| #!/usr/bin/env python | |
| # Copyright 2016 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. | |
| """ | |
| Replaces GN files in tree with files from here that | |
| make the build use system libraries. | |
| """ | |
| from __future__ import print_function | |
| import argparse | |
| import os | |
| import shutil | |
| import sys | |
| REPLACEMENTS = { | |
| 'ffmpeg': 'third_party/ffmpeg/BUILD.gn', | |
| 'flac': 'third_party/flac/BUILD.gn', | |
| 'fontconfig': 'third_party/fontconfig/BUILD.gn', | |
| 'freetype': 'build/config/freetype/freetype.gni', | |
| 'harfbuzz-ng': 'third_party/harfbuzz-ng/harfbuzz.gni', | |
| 'icu': 'third_party/icu/BUILD.gn', | |
| 'libdrm': 'third_party/libdrm/BUILD.gn', | |
| 'libevent': 'base/third_party/libevent/BUILD.gn', | |
| 'libjpeg': 'third_party/libjpeg.gni', | |
| 'libpng': 'third_party/libpng/BUILD.gn', | |
| 'libvpx': 'third_party/libvpx/BUILD.gn', | |
| 'libwebp': 'third_party/libwebp/BUILD.gn', | |
| 'libxml': 'third_party/libxml/BUILD.gn', | |
| 'libxslt': 'third_party/libxslt/BUILD.gn', | |
| 'openh264': 'third_party/openh264/BUILD.gn', | |
| 'opus': 'third_party/opus/BUILD.gn', | |
| 're2': 'third_party/re2/BUILD.gn', | |
| 'snappy': 'third_party/snappy/BUILD.gn', | |
| 'zlib': 'third_party/zlib/BUILD.gn', | |
| } | |
| def DoMain(argv): | |
| my_dirname = os.path.dirname(__file__) | |
| source_tree_root = os.path.abspath( | |
| os.path.join(my_dirname, '..', '..', '..')) | |
| parser = argparse.ArgumentParser() | |
| parser.add_argument('--system-libraries', nargs='*', default=[]) | |
| parser.add_argument('--undo', action='store_true') | |
| args = parser.parse_args(argv) | |
| handled_libraries = set() | |
| for lib, path in REPLACEMENTS.items(): | |
| if lib not in args.system_libraries: | |
| continue | |
| handled_libraries.add(lib) | |
| if args.undo: | |
| # Restore original file, and also remove the backup. | |
| # This is meant to restore the source tree to its original state. | |
| os.rename(os.path.join(source_tree_root, path + '.orig'), | |
| os.path.join(source_tree_root, path)) | |
| else: | |
| # Create a backup copy for --undo. | |
| shutil.copyfile(os.path.join(source_tree_root, path), | |
| os.path.join(source_tree_root, path + '.orig')) | |
| # Copy the GN file from directory of this script to target path. | |
| shutil.copyfile(os.path.join(my_dirname, '%s.gn' % lib), | |
| os.path.join(source_tree_root, path)) | |
| unhandled_libraries = set(args.system_libraries) - handled_libraries | |
| if unhandled_libraries: | |
| print('Unrecognized system libraries requested: %s' % ', '.join( | |
| sorted(unhandled_libraries)), file=sys.stderr) | |
| return 1 | |
| return 0 | |
| if __name__ == '__main__': | |
| sys.exit(DoMain(sys.argv[1:])) |