Clobber the upcoming gclient CIPD root.

Bug: 755920
Change-Id: I8f500c336168c3d92e19e3917aeaa8e78b5cf4c7
Reviewed-on: https://chromium-review.googlesource.com/977327
Commit-Queue: John Budorick <jbudorick@chromium.org>
Reviewed-by: Shenghua Zhang <shenghuazhang@chromium.org>
Reviewed-by: agrieve <agrieve@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#545365}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 366124fe7241d1adbc57681061517edf8f6a65a1

cipd/clobber_cipd_root.py

@@ -0,0 +1,33 @@
+#!/usr/bin/env python
+#
+# Copyright 2018 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.
+
+"""Clobbers a CIPD root."""
+
+import argparse
+import os
+import shutil
+import sys
+
+
+def main():
+  parser = argparse.ArgumentParser(
+      description='Clobbers the CIPD root in the given directory.')
+
+  parser.add_argument(
+      '--root',
+      required=True,
+      help='Root directory for dependency.')
+  args = parser.parse_args()
+
+  cipd_root_dir = os.path.join(args.root, '.cipd')
+  if os.path.exists(cipd_root_dir):
+    shutil.rmtree(cipd_root_dir)
+
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())