tools/git/mass-rename.py

   1 #!/usr/bin/env python
   2 # Copyright 2013 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 """
   7 mass-rename: update source files (gyp lists, #includes) to reflect
   8 a rename.  Expects "git diff --cached -M" to list a bunch of renames.
   9
  10 To use:
  11   1) git mv foo1 bar1; git mv foo2 bar2; etc.
  12   2) *without committing*, ./tools/git/mass-rename.py
  13   3) look at git diff (without --cached) to see what the damage is
  14 """
  15
  16
  17 import os
  18 import subprocess
  19 import sys
  20
  21
  22 BASE_DIR = os.path.abspath(os.path.dirname(__file__))
  23
  24
  25 def main():
  26   popen = subprocess.Popen('git diff --cached --raw -M',
  27                            shell=True, stdout=subprocess.PIPE)
  28   out, _ = popen.communicate()
  29   if popen.returncode != 0:
  30     return 1
  31   for line in out.splitlines():
  32     parts = line.split('\t')
  33     if len(parts) != 3:
  34       print 'Skipping: %s -- not a rename?' % parts
  35       continue
  36     attrs, fro, to = parts
  37     if attrs.split()[4].startswith('R'):
  38       subprocess.check_call([
  39         sys.executable,
  40         os.path.join(BASE_DIR, 'move_source_file.py'),
  41         '--already_moved',
  42         '--no_error_for_non_source_file',
  43         fro, to])
  44     else:
  45       print 'Skipping: %s -- not a rename?' % fro
  46   return 0
  47
  48
  49 if __name__ == '__main__':
  50   sys.exit(main())