidArgs
+// functions.
+func (c *Command) ExecuteContextC(ctx context.Context) (*Command, error) {
+	c.ctx = ctx
+	return c.ExecuteC()
+}
+
 // ExecuteC executes the command.
 func (c *Command) ExecuteC() (cmd *Command, err error) {
 	if c.ctx == nil {
@@ -904,9 +993,14 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 		preExecHookFn(c)
 	}
 
-	// initialize help as the last point possible to allow for user
+	// initialize help at the last point to allow for user overriding
-	// overriding
 	c.InitDefaultHelpCmd()
+	// initialize completion at the last point to allow for user overriding
+	c.InitDefaultCompletionCmd()
+
+	// Now that all commands have been created, let's make sure all groups
+	// are properly created also
+	c.checkCommandGroups()
 
 	args := c.args
 
@@ -915,7 +1009,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 		args = os.Args[1:]
 	}
 
-	// initialize the hidden command to be used for bash completion
+	// initialize the hidden command to be used for shell completion
 	c.initCompleteCmd(args)
 
 	var flags []string
@@ -930,8 +1024,8 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 			c = cmd
 		}
 		if !c.SilenceErrors {
-			c.Println("Error:", err.Error())
+			c.PrintErrln("Error:", err.Error())
-			c.Printf("Run '%v --help' for usage.\n", c.CommandPath())
+			c.PrintErrf("Run '%v --help' for usage.\n", c.CommandPath())
 		}
 		return c, err
 	}
@@ -951,18 +1045,18 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 	if err != nil {
 		// Always show help if requested, even if SilenceErrors is in
 		// effect
-		if err == flag.ErrHelp {
+		if errors.Is(err, flag.ErrHelp) {
 			cmd.HelpFunc()(cmd, args)
 			return cmd, nil
 		}
 
-		// If root command has SilentErrors flagged,
+		// If root command has SilenceErrors flagged,
 		// all subcommands should respect it
 		if !cmd.SilenceErrors && !c.SilenceErrors {
-			c.Println("Error:", err.Error())
+			c.PrintErrln("Error:", err.Error())
 		}
 
-		// If root command has SilentUsage flagged,
+		// If root command has SilenceUsage flagged,
 		// all subcommands should respect it
 		if !cmd.SilenceUsage && !c.SilenceUsage {
 			c.Println(cmd.UsageString())
@@ -973,12 +1067,17 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
 
 func (c *Command) ValidateArgs(args []string) error {
 	if c.Args == nil {
-		return nil
+		return ArbitraryArgs(c, args)
 	}
 	return c.Args(c, args)
 }
 
-func (c *Command) validateRequiredFlags() error {
+// ValidateRequiredFlags validates all required flags are present and returns an error otherwise
+func (c *Command) ValidateRequiredFlags() error {
+	if c.DisableFlagParsing {
+		return nil
+	}
+
 	flags := c.Flags()
 	missingFlagNames := []string{}
 	flags.VisitAll(func(pflag *flag.Flag) {
@@ -997,6 +1096,19 @@ func (c *Command) validateRequiredFlags() error {
 	return nil
 }
 
+// checkCommandGroups checks if a command has been added to a group that does not exists.
+// If so, we panic because it indicates a coding error that should be corrected.
+func (c *Command) checkCommandGroups() {
+	for _, sub := range c.commands {
+		// if Group is not defined let the developer know right away
+		if sub.GroupID != "" && !c.ContainsGroup(sub.GroupID) {
+			panic(fmt.Sprintf("group id '%s' is not defined for subcommand '%s'", sub.GroupID, sub.CommandPath()))
+		}
+
+		sub.checkCommandGroups()
+	}
+}
+
 // InitDefaultHelpFlag adds default help flag to c.
 // It is called automatically by executing the c or by calling help and usage.
 // If c already has help flag, it will do nothing.
@@ -1010,6 +1122,7 @@ func (c *Command) InitDefaultHelpFlag() {
 			usage += c.Name()
 		}
 		c.Flags().BoolP("help", "h", false, usage)
+		_ = c.Flags().SetAnnotation("help", FlagSetByCobraAnnotation, []string{"true"})
 	}
 }
 
@@ -1035,6 +1148,7 @@ func (c *Command) InitDefaultVersionFlag() {
 		} else {
 			c.Flags().Bool("version", false, usage)
 		}
+		_ = c.Flags().SetAnnotation("version", FlagSetByCobraAnnotation, []string{"true"})
 	}
 }
 
@@ -1052,17 +1166,37 @@ func (c *Command) InitDefaultHelpCmd() {
 			Short: "Help about any command",
 			Long: `Help provides help for any command in the application.
 Simply type ` + c.Name() + ` help [path to command] for full details.`,
-
+			ValidArgsFunction: func(c *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
+				var completions []string
+				cmd, _, e := c.Root().Find(args)
+				if e != nil {
+					return nil, ShellCompDirectiveNoFileComp
+				}
+				if cmd == nil {
+					// Root help command.
+					cmd = c.Root()
+				}
+				for _, subCmd := range cmd.Commands() {
+					if subCmd.IsAvailableCommand() || subCmd == cmd.helpCommand {
+						if strings.HasPrefix(subCmd.Name(), toComplete) {
+							completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short))
+						}
+					}
+				}
+				return completions, ShellCompDirectiveNoFileComp
+			},
 			Run: func(c *Command, args []string) {
 				cmd, _, e := c.Root().Find(args)
 				if cmd == nil || e != nil {
 					c.Printf("Unknown help topic %#q\n", args)
-					c.Root().Usage()
+					CheckErr(c.Root().Usage())
 				} else {
-					cmd.InitDefaultHelpFlag() // make possible 'help' flag to be shown
+					cmd.InitDefaultHelpFlag()    // make possible 'help' flag to be shown
-					cmd.Help()
+					cmd.InitDefaultVersionFlag() // make possible 'version' flag to be shown
+					CheckErr(cmd.Help())
 				}
 			},
+			GroupID: c.helpCommandGroupID,
 		}
 	}
 	c.RemoveCommand(c.helpCommand)
@@ -1123,6 +1257,36 @@ func (c *Command) AddCommand(cmds ...*Command) {
 	}
 }
 
+// Groups returns a slice of child command groups.
+func (c *Command) Groups() []*Group {
+	return c.commandgroups
+}
+
+// AllChildCommandsHaveGroup returns if all subcommands are assigned to a group
+func (c *Command) AllChildCommandsHaveGroup() bool {
+	for _, sub := range c.commands {
+		if (sub.IsAvailableCommand() || sub == c.helpCommand) && sub.GroupID == "" {
+			return false
+		}
+	}
+	return true
+}
+
+// ContainGroups return if groupID exists in the list of command groups.
+func (c *Command) ContainsGroup(groupID string) bool {
+	for _, x := range c.commandgroups {
+		if x.ID == groupID {
+			return true
+		}
+	}
+	return false
+}
+
+// AddGroup adds one or more command groups to this parent command.
+func (c *Command) AddGroup(groups ...*Group) {
+	c.commandgroups = append(c.commandgroups, groups...)
+}
+
 // RemoveCommand removes one or more commands from a parent command.
 func (c *Command) RemoveCommand(cmds ...*Command) {
 	commands := []*Command{}
@@ -1179,12 +1343,12 @@ func (c *Command) PrintErr(i ...interface{}) {
 
 // PrintErrln is a convenience method to Println to the defined Err output, fallback to Stderr if not set.
 func (c *Command) PrintErrln(i ...interface{}) {
-	c.Print(fmt.Sprintln(i...))
+	c.PrintErr(fmt.Sprintln(i...))
 }
 
 // PrintErrf is a convenience method to Printf to the defined Err output, fallback to Stderr if not set.
 func (c *Command) PrintErrf(format string, i ...interface{}) {
-	c.Print(fmt.Sprintf(format, i...))
+	c.PrintErr(fmt.Sprintf(format, i...))
 }
 
 // CommandPath returns the full path to this command.
@@ -1266,7 +1430,7 @@ func (c *Command) Name() string {
 // HasAlias determines if a given string is an alias of the command.
 func (c *Command) HasAlias(s string) bool {
 	for _, a := range c.Aliases {
-		if a == s {
+		if commandNameMatches(a, s) {
 			return true
 		}
 	}
@@ -1443,7 +1607,8 @@ func (c *Command) LocalFlags() *flag.FlagSet {
 	}
 
 	addToLocal := func(f *flag.Flag) {
-		if c.lflags.Lookup(f.Name) == nil && c.parentsPflags.Lookup(f.Name) == nil {
+		// Add the flag if it is not a parent PFlag, or it shadows a parent PFlag
+		if c.lflags.Lookup(f.Name) == nil && f != c.parentsPflags.Lookup(f.Name) {
 			c.lflags.AddFlag(f)
 		}
 	}
@@ -1632,3 +1797,14 @@ func (c *Command) updateParentsPflags() {
 		c.parentsPflags.AddFlagSet(parent.PersistentFlags())
 	})
 }
+
+// commandNameMatches checks if two command names are equal
+// taking into account case sensitivity according to
+// EnableCaseInsensitive global configuration.
+func commandNameMatches(s string, t string) bool {
+	if EnableCaseInsensitive {
+		return strings.EqualFold(s, t)
+	}
+
+	return s == t
+}

vendor/github.com/spf13/cobra/command_notwin.go

@@ -1,3 +1,18 @@
+// Copyright 2013-2022 The Cobra 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.
+
+//go:build !windows
 // +build !windows
 
 package cobra

vendor/github.com/spf13/cobra/command_win.go

@@ -1,3 +1,18 @@
+// Copyright 2013-2022 The Cobra 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.
+
+//go:build windows
 // +build windows
 
 package cobra

vendor/github.com/spf13/cobra/completions.go

@@ -0,0 +1,871 @@
+// Copyright 2013-2022 The Cobra 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 cobra
+
+import (
+	"fmt"
+	"os"
+	"strings"
+	"sync"
+
+	"github.com/spf13/pflag"
+)
+
+const (
+	// ShellCompRequestCmd is the name of the hidden command that is used to request
+	// completion results from the program.  It is used by the shell completion scripts.
+	ShellCompRequestCmd = "__complete"
+	// ShellCompNoDescRequestCmd is the name of the hidden command that is used to request
+	// completion results without their description.  It is used by the shell completion scripts.
+	ShellCompNoDescRequestCmd = "__completeNoDesc"
+)
+
+// Global map of flag completion functions. Make sure to use flagCompletionMutex before you try to read and write from it.
+var flagCompletionFunctions = map[*pflag.Flag]func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective){}
+
+// lock for reading and writing from flagCompletionFunctions
+var flagCompletionMutex = &sync.RWMutex{}
+
+// ShellCompDirective is a bit map representing the different behaviors the shell
+// can be instructed to have once completions have been provided.
+type ShellCompDirective int
+
+type flagCompError struct {
+	subCommand string
+	flagName   string
+}
+
+func (e *flagCompError) Error() string {
+	return "Subcommand '" + e.subCommand + "' does not support flag '" + e.flagName + "'"
+}
+
+const (
+	// ShellCompDirectiveError indicates an error occurred and completions should be ignored.
+	ShellCompDirectiveError ShellCompDirective = 1 << iota
+
+	// ShellCompDirectiveNoSpace indicates that the shell should not add a space
+	// after the completion even if there is a single completion provided.
+	ShellCompDirectiveNoSpace
+
+	// ShellCompDirectiveNoFileComp indicates that the shell should not provide
+	// file completion even when no completion is provided.
+	ShellCompDirectiveNoFileComp
+
+	// ShellCompDirectiveFilterFileExt indicates that the provided completions
+	// should be used as file extension filters.
+	// For flags, using Command.MarkFlagFilename() and Command.MarkPersistentFlagFilename()
+	// is a shortcut to using this directive explicitly.  The BashCompFilenameExt
+	// annotation can also be used to obtain the same behavior for flags.
+	ShellCompDirectiveFilterFileExt
+
+	// ShellCompDirectiveFilterDirs indicates that only directory names should
+	// be provided in file completion.  To request directory names within another
+	// directory, the returned completions should specify the directory within
+	// which to search.  The BashCompSubdirsInDir annotation can be used to
+	// obtain the same behavior but only for flags.
+	ShellCompDirectiveFilterDirs
+
+	// ===========================================================================
+
+	// All directives using iota should be above this one.
+	// For internal use.
+	shellCompDirectiveMaxValue
+
+	// ShellCompDirectiveDefault indicates to let the shell perform its default
+	// behavior after completions have been provided.
+	// This one must be last to avoid messing up the iota count.
+	ShellCompDirectiveDefault ShellCompDirective = 0
+)
+
+const (
+	// Constants for the completion command
+	compCmdName              = "completion"
+	compCmdNoDescFlagName    = "no-descriptions"
+	compCmdNoDescFlagDesc    = "disable completion descriptions"
+	compCmdNoDescFlagDefault = false
+)
+
+// CompletionOptions are the options to control shell completion
+type CompletionOptions struct {
+	// DisableDefaultCmd prevents Cobra from creating a default 'completion' command
+	DisableDefaultCmd bool
+	// DisableNoDescFlag prevents Cobra from creating the '--no-descriptions' flag
+	// for shells that support completion descriptions
+	DisableNoDescFlag bool
+	// DisableDescriptions turns off all completion descriptions for shells
+	// that support them
+	DisableDescriptions bool
+	// HiddenDefaultCmd makes the default 'completion' command hidden
+	HiddenDefaultCmd bool
+}
+
+// NoFileCompletions can be used to disable file completion for commands that should
+// not trigger file completions.
+func NoFileCompletions(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
+	return nil, ShellCompDirectiveNoFileComp
+}
+
+// FixedCompletions can be used to create a completion function which always
+// returns the same results.
+func FixedCompletions(choices []string, directive ShellCompDirective) func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
+	return func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
+		return choices, directive
+	}
+}
+
+// RegisterFlagCompletionFunc should be called to register a function to provide completion for a flag.
+func (c *Command) RegisterFlagCompletionFunc(flagName string, f func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)) error {
+	flag := c.Flag(flagName)
+	if flag == nil {
+		return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' does not exist", flagName)
+	}
+	flagCompletionMutex.Lock()
+	defer flagCompletionMutex.Unlock()
+
+	if _, exists := flagCompletionFunctions[flag]; exists {
+		return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' already registered", flagName)
+	}
+	flagCompletionFunctions[flag] = f
+	return nil
+}
+
+// Returns a string listing the different directive enabled in the specified parameter
+func (d ShellCompDirective) string() string {
+	var directives []string
+	if d&ShellCompDirectiveError != 0 {
+		directives = append(directives, "ShellCompDirectiveError")
+	}
+	if d&ShellCompDirectiveNoSpace != 0 {
+		directives = append(directives, "ShellCompDirectiveNoSpace")
+	}
+	if d&ShellCompDirectiveNoFileComp != 0 {
+		directives = append(directives, "ShellCompDirectiveNoFileComp")
+	}
+	if d&ShellCompDirectiveFilterFileExt != 0 {
+		directives = append(directives, "ShellCompDirectiveFilterFileExt")
+	}
+	if d&ShellCompDirectiveFilterDirs != 0 {
+		directives = append(directives, "ShellCompDirectiveFilterDirs")
+	}
+	if len(directives) == 0 {
+		directives = append(directives, "ShellCompDirectiveDefault")
+	}
+
+	if d >= shellCompDirectiveMaxValue {
+		return fmt.Sprintf("ERROR: unexpected ShellCompDirective value: %d", d)
+	}
+	return strings.Join(directives, ", ")
+}
+
+// Adds a special hidden command that can be used to request custom completions.
+func (c *Command) initCompleteCmd(args []string) {
+	completeCmd := &Command{
+		Use:                   fmt.Sprintf("%s [command-line]", ShellCompRequestCmd),
+		Aliases:               []string{ShellCompNoDescRequestCmd},
+		DisableFlagsInUseLine: true,
+		Hidden:                true,
+		DisableFlagParsing:    true,
+		Args:                  MinimumNArgs(1),
+		Short:                 "Request shell completion choices for the specified command-line",
+		Long: fmt.Sprintf("%[2]s is a special command that is used by the shell completion logic\n%[1]s",
+			"to request completion choices for the specified command-line.", ShellCompRequestCmd),
+		Run: func(cmd *Command, args []string) {
+			finalCmd, completions, directive, err := cmd.getCompletions(args)
+			if err != nil {
+				CompErrorln(err.Error())
+				// Keep going for multiple reasons:
+				// 1- There could be some valid completions even though there was an error
+				// 2- Even without completions, we need to print the directive
+			}
+
+			noDescriptions := (cmd.CalledAs() == ShellCompNoDescRequestCmd)
+			for _, comp := range completions {
+				if GetActiveHelpConfig(finalCmd) == activeHelpGlobalDisable {
+					// Remove all activeHelp entries in this case
+					if strings.HasPrefix(comp, activeHelpMarker) {
+						continue
+					}
+				}
+				if noDescriptions {
+					// Remove any description that may be included following a tab character.
+					comp = strings.Split(comp, "\t")[0]
+				}
+
+				// Make sure we only write the first line to the output.
+				// This is needed if a description contains a linebreak.
+				// Otherwise the shell scripts will interpret the other lines as new flags
+				// and could therefore provide a wrong completion.
+				comp = strings.Split(comp, "\n")[0]
+
+				// Finally trim the completion.  This is especially important to get rid
+				// of a trailing tab when there are no description following it.
+				// For example, a sub-command without a description should not be completed
+				// with a tab at the end (or else zsh will show a -- following it
+				// although there is no description).
+				comp = strings.TrimSpace(comp)
+
+				// Print each possible completion to stdout for the completion script to consume.
+				fmt.Fprintln(finalCmd.OutOrStdout(), comp)
+			}
+
+			// As the last printout, print the completion directive for the completion script to parse.
+			// The directive integer must be that last character following a single colon (:).
+			// The completion script expects :<directive>
+			fmt.Fprintf(finalCmd.OutOrStdout(), ":%d\n", directive)
+
+			// Print some helpful info to stderr for the user to understand.
+			// Output from stderr must be ignored by the completion script.
+			fmt.Fprintf(finalCmd.ErrOrStderr(), "Completion ended with directive: %s\n", directive.string())
+		},
+	}
+	c.AddCommand(completeCmd)
+	subCmd, _, err := c.Find(args)
+	if err != nil || subCmd.Name() != ShellCompRequestCmd {
+		// Only create this special command if it is actually being called.
+		// This reduces possible side-effects of creating such a command;
+		// for example, having this command would cause problems to a
+		// cobra program that only consists of the root command, since this
+		// command would cause the root command to suddenly have a subcommand.
+		c.RemoveCommand(completeCmd)
+	}
+}
+
+func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDirective, error) {
+	// The last argument, which is not completely typed by the user,
+	// should not be part of the list of arguments
+	toComplete := args[len(args)-1]
+	trimmedArgs := args[:len(args)-1]
+
+	var finalCmd *Command
+	var finalArgs []string
+	var err error
+	// Find the real command for which completion must be performed
+	// check if we need to traverse here to parse local flags on parent commands
+	if c.Root().TraverseChildren {
+		finalCmd, finalArgs, err = c.Root().Traverse(trimmedArgs)
+	} else {
+		// For Root commands that don't specify any value for their Args fields, when we call
+		// Find(), if those Root commands don't have any sub-commands, they will accept arguments.
+		// However, because we have added the __complete sub-command in the current code path, the
+		// call to Find() -> legacyArgs() will return an error if there are any arguments.
+		// To avoid this, we first remove the __complete command to get back to having no sub-commands.
+		rootCmd := c.Root()
+		if len(rootCmd.Commands()) == 1 {
+			rootCmd.RemoveCommand(c)
+		}
+
+		finalCmd, finalArgs, err = rootCmd.Find(trimmedArgs)
+	}
+	if err != nil {
+		// Unable to find the real command. E.g., <program> someInvalidCmd <TAB>
+		return c, []string{}, ShellCompDirectiveDefault, fmt.Errorf("Unable to find a command for arguments: %v", trimmedArgs)
+	}
+	finalCmd.ctx = c.ctx
+
+	// These flags are normally added when `execute()` is called on `finalCmd`,
+	// however, when doing completion, we don't call `finalCmd.execute()`.
+	// Let's add the --help and --version flag ourselves.
+	finalCmd.InitDefaultHelpFlag()
+	finalCmd.InitDefaultVersionFlag()
+
+	// Check if we are doing flag value completion before parsing the flags.
+	// This is important because if we are completing a flag value, we need to also
+	// remove the flag name argument from the list of finalArgs or else the parsing
+	// could fail due to an invalid value (incomplete) for the flag.
+	flag, finalArgs, toComplete, flagErr := checkIfFlagCompletion(finalCmd, finalArgs, toComplete)
+
+	// Check if interspersed is false or -- was set on a previous arg.
+	// This works by counting the arguments. Normally -- is not counted as arg but
+	// if -- was already set or interspersed is false and there is already one arg then
+	// the extra added -- is counted as arg.
+	flagCompletion := true
+	_ = finalCmd.ParseFlags(append(finalArgs, "--"))
+	newArgCount := finalCmd.Flags().NArg()
+
+	// Parse the flags early so we can check if required flags are set
+	if err = finalCmd.ParseFlags(finalArgs); err != nil {
+		return finalCmd, []string{}, ShellCompDirectiveDefault, fmt.Errorf("Error while parsing flags from args %v: %s", finalArgs, err.Error())
+	}
+
+	realArgCount := finalCmd.Flags().NArg()
+	if newArgCount > realArgCount {
+		// don't do flag completion (see above)
+		flagCompletion = false
+	}
+	// Error while attempting to parse flags
+	if flagErr != nil {
+		// If error type is flagCompError and we don't want flagCompletion we should ignore the error
+		if _, ok := flagErr.(*flagCompError); !(ok && !flagCompletion) {
+			return finalCmd, []string{}, ShellCompDirectiveDefault, flagErr
+		}
+	}
+
+	// Look for the --help or --version flags.  If they are present,
+	// there should be no further completions.
+	if helpOrVersionFlagPresent(finalCmd) {
+		return finalCmd, []string{}, ShellCompDirectiveNoFileComp, nil
+	}
+
+	// We only remove the flags from the arguments if DisableFlagParsing is not set.
+	// This is important for commands which have requested to do their own flag completion.
+	if !finalCmd.DisableFlagParsing {
+		finalArgs = finalCmd.Flags().Args()
+	}
+
+	if flag != nil && flagCompletion {
+		// Check if we are completing a flag value subject to annotations
+		if validExts, present := flag.Annotations[BashCompFilenameExt]; present {
+			if len(validExts) != 0 {
+				// File completion filtered by extensions
+				return finalCmd, validExts, ShellCompDirectiveFilterFileExt, nil
+			}
+
+			// The annotation requests simple file completion.  There is no reason to do
+			// that since it is the default behavior anyway.  Let's ignore this annotation
+			// in case the program also registered a completion function for this flag.
+			// Even though it is a mistake on the program's side, let's be nice when we can.
+		}
+
+		if subDir, present := flag.Annotations[BashCompSubdirsInDir]; present {
+			if len(subDir) == 1 {
+				// Directory completion from within a directory
+				return finalCmd, subDir, ShellCompDirectiveFilterDirs, nil
+			}
+			// Directory completion
+			return finalCmd, []string{}, ShellCompDirectiveFilterDirs, nil
+		}
+	}
+
+	var completions []string
+	var directive ShellCompDirective
+
+	// Enforce flag groups before doing flag completions
+	finalCmd.enforceFlagGroupsForCompletion()
+
+	// Note that we want to perform flagname completion even if finalCmd.DisableFlagParsing==true;
+	// doing this allows for completion of persistent flag names even for commands that disable flag parsing.
+	//
+	// When doing completion of a flag name, as soon as an argument starts with
+	// a '-' we know it is a flag.  We cannot use isFlagArg() here as it requires
+	// the flag name to be complete
+	if flag == nil && len(toComplete) > 0 && toComplete[0] == '-' && !strings.Contains(toComplete, "=") && flagCompletion {
+		// First check for required flags
+		completions = completeRequireFlags(finalCmd, toComplete)
+
+		// If we have not found any required flags, only then can we show regular flags
+		if len(completions) == 0 {
+			doCompleteFlags := func(flag *pflag.Flag) {
+				if !flag.Changed ||
+					strings.Contains(flag.Value.Type(), "Slice") ||
+					strings.Contains(flag.Value.Type(), "Array") {
+					// If the flag is not already present, or if it can be specified multiple times (Array or Slice)
+					// we suggest it as a completion
+					completions = append(completions, getFlagNameCompletions(flag, toComplete)...)
+				}
+			}
+
+			// We cannot use finalCmd.Flags() because we may not have called ParsedFlags() for commands
+			// that have set DisableFlagParsing; it is ParseFlags() that merges the inherited and
+			// non-inherited flags.
+			finalCmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) {
+				doCompleteFlags(flag)
+			})
+			finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
+				doCompleteFlags(flag)
+			})
+		}
+
+		directive = ShellCompDirectiveNoFileComp
+		if len(completions) == 1 && strings.HasSuffix(completions[0], "=") {
+			// If there is a single completion, the shell usually adds a space
+			// after the completion.  We don't want that if the flag ends with an =
+			directive = ShellCompDirectiveNoSpace
+		}
+
+		if !finalCmd.DisableFlagParsing {
+			// If DisableFlagParsing==false, we have completed the flags as known by Cobra;
+			// we can return what we found.
+			// If DisableFlagParsing==true, Cobra may not be aware of all flags, so we
+			// let the logic continue to see if ValidArgsFunction needs to be called.
+			return finalCmd, completions, directive, nil
+		}
+	} else {
+		directive = ShellCompDirectiveDefault
+		if flag == nil {
+			foundLocalNonPersistentFlag := false
+			// If TraverseChildren is true on the root command we don't check for
+			// local flags because we can use a local flag on a parent command
+			if !finalCmd.Root().TraverseChildren {
+				// Check if there are any local, non-persistent flags on the command-line
+				localNonPersistentFlags := finalCmd.LocalNonPersistentFlags()
+				finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
+					if localNonPersistentFlags.Lookup(flag.Name) != nil && flag.Changed {
+						foundLocalNonPersistentFlag = true
+					}
+				})
+			}
+
+			// Complete subcommand names, including the help command
+			if len(finalArgs) == 0 && !foundLocalNonPersistentFlag {
+				// We only complete sub-commands if:
+				// - there are no arguments on the command-line and
+				// - there are no local, non-persistent flags on the command-line or TraverseChildren is true
+				for _, subCmd := range finalCmd.Commands() {
+					if subCmd.IsAvailableCommand() || subCmd == finalCmd.helpCommand {
+						if strings.HasPrefix(subCmd.Name(), toComplete) {
+							completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short))
+						}
+						directive = ShellCompDirectiveNoFileComp
+					}
+				}
+			}
+
+			// Complete required flags even without the '-' prefix
+			completions = append(completions, completeRequireFlags(finalCmd, toComplete)...)
+
+			// Always complete ValidArgs, even if we are completing a subcommand name.
+			// This is for commands that have both subcommands and ValidArgs.
+			if len(finalCmd.ValidArgs) > 0 {
+				if len(finalArgs) == 0 {
+					// ValidArgs are only for the first argument
+					for _, validArg := range finalCmd.ValidArgs {
+						if strings.HasPrefix(validArg, toComplete) {
+							completions = append(completions, validArg)
+						}
+					}
+					directive = ShellCompDirectiveNoFileComp
+
+					// If no completions were found within commands or ValidArgs,
+					// see if there are any ArgAliases that should be completed.
+					if len(completions) == 0 {
+						for _, argAlias := range finalCmd.ArgAliases {
+							if strings.HasPrefix(argAlias, toComplete) {
+								completions = append(completions, argAlias)
+							}
+						}
+					}
+				}
+
+				// If there are ValidArgs specified (even if they don't match), we stop completion.
+				// Only one of ValidArgs or ValidArgsFunction can be used for a single command.
+				return finalCmd, completions, directive, nil
+			}
+
+			// Let the logic continue so as to add any ValidArgsFunction completions,
+			// even if we already found sub-commands.
+			// This is for commands that have subcommands but also specify a ValidArgsFunction.
+		}
+	}
+
+	// Find the completion function for the flag or command
+	var completionFn func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)
+	if flag != nil && flagCompletion {
+		flagCompletionMutex.RLock()
+		completionFn = flagCompletionFunctions[flag]
+		flagCompletionMutex.RUnlock()
+	} else {
+		completionFn = finalCmd.ValidArgsFunction
+	}
+	if completionFn != nil {
+		// Go custom completion defined for this flag or command.
+		// Call the registered completion function to get the completions.
+		var comps []string
+		comps, directive = completionFn(finalCmd, finalArgs, toComplete)
+		completions = append(completions, comps...)
+	}
+
+	return finalCmd, completions, directive, nil
+}
+
+func helpOrVersionFlagPresent(cmd *Command) bool {
+	if versionFlag := cmd.Flags().Lookup("version"); versionFlag != nil &&
+		len(versionFlag.Annotations[FlagSetByCobraAnnotation]) > 0 && versionFlag.Changed {
+		return true
+	}
+	if helpFlag := cmd.Flags().Lookup("help"); helpFlag != nil &&
+		len(helpFlag.Annotations[FlagSetByCobraAnnotation]) > 0 && helpFlag.Changed {
+		return true
+	}
+	return false
+}
+
+func getFlagNameCompletions(flag *pflag.Flag, toComplete string) []string {
+	if nonCompletableFlag(flag) {
+		return []string{}
+	}
+
+	var completions []string
+	flagName := "--" + flag.Name
+	if strings.HasPrefix(flagName, toComplete) {
+		// Flag without the =
+		completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage))
+
+		// Why suggest both long forms: --flag and --flag= ?
+		// This forces the user to *always* have to type either an = or a space after the flag name.
+		// Let's be nice and avoid making users have to do that.
+		// Since boolean flags and shortname flags don't show the = form, let's go that route and never show it.
+		// The = form will still work, we just won't suggest it.
+		// This also makes the list of suggested flags shorter as we avoid all the = forms.
+		//
+		// if len(flag.NoOptDefVal) == 0 {
+		// 	// Flag requires a value, so it can be suffixed with =
+		// 	flagName += "="
+		// 	completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage))
+		// }
+	}
+
+	flagName = "-" + flag.Shorthand
+	if len(flag.Shorthand) > 0 && strings.HasPrefix(flagName, toComplete) {
+		completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage))
+	}
+
+	return completions
+}
+
+func completeRequireFlags(finalCmd *Command, toComplete string) []string {
+	var completions []string
+
+	doCompleteRequiredFlags := func(flag *pflag.Flag) {
+		if _, present := flag.Annotations[BashCompOneRequiredFlag]; present {
+			if !flag.Changed {
+				// If the flag is not already present, we suggest it as a completion
+				completions = append(completions, getFlagNameCompletions(flag, toComplete)...)
+			}
+		}
+	}
+
+	// We cannot use finalCmd.Flags() because we may not have called ParsedFlags() for commands
+	// that have set DisableFlagParsing; it is ParseFlags() that merges the inherited and
+	// non-inherited flags.
+	finalCmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) {
+		doCompleteRequiredFlags(flag)
+	})
+	finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
+		doCompleteRequiredFlags(flag)
+	})
+
+	return completions
+}
+
+func checkIfFlagCompletion(finalCmd *Command, args []string, lastArg string) (*pflag.Flag, []string, string, error) {
+	if finalCmd.DisableFlagParsing {
+		// We only do flag completion if we are allowed to parse flags
+		// This is important for commands which have requested to do their own flag completion.
+		return nil, args, lastArg, nil
+	}
+
+	var flagName string
+	trimmedArgs := args
+	flagWithEqual := false
+	orgLastArg := lastArg
+
+	// When doing completion of a flag name, as soon as an argument starts with
+	// a '-' we know it is a flag.  We cannot use isFlagArg() here as that function
+	// requires the flag name to be complete
+	if len(lastArg) > 0 && lastArg[0] == '-' {
+		if index := strings.Index(lastArg, "="); index >= 0 {
+			// Flag with an =
+			if strings.HasPrefix(lastArg[:index], "--") {
+				// Flag has full name
+				flagName = lastArg[2:index]
+			} else {
+				// Flag is shorthand
+				// We have to get the last shorthand flag name
+				// e.g. `-asd` => d to provide the correct completion
+				// https://github.com/spf13/cobra/issues/1257
+				flagName = lastArg[index-1 : index]
+			}
+			lastArg = lastArg[index+1:]
+			flagWithEqual = true
+		} else {
+			// Normal flag completion
+			return nil, args, lastArg, nil
+		}
+	}
+
+	if len(flagName) == 0 {
+		if len(args) > 0 {
+			prevArg := args[len(args)-1]
+			if isFlagArg(prevArg) {
+				// Only consider the case where the flag does not contain an =.
+				// If the flag contains an = it means it has already been fully processed,
+				// so we don't need to deal with it here.
+				if index := strings.Index(prevArg, "="); index < 0 {
+					if strings.HasPrefix(prevArg, "--") {
+						// Flag has full name
+						flagName = prevArg[2:]
+					} else {
+						// Flag is shorthand
+						// We have to get the last shorthand flag name
+						// e.g. `-asd` => d to provide the correct completion
+						// https://github.com/spf13/cobra/issues/1257
+						flagName = prevArg[len(prevArg)-1:]
+					}
+					// Remove the uncompleted flag or else there could be an error created
+					// for an invalid value for that flag
+					trimmedArgs = args[:len(args)-1]
+				}
+			}
+		}
+	}
+
+	if len(flagName) == 0 {
+		// Not doing flag completion
+		return nil, trimmedArgs, lastArg, nil
+	}
+
+	flag := findFlag(finalCmd, flagName)
+	if flag == nil {
+		// Flag not supported by this command, the interspersed option might be set so return the original args
+		return nil, args, orgLastArg, &flagCompError{subCommand: finalCmd.Name(), flagName: flagName}
+	}
+
+	if !flagWithEqual {
+		if len(flag.NoOptDefVal) != 0 {
+			// We had assumed dealing with a two-word flag but the flag is a boolean flag.
+			// In that case, there is no value following it, so we are not really doing flag completion.
+			// Reset everything to do noun completion.
+			trimmedArgs = args
+			flag = nil
+		}
+	}
+
+	return flag, trimmedArgs, lastArg, nil
+}
+
+// InitDefaultCompletionCmd adds a default 'completion' command to c.
+// This function will do nothing if any of the following is true:
+// 1- the feature has been explicitly disabled by the program,
+// 2- c has no subcommands (to avoid creating one),
+// 3- c already has a 'completion' command provided by the program.
+func (c *Command) InitDefaultCompletionCmd() {
+	if c.CompletionOptions.DisableDefaultCmd || !c.HasSubCommands() {
+		return
+	}
+
+	for _, cmd := range c.commands {
+		if cmd.Name() == compCmdName || cmd.HasAlias(compCmdName) {
+			// A completion command is already available
+			return
+		}
+	}
+
+	haveNoDescFlag := !c.CompletionOptions.DisableNoDescFlag && !c.CompletionOptions.DisableDescriptions
+
+	completionCmd := &Command{
+		Use:   compCmdName,
+		Short: "Generate the autocompletion script for the specified shell",
+		Long: fmt.Sprintf(`Generate the autocompletion script for %[1]s for the specified shell.
+See each sub-command's help for details on how to use the generated script.
+`, c.Root().Name()),
+		Args:              NoArgs,
+		ValidArgsFunction: NoFileCompletions,
+		Hidden:            c.CompletionOptions.HiddenDefaultCmd,
+		GroupID:           c.completionCommandGroupID,
+	}
+	c.AddCommand(completionCmd)
+
+	out := c.OutOrStdout()
+	noDesc := c.CompletionOptions.DisableDescriptions
+	shortDesc := "Generate the autocompletion script for %s"
+	bash := &Command{
+		Use:   "bash",
+		Short: fmt.Sprintf(shortDesc, "bash"),
+		Long: fmt.Sprintf(`Generate the autocompletion script for the bash shell.
+
+This script depends on the 'bash-completion' package.
+If it is not installed already, you can install it via your OS's package manager.
+
+To load completions in your current shell session:
+
+	source <(%[1]s completion bash)
+
+To load completions for every new session, execute once:
+
+#### Linux:
+
+	%[1]s completion bash > /etc/bash_completion.d/%[1]s
+
+#### macOS:
+
+	%[1]s completion bash > $(brew --prefix)/etc/bash_completion.d/%[1]s
+
+You will need to start a new shell for this setup to take effect.
+`, c.Root().Name()),
+		Args:                  NoArgs,
+		DisableFlagsInUseLine: true,
+		ValidArgsFunction:     NoFileCompletions,
+		RunE: func(cmd *Command, args []string) error {
+			return cmd.Root().GenBashCompletionV2(out, !noDesc)
+		},
+	}
+	if haveNoDescFlag {
+		bash.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc)
+	}
+
+	zsh := &Command{
+		Use:   "zsh",
+		Short: fmt.Sprintf(shortDesc, "zsh"),
+		Long: fmt.Sprintf(`Generate the autocompletion script for the zsh shell.
+
+If shell completion is not already enabled in your environment you will need
+to enable it.  You can execute the following once:
+
+	echo "autoload -U compinit; compinit" >> ~/.zshrc
+
+To load completions in your current shell session:
+
+	source <(%[1]s completion zsh); compdef _%[1]s %[1]s
+
+To load completions for every new session, execute once:
+
+#### Linux:
+
+	%[1]s completion zsh > "${fpath[1]}/_%[1]s"
+
+#### macOS:
+
+	%[1]s completion zsh > $(brew --prefix)/share/zsh/site-functions/_%[1]s
+
+You will need to start a new shell for this setup to take effect.
+`, c.Root().Name()),
+		Args:              NoArgs,
+		ValidArgsFunction: NoFileCompletions,
+		RunE: func(cmd *Command, args []string) error {
+			if noDesc {
+				return cmd.Root().GenZshCompletionNoDesc(out)
+			}
+			return cmd.Root().GenZshCompletion(out)
+		},
+	}
+	if haveNoDescFlag {
+		zsh.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc)
+	}
+
+	fish := &Command{
+		Use:   "fish",
+		Short: fmt.Sprintf(shortDesc, "fish"),
+		Long: fmt.Sprintf(`Generate the autocompletion script for the fish shell.
+
+To load completions in your current shell session:
+
+	%[1]s completion fish | source
+
+To load completions for every new session, execute once:
+
+	%[1]s completion fish > ~/.config/fish/completions/%[1]s.fish
+
+You will need to start a new shell for this setup to take effect.
+`, c.Root().Name()),
+		Args:              NoArgs,
+		ValidArgsFunction: NoFileCompletions,
+		RunE: func(cmd *Command, args []string) error {
+			return cmd.Root().GenFishCompletion(out, !noDesc)
+		},
+	}
+	if haveNoDescFlag {
+		fish.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc)
+	}
+
+	powershell := &Command{
+		Use:   "powershell",
+		Short: fmt.Sprintf(shortDesc, "powershell"),
+		Long: fmt.Sprintf(`Generate the autocompletion script for powershell.
+
+To load completions in your current shell session:
+
+	%[1]s completion powershell | Out-String | Invoke-Expression
+
+To load completions for every new session, add the output of the above command
+to your powershell profile.
+`, c.Root().Name()),
+		Args:              NoArgs,
+		ValidArgsFunction: NoFileCompletions,
+		RunE: func(cmd *Command, args []string) error {
+			if noDesc {
+				return cmd.Root().GenPowerShellCompletion(out)
+			}
+			return cmd.Root().GenPowerShellCompletionWithDesc(out)
+
+		},
+	}
+	if haveNoDescFlag {
+		powershell.Flags().BoolVar(&noDesc, compCmdNoDescFlagName, compCmdNoDescFlagDefault, compCmdNoDescFlagDesc)
+	}
+
+	completionCmd.AddCommand(bash, zsh, fish, powershell)
+}
+
+func findFlag(cmd *Command, name string) *pflag.Flag {
+	flagSet := cmd.Flags()
+	if len(name) == 1 {
+		// First convert the short flag into a long flag
+		// as the cmd.Flag() search only accepts long flags
+		if short := flagSet.ShorthandLookup(name); short != nil {
+			name = short.Name
+		} else {
+			set := cmd.InheritedFlags()
+			if short = set.ShorthandLookup(name); short != nil {
+				name = short.Name
+			} else {
+				return nil
+			}
+		}
+	}
+	return cmd.Flag(name)
+}
+
+// CompDebug prints the specified string to the same file as where the
+// completion script prints its logs.
+// Note that completion printouts should never be on stdout as they would
+// be wrongly interpreted as actual completion choices by the completion script.
+func CompDebug(msg string, printToStdErr bool) {
+	msg = fmt.Sprintf("[Debug] %s", msg)
+
+	// Such logs are only printed when the user has set the environment
+	// variable BASH_COMP_DEBUG_FILE to the path of some file to be used.
+	if path := os.Getenv("BASH_COMP_DEBUG_FILE"); path != "" {
+		f, err := os.OpenFile(path,
+			os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
+		if err == nil {
+			defer f.Close()
+			WriteStringAndCheck(f, msg)
+		}
+	}
+
+	if printToStdErr {
+		// Must print to stderr for this not to be read by the completion script.
+		fmt.Fprint(os.Stderr, msg)
+	}
+}
+
+// CompDebugln prints the specified string with a newline at the end
+// to the same file as where the completion script prints its logs.
+// Such logs are only printed when the user has set the environment
+// variable BASH_COMP_DEBUG_FILE to the path of some file to be used.
+func CompDebugln(msg string, printToStdErr bool) {
+	CompDebug(fmt.Sprintf("%s\n", msg), printToStdErr)
+}
+
+// CompError prints the specified completion message to stderr.
+func CompError(msg string) {
+	msg = fmt.Sprintf("[Error] %s", msg)
+	CompDebug(msg, true)
+}
+
+// CompErrorln prints the specified completion message to stderr with a newline at the end.
+func CompErrorln(msg string) {
+	CompError(fmt.Sprintf("%s\n", msg))
+}

vendor/github.com/spf13/cobra/custom_completions.go

@@ -1,384 +0,0 @@
-package cobra
-
-import (
-	"errors"
-	"fmt"
-	"os"
-	"strings"
-
-	"github.com/spf13/pflag"
-)
-
-const (
-	// ShellCompRequestCmd is the name of the hidden command that is used to request
-	// completion results from the program.  It is used by the shell completion scripts.
-	ShellCompRequestCmd = "__complete"
-	// ShellCompNoDescRequestCmd is the name of the hidden command that is used to request
-	// completion results without their description.  It is used by the shell completion scripts.
-	ShellCompNoDescRequestCmd = "__completeNoDesc"
-)
-
-// Global map of flag completion functions.
-var flagCompletionFunctions = map[*pflag.Flag]func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective){}
-
-// ShellCompDirective is a bit map representing the different behaviors the shell
-// can be instructed to have once completions have been provided.
-type ShellCompDirective int
-
-const (
-	// ShellCompDirectiveError indicates an error occurred and completions should be ignored.
-	ShellCompDirectiveError ShellCompDirective = 1 << iota
-
-	// ShellCompDirectiveNoSpace indicates that the shell should not add a space
-	// after the completion even if there is a single completion provided.
-	ShellCompDirectiveNoSpace
-
-	// ShellCompDirectiveNoFileComp indicates that the shell should not provide
-	// file completion even when no completion is provided.
-	// This currently does not work for zsh or bash < 4
-	ShellCompDirectiveNoFileComp
-
-	// ShellCompDirectiveDefault indicates to let the shell perform its default
-	// behavior after completions have been provided.
-	ShellCompDirectiveDefault ShellCompDirective = 0
-)
-
-// RegisterFlagCompletionFunc should be called to register a function to provide completion for a flag.
-func (c *Command) RegisterFlagCompletionFunc(flagName string, f func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)) error {
-	flag := c.Flag(flagName)
-	if flag == nil {
-		return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' does not exist", flagName)
-	}
-	if _, exists := flagCompletionFunctions[flag]; exists {
-		return fmt.Errorf("RegisterFlagCompletionFunc: flag '%s' already registered", flagName)
-	}
-	flagCompletionFunctions[flag] = f
-	return nil
-}
-
-// Returns a string listing the different directive enabled in the specified parameter
-func (d ShellCompDirective) string() string {
-	var directives []string
-	if d&ShellCompDirectiveError != 0 {
-		directives = append(directives, "ShellCompDirectiveError")
-	}
-	if d&ShellCompDirectiveNoSpace != 0 {
-		directives = append(directives, "ShellCompDirectiveNoSpace")
-	}
-	if d&ShellCompDirectiveNoFileComp != 0 {
-		directives = append(directives, "ShellCompDirectiveNoFileComp")
-	}
-	if len(directives) == 0 {
-		directives = append(directives, "ShellCompDirectiveDefault")
-	}
-
-	if d > ShellCompDirectiveError+ShellCompDirectiveNoSpace+ShellCompDirectiveNoFileComp {
-		return fmt.Sprintf("ERROR: unexpected ShellCompDirective value: %d", d)
-	}
-	return strings.Join(directives, ", ")
-}
-
-// Adds a special hidden command that can be used to request custom completions.
-func (c *Command) initCompleteCmd(args []string) {
-	completeCmd := &Command{
-		Use:                   fmt.Sprintf("%s [command-line]", ShellCompRequestCmd),
-		Aliases:               []string{ShellCompNoDescRequestCmd},
-		DisableFlagsInUseLine: true,
-		Hidden:                true,
-		DisableFlagParsing:    true,
-		Args:                  MinimumNArgs(1),
-		Short:                 "Request shell completion choices for the specified command-line",
-		Long: fmt.Sprintf("%[2]s is a special command that is used by the shell completion logic\n%[1]s",
-			"to request completion choices for the specified command-line.", ShellCompRequestCmd),
-		Run: func(cmd *Command, args []string) {
-			finalCmd, completions, directive, err := cmd.getCompletions(args)
-			if err != nil {
-				CompErrorln(err.Error())
-				// Keep going for multiple reasons:
-				// 1- There could be some valid completions even though there was an error
-				// 2- Even without completions, we need to print the directive
-			}
-
-			noDescriptions := (cmd.CalledAs() == ShellCompNoDescRequestCmd)
-			for _, comp := range completions {
-				if noDescriptions {
-					// Remove any description that may be included following a tab character.
-					comp = strings.Split(comp, "\t")[0]
-				}
-				// Print each possible completion to stdout for the completion script to consume.
-				fmt.Fprintln(finalCmd.OutOrStdout(), comp)
-			}
-
-			if directive > ShellCompDirectiveError+ShellCompDirectiveNoSpace+ShellCompDirectiveNoFileComp {
-				directive = ShellCompDirectiveDefault
-			}
-
-			// As the last printout, print the completion directive for the completion script to parse.
-			// The directive integer must be that last character following a single colon (:).
-			// The completion script expects :<directive>
-			fmt.Fprintf(finalCmd.OutOrStdout(), ":%d\n", directive)
-
-			// Print some helpful info to stderr for the user to understand.
-			// Output from stderr must be ignored by the completion script.
-			fmt.Fprintf(finalCmd.ErrOrStderr(), "Completion ended with directive: %s\n", directive.string())
-		},
-	}
-	c.AddCommand(completeCmd)
-	subCmd, _, err := c.Find(args)
-	if err != nil || subCmd.Name() != ShellCompRequestCmd {
-		// Only create this special command if it is actually being called.
-		// This reduces possible side-effects of creating such a command;
-		// for example, having this command would cause problems to a
-		// cobra program that only consists of the root command, since this
-		// command would cause the root command to suddenly have a subcommand.
-		c.RemoveCommand(completeCmd)
-	}
-}
-
-func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDirective, error) {
-	var completions []string
-
-	// The last argument, which is not completely typed by the user,
-	// should not be part of the list of arguments
-	toComplete := args[len(args)-1]
-	trimmedArgs := args[:len(args)-1]
-
-	// Find the real command for which completion must be performed
-	finalCmd, finalArgs, err := c.Root().Find(trimmedArgs)
-	if err != nil {
-		// Unable to find the real command. E.g., <program> someInvalidCmd <TAB>
-		return c, completions, ShellCompDirectiveDefault, fmt.Errorf("Unable to find a command for arguments: %v", trimmedArgs)
-	}
-
-	// When doing completion of a flag name, as soon as an argument starts with
-	// a '-' we know it is a flag.  We cannot use isFlagArg() here as it requires
-	// the flag to be complete
-	if len(toComplete) > 0 && toComplete[0] == '-' && !strings.Contains(toComplete, "=") {
-		// We are completing a flag name
-		finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
-			completions = append(completions, getFlagNameCompletions(flag, toComplete)...)
-		})
-		finalCmd.InheritedFlags().VisitAll(func(flag *pflag.Flag) {
-			completions = append(completions, getFlagNameCompletions(flag, toComplete)...)
-		})
-
-		directive := ShellCompDirectiveDefault
-		if len(completions) > 0 {
-			if strings.HasSuffix(completions[0], "=") {
-				directive = ShellCompDirectiveNoSpace
-			}
-		}
-		return finalCmd, completions, directive, nil
-	}
-
-	var flag *pflag.Flag
-	if !finalCmd.DisableFlagParsing {
-		// We only do flag completion if we are allowed to parse flags
-		// This is important for commands which have requested to do their own flag completion.
-		flag, finalArgs, toComplete, err = checkIfFlagCompletion(finalCmd, finalArgs, toComplete)
-		if err != nil {
-			// Error while attempting to parse flags
-			return finalCmd, completions, ShellCompDirectiveDefault, err
-		}
-	}
-
-	if flag == nil {
-		// Complete subcommand names
-		for _, subCmd := range finalCmd.Commands() {
-			if subCmd.IsAvailableCommand() && strings.HasPrefix(subCmd.Name(), toComplete) {
-				completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short))
-			}
-		}
-
-		if len(finalCmd.ValidArgs) > 0 {
-			// Always complete ValidArgs, even if we are completing a subcommand name.
-			// This is for commands that have both subcommands and ValidArgs.
-			for _, validArg := range finalCmd.ValidArgs {
-				if strings.HasPrefix(validArg, toComplete) {
-					completions = append(completions, validArg)
-				}
-			}
-
-			// If there are ValidArgs specified (even if they don't match), we stop completion.
-			// Only one of ValidArgs or ValidArgsFunction can be used for a single command.
-			return finalCmd, completions, ShellCompDirectiveNoFileComp, nil
-		}
-
-		// Always let the logic continue so as to add any ValidArgsFunction completions,
-		// even if we already found sub-commands.
-		// This is for commands that have subcommands but also specify a ValidArgsFunction.
-	}
-
-	// Parse the flags and extract the arguments to prepare for calling the completion function
-	if err = finalCmd.ParseFlags(finalArgs); err != nil {
-		return finalCmd, completions, ShellCompDirectiveDefault, fmt.Errorf("Error while parsing flags from args %v: %s", finalArgs, err.Error())
-	}
-
-	// We only remove the flags from the arguments if DisableFlagParsing is not set.
-	// This is important for commands which have requested to do their own flag completion.
-	if !finalCmd.DisableFlagParsing {
-		finalArgs = finalCmd.Flags().Args()
-	}
-
-	// Find the completion function for the flag or command
-	var completionFn func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)
-	if flag != nil {
-		completionFn = flagCompletionFunctions[flag]
-	} else {
-		completionFn = finalCmd.ValidArgsFunction
-	}
-	if completionFn == nil {
-		// Go custom completion not supported/needed for this flag or command
-		return finalCmd, completions, ShellCompDirectiveDefault, nil
-	}
-
-	// Call the registered completion function to get the completions
-	comps, directive := completionFn(finalCmd, finalArgs, toComplete)
-	completions = append(completions, comps...)
-	return finalCmd, completions, directive, nil
-}
-
-func getFlagNameCompletions(flag *pflag.Flag, toComplete string) []string {
-	if nonCompletableFlag(flag) {
-		return []string{}
-	}
-
-	var completions []string
-	flagName := "--" + flag.Name
-	if strings.HasPrefix(flagName, toComplete) {
-		// Flag without the =
-		completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage))
-
-		if len(flag.NoOptDefVal) == 0 {
-			// Flag requires a value, so it can be suffixed with =
-			flagName += "="
-			completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage))
-		}
-	}
-
-	flagName = "-" + flag.Shorthand
-	if len(flag.Shorthand) > 0 && strings.HasPrefix(flagName, toComplete) {
-		completions = append(completions, fmt.Sprintf("%s\t%s", flagName, flag.Usage))
-	}
-
-	return completions
-}
-
-func checkIfFlagCompletion(finalCmd *Command, args []string, lastArg string) (*pflag.Flag, []string, string, error) {
-	var flagName string
-	trimmedArgs := args
-	flagWithEqual := false
-	if isFlagArg(lastArg) {
-		if index := strings.Index(lastArg, "="); index >= 0 {
-			flagName = strings.TrimLeft(lastArg[:index], "-")
-			lastArg = lastArg[index+1:]
-			flagWithEqual = true
-		} else {
-			return nil, nil, "", errors.New("Unexpected completion request for flag")
-		}
-	}
-
-	if len(flagName) == 0 {
-		if len(args) > 0 {
-			prevArg := args[len(args)-1]
-			if isFlagArg(prevArg) {
-				// Only consider the case where the flag does not contain an =.
-				// If the flag contains an = it means it has already been fully processed,
-				// so we don't need to deal with it here.
-				if index := strings.Index(prevArg, "="); index < 0 {
-					flagName = strings.TrimLeft(prevArg, "-")
-
-					// Remove the uncompleted flag or else there could be an error created
-					// for an invalid value for that flag
-					trimmedArgs = args[:len(args)-1]
-				}
-			}
-		}
-	}
-
-	if len(flagName) == 0 {
-		// Not doing flag completion
-		return nil, trimmedArgs, lastArg, nil
-	}
-
-	flag := findFlag(finalCmd, flagName)
-	if flag == nil {
-		// Flag not supported by this command, nothing to complete
-		err := fmt.Errorf("Subcommand '%s' does not support flag '%s'", finalCmd.Name(), flagName)
-		return nil, nil, "", err
-	}
-
-	if !flagWithEqual {
-		if len(flag.NoOptDefVal) != 0 {
-			// We had assumed dealing with a two-word flag but the flag is a boolean flag.
-			// In that case, there is no value following it, so we are not really doing flag completion.
-			// Reset everything to do noun completion.
-			trimmedArgs = args
-			flag = nil
-		}
-	}
-
-	return flag, trimmedArgs, lastArg, nil
-}
-
-func findFlag(cmd *Command, name string) *pflag.Flag {
-	flagSet := cmd.Flags()
-	if len(name) == 1 {
-		// First convert the short flag into a long flag
-		// as the cmd.Flag() search only accepts long flags
-		if short := flagSet.ShorthandLookup(name); short != nil {
-			name = short.Name
-		} else {
-			set := cmd.InheritedFlags()
-			if short = set.ShorthandLookup(name); short != nil {
-				name = short.Name
-			} else {
-				return nil
-			}
-		}
-	}
-	return cmd.Flag(name)
-}
-
-// CompDebug prints the specified string to the same file as where the
-// completion script prints its logs.
-// Note that completion printouts should never be on stdout as they would
-// be wrongly interpreted as actual completion choices by the completion script.
-func CompDebug(msg string, printToStdErr bool) {
-	msg = fmt.Sprintf("[Debug] %s", msg)
-
-	// Such logs are only printed when the user has set the environment
-	// variable BASH_COMP_DEBUG_FILE to the path of some file to be used.
-	if path := os.Getenv("BASH_COMP_DEBUG_FILE"); path != "" {
-		f, err := os.OpenFile(path,
-			os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
-		if err == nil {
-			defer f.Close()
-			f.WriteString(msg)
-		}
-	}
-
-	if printToStdErr {
-		// Must print to stderr for this not to be read by the completion script.
-		fmt.Fprintf(os.Stderr, msg)
-	}
-}
-
-// CompDebugln prints the specified string with a newline at the end
-// to the same file as where the completion script prints its logs.
-// Such logs are only printed when the user has set the environment
-// variable BASH_COMP_DEBUG_FILE to the path of some file to be used.
-func CompDebugln(msg string, printToStdErr bool) {
-	CompDebug(fmt.Sprintf("%s\n", msg), printToStdErr)
-}
-
-// CompError prints the specified completion message to stderr.
-func CompError(msg string) {
-	msg = fmt.Sprintf("[Error] %s", msg)
-	CompDebug(msg, true)
-}
-
-// CompErrorln prints the specified completion message to stderr with a newline at the end.
-func CompErrorln(msg string) {
-	CompError(fmt.Sprintf("%s\n", msg))
-}

vendor/github.com/spf13/cobra/fish_completions.go

@@ -1,3 +1,17 @@
+// Copyright 2013-2022 The Cobra 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 cobra
 
 import (
@@ -5,48 +19,64 @@ import (
 	"fmt"
 	"io"
 	"os"
+	"strings"
 )
 
-func genFishComp(buf *bytes.Buffer, name string, includeDesc bool) {
+func genFishComp(buf io.StringWriter, name string, includeDesc bool) {
+	// Variables should not contain a '-' or ':' character
+	nameForVar := name
+	nameForVar = strings.ReplaceAll(nameForVar, "-", "_")
+	nameForVar = strings.ReplaceAll(nameForVar, ":", "_")
+
 	compCmd := ShellCompRequestCmd
 	if !includeDesc {
 		compCmd = ShellCompNoDescRequestCmd
 	}
-	buf.WriteString(fmt.Sprintf("# fish completion for %-36s -*- shell-script -*-\n", name))
+	WriteStringAndCheck(buf, fmt.Sprintf("# fish completion for %-36s -*- shell-script -*-\n", name))
-	buf.WriteString(fmt.Sprintf(`
+	WriteStringAndCheck(buf, fmt.Sprintf(`
 function __%[1]s_debug
-    set file "$BASH_COMP_DEBUG_FILE"
+    set -l file "$BASH_COMP_DEBUG_FILE"
     if test -n "$file"
         echo "$argv" >> $file
     end
 end
 
 function __%[1]s_perform_completion
-    __%[1]s_debug "Starting __%[1]s_perform_completion with: $argv"
+    __%[1]s_debug "Starting __%[1]s_perform_completion"
 
-    set args (string split -- " " "$argv")
+    # Extract all args except the last one
-    set lastArg "$args[-1]"
+    set -l args (commandline -opc)
+    # Extract the last arg and escape it in case it is a space
+    set -l lastArg (string escape -- (commandline -ct))
 
     __%[1]s_debug "args: $args"
     __%[1]s_debug "last arg: $lastArg"
 
-    set emptyArg ""
+    # Disable ActiveHelp which is not supported for fish shell
-    if test -z "$lastArg"
+    set -l requestComp "%[9]s=0 $args[1] %[3]s $args[2..-1] $lastArg"
-        __%[1]s_debug "Setting emptyArg"
-        set emptyArg \"\"
-    end
-    __%[1]s_debug "emptyArg: $emptyArg"
 
-    set requestComp "$args[1] %[2]s $args[2..-1] $emptyArg"
     __%[1]s_debug "Calling $requestComp"
+    set -l results (eval $requestComp 2> /dev/null)
 
-    set results (eval $requestComp 2> /dev/null)
+    # Some programs may output extra empty lines after the directive.
-    set comps $results[1..-2]
+    # Let's ignore them or else it will break completion.
-    set directiveLine $results[-1]
+    # Ref: https://github.com/spf13/cobra/issues/1279
+    for line in $results[-1..1]
+        if test (string trim -- $line) = ""
+            # Found an empty line, remove it
+            set results $results[1..-2]
+        else
+            # Found non-empty line, we have our proper output
+            break
+        end
+    end
+
+    set -l comps $results[1..-2]
+    set -l directiveLine $results[-1]
 
     # For Fish, when completing a flag with an = (e.g., <program> -n=<TAB>)
     # completions must be prefixed with the flag
-    set flagPrefix (string match -r -- '-.*=' "$lastArg")
+    set -l flagPrefix (string match -r -- '-.*=' "$lastArg")
 
     __%[1]s_debug "Comps: $comps"
     __%[1]s_debug "DirectiveLine: $directiveLine"
@@ -59,97 +89,129 @@ function __%[1]s_perform_completion
     printf "%%s\n" "$directiveLine"
 end
 
-# This function does three things:
+# This function does two things:
-# 1- Obtain the completions and store them in the global __%[1]s_comp_results
+# - Obtain the completions and store them in the global __%[1]s_comp_results
-# 2- Set the __%[1]s_comp_do_file_comp flag if file completion should be performed
+# - Return false if file completion should be performed
-#    and unset it otherwise
-# 3- Return true if the completion results are not empty
 function __%[1]s_prepare_completions
+    __%[1]s_debug ""
+    __%[1]s_debug "========= starting completion logic =========="
+
     # Start fresh
-    set --erase __%[1]s_comp_do_file_comp
     set --erase __%[1]s_comp_results
 
-    # Check if the command-line is already provided.  This is useful for testing.
+    set -l results (__%[1]s_perform_completion)
-    if not set --query __%[1]s_comp_commandLine
-        set __%[1]s_comp_commandLine (commandline)
-    end
-    __%[1]s_debug "commandLine is: $__%[1]s_comp_commandLine"
-
-    set results (__%[1]s_perform_completion "$__%[1]s_comp_commandLine")
-    set --erase __%[1]s_comp_commandLine
     __%[1]s_debug "Completion results: $results"
 
     if test -z "$results"
         __%[1]s_debug "No completion, probably due to a failure"
         # Might as well do file completion, in case it helps
-        set --global __%[1]s_comp_do_file_comp 1
+        return 1
-        return 0
     end
 
-    set directive (string sub --start 2 $results[-1])
+    set -l directive (string sub --start 2 $results[-1])
     set --global __%[1]s_comp_results $results[1..-2]
 
     __%[1]s_debug "Completions are: $__%[1]s_comp_results"
     __%[1]s_debug "Directive is: $directive"
 
+    set -l shellCompDirectiveError %[4]d
+    set -l shellCompDirectiveNoSpace %[5]d
+    set -l shellCompDirectiveNoFileComp %[6]d
+    set -l shellCompDirectiveFilterFileExt %[7]d
+    set -l shellCompDirectiveFilterDirs %[8]d
+
     if test -z "$directive"
         set directive 0
     end
 
-    set compErr (math (math --scale 0 $directive / %[3]d) %% 2)
+    set -l compErr (math (math --scale 0 $directive / $shellCompDirectiveError) %% 2)
     if test $compErr -eq 1
         __%[1]s_debug "Received error directive: aborting."
         # Might as well do file completion, in case it helps
-        set --global __%[1]s_comp_do_file_comp 1
+        return 1
-        return 0
     end
 
-    set nospace (math (math --scale 0 $directive / %[4]d) %% 2)
+    set -l filefilter (math (math --scale 0 $directive / $shellCompDirectiveFilterFileExt) %% 2)
-    set nofiles (math (math --scale 0 $directive / %[5]d) %% 2)
+    set -l dirfilter (math (math --scale 0 $directive / $shellCompDirectiveFilterDirs) %% 2)
+    if test $filefilter -eq 1; or test $dirfilter -eq 1
+        __%[1]s_debug "File extension filtering or directory filtering not supported"
+        # Do full file completion instead
+        return 1
+    end
+
+    set -l nospace (math (math --scale 0 $directive / $shellCompDirectiveNoSpace) %% 2)
+    set -l nofiles (math (math --scale 0 $directive / $shellCompDirectiveNoFileComp) %% 2)
 
     __%[1]s_debug "nospace: $nospace, nofiles: $nofiles"
 
-    # Important not to quote the variable for count to work
+    # If we want to prevent a space, or if file completion is NOT disabled,
-    set numComps (count $__%[1]s_comp_results)
+    # we need to count the number of valid completions.
-    __%[1]s_debug "numComps: $numComps"
+    # To do so, we will filter on prefix as the completions we have received
+    # may not already be filtered so as to allow fish to match on different
+    # criteria than the prefix.
+    if test $nospace -ne 0; or test $nofiles -eq 0
+        set -l prefix (commandline -t | string escape --style=regex)
+        __%[1]s_debug "prefix: $prefix"
 
-    if test $numComps -eq 1; and test $nospace -ne 0
+        set -l completions (string match -r -- "^$prefix.*" $__%[1]s_comp_results)
-        # To support the "nospace" directive we trick the shell
+        set --global __%[1]s_comp_results $completions
-        # by outputting an extra, longer completion.
+        __%[1]s_debug "Filtered completions are: $__%[1]s_comp_results"
-        __%[1]s_debug "Adding second completion to perform nospace directive"
+
-        set --append __%[1]s_comp_results $__%[1]s_comp_results[1].
+        # Important not to quote the variable for count to work
+        set -l numComps (count $__%[1]s_comp_results)
+        __%[1]s_debug "numComps: $numComps"
+
+        if test $numComps -eq 1; and test $nospace -ne 0
+            # We must first split on \t to get rid of the descriptions to be
+            # able to check what the actual completion will be.
+            # We don't need descriptions anyway since there is only a single
+            # real completion which the shell will expand immediately.
+            set -l split (string split --max 1 \t $__%[1]s_comp_results[1])
+
+            # Fish won't add a space if the completion ends with any
+            # of the following characters: @=/:.,
+            set -l lastChar (string sub -s -1 -- $split)
+            if not string match -r -q "[@=/:.,]" -- "$lastChar"
+                # In other cases, to support the "nospace" directive we trick the shell
+                # by outputting an extra, longer completion.
+                __%[1]s_debug "Adding second completion to perform nospace directive"
+                set --global __%[1]s_comp_results $split[1] $split[1].
+                __%[1]s_debug "Completions are now: $__%[1]s_comp_results"
+            end
+        end
+
+        if test $numComps -eq 0; and test $nofiles -eq 0
+            # To be consistent with bash and zsh, we only trigger file
+            # completion when there are no other completions
+            __%[1]s_debug "Requesting file completion"
+            return 1
+        end
     end
 
-    if test $numComps -eq 0; and test $nofiles -eq 0
+    return 0
-        __%[1]s_debug "Requesting file completion"
-        set --global __%[1]s_comp_do_file_comp 1
-    end
-
-    # If we don't want file completion, we must return true even if there
-    # are no completions found.  This is because fish will perform the last
-    # completion command, even if its condition is false, if no other
-    # completion command was triggered
-    return (not set --query __%[1]s_comp_do_file_comp)
 end
 
-# Remove any pre-existing completions for the program since we will be handling all of them
+# Since Fish completions are only loaded once the user triggers them, we trigger them ourselves
-# TODO this cleanup is not sufficient.  Fish completions are only loaded once the user triggers
+# so we can properly delete any completions provided by another script.
-# them, so the below deletion will not work as it is run too early.  What else can we do?
+# Only do this if the program can be found, or else fish may print some errors; besides,
-complete -c %[1]s -e
+# the existing completions will only be loaded if the program can be found.
+if type -q "%[2]s"
+    # The space after the program name is essential to trigger completion for the program
+    # and not completion of the program name itself.
+    # Also, we use '> /dev/null 2>&1' since '&>' is not supported in older versions of fish.
+    complete --do-complete "%[2]s " > /dev/null 2>&1
+end
 
-# The order in which the below two lines are defined is very important so that __%[1]s_prepare_completions
+# Remove any pre-existing completions for the program since we will be handling all of them.
-# is called first.  It is __%[1]s_prepare_completions that sets up the __%[1]s_comp_do_file_comp variable.
+complete -c %[2]s -e
-#
-# This completion will be run second as complete commands are added FILO.
-# It triggers file completion choices when __%[1]s_comp_do_file_comp is set.
-complete -c %[1]s -n 'set --query __%[1]s_comp_do_file_comp'
 
-# This completion will be run first as complete commands are added FILO.
+# The call to __%[1]s_prepare_completions will setup __%[1]s_comp_results
-# The call to __%[1]s_prepare_completions will setup both __%[1]s_comp_results abd __%[1]s_comp_do_file_comp.
+# which provides the program's completion choices.
-# It provides the program's completion choices.
+complete -c %[2]s -n '__%[1]s_prepare_completions' -f -a '$__%[1]s_comp_results'
-complete -c %[1]s -n '__%[1]s_prepare_completions' -f -a '$__%[1]s_comp_results'
 
-`, name, compCmd, ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp))
+`, nameForVar, name, compCmd,
+		ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
+		ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, activeHelpEnvVar(name)))
 }
 
 // GenFishCompletion generates fish completion file and writes to the passed writer.

vendor/github.com/spf13/cobra/fish_completions.md

@@ -1,7 +1,4 @@
-## Generating Fish Completions for your own cobra.Command
+## Generating Fish Completions For Your cobra.Command
 
-Cobra supports native Fish completions generated from the root `cobra.Command`.  You can use the `command.GenFishCompletion()` or `command.GenFishCompletionFile()` functions. You must provide these functions with a parameter indicating if the completions should be annotated with a description; Cobra will provide the description automatically based on usage information.  You can choose to make this option configurable by your users.
+Please refer to [Shell Completions](shell_completions.md) for details.
 
-### Limitations
-
-* Custom completions implemented using the `ValidArgsFunction` and `RegisterFlagCompletionFunc()` are supported automatically but the ones implemented in Bash scripting are not.

vendor/github.com/spf13/cobra/flag_groups.go

@@ -0,0 +1,224 @@
+// Copyright 2013-2022 The Cobra 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 cobra
+
+import (
+	"fmt"
+	"sort"
+	"strings"
+
+	flag "github.com/spf13/pflag"
+)
+
+const (
+	requiredAsGroup   = "cobra_annotation_required_if_others_set"
+	mutuallyExclusive = "cobra_annotation_mutually_exclusive"
+)
+
+// MarkFlagsRequiredTogether marks the given flags with annotations so that Cobra errors
+// if the command is invoked with a subset (but not all) of the given flags.
+func (c *Command) MarkFlagsRequiredTogether(flagNames ...string) {
+	c.mergePersistentFlags()
+	for _, v := range flagNames {
+		f := c.Flags().Lookup(v)
+		if f == nil {
+			panic(fmt.Sprintf("Failed to find flag %q and mark it as being required in a flag group", v))
+		}
+		if err := c.Flags().SetAnnotation(v, requiredAsGroup, append(f.Annotations[requiredAsGroup], strings.Join(flagNames, " "))); err != nil {
+			// Only errs if the flag isn't found.
+			panic(err)
+		}
+	}
+}
+
+// MarkFlagsMutuallyExclusive marks the given flags with annotations so that Cobra errors
+// if the command is invoked with more than one flag from the given set of flags.
+func (c *Command) MarkFlagsMutuallyExclusive(flagNames ...string) {
+	c.mergePersistentFlags()
+	for _, v := range flagNames {
+		f := c.Flags().Lookup(v)
+		if f == nil {
+			panic(fmt.Sprintf("Failed to find flag %q and mark it as being in a mutually exclusive flag group", v))
+		}
+		// Each time this is called is a single new entry; this allows it to be a member of multiple groups if needed.
+		if err := c.Flags().SetAnnotation(v, mutuallyExclusive, append(f.Annotations[mutuallyExclusive], strings.Join(flagNames, " "))); err != nil {
+			panic(err)
+		}
+	}
+}
+
+// ValidateFlagGroups validates the mutuallyExclusive/requiredAsGroup logic and returns the
+// first error encountered.
+func (c *Command) ValidateFlagGroups() error {
+	if c.DisableFlagParsing {
+		return nil
+	}
+
+	flags := c.Flags()
+
+	// groupStatus format is the list of flags as a unique ID,
+	// then a map of each flag name and whether it is set or not.
+	groupStatus := map[string]map[string]bool{}
+	mutuallyExclusiveGroupStatus := map[string]map[string]bool{}
+	flags.VisitAll(func(pflag *flag.Flag) {
+		processFlagForGroupAnnotation(flags, pflag, requiredAsGroup, groupStatus)
+		processFlagForGroupAnnotation(flags, pflag, mutuallyExclusive, mutuallyExclusiveGroupStatus)
+	})
+
+	if err := validateRequiredFlagGroups(groupStatus); err != nil {
+		return err
+	}
+	if err := validateExclusiveFlagGroups(mutuallyExclusiveGroupStatus); err != nil {
+		return err
+	}
+	return nil
+}
+
+func hasAllFlags(fs *flag.FlagSet, flagnames ...string) bool {
+	for _, fname := range flagnames {
+		f := fs.Lookup(fname)
+		if f == nil {
+			return false
+		}
+	}
+	return true
+}
+
+func processFlagForGroupAnnotation(flags *flag.FlagSet, pflag *flag.Flag, annotation string, groupStatus map[string]map[string]bool) {
+	groupInfo, found := pflag.Annotations[annotation]
+	if found {
+		for _, group := range groupInfo {
+			if groupStatus[group] == nil {
+				flagnames := strings.Split(group, " ")
+
+				// Only consider this flag group at all if all the flags are defined.
+				if !hasAllFlags(flags, flagnames...) {
+					continue
+				}
+
+				groupStatus[group] = map[string]bool{}
+				for _, name := range flagnames {
+					groupStatus[group][name] = false
+				}
+			}
+
+			groupStatus[group][pflag.Name] = pflag.Changed
+		}
+	}
+}
+
+func validateRequiredFlagGroups(data map[string]map[string]bool) error {
+	keys := sortedKeys(data)
+	for _, flagList := range keys {
+		flagnameAndStatus := data[flagList]
+
+		unset := []string{}
+		for flagname, isSet := range flagnameAndStatus {
+			if !isSet {
+				unset = append(unset, flagname)
+			}
+		}
+		if len(unset) == len(flagnameAndStatus) || len(unset) == 0 {
+			continue
+		}
+
+		// Sort values, so they can be tested/scripted against consistently.
+		sort.Strings(unset)
+		return fmt.Errorf("if any flags in the group [%v] are set they must all be set; missing %v", flagList, unset)
+	}
+
+	return nil
+}
+
+func validateExclusiveFlagGroups(data map[string]map[string]bool) error {
+	keys := sortedKeys(data)
+	for _, flagList := range keys {
+		flagnameAndStatus := data[flagList]
+		var set []string
+		for flagname, isSet := range flagnameAndStatus {
+			if isSet {
+				set = append(set, flagname)
+			}
+		}
+		if len(set) == 0 || len(set) == 1 {
+			continue
+		}
+
+		// Sort values, so they can be tested/scripted against consistently.
+		sort.Strings(set)
+		return fmt.Errorf("if any flags in the group [%v] are set none of the others can be; %v were all set", flagList, set)
+	}
+	return nil
+}
+
+func sortedKeys(m map[string]map[string]bool) []string {
+	keys := make([]string, len(m))
+	i := 0
+	for k := range m {
+		keys[i] = k
+		i++
+	}
+	sort.Strings(keys)
+	return keys
+}
+
+// enforceFlagGroupsForCompletion will do the following:
+// - when a flag in a group is present, other flags in the group will be marked required
+// - when a flag in a mutually exclusive group is present, other flags in the group will be marked as hidden
+// This allows the standard completion logic to behave appropriately for flag groups
+func (c *Command) enforceFlagGroupsForCompletion() {
+	if c.DisableFlagParsing {
+		return
+	}
+
+	flags := c.Flags()
+	groupStatus := map[string]map[string]bool{}
+	mutuallyExclusiveGroupStatus := map[string]map[string]bool{}
+	c.Flags().VisitAll(func(pflag *flag.Flag) {
+		processFlagForGroupAnnotation(flags, pflag, requiredAsGroup, groupStatus)
+		processFlagForGroupAnnotation(flags, pflag, mutuallyExclusive, mutuallyExclusiveGroupStatus)
+	})
+
+	// If a flag that is part of a group is present, we make all the other flags
+	// of that group required so that the shell completion suggests them automatically
+	for flagList, flagnameAndStatus := range groupStatus {
+		for _, isSet := range flagnameAndStatus {
+			if isSet {
+				// One of the flags of the group is set, mark the other ones as required
+				for _, fName := range strings.Split(flagList, " ") {
+					_ = c.MarkFlagRequired(fName)
+				}
+			}
+		}
+	}
+
+	// If a flag that is mutually exclusive to others is present, we hide the other
+	// flags of that group so the shell completion does not suggest them
+	for flagList, flagnameAndStatus := range mutuallyExclusiveGroupStatus {
+		for flagName, isSet := range flagnameAndStatus {
+			if isSet {
+				// One of the flags of the mutually exclusive group is set, mark the other ones as hidden
+				// Don't mark the flag that is already set as hidden because it may be an
+				// array or slice flag and therefore must continue being suggested
+				for _, fName := range strings.Split(flagList, " ") {
+					if fName != flagName {
+						flag := c.Flags().Lookup(fName)
+						flag.Hidden = true
+					}
+				}
+			}
+		}
+	}
+}

vendor/github.com/spf13/cobra/powershell_completions.go

@@ -1,6 +1,17 @@
-// PowerShell completions are based on the amazing work from clap:
+// Copyright 2013-2022 The Cobra Authors
-// https://github.com/clap-rs/clap/blob/3294d18efe5f264d12c9035f404c7d189d4824e1/src/completions/powershell.rs
 //
+// 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.
+
 // The generated scripts require PowerShell v5.0+ (which comes Windows 10, but
 // can be downloaded separately for windows 7 or 8.1).
 
@@ -12,89 +23,288 @@ import (
 	"io"
 	"os"
 	"strings"
-
-	"github.com/spf13/pflag"
 )
 
-var powerShellCompletionTemplate = `using namespace System.Management.Automation
+func genPowerShellComp(buf io.StringWriter, name string, includeDesc bool) {
-using namespace System.Management.Automation.Language
+	// Variables should not contain a '-' or ':' character
-Register-ArgumentCompleter -Native -CommandName '%s' -ScriptBlock {
+	nameForVar := name
-    param($wordToComplete, $commandAst, $cursorPosition)
+	nameForVar = strings.Replace(nameForVar, "-", "_", -1)
-    $commandElements = $commandAst.CommandElements
+	nameForVar = strings.Replace(nameForVar, ":", "_", -1)
-    $command = @(
+
-        '%s'
+	compCmd := ShellCompRequestCmd
-        for ($i = 1; $i -lt $commandElements.Count; $i++) {
+	if !includeDesc {
-            $element = $commandElements[$i]
+		compCmd = ShellCompNoDescRequestCmd
-            if ($element -isnot [StringConstantExpressionAst] -or
+	}
-                $element.StringConstantType -ne [StringConstantType]::BareWord -or
+	WriteStringAndCheck(buf, fmt.Sprintf(`# powershell completion for %-36[1]s -*- shell-script -*-
-                $element.Value.StartsWith('-')) {
+
-                break
+function __%[1]s_debug {
-            }
+    if ($env:BASH_COMP_DEBUG_FILE) {
-            $element.Value
+        "$args" | Out-File -Append -FilePath "$env:BASH_COMP_DEBUG_FILE"
+    }
+}
+
+filter __%[1]s_escapeStringWithSpecialChars {
+`+"    $_ -replace '\\s|#|@|\\$|;|,|''|\\{|\\}|\\(|\\)|\"|`|\\||<|>|&','`$&'"+`
+}
+
+[scriptblock]$__%[2]sCompleterBlock = {
+    param(
+            $WordToComplete,
+            $CommandAst,
+            $CursorPosition
+        )
+
+    # Get the current command line and convert into a string
+    $Command = $CommandAst.CommandElements
+    $Command = "$Command"
+
+    __%[1]s_debug ""
+    __%[1]s_debug "========= starting completion logic =========="
+    __%[1]s_debug "WordToComplete: $WordToComplete Command: $Command CursorPosition: $CursorPosition"
+
+    # The user could have moved the cursor backwards on the command-line.
+    # We need to trigger completion from the $CursorPosition location, so we need
+    # to truncate the command-line ($Command) up to the $CursorPosition location.
+    # Make sure the $Command is longer then the $CursorPosition before we truncate.
+    # This happens because the $Command does not include the last space.
+    if ($Command.Length -gt $CursorPosition) {
+        $Command=$Command.Substring(0,$CursorPosition)
+    }
+    __%[1]s_debug "Truncated command: $Command"
+
+    $ShellCompDirectiveError=%[4]d
+    $ShellCompDirectiveNoSpace=%[5]d
+    $ShellCompDirectiveNoFileComp=%[6]d
+    $ShellCompDirectiveFilterFileExt=%[7]d
+    $ShellCompDirectiveFilterDirs=%[8]d
+
+    # Prepare the command to request completions for the program.
+    # Split the command at the first space to separate the program and arguments.
+    $Program,$Arguments = $Command.Split(" ",2)
+
+    $RequestComp="$Program %[3]s $Arguments"
+    __%[1]s_debug "RequestComp: $RequestComp"
+
+    # we cannot use $WordToComplete because it
+    # has the wrong values if the cursor was moved
+    # so use the last argument
+    if ($WordToComplete -ne "" ) {
+        $WordToComplete = $Arguments.Split(" ")[-1]
+    }
+    __%[1]s_debug "New WordToComplete: $WordToComplete"
+
+
+    # Check for flag with equal sign
+    $IsEqualFlag = ($WordToComplete -Like "--*=*" )
+    if ( $IsEqualFlag ) {
+        __%[1]s_debug "Completing equal sign flag"
+        # Remove the flag part
+        $Flag,$WordToComplete = $WordToComplete.Split("=",2)
+    }
+
+    if ( $WordToComplete -eq "" -And ( -Not $IsEqualFlag )) {
+        # If the last parameter is complete (there is a space following it)
+        # We add an extra empty parameter so we can indicate this to the go method.
+        __%[1]s_debug "Adding extra empty parameter"
+`+"        # We need to use `\"`\" to pass an empty argument a \"\" or '' does not work!!!"+`
+`+"        $RequestComp=\"$RequestComp\" + ' `\"`\"'"+`
+    }
+
+    __%[1]s_debug "Calling $RequestComp"
+    # First disable ActiveHelp which is not supported for Powershell
+    $env:%[9]s=0
+
+    #call the command store the output in $out and redirect stderr and stdout to null
+    # $Out is an array contains each line per element
+    Invoke-Expression -OutVariable out "$RequestComp" 2>&1 | Out-Null
+
+    # get directive from last line
+    [int]$Directive = $Out[-1].TrimStart(':')
+    if ($Directive -eq "") {
+        # There is no directive specified
+        $Directive = 0
+    }
+    __%[1]s_debug "The completion directive is: $Directive"
+
+    # remove directive (last element) from out
+    $Out = $Out | Where-Object { $_ -ne $Out[-1] }
+    __%[1]s_debug "The completions are: $Out"
+
+    if (($Directive -band $ShellCompDirectiveError) -ne 0 ) {
+        # Error code.  No completion.
+        __%[1]s_debug "Received error from custom completion go code"
+        return
+    }
+
+    $Longest = 0
+    $Values = $Out | ForEach-Object {
+        #Split the output in name and description
+`+"        $Name, $Description = $_.Split(\"`t\",2)"+`
+        __%[1]s_debug "Name: $Name Description: $Description"
+
+        # Look for the longest completion so that we can format things nicely
+        if ($Longest -lt $Name.Length) {
+            $Longest = $Name.Length
         }
-    ) -join ';'
-    $completions = @(switch ($command) {%s
-    })
-    $completions.Where{ $_.CompletionText -like "$wordToComplete*" } |
-        Sort-Object -Property ListItemText
-}`
 
-func generatePowerShellSubcommandCases(out io.Writer, cmd *Command, previousCommandName string) {
+        # Set the description to a one space string if there is none set.
-	var cmdName string
+        # This is needed because the CompletionResult does not accept an empty string as argument
-	if previousCommandName == "" {
+        if (-Not $Description) {
-		cmdName = cmd.Name()
+            $Description = " "
-	} else {
+        }
-		cmdName = fmt.Sprintf("%s;%s", previousCommandName, cmd.Name())
+        @{Name="$Name";Description="$Description"}
-	}
+    }
 
-	fmt.Fprintf(out, "\n        '%s' {", cmdName)
 
-	cmd.Flags().VisitAll(func(flag *pflag.Flag) {
+    $Space = " "
-		if nonCompletableFlag(flag) {
+    if (($Directive -band $ShellCompDirectiveNoSpace) -ne 0 ) {
-			return
+        # remove the space here
-		}
+        __%[1]s_debug "ShellCompDirectiveNoSpace is called"
-		usage := escapeStringForPowerShell(flag.Usage)
+        $Space = ""
-		if len(flag.Shorthand) > 0 {
+    }
-			fmt.Fprintf(out, "\n            [CompletionResult]::new('-%s', '%s', [CompletionResultType]::ParameterName, '%s')", flag.Shorthand, flag.Shorthand, usage)
-		}
-		fmt.Fprintf(out, "\n            [CompletionResult]::new('--%s', '%s', [CompletionResultType]::ParameterName, '%s')", flag.Name, flag.Name, usage)
-	})
 
-	for _, subCmd := range cmd.Commands() {
+    if ((($Directive -band $ShellCompDirectiveFilterFileExt) -ne 0 ) -or
-		usage := escapeStringForPowerShell(subCmd.Short)
+       (($Directive -band $ShellCompDirectiveFilterDirs) -ne 0 ))  {
-		fmt.Fprintf(out, "\n            [CompletionResult]::new('%s', '%s', [CompletionResultType]::ParameterValue, '%s')", subCmd.Name(), subCmd.Name(), usage)
+        __%[1]s_debug "ShellCompDirectiveFilterFileExt ShellCompDirectiveFilterDirs are not supported"
-	}
 
-	fmt.Fprint(out, "\n            break\n        }")
+        # return here to prevent the completion of the extensions
+        return
+    }
 
-	for _, subCmd := range cmd.Commands() {
+    $Values = $Values | Where-Object {
-		generatePowerShellSubcommandCases(out, subCmd, cmdName)
+        # filter the result
-	}
+        $_.Name -like "$WordToComplete*"
+
+        # Join the flag back if we have an equal sign flag
+        if ( $IsEqualFlag ) {
+            __%[1]s_debug "Join the equal sign flag back to the completion value"
+            $_.Name = $Flag + "=" + $_.Name
+        }
+    }
+
+    if (($Directive -band $ShellCompDirectiveNoFileComp) -ne 0 ) {
+        __%[1]s_debug "ShellCompDirectiveNoFileComp is called"
+
+        if ($Values.Length -eq 0) {
+            # Just print an empty string here so the
+            # shell does not start to complete paths.
+            # We cannot use CompletionResult here because
+            # it does not accept an empty string as argument.
+            ""
+            return
+        }
+    }
+
+    # Get the current mode
+    $Mode = (Get-PSReadLineKeyHandler | Where-Object {$_.Key -eq "Tab" }).Function
+    __%[1]s_debug "Mode: $Mode"
+
+    $Values | ForEach-Object {
+
+        # store temporary because switch will overwrite $_
+        $comp = $_
+
+        # PowerShell supports three different completion modes
+        # - TabCompleteNext (default windows style - on each key press the next option is displayed)
+        # - Complete (works like bash)
+        # - MenuComplete (works like zsh)
+        # You set the mode with Set-PSReadLineKeyHandler -Key Tab -Function <mode>
+
+        # CompletionResult Arguments:
+        # 1) CompletionText text to be used as the auto completion result
+        # 2) ListItemText   text to be displayed in the suggestion list
+        # 3) ResultType     type of completion result
+        # 4) ToolTip        text for the tooltip with details about the object
+
+        switch ($Mode) {
+
+            # bash like
+            "Complete" {
+
+                if ($Values.Length -eq 1) {
+                    __%[1]s_debug "Only one completion left"
+
+                    # insert space after value
+                    [System.Management.Automation.CompletionResult]::new($($comp.Name | __%[1]s_escapeStringWithSpecialChars) + $Space, "$($comp.Name)", 'ParameterValue', "$($comp.Description)")
+
+                } else {
+                    # Add the proper number of spaces to align the descriptions
+                    while($comp.Name.Length -lt $Longest) {
+                        $comp.Name = $comp.Name + " "
+                    }
+
+                    # Check for empty description and only add parentheses if needed
+                    if ($($comp.Description) -eq " " ) {
+                        $Description = ""
+                    } else {
+                        $Description = "  ($($comp.Description))"
+                    }
+
+                    [System.Management.Automation.CompletionResult]::new("$($comp.Name)$Description", "$($comp.Name)$Description", 'ParameterValue', "$($comp.Description)")
+                }
+             }
+
+            # zsh like
+            "MenuComplete" {
+                # insert space after value
+                # MenuComplete will automatically show the ToolTip of
+                # the highlighted value at the bottom of the suggestions.
+                [System.Management.Automation.CompletionResult]::new($($comp.Name | __%[1]s_escapeStringWithSpecialChars) + $Space, "$($comp.Name)", 'ParameterValue', "$($comp.Description)")
+            }
+
+            # TabCompleteNext and in case we get something unknown
+            Default {
+                # Like MenuComplete but we don't want to add a space here because
+                # the user need to press space anyway to get the completion.
+                # Description will not be shown because that's not possible with TabCompleteNext
+                [System.Management.Automation.CompletionResult]::new($($comp.Name | __%[1]s_escapeStringWithSpecialChars), "$($comp.Name)", 'ParameterValue', "$($comp.Description)")
+            }
+        }
+
+    }
 }
 
-func escapeStringForPowerShell(s string) string {
+Register-ArgumentCompleter -CommandName '%[1]s' -ScriptBlock $__%[2]sCompleterBlock
-	return strings.Replace(s, "'", "''", -1)
+`, name, nameForVar, compCmd,
+		ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
+		ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, activeHelpEnvVar(name)))
 }
 
-// GenPowerShellCompletion generates PowerShell completion file and writes to the passed writer.
+func (c *Command) genPowerShellCompletion(w io.Writer, includeDesc bool) error {
-func (c *Command) GenPowerShellCompletion(w io.Writer) error {
 	buf := new(bytes.Buffer)
-
+	genPowerShellComp(buf, c.Name(), includeDesc)
-	var subCommandCases bytes.Buffer
-	generatePowerShellSubcommandCases(&subCommandCases, c, "")
-	fmt.Fprintf(buf, powerShellCompletionTemplate, c.Name(), c.Name(), subCommandCases.String())
-
 	_, err := buf.WriteTo(w)
 	return err
 }
 
-// GenPowerShellCompletionFile generates PowerShell completion file.
+func (c *Command) genPowerShellCompletionFile(filename string, includeDesc bool) error {
-func (c *Command) GenPowerShellCompletionFile(filename string) error {
 	outFile, err := os.Create(filename)
 	if err != nil {
 		return err
 	}
 	defer outFile.Close()
 
-	return c.GenPowerShellCompletion(outFile)
+	return c.genPowerShellCompletion(outFile, includeDesc)
+}
+
+// GenPowerShellCompletionFile generates powershell completion file without descriptions.
+func (c *Command) GenPowerShellCompletionFile(filename string) error {
+	return c.genPowerShellCompletionFile(filename, false)
+}
+
+// GenPowerShellCompletion generates powershell completion file without descriptions
+// and writes it to the passed writer.
+func (c *Command) GenPowerShellCompletion(w io.Writer) error {
+	return c.genPowerShellCompletion(w, false)
+}
+
+// GenPowerShellCompletionFileWithDesc generates powershell completion file with descriptions.
+func (c *Command) GenPowerShellCompletionFileWithDesc(filename string) error {
+	return c.genPowerShellCompletionFile(filename, true)
+}
+
+// GenPowerShellCompletionWithDesc generates powershell completion file with descriptions
+// and writes it to the passed writer.
+func (c *Command) GenPowerShellCompletionWithDesc(w io.Writer) error {
+	return c.genPowerShellCompletion(w, true)
 }

vendor/github.com/spf13/cobra/powershell_completions.md

@@ -1,14 +1,3 @@
 # Generating PowerShell Completions For Your Own cobra.Command
 
-Cobra can generate PowerShell completion scripts. Users need PowerShell version 5.0 or above, which comes with Windows 10 and can be downloaded separately for Windows 7 or 8.1. They can then write the completions to a file and source this file from their PowerShell profile, which is referenced by the `$Profile` environment variable. See `Get-Help about_Profiles` for more info about PowerShell profiles.
+Please refer to [Shell Completions](shell_completions.md#powershell-completions) for details.
-
-# What's supported
-
-- Completion for subcommands using their `.Short` description
-- Completion for non-hidden flags using their `.Name` and `.Shorthand`
-
-# What's not yet supported
-
-- Command aliases
-- Required, filename or custom flags (they will work like normal flags)
-- Custom completion scripts

vendor/github.com/spf13/cobra/projects_using_cobra.md

@@ -0,0 +1,60 @@
+## Projects using Cobra
+
+- [Allero](https://github.com/allero-io/allero)
+- [Arduino CLI](https://github.com/arduino/arduino-cli)
+- [Bleve](https://blevesearch.com/)
+- [Cilium](https://cilium.io/)
+- [CloudQuery](https://github.com/cloudquery/cloudquery)
+- [CockroachDB](https://www.cockroachlabs.com/)
+- [Cosmos SDK](https://github.com/cosmos/cosmos-sdk)
+- [Datree](https://github.com/datreeio/datree)
+- [Delve](https://github.com/derekparker/delve)
+- [Docker (distribution)](https://github.com/docker/distribution)
+- [Etcd](https://etcd.io/)
+- [Gardener](https://github.com/gardener/gardenctl)
+- [Giant Swarm's gsctl](https://github.com/giantswarm/gsctl)
+- [Git Bump](https://github.com/erdaltsksn/git-bump)
+- [GitHub CLI](https://github.com/cli/cli)
+- [GitHub Labeler](https://github.com/erdaltsksn/gh-label)
+- [Golangci-lint](https://golangci-lint.run)
+- [GopherJS](https://github.com/gopherjs/gopherjs)
+- [GoReleaser](https://goreleaser.com)
+- [Helm](https://helm.sh)
+- [Hugo](https://gohugo.io)
+- [Infracost](https://github.com/infracost/infracost)
+- [Istio](https://istio.io)
+- [Kool](https://github.com/kool-dev/kool)
+- [Kubernetes](https://kubernetes.io/)
+- [Kubescape](https://github.com/armosec/kubescape)
+- [KubeVirt](https://github.com/kubevirt/kubevirt)
+- [Linkerd](https://linkerd.io/)
+- [Mattermost-server](https://github.com/mattermost/mattermost-server)
+- [Mercure](https://mercure.rocks/)
+- [Meroxa CLI](https://github.com/meroxa/cli)
+- [Metal Stack CLI](https://github.com/metal-stack/metalctl)
+- [Moby (former Docker)](https://github.com/moby/moby)
+- [Moldy](https://github.com/Moldy-Community/moldy)
+- [Multi-gitter](https://github.com/lindell/multi-gitter)
+- [Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack)
+- [nFPM](https://nfpm.goreleaser.com)
+- [Okteto](https://github.com/okteto/okteto)
+- [OpenShift](https://www.openshift.com/)
+- [Ory Hydra](https://github.com/ory/hydra)
+- [Ory Kratos](https://github.com/ory/kratos)
+- [Pixie](https://github.com/pixie-io/pixie)
+- [Polygon Edge](https://github.com/0xPolygon/polygon-edge)
+- [Pouch](https://github.com/alibaba/pouch)
+- [ProjectAtomic (enterprise)](https://www.projectatomic.io/)
+- [Prototool](https://github.com/uber/prototool)
+- [Pulumi](https://www.pulumi.com)
+- [QRcp](https://github.com/claudiodangelis/qrcp)
+- [Random](https://github.com/erdaltsksn/random)
+- [Rclone](https://rclone.org/)
+- [Scaleway CLI](https://github.com/scaleway/scaleway-cli)
+- [Skaffold](https://skaffold.dev/)
+- [Tendermint](https://github.com/tendermint/tendermint)
+- [Twitch CLI](https://github.com/twitchdev/twitch-cli)
+- [UpCloud CLI (`upctl`)](https://github.com/UpCloudLtd/upcloud-cli)
+- VMware's [Tanzu Community Edition](https://github.com/vmware-tanzu/community-edition) & [Tanzu Framework](https://github.com/vmware-tanzu/tanzu-framework)
+- [Werf](https://werf.io/)
+- [ZITADEL](https://github.com/zitadel/zitadel)

vendor/github.com/spf13/cobra/shell_completions.go

@@ -1,85 +1,98 @@
+// Copyright 2013-2022 The Cobra 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 cobra
 
 import (
 	"github.com/spf13/pflag"
 )
 
-// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag if it exists,
+// MarkFlagRequired instructs the various shell completion implementations to
+// prioritize the named flag when performing completion,
 // and causes your command to report an error if invoked without the flag.
 func (c *Command) MarkFlagRequired(name string) error {
 	return MarkFlagRequired(c.Flags(), name)
 }
 
-// MarkPersistentFlagRequired adds the BashCompOneRequiredFlag annotation to the named persistent flag if it exists,
+// MarkPersistentFlagRequired instructs the various shell completion implementations to
+// prioritize the named persistent flag when performing completion,
 // and causes your command to report an error if invoked without the flag.
 func (c *Command) MarkPersistentFlagRequired(name string) error {
 	return MarkFlagRequired(c.PersistentFlags(), name)
 }
 
-// MarkFlagRequired adds the BashCompOneRequiredFlag annotation to the named flag if it exists,
+// MarkFlagRequired instructs the various shell completion implementations to
+// prioritize the named flag when performing completion,
 // and causes your command to report an error if invoked without the flag.
 func MarkFlagRequired(flags *pflag.FlagSet, name string) error {
 	return flags.SetAnnotation(name, BashCompOneRequiredFlag, []string{"true"})
 }
 
-// MarkFlagFilename adds the BashCompFilenameExt annotation to the named flag, if it exists.
+// MarkFlagFilename instructs the various shell completion implementations to
-// Generated bash autocompletion will select filenames for the flag, limiting to named extensions if provided.
+// limit completions for the named flag to the specified file extensions.
 func (c *Command) MarkFlagFilename(name string, extensions ...string) error {
 	return MarkFlagFilename(c.Flags(), name, extensions...)
 }
 
 // MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists.
-// Generated bash autocompletion will call the bash function f for the flag.
+// The bash completion script will call the bash function f for the flag.
+//
+// This will only work for bash completion.
+// It is recommended to instead use c.RegisterFlagCompletionFunc(...) which allows
+// to register a Go function which will work across all shells.
 func (c *Command) MarkFlagCustom(name string, f string) error {
 	return MarkFlagCustom(c.Flags(), name, f)
 }
 
 // MarkPersistentFlagFilename instructs the various shell completion
-// implementations to limit completions for this persistent flag to the
+// implementations to limit completions for the named persistent flag to the
-// specified extensions (patterns).
+// specified file extensions.
-//
-// Shell Completion compatibility matrix: bash, zsh
 func (c *Command) MarkPersistentFlagFilename(name string, extensions ...string) error {
 	return MarkFlagFilename(c.PersistentFlags(), name, extensions...)
 }
 
 // MarkFlagFilename instructs the various shell completion implementations to
-// limit completions for this flag to the specified extensions (patterns).
+// limit completions for the named flag to the specified file extensions.
-//
-// Shell Completion compatibility matrix: bash, zsh
 func MarkFlagFilename(flags *pflag.FlagSet, name string, extensions ...string) error {
 	return flags.SetAnnotation(name, BashCompFilenameExt, extensions)
 }
 
-// MarkFlagCustom instructs the various shell completion implementations to
+// MarkFlagCustom adds the BashCompCustom annotation to the named flag, if it exists.
-// limit completions for this flag to the specified extensions (patterns).
+// The bash completion script will call the bash function f for the flag.
 //
-// Shell Completion compatibility matrix: bash, zsh
+// This will only work for bash completion.
+// It is recommended to instead use c.RegisterFlagCompletionFunc(...) which allows
+// to register a Go function which will work across all shells.
 func MarkFlagCustom(flags *pflag.FlagSet, name string, f string) error {
 	return flags.SetAnnotation(name, BashCompCustom, []string{f})
 }
 
 // MarkFlagDirname instructs the various shell completion implementations to
-// complete only directories with this named flag.
+// limit completions for the named flag to directory names.
-//
-// Shell Completion compatibility matrix: zsh
 func (c *Command) MarkFlagDirname(name string) error {
 	return MarkFlagDirname(c.Flags(), name)
 }
 
 // MarkPersistentFlagDirname instructs the various shell completion
-// implementations to complete only directories with this persistent named flag.
+// implementations to limit completions for the named persistent flag to
-//
+// directory names.
-// Shell Completion compatibility matrix: zsh
 func (c *Command) MarkPersistentFlagDirname(name string) error {
 	return MarkFlagDirname(c.PersistentFlags(), name)
 }
 
 // MarkFlagDirname instructs the various shell completion implementations to
-// complete only directories with this specified flag.
+// limit completions for the named flag to directory names.
-//
-// Shell Completion compatibility matrix: zsh
 func MarkFlagDirname(flags *pflag.FlagSet, name string) error {
-	zshPattern := "-(/)"
+	return flags.SetAnnotation(name, BashCompSubdirsInDir, []string{})
-	return flags.SetAnnotation(name, zshCompDirname, []string{zshPattern})
 }

vendor/github.com/spf13/cobra/shell_completions.md

@@ -0,0 +1,568 @@
+# Generating shell completions
+
+Cobra can generate shell completions for multiple shells.
+The currently supported shells are:
+- Bash
+- Zsh
+- fish
+- PowerShell
+
+Cobra will automatically provide your program with a fully functional `completion` command,
+similarly to how it provides the `help` command.
+
+## Creating your own completion command
+
+If you do not wish to use the default `completion` command, you can choose to
+provide your own, which will take precedence over the default one. (This also provides
+backwards-compatibility with programs that already have their own `completion` command.)
+
+If you are using the `cobra-cli` generator,
+which can be found at [spf13/cobra-cli](https://github.com/spf13/cobra-cli),
+you can create a completion command by running
+
+```bash
+cobra-cli add completion
+```
+and then modifying the generated `cmd/completion.go` file to look something like this
+(writing the shell script to stdout allows the most flexible use):
+
+```go
+var completionCmd = &cobra.Command{
+	Use:   "completion [bash|zsh|fish|powershell]",
+	Short: "Generate completion script",
+	Long: fmt.Sprintf(`To load completions:
+
+Bash:
+
+  $ source <(%[1]s completion bash)
+
+  # To load completions for each session, execute once:
+  # Linux:
+  $ %[1]s completion bash > /etc/bash_completion.d/%[1]s
+  # macOS:
+  $ %[1]s completion bash > $(brew --prefix)/etc/bash_completion.d/%[1]s
+
+Zsh:
+
+  # If shell completion is not already enabled in your environment,
+  # you will need to enable it.  You can execute the following once:
+
+  $ echo "autoload -U compinit; compinit" >> ~/.zshrc
+
+  # To load completions for each session, execute once:
+  $ %[1]s completion zsh > "${fpath[1]}/_%[1]s"
+
+  # You will need to start a new shell for this setup to take effect.
+
+fish:
+
+  $ %[1]s completion fish | source
+
+  # To load completions for each session, execute once:
+  $ %[1]s completion fish > ~/.config/fish/completions/%[1]s.fish
+
+PowerShell:
+
+  PS> %[1]s completion powershell | Out-String | Invoke-Expression
+
+  # To load completions for every new session, run:
+  PS> %[1]s completion powershell > %[1]s.ps1
+  # and source this file from your PowerShell profile.
+`,cmd.Root().Name()),
+	DisableFlagsInUseLine: true,
+	ValidArgs:             []string{"bash", "zsh", "fish", "powershell"},
+	Args:                  cobra.ExactValidArgs(1),
+	Run: func(cmd *cobra.Command, args []string) {
+		switch args[0] {
+		case "bash":
+			cmd.Root().GenBashCompletion(os.Stdout)
+		case "zsh":
+			cmd.Root().GenZshCompletion(os.Stdout)
+		case "fish":
+			cmd.Root().GenFishCompletion(os.Stdout, true)
+		case "powershell":
+			cmd.Root().GenPowerShellCompletionWithDesc(os.Stdout)
+		}
+	},
+}
+```
+
+**Note:** The cobra generator may include messages printed to stdout, for example, if the config file is loaded; this will break the auto-completion script so must be removed.
+
+## Adapting the default completion command
+
+Cobra provides a few options for the default `completion` command.  To configure such options you must set
+the `CompletionOptions` field on the *root* command.
+
+To tell Cobra *not* to provide the default `completion` command:
+```
+rootCmd.CompletionOptions.DisableDefaultCmd = true
+```
+
+To tell Cobra to mark the default `completion` command as *hidden*:
+```
+rootCmd.CompletionOptions.HiddenDefaultCmd = true
+```
+
+To tell Cobra *not* to provide the user with the `--no-descriptions` flag to the completion sub-commands:
+```
+rootCmd.CompletionOptions.DisableNoDescFlag = true
+```
+
+To tell Cobra to completely disable descriptions for completions:
+```
+rootCmd.CompletionOptions.DisableDescriptions = true
+```
+
+# Customizing completions
+
+The generated completion scripts will automatically handle completing commands and flags.  However, you can make your completions much more powerful by providing information to complete your program's nouns and flag values.
+
+## Completion of nouns
+
+### Static completion of nouns
+
+Cobra allows you to provide a pre-defined list of completion choices for your nouns using the `ValidArgs` field.
+For example, if you want `kubectl get [tab][tab]` to show a list of valid "nouns" you have to set them.
+Some simplified code from `kubectl get` looks like:
+
+```go
+validArgs = []string{ "pod", "node", "service", "replicationcontroller" }
+
+cmd := &cobra.Command{
+	Use:     "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)",
+	Short:   "Display one or many resources",
+	Long:    get_long,
+	Example: get_example,
+	Run: func(cmd *cobra.Command, args []string) {
+		cobra.CheckErr(RunGet(f, out, cmd, args))
+	},
+	ValidArgs: validArgs,
+}
+```
+
+Notice we put the `ValidArgs` field on the `get` sub-command. Doing so will give results like:
+
+```bash
+$ kubectl get [tab][tab]
+node   pod   replicationcontroller   service
+```
+
+#### Aliases for nouns
+
+If your nouns have aliases, you can define them alongside `ValidArgs` using `ArgAliases`:
+
+```go
+argAliases = []string { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" }
+
+cmd := &cobra.Command{
+    ...
+	ValidArgs:  validArgs,
+	ArgAliases: argAliases
+}
+```
+
+The aliases are not shown to the user on tab completion, but they are accepted as valid nouns by
+the completion algorithm if entered manually, e.g. in:
+
+```bash
+$ kubectl get rc [tab][tab]
+backend        frontend       database
+```
+
+Note that without declaring `rc` as an alias, the completion algorithm would not know to show the list of
+replication controllers following `rc`.
+
+### Dynamic completion of nouns
+
+In some cases it is not possible to provide a list of completions in advance.  Instead, the list of completions must be determined at execution-time. In a similar fashion as for static completions, you can use the `ValidArgsFunction` field to provide a Go function that Cobra will execute when it needs the list of completion choices for the nouns of a command.  Note that either `ValidArgs` or `ValidArgsFunction` can be used for a single cobra command, but not both.
+Simplified code from `helm status` looks like:
+
+```go
+cmd := &cobra.Command{
+	Use:   "status RELEASE_NAME",
+	Short: "Display the status of the named release",
+	Long:  status_long,
+	RunE: func(cmd *cobra.Command, args []string) {
+		RunGet(args[0])
+	},
+	ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+		if len(args) != 0 {
+			return nil, cobra.ShellCompDirectiveNoFileComp
+		}
+		return getReleasesFromCluster(toComplete), cobra.ShellCompDirectiveNoFileComp
+	},
+}
+```
+Where `getReleasesFromCluster()` is a Go function that obtains the list of current Helm releases running on the Kubernetes cluster.
+Notice we put the `ValidArgsFunction` on the `status` sub-command. Let's assume the Helm releases on the cluster are: `harbor`, `notary`, `rook` and `thanos` then this dynamic completion will give results like:
+
+```bash
+$ helm status [tab][tab]
+harbor notary rook thanos
+```
+You may have noticed the use of `cobra.ShellCompDirective`.  These directives are bit fields allowing to control some shell completion behaviors for your particular completion.  You can combine them with the bit-or operator such as `cobra.ShellCompDirectiveNoSpace | cobra.ShellCompDirectiveNoFileComp`
+```go
+// Indicates that the shell will perform its default behavior after completions
+// have been provided (this implies none of the other directives).
+ShellCompDirectiveDefault
+
+// Indicates an error occurred and completions should be ignored.
+ShellCompDirectiveError
+
+// Indicates that the shell should not add a space after the completion,
+// even if there is a single completion provided.
+ShellCompDirectiveNoSpace
+
+// Indicates that the shell should not provide file completion even when
+// no completion is provided.
+ShellCompDirectiveNoFileComp
+
+// Indicates that the returned completions should be used as file extension filters.
+// For example, to complete only files of the form *.json or *.yaml:
+//    return []string{"yaml", "json"}, ShellCompDirectiveFilterFileExt
+// For flags, using MarkFlagFilename() and MarkPersistentFlagFilename()
+// is a shortcut to using this directive explicitly.
+//
+ShellCompDirectiveFilterFileExt
+
+// Indicates that only directory names should be provided in file completion.
+// For example:
+//    return nil, ShellCompDirectiveFilterDirs
+// For flags, using MarkFlagDirname() is a shortcut to using this directive explicitly.
+//
+// To request directory names within another directory, the returned completions
+// should specify a single directory name within which to search. For example,
+// to complete directories within "themes/":
+//    return []string{"themes"}, ShellCompDirectiveFilterDirs
+//
+ShellCompDirectiveFilterDirs
+```
+
+***Note***: When using the `ValidArgsFunction`, Cobra will call your registered function after having parsed all flags and arguments provided in the command-line.  You therefore don't need to do this parsing yourself.  For example, when a user calls `helm status --namespace my-rook-ns [tab][tab]`, Cobra will call your registered `ValidArgsFunction` after having parsed the `--namespace` flag, as it would have done when calling the `RunE` function.
+
+#### Debugging
+
+Cobra achieves dynamic completion through the use of a hidden command called by the completion script.  To debug your Go completion code, you can call this hidden command directly:
+```bash
+$ helm __complete status har<ENTER>
+harbor
+:4
+Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr
+```
+***Important:*** If the noun to complete is empty (when the user has not yet typed any letters of that noun), you must pass an empty parameter to the `__complete` command:
+```bash
+$ helm __complete status ""<ENTER>
+harbor
+notary
+rook
+thanos
+:4
+Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr
+```
+Calling the `__complete` command directly allows you to run the Go debugger to troubleshoot your code.  You can also add printouts to your code; Cobra provides the following functions to use for printouts in Go completion code:
+```go
+// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE
+// is set to a file path) and optionally prints to stderr.
+cobra.CompDebug(msg string, printToStdErr bool) {
+cobra.CompDebugln(msg string, printToStdErr bool)
+
+// Prints to the completion script debug file (if BASH_COMP_DEBUG_FILE
+// is set to a file path) and to stderr.
+cobra.CompError(msg string)
+cobra.CompErrorln(msg string)
+```
+***Important:*** You should **not** leave traces that print directly to stdout in your completion code as they will be interpreted as completion choices by the completion script.  Instead, use the cobra-provided debugging traces functions mentioned above.
+
+## Completions for flags
+
+### Mark flags as required
+
+Most of the time completions will only show sub-commands. But if a flag is required to make a sub-command work, you probably want it to show up when the user types [tab][tab].  You can mark a flag as 'Required' like so:
+
+```go
+cmd.MarkFlagRequired("pod")
+cmd.MarkFlagRequired("container")
+```
+
+and you'll get something like
+
+```bash
+$ kubectl exec [tab][tab]
+-c            --container=  -p            --pod=
+```
+
+### Specify dynamic flag completion
+
+As for nouns, Cobra provides a way of defining dynamic completion of flags.  To provide a Go function that Cobra will execute when it needs the list of completion choices for a flag, you must register the function using the `command.RegisterFlagCompletionFunc()` function.
+
+```go
+flagName := "output"
+cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+	return []string{"json", "table", "yaml"}, cobra.ShellCompDirectiveDefault
+})
+```
+Notice that calling `RegisterFlagCompletionFunc()` is done through the `command` with which the flag is associated.  In our example this dynamic completion will give results like so:
+
+```bash
+$ helm status --output [tab][tab]
+json table yaml
+```
+
+#### Debugging
+
+You can also easily debug your Go completion code for flags:
+```bash
+$ helm __complete status --output ""
+json
+table
+yaml
+:4
+Completion ended with directive: ShellCompDirectiveNoFileComp # This is on stderr
+```
+***Important:*** You should **not** leave traces that print to stdout in your completion code as they will be interpreted as completion choices by the completion script.  Instead, use the cobra-provided debugging traces functions mentioned further above.
+
+### Specify valid filename extensions for flags that take a filename
+
+To limit completions of flag values to file names with certain extensions you can either use the different `MarkFlagFilename()` functions or a combination of `RegisterFlagCompletionFunc()` and `ShellCompDirectiveFilterFileExt`, like so:
+```go
+flagName := "output"
+cmd.MarkFlagFilename(flagName, "yaml", "json")
+```
+or
+```go
+flagName := "output"
+cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+	return []string{"yaml", "json"}, ShellCompDirectiveFilterFileExt})
+```
+
+### Limit flag completions to directory names
+
+To limit completions of flag values to directory names you can either use the `MarkFlagDirname()` functions or a combination of `RegisterFlagCompletionFunc()` and `ShellCompDirectiveFilterDirs`, like so:
+```go
+flagName := "output"
+cmd.MarkFlagDirname(flagName)
+```
+or
+```go
+flagName := "output"
+cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+	return nil, cobra.ShellCompDirectiveFilterDirs
+})
+```
+To limit completions of flag values to directory names *within another directory* you can use a combination of `RegisterFlagCompletionFunc()` and `ShellCompDirectiveFilterDirs` like so:
+```go
+flagName := "output"
+cmd.RegisterFlagCompletionFunc(flagName, func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+	return []string{"themes"}, cobra.ShellCompDirectiveFilterDirs
+})
+```
+### Descriptions for completions
+
+Cobra provides support for completion descriptions.  Such descriptions are supported for each shell
+(however, for bash, it is only available in the [completion V2 version](#bash-completion-v2)).
+For commands and flags, Cobra will provide the descriptions automatically, based on usage information.
+For example, using zsh:
+```
+$ helm s[tab]
+search  -- search for a keyword in charts
+show    -- show information of a chart
+status  -- displays the status of the named release
+```
+while using fish:
+```
+$ helm s[tab]
+search  (search for a keyword in charts)  show  (show information of a chart)  status  (displays the status of the named release)
+```
+
+Cobra allows you to add descriptions to your own completions.  Simply add the description text after each completion, following a `\t` separator.  This technique applies to completions returned by `ValidArgs`, `ValidArgsFunction` and `RegisterFlagCompletionFunc()`.  For example:
+```go
+ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
+	return []string{"harbor\tAn image registry", "thanos\tLong-term metrics"}, cobra.ShellCompDirectiveNoFileComp
+}}
+```
+or
+```go
+ValidArgs: []string{"bash\tCompletions for bash", "zsh\tCompletions for zsh"}
+```
+## Bash completions
+
+### Dependencies
+
+The bash completion script generated by Cobra requires the `bash_completion` package. You should update the help text of your completion command to show how to install the `bash_completion` package ([Kubectl docs](https://kubernetes.io/docs/tasks/tools/install-kubectl/#enabling-shell-autocompletion))
+
+### Aliases
+
+You can also configure `bash` aliases for your program and they will also support completions.
+
+```bash
+alias aliasname=origcommand
+complete -o default -F __start_origcommand aliasname
+
+# and now when you run `aliasname` completion will make
+# suggestions as it did for `origcommand`.
+
+$ aliasname <tab><tab>
+completion     firstcommand   secondcommand
+```
+### Bash legacy dynamic completions
+
+For backward compatibility, Cobra still supports its bash legacy dynamic completion solution.
+Please refer to [Bash Completions](bash_completions.md) for details.
+
+### Bash completion V2
+
+Cobra provides two versions for bash completion.  The original bash completion (which started it all!) can be used by calling
+`GenBashCompletion()` or `GenBashCompletionFile()`.
+
+A new V2 bash completion version is also available.  This version can be used by calling `GenBashCompletionV2()` or
+`GenBashCompletionFileV2()`.  The V2 version does **not** support the legacy dynamic completion
+(see [Bash Completions](bash_completions.md)) but instead works only with the Go dynamic completion
+solution described in this document.
+Unless your program already uses the legacy dynamic completion solution, it is recommended that you use the bash
+completion V2 solution which provides the following extra features:
+- Supports completion descriptions (like the other shells)
+- Small completion script of less than 300 lines (v1 generates scripts of thousands of lines; `kubectl` for example has a bash v1 completion script of over 13K lines)
+- Streamlined user experience thanks to a completion behavior aligned with the other shells 
+
+`Bash` completion V2 supports descriptions for completions. When calling `GenBashCompletionV2()` or `GenBashCompletionFileV2()`
+you must provide these functions with a parameter indicating if the completions should be annotated with a description; Cobra
+will provide the description automatically based on usage information.  You can choose to make this option configurable by
+your users.
+
+```
+# With descriptions
+$ helm s[tab][tab]
+search  (search for a keyword in charts)           status  (display the status of the named release)
+show    (show information of a chart)
+
+# Without descriptions
+$ helm s[tab][tab]
+search  show  status
+```
+**Note**: Cobra's default `completion` command uses bash completion V2.  If for some reason you need to use bash completion V1, you will need to implement your own `completion` command. 
+## Zsh completions
+
+Cobra supports native zsh completion generated from the root `cobra.Command`.
+The generated completion script should be put somewhere in your `$fpath` and be named
+`_<yourProgram>`.  You will need to start a new shell for the completions to become available.
+
+Zsh supports descriptions for completions. Cobra will provide the description automatically,
+based on usage information. Cobra provides a way to completely disable such descriptions by
+using `GenZshCompletionNoDesc()` or `GenZshCompletionFileNoDesc()`. You can choose to make
+this a configurable option to your users.
+```
+# With descriptions
+$ helm s[tab]
+search  -- search for a keyword in charts
+show    -- show information of a chart
+status  -- displays the status of the named release
+
+# Without descriptions
+$ helm s[tab]
+search  show  status
+```
+*Note*: Because of backward-compatibility requirements, we were forced to have a different API to disable completion descriptions between `zsh` and `fish`.
+
+### Limitations
+
+* Custom completions implemented in Bash scripting (legacy) are not supported and will be ignored for `zsh` (including the use of the `BashCompCustom` flag annotation).
+  * You should instead use `ValidArgsFunction` and `RegisterFlagCompletionFunc()` which are portable to the different shells (`bash`, `zsh`, `fish`, `powershell`).
+* The function `MarkFlagCustom()` is not supported and will be ignored for `zsh`.
+  * You should instead use `RegisterFlagCompletionFunc()`.
+
+### Zsh completions standardization
+
+Cobra 1.1 standardized its zsh completion support to align it with its other shell completions.  Although the API was kept backward-compatible, some small changes in behavior were introduced.
+Please refer to [Zsh Completions](zsh_completions.md) for details.
+
+## fish completions
+
+Cobra supports native fish completions generated from the root `cobra.Command`.  You can use the `command.GenFishCompletion()` or `command.GenFishCompletionFile()` functions. You must provide these functions with a parameter indicating if the completions should be annotated with a description; Cobra will provide the description automatically based on usage information.  You can choose to make this option configurable by your users.
+```
+# With descriptions
+$ helm s[tab]
+search  (search for a keyword in charts)  show  (show information of a chart)  status  (displays the status of the named release)
+
+# Without descriptions
+$ helm s[tab]
+search  show  status
+```
+*Note*: Because of backward-compatibility requirements, we were forced to have a different API to disable completion descriptions between `zsh` and `fish`.
+
+### Limitations
+
+* Custom completions implemented in bash scripting (legacy) are not supported and will be ignored for `fish` (including the use of the `BashCompCustom` flag annotation).
+  * You should instead use `ValidArgsFunction` and `RegisterFlagCompletionFunc()` which are portable to the different shells (`bash`, `zsh`, `fish`, `powershell`).
+* The function `MarkFlagCustom()` is not supported and will be ignored for `fish`.
+  * You should instead use `RegisterFlagCompletionFunc()`.
+* The following flag completion annotations are not supported and will be ignored for `fish`:
+  * `BashCompFilenameExt` (filtering by file extension)
+  * `BashCompSubdirsInDir` (filtering by directory)
+* The functions corresponding to the above annotations are consequently not supported and will be ignored for `fish`:
+  * `MarkFlagFilename()` and `MarkPersistentFlagFilename()` (filtering by file extension)
+  * `MarkFlagDirname()` and `MarkPersistentFlagDirname()` (filtering by directory)
+* Similarly, the following completion directives are not supported and will be ignored for `fish`:
+  * `ShellCompDirectiveFilterFileExt` (filtering by file extension)
+  * `ShellCompDirectiveFilterDirs` (filtering by directory)
+
+## PowerShell completions
+
+Cobra supports native PowerShell completions generated from the root `cobra.Command`. You can use the `command.GenPowerShellCompletion()` or `command.GenPowerShellCompletionFile()` functions. To include descriptions use `command.GenPowerShellCompletionWithDesc()` and `command.GenPowerShellCompletionFileWithDesc()`. Cobra will provide the description automatically based on usage information. You can choose to make this option configurable by your users.
+
+The script is designed to support all three PowerShell completion modes:
+
+* TabCompleteNext (default windows style - on each key press the next option is displayed)
+* Complete (works like bash)
+* MenuComplete (works like zsh)
+
+You set the mode with `Set-PSReadLineKeyHandler -Key Tab -Function <mode>`. Descriptions are only displayed when using the `Complete` or `MenuComplete` mode.
+
+Users need PowerShell version 5.0 or above, which comes with Windows 10 and can be downloaded separately for Windows 7 or 8.1. They can then write the completions to a file and source this file from their PowerShell profile, which is referenced by the `$Profile` environment variable. See `Get-Help about_Profiles` for more info about PowerShell profiles.
+
+```
+# With descriptions and Mode 'Complete'
+$ helm s[tab]
+search  (search for a keyword in charts)  show  (show information of a chart)  status  (displays the status of the named release)
+
+# With descriptions and Mode 'MenuComplete' The description of the current selected value will be displayed below the suggestions.
+$ helm s[tab]
+search    show     status  
+
+search for a keyword in charts
+
+# Without descriptions
+$ helm s[tab]
+search  show  status
+```
+### Aliases
+
+You can also configure `powershell` aliases for your program and they will also support completions.
+
+```
+$ sal aliasname origcommand
+$ Register-ArgumentCompleter -CommandName 'aliasname' -ScriptBlock $__origcommandCompleterBlock
+
+# and now when you run `aliasname` completion will make
+# suggestions as it did for `origcommand`.
+
+$ aliasname <tab>
+completion     firstcommand   secondcommand
+```
+The name of the completer block variable is of the form `$__<programName>CompleterBlock` where every `-` and `:` in the program name have been replaced with `_`, to respect powershell naming syntax.
+
+### Limitations
+
+* Custom completions implemented in bash scripting (legacy) are not supported and will be ignored for `powershell` (including the use of the `BashCompCustom` flag annotation).
+  * You should instead use `ValidArgsFunction` and `RegisterFlagCompletionFunc()` which are portable to the different shells (`bash`, `zsh`, `fish`, `powershell`).
+* The function `MarkFlagCustom()` is not supported and will be ignored for `powershell`.
+  * You should instead use `RegisterFlagCompletionFunc()`.
+* The following flag completion annotations are not supported and will be ignored for `powershell`:
+  * `BashCompFilenameExt` (filtering by file extension)
+  * `BashCompSubdirsInDir` (filtering by directory)
+* The functions corresponding to the above annotations are consequently not supported and will be ignored for `powershell`:
+  * `MarkFlagFilename()` and `MarkPersistentFlagFilename()` (filtering by file extension)
+  * `MarkFlagDirname()` and `MarkPersistentFlagDirname()` (filtering by directory)
+* Similarly, the following completion directives are not supported and will be ignored for `powershell`:
+  * `ShellCompDirectiveFilterFileExt` (filtering by file extension)
+  * `ShellCompDirectiveFilterDirs` (filtering by directory)

vendor/github.com/spf13/cobra/user_guide.md

@@ -0,0 +1,695 @@
+# User Guide
+
+While you are welcome to provide your own organization, typically a Cobra-based
+application will follow the following organizational structure:
+
+```
+  ▾ appName/
+    ▾ cmd/
+        add.go
+        your.go
+        commands.go
+        here.go
+      main.go
+```
+
+In a Cobra app, typically the main.go file is very bare. It serves one purpose: initializing Cobra.
+
+```go
+package main
+
+import (
+  "{pathToYourApp}/cmd"
+)
+
+func main() {
+  cmd.Execute()
+}
+```
+
+## Using the Cobra Generator
+
+Cobra-CLI is its own program that will create your application and add any
+commands you want. It's the easiest way to incorporate Cobra into your application.
+
+For complete details on using the Cobra generator, please refer to [The Cobra-CLI Generator README](https://github.com/spf13/cobra-cli/blob/main/README.md)
+
+## Using the Cobra Library
+
+To manually implement Cobra you need to create a bare main.go file and a rootCmd file.
+You will optionally provide additional commands as you see fit.
+
+### Create rootCmd
+
+Cobra doesn't require any special constructors. Simply create your commands.
+
+Ideally you place this in app/cmd/root.go:
+
+```go
+var rootCmd = &cobra.Command{
+  Use:   "hugo",
+  Short: "Hugo is a very fast static site generator",
+  Long: `A Fast and Flexible Static Site Generator built with
+                love by spf13 and friends in Go.
+                Complete documentation is available at https://gohugo.io/documentation/`,
+  Run: func(cmd *cobra.Command, args []string) {
+    // Do Stuff Here
+  },
+}
+
+func Execute() {
+  if err := rootCmd.Execute(); err != nil {
+    fmt.Fprintln(os.Stderr, err)
+    os.Exit(1)
+  }
+}
+```
+
+You will additionally define flags and handle configuration in your init() function.
+
+For example cmd/root.go:
+
+```go
+package cmd
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/viper"
+)
+
+var (
+	// Used for flags.
+	cfgFile     string
+	userLicense string
+
+	rootCmd = &cobra.Command{
+		Use:   "cobra-cli",
+		Short: "A generator for Cobra based Applications",
+		Long: `Cobra is a CLI library for Go that empowers applications.
+This application is a tool to generate the needed files
+to quickly create a Cobra application.`,
+	}
+)
+
+// Execute executes the root command.
+func Execute() error {
+	return rootCmd.Execute()
+}
+
+func init() {
+	cobra.OnInitialize(initConfig)
+
+	rootCmd.PersistentFlags().StringVar(&cfgFile, "config", "", "config file (default is $HOME/.cobra.yaml)")
+	rootCmd.PersistentFlags().StringP("author", "a", "YOUR NAME", "author name for copyright attribution")
+	rootCmd.PersistentFlags().StringVarP(&userLicense, "license", "l", "", "name of license for the project")
+	rootCmd.PersistentFlags().Bool("viper", true, "use Viper for configuration")
+	viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author"))
+	viper.BindPFlag("useViper", rootCmd.PersistentFlags().Lookup("viper"))
+	viper.SetDefault("author", "NAME HERE <EMAIL ADDRESS>")
+	viper.SetDefault("license", "apache")
+
+	rootCmd.AddCommand(addCmd)
+	rootCmd.AddCommand(initCmd)
+}
+
+func initConfig() {
+	if cfgFile != "" {
+		// Use config file from the flag.
+		viper.SetConfigFile(cfgFile)
+	} else {
+		// Find home directory.
+		home, err := os.UserHomeDir()
+		cobra.CheckErr(err)
+
+		// Search config in home directory with name ".cobra" (without extension).
+		viper.AddConfigPath(home)
+		viper.SetConfigType("yaml")
+		viper.SetConfigName(".cobra")
+	}
+
+	viper.AutomaticEnv()
+
+	if err := viper.ReadInConfig(); err == nil {
+		fmt.Println("Using config file:", viper.ConfigFileUsed())
+	}
+}
+```
+
+### Create your main.go
+
+With the root command you need to have your main function execute it.
+Execute should be run on the root for clarity, though it can be called on any command.
+
+In a Cobra app, typically the main.go file is very bare. It serves one purpose: to initialize Cobra.
+
+```go
+package main
+
+import (
+  "{pathToYourApp}/cmd"
+)
+
+func main() {
+  cmd.Execute()
+}
+```
+
+### Create additional commands
+
+Additional commands can be defined and typically are each given their own file
+inside of the cmd/ directory.
+
+If you wanted to create a version command you would create cmd/version.go and
+populate it with the following:
+
+```go
+package cmd
+
+import (
+  "fmt"
+
+  "github.com/spf13/cobra"
+)
+
+func init() {
+  rootCmd.AddCommand(versionCmd)
+}
+
+var versionCmd = &cobra.Command{
+  Use:   "version",
+  Short: "Print the version number of Hugo",
+  Long:  `All software has versions. This is Hugo's`,
+  Run: func(cmd *cobra.Command, args []string) {
+    fmt.Println("Hugo Static Site Generator v0.9 -- HEAD")
+  },
+}
+```
+
+### Returning and handling errors
+
+If you wish to return an error to the caller of a command, `RunE` can be used.
+
+```go
+package cmd
+
+import (
+  "fmt"
+
+  "github.com/spf13/cobra"
+)
+
+func init() {
+  rootCmd.AddCommand(tryCmd)
+}
+
+var tryCmd = &cobra.Command{
+  Use:   "try",
+  Short: "Try and possibly fail at something",
+  RunE: func(cmd *cobra.Command, args []string) error {
+    if err := someFunc(); err != nil {
+	return err
+    }
+    return nil
+  },
+}
+```
+
+The error can then be caught at the execute function call.
+
+## Working with Flags
+
+Flags provide modifiers to control how the action command operates.
+
+### Assign flags to a command
+
+Since the flags are defined and used in different locations, we need to
+define a variable outside with the correct scope to assign the flag to
+work with.
+
+```go
+var Verbose bool
+var Source string
+```
+
+There are two different approaches to assign a flag.
+
+### Persistent Flags
+
+A flag can be 'persistent', meaning that this flag will be available to the
+command it's assigned to as well as every command under that command. For
+global flags, assign a flag as a persistent flag on the root.
+
+```go
+rootCmd.PersistentFlags().BoolVarP(&Verbose, "verbose", "v", false, "verbose output")
+```
+
+### Local Flags
+
+A flag can also be assigned locally, which will only apply to that specific command.
+
+```go
+localCmd.Flags().StringVarP(&Source, "source", "s", "", "Source directory to read from")
+```
+
+### Local Flag on Parent Commands
+
+By default, Cobra only parses local flags on the target command, and any local flags on
+parent commands are ignored. By enabling `Command.TraverseChildren`, Cobra will
+parse local flags on each command before executing the target command.
+
+```go
+command := cobra.Command{
+  Use: "print [OPTIONS] [COMMANDS]",
+  TraverseChildren: true,
+}
+```
+
+### Bind Flags with Config
+
+You can also bind your flags with [viper](https://github.com/spf13/viper):
+```go
+var author string
+
+func init() {
+  rootCmd.PersistentFlags().StringVar(&author, "author", "YOUR NAME", "Author name for copyright attribution")
+  viper.BindPFlag("author", rootCmd.PersistentFlags().Lookup("author"))
+}
+```
+
+In this example, the persistent flag `author` is bound with `viper`.
+**Note**: the variable `author` will not be set to the value from config,
+when the `--author` flag is provided by user.
+
+More in [viper documentation](https://github.com/spf13/viper#working-with-flags).
+
+### Required flags
+
+Flags are optional by default. If instead you wish your command to report an error
+when a flag has not been set, mark it as required:
+```go
+rootCmd.Flags().StringVarP(&Region, "region", "r", "", "AWS region (required)")
+rootCmd.MarkFlagRequired("region")
+```
+
+Or, for persistent flags:
+```go
+rootCmd.PersistentFlags().StringVarP(&Region, "region", "r", "", "AWS region (required)")
+rootCmd.MarkPersistentFlagRequired("region")
+```
+
+### Flag Groups
+
+If you have different flags that must be provided together (e.g. if they provide the `--username` flag they MUST provide the `--password` flag as well) then
+Cobra can enforce that requirement:
+```go
+rootCmd.Flags().StringVarP(&u, "username", "u", "", "Username (required if password is set)")
+rootCmd.Flags().StringVarP(&pw, "password", "p", "", "Password (required if username is set)")
+rootCmd.MarkFlagsRequiredTogether("username", "password")
+```
+
+You can also prevent different flags from being provided together if they represent mutually
+exclusive options such as specifying an output format as either `--json` or `--yaml` but never both:
+```go
+rootCmd.Flags().BoolVar(&u, "json", false, "Output in JSON")
+rootCmd.Flags().BoolVar(&pw, "yaml", false, "Output in YAML")
+rootCmd.MarkFlagsMutuallyExclusive("json", "yaml")
+```
+
+In both of these cases:
+  - both local and persistent flags can be used
+    - **NOTE:** the group is only enforced on commands where every flag is defined
+  - a flag may appear in multiple groups
+  - a group may contain any number of flags
+
+## Positional and Custom Arguments
+
+Validation of positional arguments can be specified using the `Args` field of `Command`.
+The following validators are built in:
+
+- Number of arguments:
+  - `NoArgs` - report an error if there are any positional args.
+  - `ArbitraryArgs` - accept any number of args.
+  - `MinimumNArgs(int)` - report an error if less than N positional args are provided.
+  - `MaximumNArgs(int)` - report an error if more than N positional args are provided.
+  - `ExactArgs(int)` - report an error if there are not exactly N positional args.
+  - `RangeArgs(min, max)` - report an error if the number of args is not between `min` and `max`.
+- Content of the arguments:
+  - `OnlyValidArgs` - report an error if there are any positional args not specified in the `ValidArgs` field of `Command`, which can optionally be set to a list of valid values for positional args.
+
+If `Args` is undefined or `nil`, it defaults to `ArbitraryArgs`.
+
+Moreover, `MatchAll(pargs ...PositionalArgs)` enables combining existing checks with arbitrary other checks.
+For instance, if you want to report an error if there are not exactly N positional args OR if there are any positional
+args that are not in the `ValidArgs` field of `Command`, you can call `MatchAll` on `ExactArgs` and `OnlyValidArgs`, as
+shown below:
+
+```go
+var cmd = &cobra.Command{
+  Short: "hello",
+  Args: MatchAll(ExactArgs(2), OnlyValidArgs),
+  Run: func(cmd *cobra.Command, args []string) {
+    fmt.Println("Hello, World!")
+  },
+}
+```
+
+It is possible to set any custom validator that satisfies `func(cmd *cobra.Command, args []string) error`.
+For example:
+
+```go
+var cmd = &cobra.Command{
+  Short: "hello",
+  Args: func(cmd *cobra.Command, args []string) error {
+    // Optionally run one of the validators provided by cobra
+    if err := cobra.MinimumNArgs(1)(cmd, args); err != nil {
+        return err
+    }
+    // Run the custom validation logic
+    if myapp.IsValidColor(args[0]) {
+      return nil
+    }
+    return fmt.Errorf("invalid color specified: %s", args[0])
+  },
+  Run: func(cmd *cobra.Command, args []string) {
+    fmt.Println("Hello, World!")
+  },
+}
+```
+
+## Example
+
+In the example below, we have defined three commands. Two are at the top level
+and one (cmdTimes) is a child of one of the top commands. In this case the root
+is not executable, meaning that a subcommand is required. This is accomplished
+by not providing a 'Run' for the 'rootCmd'.
+
+We have only defined one flag for a single command.
+
+More documentation about flags is available at https://github.com/spf13/pflag
+
+```go
+package main
+
+import (
+  "fmt"
+  "strings"
+
+  "github.com/spf13/cobra"
+)
+
+func main() {
+  var echoTimes int
+
+  var cmdPrint = &cobra.Command{
+    Use:   "print [string to print]",
+    Short: "Print anything to the screen",
+    Long: `print is for printing anything back to the screen.
+For many years people have printed back to the screen.`,
+    Args: cobra.MinimumNArgs(1),
+    Run: func(cmd *cobra.Command, args []string) {
+      fmt.Println("Print: " + strings.Join(args, " "))
+    },
+  }
+
+  var cmdEcho = &cobra.Command{
+    Use:   "echo [string to echo]",
+    Short: "Echo anything to the screen",
+    Long: `echo is for echoing anything back.
+Echo works a lot like print, except it has a child command.`,
+    Args: cobra.MinimumNArgs(1),
+    Run: func(cmd *cobra.Command, args []string) {
+      fmt.Println("Echo: " + strings.Join(args, " "))
+    },
+  }
+
+  var cmdTimes = &cobra.Command{
+    Use:   "times [string to echo]",
+    Short: "Echo anything to the screen more times",
+    Long: `echo things multiple times back to the user by providing
+a count and a string.`,
+    Args: cobra.MinimumNArgs(1),
+    Run: func(cmd *cobra.Command, args []string) {
+      for i := 0; i < echoTimes; i++ {
+        fmt.Println("Echo: " + strings.Join(args, " "))
+      }
+    },
+  }
+
+  cmdTimes.Flags().IntVarP(&echoTimes, "times", "t", 1, "times to echo the input")
+
+  var rootCmd = &cobra.Command{Use: "app"}
+  rootCmd.AddCommand(cmdPrint, cmdEcho)
+  cmdEcho.AddCommand(cmdTimes)
+  rootCmd.Execute()
+}
+```
+
+For a more complete example of a larger application, please checkout [Hugo](https://gohugo.io/).
+
+## Help Command
+
+Cobra automatically adds a help command to your application when you have subcommands.
+This will be called when a user runs 'app help'. Additionally, help will also
+support all other commands as input. Say, for instance, you have a command called
+'create' without any additional configuration; Cobra will work when 'app help
+create' is called.  Every command will automatically have the '--help' flag added.
+
+### Example
+
+The following output is automatically generated by Cobra. Nothing beyond the
+command and flag definitions are needed.
+
+    $ cobra-cli help
+
+    Cobra is a CLI library for Go that empowers applications.
+    This application is a tool to generate the needed files
+    to quickly create a Cobra application.
+
+    Usage:
+      cobra-cli [command]
+
+    Available Commands:
+      add         Add a command to a Cobra Application
+      completion  Generate the autocompletion script for the specified shell
+      help        Help about any command
+      init        Initialize a Cobra Application
+
+    Flags:
+      -a, --author string    author name for copyright attribution (default "YOUR NAME")
+          --config string    config file (default is $HOME/.cobra.yaml)
+      -h, --help             help for cobra-cli
+      -l, --license string   name of license for the project
+          --viper            use Viper for configuration
+
+    Use "cobra-cli [command] --help" for more information about a command.
+
+
+Help is just a command like any other. There is no special logic or behavior
+around it. In fact, you can provide your own if you want.
+
+### Grouping commands in help
+
+Cobra supports grouping of available commands in the help output.  To group commands, each group must be explicitly
+defined using `AddGroup()` on the parent command.  Then a subcommand can be added to a group using the `GroupID` element
+of that subcommand. The groups will appear in the help output in the same order as they are defined using different
+calls to `AddGroup()`.  If you use the generated `help` or `completion` commands, you can set their group ids using
+`SetHelpCommandGroupId()` and `SetCompletionCommandGroupId()` on the root command, respectively.
+
+### Defining your own help
+
+You can provide your own Help command or your own template for the default command to use
+with the following functions:
+
+```go
+cmd.SetHelpCommand(cmd *Command)
+cmd.SetHelpFunc(f func(*Command, []string))
+cmd.SetHelpTemplate(s string)
+```
+
+The latter two will also apply to any children commands.
+
+## Usage Message
+
+When the user provides an invalid flag or invalid command, Cobra responds by
+showing the user the 'usage'.
+
+### Example
+You may recognize this from the help above. That's because the default help
+embeds the usage as part of its output.
+
+    $ cobra-cli --invalid
+    Error: unknown flag: --invalid
+    Usage:
+      cobra-cli [command]
+
+    Available Commands:
+      add         Add a command to a Cobra Application
+      completion  Generate the autocompletion script for the specified shell
+      help        Help about any command
+      init        Initialize a Cobra Application
+
+    Flags:
+      -a, --author string    author name for copyright attribution (default "YOUR NAME")
+          --config string    config file (default is $HOME/.cobra.yaml)
+      -h, --help             help for cobra-cli
+      -l, --license string   name of license for the project
+          --viper            use Viper for configuration
+
+    Use "cobra [command] --help" for more information about a command.
+
+### Defining your own usage
+You can provide your own usage function or template for Cobra to use.
+Like help, the function and template are overridable through public methods:
+
+```go
+cmd.SetUsageFunc(f func(*Command) error)
+cmd.SetUsageTemplate(s string)
+```
+
+## Version Flag
+
+Cobra adds a top-level '--version' flag if the Version field is set on the root command.
+Running an application with the '--version' flag will print the version to stdout using
+the version template. The template can be customized using the
+`cmd.SetVersionTemplate(s string)` function.
+
+## PreRun and PostRun Hooks
+
+It is possible to run functions before or after the main `Run` function of your command. The `PersistentPreRun` and `PreRun` functions will be executed before `Run`. `PersistentPostRun` and `PostRun` will be executed after `Run`.  The `Persistent*Run` functions will be inherited by children if they do not declare their own.  These functions are run in the following order:
+
+- `PersistentPreRun`
+- `PreRun`
+- `Run`
+- `PostRun`
+- `PersistentPostRun`
+
+An example of two commands which use all of these features is below.  When the subcommand is executed, it will run the root command's `PersistentPreRun` but not the root command's `PersistentPostRun`:
+
+```go
+package main
+
+import (
+  "fmt"
+
+  "github.com/spf13/cobra"
+)
+
+func main() {
+
+  var rootCmd = &cobra.Command{
+    Use:   "root [sub]",
+    Short: "My root command",
+    PersistentPreRun: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside rootCmd PersistentPreRun with args: %v\n", args)
+    },
+    PreRun: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside rootCmd PreRun with args: %v\n", args)
+    },
+    Run: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside rootCmd Run with args: %v\n", args)
+    },
+    PostRun: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside rootCmd PostRun with args: %v\n", args)
+    },
+    PersistentPostRun: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside rootCmd PersistentPostRun with args: %v\n", args)
+    },
+  }
+
+  var subCmd = &cobra.Command{
+    Use:   "sub [no options!]",
+    Short: "My subcommand",
+    PreRun: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside subCmd PreRun with args: %v\n", args)
+    },
+    Run: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside subCmd Run with args: %v\n", args)
+    },
+    PostRun: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside subCmd PostRun with args: %v\n", args)
+    },
+    PersistentPostRun: func(cmd *cobra.Command, args []string) {
+      fmt.Printf("Inside subCmd PersistentPostRun with args: %v\n", args)
+    },
+  }
+
+  rootCmd.AddCommand(subCmd)
+
+  rootCmd.SetArgs([]string{""})
+  rootCmd.Execute()
+  fmt.Println()
+  rootCmd.SetArgs([]string{"sub", "arg1", "arg2"})
+  rootCmd.Execute()
+}
+```
+
+Output:
+```
+Inside rootCmd PersistentPreRun with args: []
+Inside rootCmd PreRun with args: []
+Inside rootCmd Run with args: []
+Inside rootCmd PostRun with args: []
+Inside rootCmd PersistentPostRun with args: []
+
+Inside rootCmd PersistentPreRun with args: [arg1 arg2]
+Inside subCmd PreRun with args: [arg1 arg2]
+Inside subCmd Run with args: [arg1 arg2]
+Inside subCmd PostRun with args: [arg1 arg2]
+Inside subCmd PersistentPostRun with args: [arg1 arg2]
+```
+
+## Suggestions when "unknown command" happens
+
+Cobra will print automatic suggestions when "unknown command" errors happen. This allows Cobra to behave similarly to the `git` command when a typo happens. For example:
+
+```
+$ hugo srever
+Error: unknown command "srever" for "hugo"
+
+Did you mean this?
+        server
+
+Run 'hugo --help' for usage.
+```
+
+Suggestions are automatically generated based on existing subcommands and use an implementation of [Levenshtein distance](https://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion.
+
+If you need to disable suggestions or tweak the string distance in your command, use:
+
+```go
+command.DisableSuggestions = true
+```
+
+or
+
+```go
+command.SuggestionsMinimumDistance = 1
+```
+
+You can also explicitly set names for which a given command will be suggested using the `SuggestFor` attribute. This allows suggestions for strings that are not close in terms of string distance, but make sense in your set of commands but for which
+you don't want aliases. Example:
+
+```
+$ kubectl remove
+Error: unknown command "remove" for "kubectl"
+
+Did you mean this?
+        delete
+
+Run 'kubectl help' for usage.
+```
+
+## Generating documentation for your command
+
+Cobra can generate documentation based on subcommands, flags, etc. Read more about it in the [docs generation documentation](doc/README.md).
+
+## Generating shell completions
+
+Cobra can generate a shell-completion file for the following shells: bash, zsh, fish, PowerShell. If you add more information to your commands, these completions can be amazingly powerful and flexible.  Read more about it in [Shell Completions](shell_completions.md).
+
+## Providing Active Help
+
+Cobra makes use of the shell-completion system to define a framework allowing you to provide Active Help to your users.  Active Help are messages (hints, warnings, etc) printed as the program is being used.  Read more about it in [Active Help](active_help.md).

vendor/github.com/spf13/cobra/zsh_completions.go

@@ -1,336 +1,301 @@
+// Copyright 2013-2022 The Cobra 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 cobra
 
 import (
-	"encoding/json"
+	"bytes"
 	"fmt"
 	"io"
 	"os"
-	"sort"
-	"strings"
-	"text/template"
-
-	"github.com/spf13/pflag"
 )
 
-const (
+// GenZshCompletionFile generates zsh completion file including descriptions.
-	zshCompArgumentAnnotation   = "cobra_annotations_zsh_completion_argument_annotation"
-	zshCompArgumentFilenameComp = "cobra_annotations_zsh_completion_argument_file_completion"
-	zshCompArgumentWordComp     = "cobra_annotations_zsh_completion_argument_word_completion"
-	zshCompDirname              = "cobra_annotations_zsh_dirname"
-)
-
-var (
-	zshCompFuncMap = template.FuncMap{
-		"genZshFuncName":              zshCompGenFuncName,
-		"extractFlags":                zshCompExtractFlag,
-		"genFlagEntryForZshArguments": zshCompGenFlagEntryForArguments,
-		"extractArgsCompletions":      zshCompExtractArgumentCompletionHintsForRendering,
-	}
-	zshCompletionText = `
-{{/* should accept Command (that contains subcommands) as parameter */}}
-{{define "argumentsC" -}}
-{{ $cmdPath := genZshFuncName .}}
-function {{$cmdPath}} {
-  local -a commands
-
-  _arguments -C \{{- range extractFlags .}}
-    {{genFlagEntryForZshArguments .}} \{{- end}}
-    "1: :->cmnds" \
-    "*::arg:->args"
-
-  case $state in
-  cmnds)
-    commands=({{range .Commands}}{{if not .Hidden}}
-      "{{.Name}}:{{.Short}}"{{end}}{{end}}
-    )
-    _describe "command" commands
-    ;;
-  esac
-
-  case "$words[1]" in {{- range .Commands}}{{if not .Hidden}}
-  {{.Name}})
-    {{$cmdPath}}_{{.Name}}
-    ;;{{end}}{{end}}
-  esac
-}
-{{range .Commands}}{{if not .Hidden}}
-{{template "selectCmdTemplate" .}}
-{{- end}}{{end}}
-{{- end}}
-
-{{/* should accept Command without subcommands as parameter */}}
-{{define "arguments" -}}
-function {{genZshFuncName .}} {
-{{"  _arguments"}}{{range extractFlags .}} \
-    {{genFlagEntryForZshArguments . -}}
-{{end}}{{range extractArgsCompletions .}} \
-    {{.}}{{end}}
-}
-{{end}}
-
-{{/* dispatcher for commands with or without subcommands */}}
-{{define "selectCmdTemplate" -}}
-{{if .Hidden}}{{/* ignore hidden*/}}{{else -}}
-{{if .Commands}}{{template "argumentsC" .}}{{else}}{{template "arguments" .}}{{end}}
-{{- end}}
-{{- end}}
-
-{{/* template entry point */}}
-{{define "Main" -}}
-#compdef _{{.Name}} {{.Name}}
-
-{{template "selectCmdTemplate" .}}
-{{end}}
-`
-)
-
-// zshCompArgsAnnotation is used to encode/decode zsh completion for
-// arguments to/from Command.Annotations.
-type zshCompArgsAnnotation map[int]zshCompArgHint
-
-type zshCompArgHint struct {
-	// Indicates the type of the completion to use. One of:
-	// zshCompArgumentFilenameComp or zshCompArgumentWordComp
-	Tipe string `json:"type"`
-
-	// A value for the type above (globs for file completion or words)
-	Options []string `json:"options"`
-}
-
-// GenZshCompletionFile generates zsh completion file.
 func (c *Command) GenZshCompletionFile(filename string) error {
+	return c.genZshCompletionFile(filename, true)
+}
+
+// GenZshCompletion generates zsh completion file including descriptions
+// and writes it to the passed writer.
+func (c *Command) GenZshCompletion(w io.Writer) error {
+	return c.genZshCompletion(w, true)
+}
+
+// GenZshCompletionFileNoDesc generates zsh completion file without descriptions.
+func (c *Command) GenZshCompletionFileNoDesc(filename string) error {
+	return c.genZshCompletionFile(filename, false)
+}
+
+// GenZshCompletionNoDesc generates zsh completion file without descriptions
+// and writes it to the passed writer.
+func (c *Command) GenZshCompletionNoDesc(w io.Writer) error {
+	return c.genZshCompletion(w, false)
+}
+
+// MarkZshCompPositionalArgumentFile only worked for zsh and its behavior was
+// not consistent with Bash completion. It has therefore been disabled.
+// Instead, when no other completion is specified, file completion is done by
+// default for every argument. One can disable file completion on a per-argument
+// basis by using ValidArgsFunction and ShellCompDirectiveNoFileComp.
+// To achieve file extension filtering, one can use ValidArgsFunction and
+// ShellCompDirectiveFilterFileExt.
+//
+// Deprecated
+func (c *Command) MarkZshCompPositionalArgumentFile(argPosition int, patterns ...string) error {
+	return nil
+}
+
+// MarkZshCompPositionalArgumentWords only worked for zsh. It has therefore
+// been disabled.
+// To achieve the same behavior across all shells, one can use
+// ValidArgs (for the first argument only) or ValidArgsFunction for
+// any argument (can include the first one also).
+//
+// Deprecated
+func (c *Command) MarkZshCompPositionalArgumentWords(argPosition int, words ...string) error {
+	return nil
+}
+
+func (c *Command) genZshCompletionFile(filename string, includeDesc bool) error {
 	outFile, err := os.Create(filename)
 	if err != nil {
 		return err
 	}
 	defer outFile.Close()
 
-	return c.GenZshCompletion(outFile)
+	return c.genZshCompletion(outFile, includeDesc)
 }
 
-// GenZshCompletion generates a zsh completion file and writes to the passed
+func (c *Command) genZshCompletion(w io.Writer, includeDesc bool) error {
-// writer. The completion always run on the root command regardless of the
+	buf := new(bytes.Buffer)
-// command it was called from.
+	genZshComp(buf, c.Name(), includeDesc)
-func (c *Command) GenZshCompletion(w io.Writer) error {
+	_, err := buf.WriteTo(w)
-	tmpl, err := template.New("Main").Funcs(zshCompFuncMap).Parse(zshCompletionText)
+	return err
-	if err != nil {
-		return fmt.Errorf("error creating zsh completion template: %v", err)
-	}
-	return tmpl.Execute(w, c.Root())
 }
 
-// MarkZshCompPositionalArgumentFile marks the specified argument (first
+func genZshComp(buf io.StringWriter, name string, includeDesc bool) {
-// argument is 1) as completed by file selection. patterns (e.g. "*.txt") are
+	compCmd := ShellCompRequestCmd
-// optional - if not provided the completion will search for all files.
+	if !includeDesc {
-func (c *Command) MarkZshCompPositionalArgumentFile(argPosition int, patterns ...string) error {
+		compCmd = ShellCompNoDescRequestCmd
-	if argPosition < 1 {
-		return fmt.Errorf("Invalid argument position (%d)", argPosition)
 	}
-	annotation, err := c.zshCompGetArgsAnnotations()
+	WriteStringAndCheck(buf, fmt.Sprintf(`#compdef %[1]s
-	if err != nil {
+
-		return err
+# zsh completion for %-36[1]s -*- shell-script -*-
-	}
+
-	if c.zshcompArgsAnnotationnIsDuplicatePosition(annotation, argPosition) {
+__%[1]s_debug()
-		return fmt.Errorf("Duplicate annotation for positional argument at index %d", argPosition)
+{
-	}
+    local file="$BASH_COMP_DEBUG_FILE"
-	annotation[argPosition] = zshCompArgHint{
+    if [[ -n ${file} ]]; then
-		Tipe:    zshCompArgumentFilenameComp,
+        echo "$*" >> "${file}"
-		Options: patterns,
+    fi
-	}
-	return c.zshCompSetArgsAnnotations(annotation)
 }
 
-// MarkZshCompPositionalArgumentWords marks the specified positional argument
+_%[1]s()
-// (first argument is 1) as completed by the provided words. At east one word
+{
-// must be provided, spaces within words will be offered completion with
+    local shellCompDirectiveError=%[3]d
-// "word\ word".
+    local shellCompDirectiveNoSpace=%[4]d
-func (c *Command) MarkZshCompPositionalArgumentWords(argPosition int, words ...string) error {
+    local shellCompDirectiveNoFileComp=%[5]d
-	if argPosition < 1 {
+    local shellCompDirectiveFilterFileExt=%[6]d
-		return fmt.Errorf("Invalid argument position (%d)", argPosition)
+    local shellCompDirectiveFilterDirs=%[7]d
-	}
+
-	if len(words) == 0 {
+    local lastParam lastChar flagPrefix requestComp out directive comp lastComp noSpace
-		return fmt.Errorf("Trying to set empty word list for positional argument %d", argPosition)
+    local -a completions
-	}
+
-	annotation, err := c.zshCompGetArgsAnnotations()
+    __%[1]s_debug "\n========= starting completion logic =========="
-	if err != nil {
+    __%[1]s_debug "CURRENT: ${CURRENT}, words[*]: ${words[*]}"
-		return err
+
-	}
+    # The user could have moved the cursor backwards on the command-line.
-	if c.zshcompArgsAnnotationnIsDuplicatePosition(annotation, argPosition) {
+    # We need to trigger completion from the $CURRENT location, so we need
-		return fmt.Errorf("Duplicate annotation for positional argument at index %d", argPosition)
+    # to truncate the command-line ($words) up to the $CURRENT location.
-	}
+    # (We cannot use $CURSOR as its value does not work when a command is an alias.)
-	annotation[argPosition] = zshCompArgHint{
+    words=("${=words[1,CURRENT]}")
-		Tipe:    zshCompArgumentWordComp,
+    __%[1]s_debug "Truncated words[*]: ${words[*]},"
-		Options: words,
+
-	}
+    lastParam=${words[-1]}
-	return c.zshCompSetArgsAnnotations(annotation)
+    lastChar=${lastParam[-1]}
+    __%[1]s_debug "lastParam: ${lastParam}, lastChar: ${lastChar}"
+
+    # For zsh, when completing a flag with an = (e.g., %[1]s -n=<TAB>)
+    # completions must be prefixed with the flag
+    setopt local_options BASH_REMATCH
+    if [[ "${lastParam}" =~ '-.*=' ]]; then
+        # We are dealing with a flag with an =
+        flagPrefix="-P ${BASH_REMATCH}"
+    fi
+
+    # Prepare the command to obtain completions
+    requestComp="${words[1]} %[2]s ${words[2,-1]}"
+    if [ "${lastChar}" = "" ]; then
+        # If the last parameter is complete (there is a space following it)
+        # We add an extra empty parameter so we can indicate this to the go completion code.
+        __%[1]s_debug "Adding extra empty parameter"
+        requestComp="${requestComp} \"\""
+    fi
+
+    __%[1]s_debug "About to call: eval ${requestComp}"
+
+    # Use eval to handle any environment variables and such
+    out=$(eval ${requestComp} 2>/dev/null)
+    __%[1]s_debug "completion output: ${out}"
+
+    # Extract the directive integer following a : from the last line
+    local lastLine
+    while IFS='\n' read -r line; do
+        lastLine=${line}
+    done < <(printf "%%s\n" "${out[@]}")
+    __%[1]s_debug "last line: ${lastLine}"
+
+    if [ "${lastLine[1]}" = : ]; then
+        directive=${lastLine[2,-1]}
+        # Remove the directive including the : and the newline
+        local suffix
+        (( suffix=${#lastLine}+2))
+        out=${out[1,-$suffix]}
+    else
+        # There is no directive specified.  Leave $out as is.
+        __%[1]s_debug "No directive found.  Setting do default"
+        directive=0
+    fi
+
+    __%[1]s_debug "directive: ${directive}"
+    __%[1]s_debug "completions: ${out}"
+    __%[1]s_debug "flagPrefix: ${flagPrefix}"
+
+    if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then
+        __%[1]s_debug "Completion received error. Ignoring completions."
+        return
+    fi
+
+    local activeHelpMarker="%[8]s"
+    local endIndex=${#activeHelpMarker}
+    local startIndex=$((${#activeHelpMarker}+1))
+    local hasActiveHelp=0
+    while IFS='\n' read -r comp; do
+        # Check if this is an activeHelp statement (i.e., prefixed with $activeHelpMarker)
+        if [ "${comp[1,$endIndex]}" = "$activeHelpMarker" ];then
+            __%[1]s_debug "ActiveHelp found: $comp"
+            comp="${comp[$startIndex,-1]}"
+            if [ -n "$comp" ]; then
+                compadd -x "${comp}"
+                __%[1]s_debug "ActiveHelp will need delimiter"
+                hasActiveHelp=1
+            fi
+
+            continue
+        fi
+
+        if [ -n "$comp" ]; then
+            # If requested, completions are returned with a description.
+            # The description is preceded by a TAB character.
+            # For zsh's _describe, we need to use a : instead of a TAB.
+            # We first need to escape any : as part of the completion itself.
+            comp=${comp//:/\\:}
+
+            local tab="$(printf '\t')"
+            comp=${comp//$tab/:}
+
+            __%[1]s_debug "Adding completion: ${comp}"
+            completions+=${comp}
+            lastComp=$comp
+        fi
+    done < <(printf "%%s\n" "${out[@]}")
+
+    # Add a delimiter after the activeHelp statements, but only if:
+    # - there are completions following the activeHelp statements, or
+    # - file completion will be performed (so there will be choices after the activeHelp)
+    if [ $hasActiveHelp -eq 1 ]; then
+        if [ ${#completions} -ne 0 ] || [ $((directive & shellCompDirectiveNoFileComp)) -eq 0 ]; then
+            __%[1]s_debug "Adding activeHelp delimiter"
+            compadd -x "--"
+            hasActiveHelp=0
+        fi
+    fi
+
+    if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then
+        __%[1]s_debug "Activating nospace."
+        noSpace="-S ''"
+    fi
+
+    if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then
+        # File extension filtering
+        local filteringCmd
+        filteringCmd='_files'
+        for filter in ${completions[@]}; do
+            if [ ${filter[1]} != '*' ]; then
+                # zsh requires a glob pattern to do file filtering
+                filter="\*.$filter"
+            fi
+            filteringCmd+=" -g $filter"
+        done
+        filteringCmd+=" ${flagPrefix}"
+
+        __%[1]s_debug "File filtering command: $filteringCmd"
+        _arguments '*:filename:'"$filteringCmd"
+    elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then
+        # File completion for directories only
+        local subdir
+        subdir="${completions[1]}"
+        if [ -n "$subdir" ]; then
+            __%[1]s_debug "Listing directories in $subdir"
+            pushd "${subdir}" >/dev/null 2>&1
+        else
+            __%[1]s_debug "Listing directories in ."
+        fi
+
+        local result
+        _arguments '*:dirname:_files -/'" ${flagPrefix}"
+        result=$?
+        if [ -n "$subdir" ]; then
+            popd >/dev/null 2>&1
+        fi
+        return $result
+    else
+        __%[1]s_debug "Calling _describe"
+        if eval _describe "completions" completions $flagPrefix $noSpace; then
+            __%[1]s_debug "_describe found some completions"
+
+            # Return the success of having called _describe
+            return 0
+        else
+            __%[1]s_debug "_describe did not find completions."
+            __%[1]s_debug "Checking if we should do file completion."
+            if [ $((directive & shellCompDirectiveNoFileComp)) -ne 0 ]; then
+                __%[1]s_debug "deactivating file completion"
+
+                # We must return an error code here to let zsh know that there were no
+                # completions found by _describe; this is what will trigger other
+                # matching algorithms to attempt to find completions.
+                # For example zsh can match letters in the middle of words.
+                return 1
+            else
+                # Perform file completion
+                __%[1]s_debug "Activating file completion"
+
+                # We must return the result of this command, so it must be the
+                # last command, or else we must store its result to return it.
+                _arguments '*:filename:_files'" ${flagPrefix}"
+            fi
+        fi
+    fi
 }
 
-func zshCompExtractArgumentCompletionHintsForRendering(c *Command) ([]string, error) {
+# don't run the completion function when being source-ed or eval-ed
-	var result []string
+if [ "$funcstack[1]" = "_%[1]s" ]; then
-	annotation, err := c.zshCompGetArgsAnnotations()
+    _%[1]s
-	if err != nil {
+fi
-		return nil, err
+`, name, compCmd,
-	}
+		ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
-	for k, v := range annotation {
+		ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs,
-		s, err := zshCompRenderZshCompArgHint(k, v)
+		activeHelpMarker))
-		if err != nil {
-			return nil, err
-		}
-		result = append(result, s)
-	}
-	if len(c.ValidArgs) > 0 {
-		if _, positionOneExists := annotation[1]; !positionOneExists {
-			s, err := zshCompRenderZshCompArgHint(1, zshCompArgHint{
-				Tipe:    zshCompArgumentWordComp,
-				Options: c.ValidArgs,
-			})
-			if err != nil {
-				return nil, err
-			}
-			result = append(result, s)
-		}
-	}
-	sort.Strings(result)
-	return result, nil
-}
-
-func zshCompRenderZshCompArgHint(i int, z zshCompArgHint) (string, error) {
-	switch t := z.Tipe; t {
-	case zshCompArgumentFilenameComp:
-		var globs []string
-		for _, g := range z.Options {
-			globs = append(globs, fmt.Sprintf(`-g "%s"`, g))
-		}
-		return fmt.Sprintf(`'%d: :_files %s'`, i, strings.Join(globs, " ")), nil
-	case zshCompArgumentWordComp:
-		var words []string
-		for _, w := range z.Options {
-			words = append(words, fmt.Sprintf("%q", w))
-		}
-		return fmt.Sprintf(`'%d: :(%s)'`, i, strings.Join(words, " ")), nil
-	default:
-		return "", fmt.Errorf("Invalid zsh argument completion annotation: %s", t)
-	}
-}
-
-func (c *Command) zshcompArgsAnnotationnIsDuplicatePosition(annotation zshCompArgsAnnotation, position int) bool {
-	_, dup := annotation[position]
-	return dup
-}
-
-func (c *Command) zshCompGetArgsAnnotations() (zshCompArgsAnnotation, error) {
-	annotation := make(zshCompArgsAnnotation)
-	annotationString, ok := c.Annotations[zshCompArgumentAnnotation]
-	if !ok {
-		return annotation, nil
-	}
-	err := json.Unmarshal([]byte(annotationString), &annotation)
-	if err != nil {
-		return annotation, fmt.Errorf("Error unmarshaling zsh argument annotation: %v", err)
-	}
-	return annotation, nil
-}
-
-func (c *Command) zshCompSetArgsAnnotations(annotation zshCompArgsAnnotation) error {
-	jsn, err := json.Marshal(annotation)
-	if err != nil {
-		return fmt.Errorf("Error marshaling zsh argument annotation: %v", err)
-	}
-	if c.Annotations == nil {
-		c.Annotations = make(map[string]string)
-	}
-	c.Annotations[zshCompArgumentAnnotation] = string(jsn)
-	return nil
-}
-
-func zshCompGenFuncName(c *Command) string {
-	if c.HasParent() {
-		return zshCompGenFuncName(c.Parent()) + "_" + c.Name()
-	}
-	return "_" + c.Name()
-}
-
-func zshCompExtractFlag(c *Command) []*pflag.Flag {
-	var flags []*pflag.Flag
-	c.LocalFlags().VisitAll(func(f *pflag.Flag) {
-		if !f.Hidden {
-			flags = append(flags, f)
-		}
-	})
-	c.InheritedFlags().VisitAll(func(f *pflag.Flag) {
-		if !f.Hidden {
-			flags = append(flags, f)
-		}
-	})
-	return flags
-}
-
-// zshCompGenFlagEntryForArguments returns an entry that matches _arguments
-// zsh-completion parameters. It's too complicated to generate in a template.
-func zshCompGenFlagEntryForArguments(f *pflag.Flag) string {
-	if f.Name == "" || f.Shorthand == "" {
-		return zshCompGenFlagEntryForSingleOptionFlag(f)
-	}
-	return zshCompGenFlagEntryForMultiOptionFlag(f)
-}
-
-func zshCompGenFlagEntryForSingleOptionFlag(f *pflag.Flag) string {
-	var option, multiMark, extras string
-
-	if zshCompFlagCouldBeSpecifiedMoreThenOnce(f) {
-		multiMark = "*"
-	}
-
-	option = "--" + f.Name
-	if option == "--" {
-		option = "-" + f.Shorthand
-	}
-	extras = zshCompGenFlagEntryExtras(f)
-
-	return fmt.Sprintf(`'%s%s[%s]%s'`, multiMark, option, zshCompQuoteFlagDescription(f.Usage), extras)
-}
-
-func zshCompGenFlagEntryForMultiOptionFlag(f *pflag.Flag) string {
-	var options, parenMultiMark, curlyMultiMark, extras string
-
-	if zshCompFlagCouldBeSpecifiedMoreThenOnce(f) {
-		parenMultiMark = "*"
-		curlyMultiMark = "\\*"
-	}
-
-	options = fmt.Sprintf(`'(%s-%s %s--%s)'{%s-%s,%s--%s}`,
-		parenMultiMark, f.Shorthand, parenMultiMark, f.Name, curlyMultiMark, f.Shorthand, curlyMultiMark, f.Name)
-	extras = zshCompGenFlagEntryExtras(f)
-
-	return fmt.Sprintf(`%s'[%s]%s'`, options, zshCompQuoteFlagDescription(f.Usage), extras)
-}
-
-func zshCompGenFlagEntryExtras(f *pflag.Flag) string {
-	if f.NoOptDefVal != "" {
-		return ""
-	}
-
-	extras := ":" // allow options for flag (even without assistance)
-	for key, values := range f.Annotations {
-		switch key {
-		case zshCompDirname:
-			extras = fmt.Sprintf(":filename:_files -g %q", values[0])
-		case BashCompFilenameExt:
-			extras = ":filename:_files"
-			for _, pattern := range values {
-				extras = extras + fmt.Sprintf(` -g "%s"`, pattern)
-			}
-		}
-	}
-
-	return extras
-}
-
-func zshCompFlagCouldBeSpecifiedMoreThenOnce(f *pflag.Flag) bool {
-	return strings.Contains(f.Value.Type(), "Slice") ||
-		strings.Contains(f.Value.Type(), "Array")
-}
-
-func zshCompQuoteFlagDescription(s string) string {
-	return strings.Replace(s, "'", `'\''`, -1)
 }

vendor/github.com/spf13/cobra/zsh_completions.md

@@ -1,39 +1,48 @@
-## Generating Zsh Completion for your cobra.Command
+## Generating Zsh Completion For Your cobra.Command
 
-Cobra supports native Zsh completion generated from the root `cobra.Command`.
+Please refer to [Shell Completions](shell_completions.md) for details.
-The generated completion script should be put somewhere in your `$fpath` named
-`_<YOUR COMMAND>`.
 
-### What's Supported
+## Zsh completions standardization
 
-* Completion for all non-hidden subcommands using their `.Short` description.
+Cobra 1.1 standardized its zsh completion support to align it with its other shell completions.  Although the API was kept backwards-compatible, some small changes in behavior were introduced.
-* Completion for all non-hidden flags using the following rules:
-  * Filename completion works by marking the flag with `cmd.MarkFlagFilename...`
-    family of commands.
-  * The requirement for argument to the flag is decided by the `.NoOptDefVal`
-    flag value - if it's empty then completion will expect an argument.
-  * Flags of one of the various `*Array` and `*Slice` types supports multiple
-    specifications (with or without argument depending on the specific type).
-* Completion of positional arguments using the following rules:
-  * Argument position for all options below starts at `1`. If argument position
-    `0` is requested it will raise an error.
-  * Use `command.MarkZshCompPositionalArgumentFile` to complete filenames. Glob
-    patterns (e.g. `"*.log"`) are optional - if not specified it will offer to
-    complete all file types.
-  * Use `command.MarkZshCompPositionalArgumentWords` to offer specific words for
-    completion. At least one word is required.
-  * It's possible to specify completion for some arguments and leave some
-    unspecified (e.g. offer words for second argument but nothing for first
-    argument). This will cause no completion for first argument but words
-    completion for second argument.
-  * If no argument completion was specified for 1st argument (but optionally was
-    specified for 2nd) and the command has `ValidArgs` it will be used as
-    completion options for 1st argument.
-  * Argument completions only offered for commands with no subcommands.
 
-### What's not yet Supported
+### Deprecation summary
 
-* Custom completion scripts are not supported yet (We should probably create zsh
+See further below for more details on these deprecations.
-  specific one, doesn't make sense to re-use the bash one as the functions will
+
-  be different).
+* `cmd.MarkZshCompPositionalArgumentFile(pos, []string{})` is no longer needed.  It is therefore **deprecated** and silently ignored.
-* Whatever other feature you're looking for and doesn't exist :)
+* `cmd.MarkZshCompPositionalArgumentFile(pos, glob[])` is **deprecated** and silently ignored.
+  * Instead use `ValidArgsFunction` with `ShellCompDirectiveFilterFileExt`.
+* `cmd.MarkZshCompPositionalArgumentWords()` is **deprecated** and silently ignored.
+  * Instead use `ValidArgsFunction`.
+
+### Behavioral changes
+
+**Noun completion**
+|Old behavior|New behavior|
+|---|---|
+|No file completion by default (opposite of bash)|File completion by default; use `ValidArgsFunction` with `ShellCompDirectiveNoFileComp` to turn off file completion on a per-argument basis|
+|Completion of flag names without the `-` prefix having been typed|Flag names are only completed if the user has typed the first `-`|
+`cmd.MarkZshCompPositionalArgumentFile(pos, []string{})` used to turn on file completion on a per-argument position basis|File completion for all arguments by default; `cmd.MarkZshCompPositionalArgumentFile()` is **deprecated** and silently ignored|
+|`cmd.MarkZshCompPositionalArgumentFile(pos, glob[])` used to turn on file completion **with glob filtering** on a per-argument position basis (zsh-specific)|`cmd.MarkZshCompPositionalArgumentFile()` is **deprecated** and silently ignored; use `ValidArgsFunction` with `ShellCompDirectiveFilterFileExt` for file **extension** filtering (not full glob filtering)|
+|`cmd.MarkZshCompPositionalArgumentWords(pos, words[])` used to provide completion choices on a per-argument position basis (zsh-specific)|`cmd.MarkZshCompPositionalArgumentWords()` is **deprecated** and silently ignored; use `ValidArgsFunction` to achieve the same behavior|
+
+**Flag-value completion**
+
+|Old behavior|New behavior|
+|---|---|
+|No file completion by default (opposite of bash)|File completion by default; use `RegisterFlagCompletionFunc()` with `ShellCompDirectiveNoFileComp` to turn off file completion|
+|`cmd.MarkFlagFilename(flag, []string{})` and similar used to turn on file completion|File completion by default; `cmd.MarkFlagFilename(flag, []string{})` no longer needed in this context and silently ignored|
+|`cmd.MarkFlagFilename(flag, glob[])`  used to turn on file completion **with glob filtering** (syntax of `[]string{"*.yaml", "*.yml"}` incompatible with bash)|Will continue to work, however, support for bash syntax is added and should be used instead so as to work for all shells (`[]string{"yaml", "yml"}`)|
+|`cmd.MarkFlagDirname(flag)` only completes directories (zsh-specific)|Has been added for all shells|
+|Completion of a flag name does not repeat, unless flag is of type `*Array` or `*Slice` (not supported by bash)|Retained for `zsh` and added to `fish`|
+|Completion of a flag name does not provide the `=` form (unlike bash)|Retained for `zsh` and added to `fish`|
+
+**Improvements**
+
+* Custom completion support (`ValidArgsFunction` and `RegisterFlagCompletionFunc()`)
+* File completion by default if no other completions found
+* Handling of required flags
+* File extension filtering no longer mutually exclusive with bash usage
+* Completion of directory names *within* another directory
+* Support for `=` form of flags

vendor/github.com/spf13/pflag/.travis.yml

@@ -3,8 +3,9 @@ sudo: false
 language: go
 
 go:
-  - 1.7.3
+  - 1.9.x
-  - 1.8.1
+  - 1.10.x
+  - 1.11.x
   - tip
 
 matrix:
@@ -12,7 +13,7 @@ matrix:
     - go: tip
 
 install:
-  - go get github.com/golang/lint/golint
+  - go get golang.org/x/lint/golint
   - export PATH=$GOPATH/bin:$PATH
   - go install ./...
 

vendor/github.com/spf13/pflag/README.md

@@ -86,8 +86,8 @@ fmt.Println("ip has value ", *ip)
 fmt.Println("flagvar has value ", flagvar)
 ```
 
-There are helpers function to get values later if you have the FlagSet but
+There are helper functions available to get the value stored in a Flag if you have a FlagSet but find
-it was difficult to keep up with all of the flag pointers in your code.
+it difficult to keep up with all of the pointers in your code.
 If you have a pflag.FlagSet with a flag called 'flagname' of type int you
 can use GetInt() to get the int value. But notice that 'flagname' must exist
 and it must be an int. GetString("flagname") will fail.

vendor/github.com/spf13/pflag/bool_slice.go

@@ -71,6 +71,44 @@ func (s *boolSliceValue) String() string {
 	return "[" + out + "]"
 }
 
+func (s *boolSliceValue) fromString(val string) (bool, error) {
+	return strconv.ParseBool(val)
+}
+
+func (s *boolSliceValue) toString(val bool) string {
+	return strconv.FormatBool(val)
+}
+
+func (s *boolSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *boolSliceValue) Replace(val []string) error {
+	out := make([]bool, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *boolSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
 func boolSliceConv(val string) (interface{}, error) {
 	val = strings.Trim(val, "[]")
 	// Empty string would cause a slice with one (empty) entry

vendor/github.com/spf13/pflag/count.go

@@ -46,7 +46,7 @@ func (f *FlagSet) GetCount(name string) (int, error) {
 
 // CountVar defines a count flag with specified name, default value, and usage string.
 // The argument p points to an int variable in which to store the value of the flag.
-// A count flag will add 1 to its value evey time it is found on the command line
+// A count flag will add 1 to its value every time it is found on the command line
 func (f *FlagSet) CountVar(p *int, name string, usage string) {
 	f.CountVarP(p, name, "", usage)
 }
@@ -69,7 +69,7 @@ func CountVarP(p *int, name, shorthand string, usage string) {
 
 // Count defines a count flag with specified name, default value, and usage string.
 // The return value is the address of an int variable that stores the value of the flag.
-// A count flag will add 1 to its value evey time it is found on the command line
+// A count flag will add 1 to its value every time it is found on the command line
 func (f *FlagSet) Count(name string, usage string) *int {
 	p := new(int)
 	f.CountVarP(p, name, "", usage)

vendor/github.com/spf13/pflag/duration_slice.go

@@ -51,6 +51,44 @@ func (s *durationSliceValue) String() string {
 	return "[" + strings.Join(out, ",") + "]"
 }
 
+func (s *durationSliceValue) fromString(val string) (time.Duration, error) {
+	return time.ParseDuration(val)
+}
+
+func (s *durationSliceValue) toString(val time.Duration) string {
+	return fmt.Sprintf("%s", val)
+}
+
+func (s *durationSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *durationSliceValue) Replace(val []string) error {
+	out := make([]time.Duration, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *durationSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
 func durationSliceConv(val string) (interface{}, error) {
 	val = strings.Trim(val, "[]")
 	// Empty string would cause a slice with one (empty) entry

vendor/github.com/spf13/pflag/flag.go

@@ -57,9 +57,9 @@ that give one-letter shorthands for flags. You can use these by appending
 	var ip = flag.IntP("flagname", "f", 1234, "help message")
 	var flagvar bool
 	func init() {
-		flag.BoolVarP("boolname", "b", true, "help message")
+		flag.BoolVarP(&flagvar, "boolname", "b", true, "help message")
 	}
-	flag.VarP(&flagVar, "varname", "v", 1234, "help message")
+	flag.VarP(&flagval, "varname", "v", "help message")
 Shorthand letters can be used with single dashes on the command line.
 Boolean shorthand flags can be combined with other shorthand flags.
 
@@ -190,6 +190,18 @@ type Value interface {
 	Type() string
 }
 
+// SliceValue is a secondary interface to all flags which hold a list
+// of values.  This allows full control over the value of list flags,
+// and avoids complicated marshalling and unmarshalling to csv.
+type SliceValue interface {
+	// Append adds the specified value to the end of the flag value list.
+	Append(string) error
+	// Replace will fully overwrite any data currently in the flag value list.
+	Replace([]string) error
+	// GetSlice returns the flag value list as an array of strings.
+	GetSlice() []string
+}
+
 // sortFlags returns the flags as a slice in lexicographical sorted order.
 func sortFlags(flags map[NormalizedName]*Flag) []*Flag {
 	list := make(sort.StringSlice, len(flags))

vendor/github.com/spf13/pflag/float32_slice.go

@@ -0,0 +1,174 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- float32Slice Value
+type float32SliceValue struct {
+	value   *[]float32
+	changed bool
+}
+
+func newFloat32SliceValue(val []float32, p *[]float32) *float32SliceValue {
+	isv := new(float32SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *float32SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]float32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 float64
+		temp64, err = strconv.ParseFloat(d, 32)
+		if err != nil {
+			return err
+		}
+		out[i] = float32(temp64)
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *float32SliceValue) Type() string {
+	return "float32Slice"
+}
+
+func (s *float32SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%f", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *float32SliceValue) fromString(val string) (float32, error) {
+	t64, err := strconv.ParseFloat(val, 32)
+	if err != nil {
+		return 0, err
+	}
+	return float32(t64), nil
+}
+
+func (s *float32SliceValue) toString(val float32) string {
+	return fmt.Sprintf("%f", val)
+}
+
+func (s *float32SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *float32SliceValue) Replace(val []string) error {
+	out := make([]float32, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *float32SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func float32SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []float32{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]float32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 float64
+		temp64, err = strconv.ParseFloat(d, 32)
+		if err != nil {
+			return nil, err
+		}
+		out[i] = float32(temp64)
+
+	}
+	return out, nil
+}
+
+// GetFloat32Slice return the []float32 value of a flag with the given name
+func (f *FlagSet) GetFloat32Slice(name string) ([]float32, error) {
+	val, err := f.getFlagType(name, "float32Slice", float32SliceConv)
+	if err != nil {
+		return []float32{}, err
+	}
+	return val.([]float32), nil
+}
+
+// Float32SliceVar defines a float32Slice flag with specified name, default value, and usage string.
+// The argument p points to a []float32 variable in which to store the value of the flag.
+func (f *FlagSet) Float32SliceVar(p *[]float32, name string, value []float32, usage string) {
+	f.VarP(newFloat32SliceValue(value, p), name, "", usage)
+}
+
+// Float32SliceVarP is like Float32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32SliceVarP(p *[]float32, name, shorthand string, value []float32, usage string) {
+	f.VarP(newFloat32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float32SliceVar defines a float32[] flag with specified name, default value, and usage string.
+// The argument p points to a float32[] variable in which to store the value of the flag.
+func Float32SliceVar(p *[]float32, name string, value []float32, usage string) {
+	CommandLine.VarP(newFloat32SliceValue(value, p), name, "", usage)
+}
+
+// Float32SliceVarP is like Float32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Float32SliceVarP(p *[]float32, name, shorthand string, value []float32, usage string) {
+	CommandLine.VarP(newFloat32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float32Slice defines a []float32 flag with specified name, default value, and usage string.
+// The return value is the address of a []float32 variable that stores the value of the flag.
+func (f *FlagSet) Float32Slice(name string, value []float32, usage string) *[]float32 {
+	p := []float32{}
+	f.Float32SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Float32SliceP is like Float32Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float32SliceP(name, shorthand string, value []float32, usage string) *[]float32 {
+	p := []float32{}
+	f.Float32SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Float32Slice defines a []float32 flag with specified name, default value, and usage string.
+// The return value is the address of a []float32 variable that stores the value of the flag.
+func Float32Slice(name string, value []float32, usage string) *[]float32 {
+	return CommandLine.Float32SliceP(name, "", value, usage)
+}
+
+// Float32SliceP is like Float32Slice, but accepts a shorthand letter that can be used after a single dash.
+func Float32SliceP(name, shorthand string, value []float32, usage string) *[]float32 {
+	return CommandLine.Float32SliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/float64_slice.go

@@ -0,0 +1,166 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- float64Slice Value
+type float64SliceValue struct {
+	value   *[]float64
+	changed bool
+}
+
+func newFloat64SliceValue(val []float64, p *[]float64) *float64SliceValue {
+	isv := new(float64SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *float64SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]float64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseFloat(d, 64)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *float64SliceValue) Type() string {
+	return "float64Slice"
+}
+
+func (s *float64SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%f", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *float64SliceValue) fromString(val string) (float64, error) {
+	return strconv.ParseFloat(val, 64)
+}
+
+func (s *float64SliceValue) toString(val float64) string {
+	return fmt.Sprintf("%f", val)
+}
+
+func (s *float64SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *float64SliceValue) Replace(val []string) error {
+	out := make([]float64, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *float64SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func float64SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []float64{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]float64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseFloat(d, 64)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetFloat64Slice return the []float64 value of a flag with the given name
+func (f *FlagSet) GetFloat64Slice(name string) ([]float64, error) {
+	val, err := f.getFlagType(name, "float64Slice", float64SliceConv)
+	if err != nil {
+		return []float64{}, err
+	}
+	return val.([]float64), nil
+}
+
+// Float64SliceVar defines a float64Slice flag with specified name, default value, and usage string.
+// The argument p points to a []float64 variable in which to store the value of the flag.
+func (f *FlagSet) Float64SliceVar(p *[]float64, name string, value []float64, usage string) {
+	f.VarP(newFloat64SliceValue(value, p), name, "", usage)
+}
+
+// Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {
+	f.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float64SliceVar defines a float64[] flag with specified name, default value, and usage string.
+// The argument p points to a float64[] variable in which to store the value of the flag.
+func Float64SliceVar(p *[]float64, name string, value []float64, usage string) {
+	CommandLine.VarP(newFloat64SliceValue(value, p), name, "", usage)
+}
+
+// Float64SliceVarP is like Float64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Float64SliceVarP(p *[]float64, name, shorthand string, value []float64, usage string) {
+	CommandLine.VarP(newFloat64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Float64Slice defines a []float64 flag with specified name, default value, and usage string.
+// The return value is the address of a []float64 variable that stores the value of the flag.
+func (f *FlagSet) Float64Slice(name string, value []float64, usage string) *[]float64 {
+	p := []float64{}
+	f.Float64SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {
+	p := []float64{}
+	f.Float64SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Float64Slice defines a []float64 flag with specified name, default value, and usage string.
+// The return value is the address of a []float64 variable that stores the value of the flag.
+func Float64Slice(name string, value []float64, usage string) *[]float64 {
+	return CommandLine.Float64SliceP(name, "", value, usage)
+}
+
+// Float64SliceP is like Float64Slice, but accepts a shorthand letter that can be used after a single dash.
+func Float64SliceP(name, shorthand string, value []float64, usage string) *[]float64 {
+	return CommandLine.Float64SliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int32_slice.go

@@ -0,0 +1,174 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- int32Slice Value
+type int32SliceValue struct {
+	value   *[]int32
+	changed bool
+}
+
+func newInt32SliceValue(val []int32, p *[]int32) *int32SliceValue {
+	isv := new(int32SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *int32SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]int32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 int64
+		temp64, err = strconv.ParseInt(d, 0, 32)
+		if err != nil {
+			return err
+		}
+		out[i] = int32(temp64)
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *int32SliceValue) Type() string {
+	return "int32Slice"
+}
+
+func (s *int32SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *int32SliceValue) fromString(val string) (int32, error) {
+	t64, err := strconv.ParseInt(val, 0, 32)
+	if err != nil {
+		return 0, err
+	}
+	return int32(t64), nil
+}
+
+func (s *int32SliceValue) toString(val int32) string {
+	return fmt.Sprintf("%d", val)
+}
+
+func (s *int32SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *int32SliceValue) Replace(val []string) error {
+	out := make([]int32, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *int32SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func int32SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []int32{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]int32, len(ss))
+	for i, d := range ss {
+		var err error
+		var temp64 int64
+		temp64, err = strconv.ParseInt(d, 0, 32)
+		if err != nil {
+			return nil, err
+		}
+		out[i] = int32(temp64)
+
+	}
+	return out, nil
+}
+
+// GetInt32Slice return the []int32 value of a flag with the given name
+func (f *FlagSet) GetInt32Slice(name string) ([]int32, error) {
+	val, err := f.getFlagType(name, "int32Slice", int32SliceConv)
+	if err != nil {
+		return []int32{}, err
+	}
+	return val.([]int32), nil
+}
+
+// Int32SliceVar defines a int32Slice flag with specified name, default value, and usage string.
+// The argument p points to a []int32 variable in which to store the value of the flag.
+func (f *FlagSet) Int32SliceVar(p *[]int32, name string, value []int32, usage string) {
+	f.VarP(newInt32SliceValue(value, p), name, "", usage)
+}
+
+// Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) {
+	f.VarP(newInt32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int32SliceVar defines a int32[] flag with specified name, default value, and usage string.
+// The argument p points to a int32[] variable in which to store the value of the flag.
+func Int32SliceVar(p *[]int32, name string, value []int32, usage string) {
+	CommandLine.VarP(newInt32SliceValue(value, p), name, "", usage)
+}
+
+// Int32SliceVarP is like Int32SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Int32SliceVarP(p *[]int32, name, shorthand string, value []int32, usage string) {
+	CommandLine.VarP(newInt32SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int32Slice defines a []int32 flag with specified name, default value, and usage string.
+// The return value is the address of a []int32 variable that stores the value of the flag.
+func (f *FlagSet) Int32Slice(name string, value []int32, usage string) *[]int32 {
+	p := []int32{}
+	f.Int32SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 {
+	p := []int32{}
+	f.Int32SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Int32Slice defines a []int32 flag with specified name, default value, and usage string.
+// The return value is the address of a []int32 variable that stores the value of the flag.
+func Int32Slice(name string, value []int32, usage string) *[]int32 {
+	return CommandLine.Int32SliceP(name, "", value, usage)
+}
+
+// Int32SliceP is like Int32Slice, but accepts a shorthand letter that can be used after a single dash.
+func Int32SliceP(name, shorthand string, value []int32, usage string) *[]int32 {
+	return CommandLine.Int32SliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int64_slice.go

@@ -0,0 +1,166 @@
+package pflag
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- int64Slice Value
+type int64SliceValue struct {
+	value   *[]int64
+	changed bool
+}
+
+func newInt64SliceValue(val []int64, p *[]int64) *int64SliceValue {
+	isv := new(int64SliceValue)
+	isv.value = p
+	*isv.value = val
+	return isv
+}
+
+func (s *int64SliceValue) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make([]int64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseInt(d, 0, 64)
+		if err != nil {
+			return err
+		}
+
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		*s.value = append(*s.value, out...)
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *int64SliceValue) Type() string {
+	return "int64Slice"
+}
+
+func (s *int64SliceValue) String() string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = fmt.Sprintf("%d", d)
+	}
+	return "[" + strings.Join(out, ",") + "]"
+}
+
+func (s *int64SliceValue) fromString(val string) (int64, error) {
+	return strconv.ParseInt(val, 0, 64)
+}
+
+func (s *int64SliceValue) toString(val int64) string {
+	return fmt.Sprintf("%d", val)
+}
+
+func (s *int64SliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *int64SliceValue) Replace(val []string) error {
+	out := make([]int64, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *int64SliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
+func int64SliceConv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// Empty string would cause a slice with one (empty) entry
+	if len(val) == 0 {
+		return []int64{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make([]int64, len(ss))
+	for i, d := range ss {
+		var err error
+		out[i], err = strconv.ParseInt(d, 0, 64)
+		if err != nil {
+			return nil, err
+		}
+
+	}
+	return out, nil
+}
+
+// GetInt64Slice return the []int64 value of a flag with the given name
+func (f *FlagSet) GetInt64Slice(name string) ([]int64, error) {
+	val, err := f.getFlagType(name, "int64Slice", int64SliceConv)
+	if err != nil {
+		return []int64{}, err
+	}
+	return val.([]int64), nil
+}
+
+// Int64SliceVar defines a int64Slice flag with specified name, default value, and usage string.
+// The argument p points to a []int64 variable in which to store the value of the flag.
+func (f *FlagSet) Int64SliceVar(p *[]int64, name string, value []int64, usage string) {
+	f.VarP(newInt64SliceValue(value, p), name, "", usage)
+}
+
+// Int64SliceVarP is like Int64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64SliceVarP(p *[]int64, name, shorthand string, value []int64, usage string) {
+	f.VarP(newInt64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int64SliceVar defines a int64[] flag with specified name, default value, and usage string.
+// The argument p points to a int64[] variable in which to store the value of the flag.
+func Int64SliceVar(p *[]int64, name string, value []int64, usage string) {
+	CommandLine.VarP(newInt64SliceValue(value, p), name, "", usage)
+}
+
+// Int64SliceVarP is like Int64SliceVar, but accepts a shorthand letter that can be used after a single dash.
+func Int64SliceVarP(p *[]int64, name, shorthand string, value []int64, usage string) {
+	CommandLine.VarP(newInt64SliceValue(value, p), name, shorthand, usage)
+}
+
+// Int64Slice defines a []int64 flag with specified name, default value, and usage string.
+// The return value is the address of a []int64 variable that stores the value of the flag.
+func (f *FlagSet) Int64Slice(name string, value []int64, usage string) *[]int64 {
+	p := []int64{}
+	f.Int64SliceVarP(&p, name, "", value, usage)
+	return &p
+}
+
+// Int64SliceP is like Int64Slice, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) Int64SliceP(name, shorthand string, value []int64, usage string) *[]int64 {
+	p := []int64{}
+	f.Int64SliceVarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// Int64Slice defines a []int64 flag with specified name, default value, and usage string.
+// The return value is the address of a []int64 variable that stores the value of the flag.
+func Int64Slice(name string, value []int64, usage string) *[]int64 {
+	return CommandLine.Int64SliceP(name, "", value, usage)
+}
+
+// Int64SliceP is like Int64Slice, but accepts a shorthand letter that can be used after a single dash.
+func Int64SliceP(name, shorthand string, value []int64, usage string) *[]int64 {
+	return CommandLine.Int64SliceP(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/int_slice.go

@@ -51,6 +51,36 @@ func (s *intSliceValue) String() string {
 	return "[" + strings.Join(out, ",") + "]"
 }
 
+func (s *intSliceValue) Append(val string) error {
+	i, err := strconv.Atoi(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *intSliceValue) Replace(val []string) error {
+	out := make([]int, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = strconv.Atoi(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *intSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = strconv.Itoa(d)
+	}
+	return out
+}
+
 func intSliceConv(val string) (interface{}, error) {
 	val = strings.Trim(val, "[]")
 	// Empty string would cause a slice with one (empty) entry

vendor/github.com/spf13/pflag/ip_slice.go

@@ -72,9 +72,47 @@ func (s *ipSliceValue) String() string {
 	return "[" + out + "]"
 }
 
+func (s *ipSliceValue) fromString(val string) (net.IP, error) {
+	return net.ParseIP(strings.TrimSpace(val)), nil
+}
+
+func (s *ipSliceValue) toString(val net.IP) string {
+	return val.String()
+}
+
+func (s *ipSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *ipSliceValue) Replace(val []string) error {
+	out := make([]net.IP, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *ipSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
 func ipSliceConv(val string) (interface{}, error) {
 	val = strings.Trim(val, "[]")
-	// Emtpy string would cause a slice with one (empty) entry
+	// Empty string would cause a slice with one (empty) entry
 	if len(val) == 0 {
 		return []net.IP{}, nil
 	}

vendor/github.com/spf13/pflag/string_array.go

@@ -23,6 +23,32 @@ func (s *stringArrayValue) Set(val string) error {
 	return nil
 }
 
+func (s *stringArrayValue) Append(val string) error {
+	*s.value = append(*s.value, val)
+	return nil
+}
+
+func (s *stringArrayValue) Replace(val []string) error {
+	out := make([]string, len(val))
+	for i, d := range val {
+		var err error
+		out[i] = d
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *stringArrayValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = d
+	}
+	return out
+}
+
 func (s *stringArrayValue) Type() string {
 	return "stringArray"
 }

vendor/github.com/spf13/pflag/string_slice.go

@@ -62,6 +62,20 @@ func (s *stringSliceValue) String() string {
 	return "[" + str + "]"
 }
 
+func (s *stringSliceValue) Append(val string) error {
+	*s.value = append(*s.value, val)
+	return nil
+}
+
+func (s *stringSliceValue) Replace(val []string) error {
+	*s.value = val
+	return nil
+}
+
+func (s *stringSliceValue) GetSlice() []string {
+	return *s.value
+}
+
 func stringSliceConv(sval string) (interface{}, error) {
 	sval = sval[1 : len(sval)-1]
 	// An empty string would cause a slice with one (empty) string
@@ -84,7 +98,7 @@ func (f *FlagSet) GetStringSlice(name string) ([]string, error) {
 // The argument p points to a []string variable in which to store the value of the flag.
 // Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
 // For example:
-//   --ss="v1,v2" -ss="v3"
+//   --ss="v1,v2" --ss="v3"
 // will result in
 //   []string{"v1", "v2", "v3"}
 func (f *FlagSet) StringSliceVar(p *[]string, name string, value []string, usage string) {
@@ -100,7 +114,7 @@ func (f *FlagSet) StringSliceVarP(p *[]string, name, shorthand string, value []s
 // The argument p points to a []string variable in which to store the value of the flag.
 // Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
 // For example:
-//   --ss="v1,v2" -ss="v3"
+//   --ss="v1,v2" --ss="v3"
 // will result in
 //   []string{"v1", "v2", "v3"}
 func StringSliceVar(p *[]string, name string, value []string, usage string) {
@@ -116,7 +130,7 @@ func StringSliceVarP(p *[]string, name, shorthand string, value []string, usage
 // The return value is the address of a []string variable that stores the value of the flag.
 // Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
 // For example:
-//   --ss="v1,v2" -ss="v3"
+//   --ss="v1,v2" --ss="v3"
 // will result in
 //   []string{"v1", "v2", "v3"}
 func (f *FlagSet) StringSlice(name string, value []string, usage string) *[]string {
@@ -136,7 +150,7 @@ func (f *FlagSet) StringSliceP(name, shorthand string, value []string, usage str
 // The return value is the address of a []string variable that stores the value of the flag.
 // Compared to StringArray flags, StringSlice flags take comma-separated value as arguments and split them accordingly.
 // For example:
-//   --ss="v1,v2" -ss="v3"
+//   --ss="v1,v2" --ss="v3"
 // will result in
 //   []string{"v1", "v2", "v3"}
 func StringSlice(name string, value []string, usage string) *[]string {

vendor/github.com/spf13/pflag/string_to_int64.go

@@ -0,0 +1,149 @@
+package pflag
+
+import (
+	"bytes"
+	"fmt"
+	"strconv"
+	"strings"
+)
+
+// -- stringToInt64 Value
+type stringToInt64Value struct {
+	value   *map[string]int64
+	changed bool
+}
+
+func newStringToInt64Value(val map[string]int64, p *map[string]int64) *stringToInt64Value {
+	ssv := new(stringToInt64Value)
+	ssv.value = p
+	*ssv.value = val
+	return ssv
+}
+
+// Format: a=1,b=2
+func (s *stringToInt64Value) Set(val string) error {
+	ss := strings.Split(val, ",")
+	out := make(map[string]int64, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		var err error
+		out[kv[0]], err = strconv.ParseInt(kv[1], 10, 64)
+		if err != nil {
+			return err
+		}
+	}
+	if !s.changed {
+		*s.value = out
+	} else {
+		for k, v := range out {
+			(*s.value)[k] = v
+		}
+	}
+	s.changed = true
+	return nil
+}
+
+func (s *stringToInt64Value) Type() string {
+	return "stringToInt64"
+}
+
+func (s *stringToInt64Value) String() string {
+	var buf bytes.Buffer
+	i := 0
+	for k, v := range *s.value {
+		if i > 0 {
+			buf.WriteRune(',')
+		}
+		buf.WriteString(k)
+		buf.WriteRune('=')
+		buf.WriteString(strconv.FormatInt(v, 10))
+		i++
+	}
+	return "[" + buf.String() + "]"
+}
+
+func stringToInt64Conv(val string) (interface{}, error) {
+	val = strings.Trim(val, "[]")
+	// An empty string would cause an empty map
+	if len(val) == 0 {
+		return map[string]int64{}, nil
+	}
+	ss := strings.Split(val, ",")
+	out := make(map[string]int64, len(ss))
+	for _, pair := range ss {
+		kv := strings.SplitN(pair, "=", 2)
+		if len(kv) != 2 {
+			return nil, fmt.Errorf("%s must be formatted as key=value", pair)
+		}
+		var err error
+		out[kv[0]], err = strconv.ParseInt(kv[1], 10, 64)
+		if err != nil {
+			return nil, err
+		}
+	}
+	return out, nil
+}
+
+// GetStringToInt64 return the map[string]int64 value of a flag with the given name
+func (f *FlagSet) GetStringToInt64(name string) (map[string]int64, error) {
+	val, err := f.getFlagType(name, "stringToInt64", stringToInt64Conv)
+	if err != nil {
+		return map[string]int64{}, err
+	}
+	return val.(map[string]int64), nil
+}
+
+// StringToInt64Var defines a string flag with specified name, default value, and usage string.
+// The argument p point64s to a map[string]int64 variable in which to store the values of the multiple flags.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToInt64Var(p *map[string]int64, name string, value map[string]int64, usage string) {
+	f.VarP(newStringToInt64Value(value, p), name, "", usage)
+}
+
+// StringToInt64VarP is like StringToInt64Var, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToInt64VarP(p *map[string]int64, name, shorthand string, value map[string]int64, usage string) {
+	f.VarP(newStringToInt64Value(value, p), name, shorthand, usage)
+}
+
+// StringToInt64Var defines a string flag with specified name, default value, and usage string.
+// The argument p point64s to a map[string]int64 variable in which to store the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToInt64Var(p *map[string]int64, name string, value map[string]int64, usage string) {
+	CommandLine.VarP(newStringToInt64Value(value, p), name, "", usage)
+}
+
+// StringToInt64VarP is like StringToInt64Var, but accepts a shorthand letter that can be used after a single dash.
+func StringToInt64VarP(p *map[string]int64, name, shorthand string, value map[string]int64, usage string) {
+	CommandLine.VarP(newStringToInt64Value(value, p), name, shorthand, usage)
+}
+
+// StringToInt64 defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]int64 variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func (f *FlagSet) StringToInt64(name string, value map[string]int64, usage string) *map[string]int64 {
+	p := map[string]int64{}
+	f.StringToInt64VarP(&p, name, "", value, usage)
+	return &p
+}
+
+// StringToInt64P is like StringToInt64, but accepts a shorthand letter that can be used after a single dash.
+func (f *FlagSet) StringToInt64P(name, shorthand string, value map[string]int64, usage string) *map[string]int64 {
+	p := map[string]int64{}
+	f.StringToInt64VarP(&p, name, shorthand, value, usage)
+	return &p
+}
+
+// StringToInt64 defines a string flag with specified name, default value, and usage string.
+// The return value is the address of a map[string]int64 variable that stores the value of the flag.
+// The value of each argument will not try to be separated by comma
+func StringToInt64(name string, value map[string]int64, usage string) *map[string]int64 {
+	return CommandLine.StringToInt64P(name, "", value, usage)
+}
+
+// StringToInt64P is like StringToInt64, but accepts a shorthand letter that can be used after a single dash.
+func StringToInt64P(name, shorthand string, value map[string]int64, usage string) *map[string]int64 {
+	return CommandLine.StringToInt64P(name, shorthand, value, usage)
+}

vendor/github.com/spf13/pflag/uint_slice.go

@@ -50,6 +50,48 @@ func (s *uintSliceValue) String() string {
 	return "[" + strings.Join(out, ",") + "]"
 }
 
+func (s *uintSliceValue) fromString(val string) (uint, error) {
+	t, err := strconv.ParseUint(val, 10, 0)
+	if err != nil {
+		return 0, err
+	}
+	return uint(t), nil
+}
+
+func (s *uintSliceValue) toString(val uint) string {
+	return fmt.Sprintf("%d", val)
+}
+
+func (s *uintSliceValue) Append(val string) error {
+	i, err := s.fromString(val)
+	if err != nil {
+		return err
+	}
+	*s.value = append(*s.value, i)
+	return nil
+}
+
+func (s *uintSliceValue) Replace(val []string) error {
+	out := make([]uint, len(val))
+	for i, d := range val {
+		var err error
+		out[i], err = s.fromString(d)
+		if err != nil {
+			return err
+		}
+	}
+	*s.value = out
+	return nil
+}
+
+func (s *uintSliceValue) GetSlice() []string {
+	out := make([]string, len(*s.value))
+	for i, d := range *s.value {
+		out[i] = s.toString(d)
+	}
+	return out
+}
+
 func uintSliceConv(val string) (interface{}, error) {
 	val = strings.Trim(val, "[]")
 	// Empty string would cause a slice with one (empty) entry

vendor/modules.txt

@@ -154,8 +154,8 @@ github.com/gorilla/mux
 ## explicit; go 1.12
 github.com/hashicorp/golang-lru
 github.com/hashicorp/golang-lru/simplelru
-# github.com/inconshreveable/mousetrap v1.0.0
+# github.com/inconshreveable/mousetrap v1.0.1
-## explicit
+## explicit; go 1.18
 github.com/inconshreveable/mousetrap
 # github.com/jmespath/go-jmespath v0.4.0
 ## explicit; go 1.14
@@ -207,11 +207,11 @@ github.com/prometheus/procfs/internal/util
 # github.com/sirupsen/logrus v1.8.1
 ## explicit; go 1.13
 github.com/sirupsen/logrus
-# github.com/spf13/cobra v1.0.0
+# github.com/spf13/cobra v1.6.1
-## explicit; go 1.12
+## explicit; go 1.15
 github.com/spf13/cobra
-# github.com/spf13/pflag v1.0.3
+# github.com/spf13/pflag v1.0.5
-## explicit
+## explicit; go 1.12
 github.com/spf13/pflag
 # github.com/yvasiyarov/go-metrics v0.0.0-20140926110328-57bccd1ccd43
 ## explicit