Linux: add script to remove bundled libraries.

build/linux/unbundle/remove_bundled_libraries.py

+#!/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.
+
+"""
+Removes bundled libraries to make sure they are not used.
+"""
+
+
+import os.path
+import sys
+
+
+def DoMain(argv):
+  my_dirname = os.path.dirname(__file__)
+  source_tree_root = os.path.abspath(

[Lei Zhang, 2013/08/21 01:27:03]

Please add some sanity checks to prevent this script from running amok:
- make sure os.path.join(source_tree_root, 'build', 'linux') == my_dirname
- make sure |source_tree_root| doesn't have a '.svn' or '.git' directory.

+    os.path.join(my_dirname, '..', '..', '..'))
+
+  exclusion_used = {}
+  for exclusion in argv:
+    exclusion_used[exclusion] = False
+
+  for root, dirs, files in os.walk(source_tree_root, topdown=False):
+    # Only look at paths which contain a "third_party" component
+    # (note that e.g. third_party.png doesn't count).
+    root_relpath = os.path.relpath(root, source_tree_root)
+    if 'third_party' not in root_relpath.split(os.sep):
+      continue
+
+    for f in files:
+      path = os.path.join(root, f)
+      relpath = os.path.relpath(path, source_tree_root)
+
+      excluded = False
+      for exclusion in argv:
+        if relpath.startswith(exclusion):
+          # Multiple exclusions can match the same path. Go through all of them
+          # and mark each one as used.
+          exclusion_used[exclusion] = True
+          excluded = True
+      if excluded:
+        continue
+
+      # Deleting gyp files almost always leads to gyp failures.
+      # These files come from Chromium project, and can be replaced if needed.
+      if f.endswith('.gyp') or f.endswith('.gypi'):
+        continue
+
+      # Delete the file - best way to ensure it's not used during build.
+      os.remove(path)
+
+  exit_code = 0
+
+  # Fail if exclusion list contains stale entries - this helps keep it
+  # up to date.
+  for exclusion, used in exclusion_used.iteritems():
+    if not used:
+      print '%s does not exist' % exclusion
+      exit_code = 1
+
+  return exit_code
+
+
+if __name__ == '__main__':
+  sys.exit(DoMain(sys.argv[1:]))