Vendor dependencies for GCS

vendor/google.golang.org/api/examples/debug.go

@@ -0,0 +1,86 @@
+// Copyright 2017 Google Inc. All Rights Reserved.
+//
+// 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 main
+
+import (
+	"bytes"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"net/http"
+	"os"
+)
+
+type logTransport struct {
+	rt http.RoundTripper
+}
+
+func (t *logTransport) RoundTrip(req *http.Request) (*http.Response, error) {
+	var buf bytes.Buffer
+
+	os.Stdout.Write([]byte("\n[request]\n"))
+	if req.Body != nil {
+		req.Body = ioutil.NopCloser(&readButCopy{req.Body, &buf})
+	}
+	req.Write(os.Stdout)
+	if req.Body != nil {
+		req.Body = ioutil.NopCloser(&buf)
+	}
+	os.Stdout.Write([]byte("\n[/request]\n"))
+
+	res, err := t.rt.RoundTrip(req)
+
+	fmt.Printf("[response]\n")
+	if err != nil {
+		fmt.Printf("ERROR: %v", err)
+	} else {
+		body := res.Body
+		res.Body = nil
+		res.Write(os.Stdout)
+		if body != nil {
+			res.Body = ioutil.NopCloser(&echoAsRead{body})
+		}
+	}
+
+	return res, err
+}
+
+type echoAsRead struct {
+	src io.Reader
+}
+
+func (r *echoAsRead) Read(p []byte) (int, error) {
+	n, err := r.src.Read(p)
+	if n > 0 {
+		os.Stdout.Write(p[:n])
+	}
+	if err == io.EOF {
+		fmt.Printf("\n[/response]\n")
+	}
+	return n, err
+}
+
+type readButCopy struct {
+	src io.Reader
+	dst io.Writer
+}
+
+func (r *readButCopy) Read(p []byte) (int, error) {
+	n, err := r.src.Read(p)
+	if n > 0 {
+		r.dst.Write(p[:n])
+	}
+	return n, err
+}