cipd2isolate: Initial CLI parsing boilerplate.

cipd/client/cmd/cipd2isolate/isolate.go

+// Copyright 2017 The LUCI Authors. All rights reserved.
+// Use of this source code is governed under the Apache License, Version 2.0
+// that can be found in the LICENSE file.
+
+package main
+
+import (
+        "golang.org/x/net/context"
+
+        "github.com/luci/luci-go/cipd/client/cipd"
+        "github.com/luci/luci-go/cipd/client/cipd/ensure"
+        "github.com/luci/luci-go/common/isolatedclient"
+        "github.com/luci/luci-go/common/logging"
+)
+
+// isolateCipdPackages is implementation of cipd2isolate logic.
+//
+// It takes parsed (but not yet resolved) ensure file, preconfigured
+// CIPD and isolated clients, and does all the work.
+func isolateCipdPackages(c context.Context, f *ensure.File, cc cipd.Client, ic *isolatedclient.Client) error {
+        logging.Infof(c, "TODO")
+        return nil
+}