1 #!/usr/bin/env python 2 # Copyright (c) 2009 The Chromium Authors. All rights reserved. 3 # Use of this source code is governed by a BSD-style license that can be 4 # found in the LICENSE file. 5 6 # Extracts a single file from a CAB archive. 7 8 import os 9 import subprocess 10 import sys 11 12 if len(sys.argv) != 4: 13 print 'Usage: extract_from_cab.py cab_path archived_file output_dir' 14 sys.exit(1) 15 16 [cab_path, archived_file, output_dir] = sys.argv[1:] 17 18 # Invoke the Windows expand utility to extract the file. 19 level = subprocess.call(['expand', cab_path, '-F:' + archived_file, output_dir]) 20 if level != 0: 21 sys.exit(level) 22 23 # The expand utility preserves the modification date and time of the archived 24 # file. Touch the extracted file. This helps build systems that compare the 25 # modification times of input and output files to determine whether to do an 26 # action. 27 os.utime(os.path.join(output_dir, archived_file), None) 28