1 files changed, 45 insertions, 0 deletions
diff --git a/tools/git/mass-rename.py b/tools/git/mass-rename.py
new file mode 100644
index 0000000..b499654
--- /dev/null
+++ b/tools/git/mass-rename.py
@@ -0,0 +1,45 @@
+#!/usr/bin/env python
+# Copyright 2013 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.
+
+"""
+mass-rename: update source files (gyp lists, #includes) to reflect
+a rename.  Expects "git diff --cached -M" to list a bunch of renames.
+
+To use:
+  1) git mv foo1 bar1; git mv foo2 bar2; etc.
+  2) *without committing*, ./tools/git/mass-rename.py
+  3) look at git diff (without --cached) to see what the damage is
+"""
+
+
+import os
+import subprocess
+import sys
+
+
+BASE_DIR = os.path.abspath(os.path.dirname(__file__))
+
+
+def main():
+  popen = subprocess.Popen(['git', 'diff', '--cached', '--raw', '-M'],
+                           shell=True, stdout=subprocess.PIPE)
+  out, _ = popen.communicate()
+  if popen.returncode != 0:
+    return 1
+  for line in out.splitlines():
+    attrs, fro, to = line.split('\t')
+    if attrs.split()[4].startswith('R'):
+      subprocess.check_call([
+        sys.executable,
+        os.path.join(BASE_DIR, 'move_source_file.py'),
+        '--already-moved',
+        fro, to])
+    else:
+      print "Skipping: %s -- not a rename?" % fro
+  return 0
+
+
+if __name__ == '__main__':
+  sys.exit(main())