added vendors

vendor/github.com/googleapis/gnostic/apps/report-messages/README.md

@@ -0,0 +1,5 @@
+# report-messages tool
+
+This directory contains a command-line tool that provides a text
+report listing the messages in a gnostic messages file.
+

vendor/github.com/googleapis/gnostic/apps/report-messages/main.go

@@ -0,0 +1,69 @@
+// Copyright 2018 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.
+
+// Filter and display messages produced by gnostic invocations.
+package main
+
+import (
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"os"
+
+	"github.com/golang/protobuf/proto"
+	"github.com/googleapis/gnostic/printer"
+
+	plugins "github.com/googleapis/gnostic/plugins"
+)
+
+func readMessagesFromFileWithName(filename string) *plugins.Messages {
+	data, err := ioutil.ReadFile(filename)
+	if err != nil {
+		fmt.Printf("File error: %v\n", err)
+		os.Exit(1)
+	}
+	messages := &plugins.Messages{}
+	err = proto.Unmarshal(data, messages)
+	if err != nil {
+		panic(err)
+	}
+	return messages
+}
+
+func printMessages(code *printer.Code, messages *plugins.Messages) {
+	for _, message := range messages.Messages {
+		line := fmt.Sprintf("%-7s %-14s %s %+v", 
+				message.Level,
+				message.Code,
+				message.Text,
+				message.Keys)
+		code.Print(line)
+        }
+}
+
+func main() {
+	flag.Parse()
+	args := flag.Args()
+
+	if len(args) != 1 {
+		fmt.Printf("Usage: report-messages <file.pb>\n")
+		return
+	}
+
+	messages := readMessagesFromFileWithName(args[0])
+
+	code := &printer.Code{}
+	printMessages(code, messages)
+	fmt.Printf("%s", code)
+}