Add beginnings of new cr command

go/src/infra/tools/cr/cmd/help/help.go

+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+/*
+Root command of the SDK; does most of the heavy lifting.
+*/
+
+package help
+
+import (
+        "os"
+)
+
+// Variables for flags which apply to all subcommands
+var verbose int
+
+// RootCmd is the root of the command tree. All subcommands attach to this one.
+// Also defines some persistent flags which are available to all subcommands.
+// Does not have a top-level Run function; instead just prints Usage.
+var RootCmd = &cobra.Command{

[seanmccullough1, 2016/04/29 00:54:36]

where is cobra imported?  

[agable, 2016/05/05 23:59:42]

This whole file is gone (old patchset).

+        Use:   "cr",
+        Short: "Entry point and module manager for the Chromium command-line SDK",
+        Long: `Entry point and module manager for the Chromium command-line SDK.
+
+Run "cr help", "cr help [command]", or "cr [command] --help" for documentation.`,
+}
+
+// Execute crawls the tree of commands (starting at RootCmd) to find the
+// appropriate function to execute. Prints usage is none is found.
+func Execute() {
+        ctx := context.Background()
+        ctx = gologger.StdConfig.Use(ctx)
+        if err := RootCmd.Execute(); err != nil {
+                logging.Errorf(ctx, "%v\n", err)
+                os.Exit(-1)
+        }
+}
+
+func init() {
+        RootCmd.PersistentFlags().CountVarP(&verbose, "verbose", "v", "Turn on verbose logging")
+}