tools/remove_stale_pyc_files.py

   1 #!/usr/bin/env python
   2 # Copyright 2014 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 import os
   7 import sys
   8
   9
  10 def RemoveAllStalePycFiles(base_dir):
  11   """Scan directories for old .pyc files without a .py file and delete them."""
  12   for dirname, _, filenames in os.walk(base_dir):
  13     if '.svn' in dirname or '.git' in dirname:
  14       continue
  15     for filename in filenames:
  16       root, ext = os.path.splitext(filename)
  17       if ext != '.pyc':
  18         continue
  19
  20       pyc_path = os.path.join(dirname, filename)
  21       py_path = os.path.join(dirname, root + '.py')
  22
  23       try:
  24         if not os.path.exists(py_path):
  25           os.remove(pyc_path)
  26       except OSError:
  27         # Wrap OS calls in try/except in case another process touched this file.
  28         pass
  29
  30     try:
  31       os.removedirs(dirname)
  32     except OSError:
  33       # Wrap OS calls in try/except in case another process touched this dir.
  34       pass
  35
  36
  37 if __name__ == '__main__':
  38   for path in sys.argv[1:]:
  39     RemoveAllStalePycFiles(path)