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#!/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.
See README for more details.
"""
import optparse
import os.path
import sys
def DoMain(argv):
my_dirname = os.path.abspath(os.path.dirname(__file__))
source_tree_root = os.path.abspath(
os.path.join(my_dirname, '..', '..', '..'))
if os.path.join(source_tree_root, 'build', 'linux', 'unbundle') != my_dirname:
print ('Sanity check failed: please run this script from ' +
'build/linux/unbundle directory.')
return 1
parser = optparse.OptionParser()
parser.add_option('--do-remove', action='store_true')
options, args = parser.parse_args(argv)
exclusion_used = {}
for exclusion in args:
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 args:
# Require precise exclusions. Find the right-most third_party
# in the relative path, and if there is more than one ignore
# the exclusion if it's completely contained within the part
# before right-most third_party path component.
split = relpath.rsplit(os.sep + 'third_party' + os.sep, 1)
if len(split) > 1 and split[0].startswith(exclusion):
continue
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
# Same about GN files.
if f.endswith('.gn') or f.endswith('.gni'):
continue
# Deleting .isolate files leads to gyp failures. They are usually
# not used by a distro build anyway.
# See http://www.chromium.org/developers/testing/isolated-testing
# for more info.
if f.endswith('.isolate'):
continue
if options.do_remove:
# Delete the file - best way to ensure it's not used during build.
os.remove(path)
else:
# By default just print paths that would be removed.
print 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
if not options.do_remove:
print ('To actually remove files printed above, please pass ' +
'--do-remove flag.')
return exit_code
if __name__ == '__main__':
sys.exit(DoMain(sys.argv[1:]))
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