replace_gn_files.py (5516B)
1 #!/usr/bin/env python3 2 # Copyright 2016 The Chromium Authors 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 Replaces GN files in tree with files from here that 8 make the build use system libraries. 9 """ 10 11 import argparse 12 import os 13 import shutil 14 import sys 15 16 17 REPLACEMENTS = { 18 # Use system libabsl_2xxx. These 20 shims MUST be used together. 19 'absl_algorithm': 'third_party/abseil-cpp/absl/algorithm/BUILD.gn', 20 'absl_base': 'third_party/abseil-cpp/absl/base/BUILD.gn', 21 'absl_cleanup': 'third_party/abseil-cpp/absl/cleanup/BUILD.gn', 22 'absl_container': 'third_party/abseil-cpp/absl/container/BUILD.gn', 23 'absl_crc': 'third_party/abseil-cpp/absl/crc/BUILD.gn', 24 'absl_debugging': 'third_party/abseil-cpp/absl/debugging/BUILD.gn', 25 'absl_flags': 'third_party/abseil-cpp/absl/flags/BUILD.gn', 26 'absl_functional': 'third_party/abseil-cpp/absl/functional/BUILD.gn', 27 'absl_hash': 'third_party/abseil-cpp/absl/hash/BUILD.gn', 28 'absl_log': 'third_party/abseil-cpp/absl/log/BUILD.gn', 29 'absl_log_internal': 'third_party/abseil-cpp/absl/log/internal/BUILD.gn', 30 'absl_memory': 'third_party/abseil-cpp/absl/memory/BUILD.gn', 31 'absl_meta': 'third_party/abseil-cpp/absl/meta/BUILD.gn', 32 'absl_numeric': 'third_party/abseil-cpp/absl/numeric/BUILD.gn', 33 'absl_random': 'third_party/abseil-cpp/absl/random/BUILD.gn', 34 'absl_status': 'third_party/abseil-cpp/absl/status/BUILD.gn', 35 'absl_strings': 'third_party/abseil-cpp/absl/strings/BUILD.gn', 36 'absl_synchronization': 37 'third_party/abseil-cpp/absl/synchronization/BUILD.gn', 38 'absl_time': 'third_party/abseil-cpp/absl/time/BUILD.gn', 39 'absl_types': 'third_party/abseil-cpp/absl/types/BUILD.gn', 40 'absl_utility': 'third_party/abseil-cpp/absl/utility/BUILD.gn', 41 # 42 'brotli': 'third_party/brotli/BUILD.gn', 43 'crc32c': 'third_party/crc32c/BUILD.gn', 44 'dav1d': 'third_party/dav1d/BUILD.gn', 45 'double-conversion': 'base/third_party/double_conversion/BUILD.gn', 46 'ffmpeg': 'third_party/ffmpeg/BUILD.gn', 47 'flac': 'third_party/flac/BUILD.gn', 48 'flatbuffers': 'third_party/flatbuffers/BUILD.gn', 49 'fontconfig': 'third_party/fontconfig/BUILD.gn', 50 'freetype': 'build/config/freetype/freetype.gni', 51 'harfbuzz-ng': 'third_party/harfbuzz-ng/harfbuzz.gni', 52 'highway': 'third_party/highway/BUILD.gn', 53 'icu': 'third_party/icu/BUILD.gn', 54 'jsoncpp': 'third_party/jsoncpp/BUILD.gn', 55 'libaom': 'third_party/libaom/BUILD.gn', 56 'libdrm': 'third_party/libdrm/BUILD.gn', 57 'libjpeg': 'third_party/libjpeg.gni', 58 'libpng': 'third_party/libpng/BUILD.gn', 59 'libsecret': 'third_party/libsecret/BUILD.gn', 60 'libusb': 'third_party/libusb/BUILD.gn', 61 'libvpx': 'third_party/libvpx/BUILD.gn', 62 'libwebp': 'third_party/libwebp/BUILD.gn', 63 'libxml': 'third_party/libxml/BUILD.gn', 64 'libXNVCtrl': 'third_party/angle/src/third_party/libXNVCtrl/BUILD.gn', 65 'libxslt': 'third_party/libxslt/BUILD.gn', 66 'libyuv': 'third_party/libyuv/BUILD.gn', 67 'openh264': 'third_party/openh264/BUILD.gn', 68 'opus': 'third_party/opus/BUILD.gn', 69 're2': 'third_party/re2/BUILD.gn', 70 'simdutf': 'third_party/simdutf/BUILD.gn', 71 'snappy': 'third_party/snappy/BUILD.gn', 72 # Use system libSPIRV-Tools in Swiftshader. 73 # These two shims MUST be used together. 74 'swiftshader-SPIRV-Headers': 75 'third_party/swiftshader/third_party/SPIRV-Headers/BUILD.gn', 76 'swiftshader-SPIRV-Tools': 77 'third_party/swiftshader/third_party/SPIRV-Tools/BUILD.gn', 78 # Use system libSPIRV-Tools inside ANGLE. 79 # These two shims MUST be used together 80 # and can only be used if WebGPU is not compiled (use_dawn=false) 81 'vulkan-SPIRV-Headers': 'third_party/spirv-headers/src/BUILD.gn', 82 'vulkan-SPIRV-Tools': 'third_party/spirv-tools/src/BUILD.gn', 83 # 84 'vulkan_memory_allocator': 'third_party/vulkan_memory_allocator/BUILD.gn', 85 'woff2': 'third_party/woff2/BUILD.gn', 86 'zlib': 'third_party/zlib/BUILD.gn', 87 'zstd': 'third_party/zstd/BUILD.gn', 88 } 89 90 91 def DoMain(argv): 92 my_dirname = os.path.dirname(__file__) 93 source_tree_root = os.path.abspath( 94 os.path.join(my_dirname, '..', '..', '..')) 95 96 parser = argparse.ArgumentParser() 97 parser.add_argument('--system-libraries', nargs='*', default=[]) 98 parser.add_argument('--undo', action='store_true') 99 100 args = parser.parse_args(argv) 101 102 handled_libraries = set() 103 for lib, path in REPLACEMENTS.items(): 104 if lib not in args.system_libraries: 105 continue 106 handled_libraries.add(lib) 107 108 if args.undo: 109 # Restore original file, and also remove the backup. 110 # This is meant to restore the source tree to its original state. 111 os.rename(os.path.join(source_tree_root, path + '.orig'), 112 os.path.join(source_tree_root, path)) 113 else: 114 # Create a backup copy for --undo. 115 shutil.copyfile(os.path.join(source_tree_root, path), 116 os.path.join(source_tree_root, path + '.orig')) 117 118 # Copy the GN file from directory of this script to target path. 119 shutil.copyfile(os.path.join(my_dirname, '%s.gn' % lib), 120 os.path.join(source_tree_root, path)) 121 122 unhandled_libraries = set(args.system_libraries) - handled_libraries 123 if unhandled_libraries: 124 print('Unrecognized system libraries requested: %s' % ', '.join( 125 sorted(unhandled_libraries)), file=sys.stderr) 126 return 1 127 128 return 0 129 130 131 if __name__ == '__main__': 132 sys.exit(DoMain(sys.argv[1:]))