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| 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 Removes bundled libraries to make sure they are not used. |
| 8 |
| 9 See README for more details. |
| 10 """ |
| 11 |
| 12 |
| 13 import optparse |
| 14 import os.path |
| 15 import sys |
| 16 |
| 17 |
| 18 def DoMain(argv): |
| 19 my_dirname = os.path.abspath(os.path.dirname(__file__)) |
| 20 source_tree_root = os.path.abspath( |
| 21 os.path.join(my_dirname, '..', '..', '..')) |
| 22 |
| 23 if os.path.join(source_tree_root, 'build', 'linux', 'unbundle') != my_dirname: |
| 24 print ('Sanity check failed: please run this script from ' + |
| 25 'build/linux/unbundle directory.') |
| 26 return 1 |
| 27 |
| 28 parser = optparse.OptionParser() |
| 29 parser.add_option('--do-remove', action='store_true') |
| 30 |
| 31 options, args = parser.parse_args(argv) |
| 32 |
| 33 exclusion_used = {} |
| 34 for exclusion in args: |
| 35 exclusion_used[exclusion] = False |
| 36 |
| 37 for root, dirs, files in os.walk(source_tree_root, topdown=False): |
| 38 # Only look at paths which contain a "third_party" component |
| 39 # (note that e.g. third_party.png doesn't count). |
| 40 root_relpath = os.path.relpath(root, source_tree_root) |
| 41 if 'third_party' not in root_relpath.split(os.sep): |
| 42 continue |
| 43 |
| 44 for f in files: |
| 45 path = os.path.join(root, f) |
| 46 relpath = os.path.relpath(path, source_tree_root) |
| 47 |
| 48 excluded = False |
| 49 for exclusion in args: |
| 50 # Require precise exclusions. Find the right-most third_party |
| 51 # in the relative path, and if there is more than one ignore |
| 52 # the exclusion if it's completely contained within the part |
| 53 # before right-most third_party path component. |
| 54 split = relpath.rsplit(os.sep + 'third_party' + os.sep, 1) |
| 55 if len(split) > 1 and split[0].startswith(exclusion): |
| 56 continue |
| 57 |
| 58 if relpath.startswith(exclusion): |
| 59 # Multiple exclusions can match the same path. Go through all of them |
| 60 # and mark each one as used. |
| 61 exclusion_used[exclusion] = True |
| 62 excluded = True |
| 63 if excluded: |
| 64 continue |
| 65 |
| 66 # Deleting gyp files almost always leads to gyp failures. |
| 67 # These files come from Chromium project, and can be replaced if needed. |
| 68 if f.endswith('.gyp') or f.endswith('.gypi'): |
| 69 continue |
| 70 |
| 71 # Deleting .isolate files leads to gyp failures. They are usually |
| 72 # not used by a distro build anyway. |
| 73 # See http://www.chromium.org/developers/testing/isolated-testing |
| 74 # for more info. |
| 75 if f.endswith('.isolate'): |
| 76 continue |
| 77 |
| 78 if options.do_remove: |
| 79 # Delete the file - best way to ensure it's not used during build. |
| 80 os.remove(path) |
| 81 else: |
| 82 # By default just print paths that would be removed. |
| 83 print path |
| 84 |
| 85 exit_code = 0 |
| 86 |
| 87 # Fail if exclusion list contains stale entries - this helps keep it |
| 88 # up to date. |
| 89 for exclusion, used in exclusion_used.iteritems(): |
| 90 if not used: |
| 91 print '%s does not exist' % exclusion |
| 92 exit_code = 1 |
| 93 |
| 94 if not options.do_remove: |
| 95 print ('To actually remove files printed above, please pass ' + |
| 96 '--do-remove flag.') |
| 97 |
| 98 return exit_code |
| 99 |
| 100 |
| 101 if __name__ == '__main__': |
| 102 sys.exit(DoMain(sys.argv[1:])) |
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