1 # Copyright (c) 2012 Google Inc. All rights reserved. 2 # Use of this source code is governed by a BSD-style license that can be 3 # found in the LICENSE file. 4 5 import os 6 import sys 7 8 if not os.path.exists(sys.argv[1]): 9 raise 10 open(sys.argv[2], 'w').close() 11