Move find_depot_tools.py to build/

build/find_depot_tools.py

+#!/usr/bin/env python
 # Copyright (c) 2011 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.
 """Small utility function to find depot_tools and add it to the python path.
 
 Will throw an ImportError exception if depot_tools can't be found since it
 imports breakpad.
+
+This can also be used as a standalone script to print out the depot_tools
+directory location.
 """
 
 import os
 import sys
 
 
 def IsRealDepotTools(path):
   return os.path.isfile(os.path.join(path, 'gclient.py'))
 
 
@@ skipping 14 matching lines @@
   while root_dir and root_dir != previous_dir:
     i = os.path.join(root_dir, 'depot_tools')
     if IsRealDepotTools(i):
       sys.path.append(i)
       return i
     previous_dir = root_dir
     root_dir = os.path.dirname(root_dir)
   print >> sys.stderr, 'Failed to find depot_tools'
   return None
 
-add_depot_tools_to_path()
+DEPOT_TOOLS_PATH = add_depot_tools_to_path()
 
 # pylint: disable=W0611
 import breakpad
+
+
+def main():
+  if DEPOT_TOOLS_PATH is None:
+    return 1
+  print DEPOT_TOOLS_PATH
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())