Rewrite iOS FAT libraries build script in Python
BUG=webrtc:7049 Review-Url: https://codereview.webrtc.org/2662513004 Cr-Commit-Position: refs/heads/master@{#16453}
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tools-webrtc/ios/build_ios_libs.py
Executable file
221
tools-webrtc/ios/build_ios_libs.py
Executable file
@ -0,0 +1,221 @@
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#!/usr/bin/env python
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# Copyright (c) 2017 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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# tree. An additional intellectual property rights grant can be found
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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"""WebRTC iOS FAT libraries build script.
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Each architecture is compiled separately before being merged together.
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By default, the library is created in out_ios_libs/. (Change with -o.)
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The headers will be copied to out_ios_libs/include.
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"""
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import argparse
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import distutils.dir_util
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import logging
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import os
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import shutil
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import subprocess
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import sys
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os.environ['PATH'] = '/usr/libexec' + os.pathsep + os.environ['PATH']
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SCRIPT_DIR = os.path.dirname(os.path.abspath(__file__))
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WEBRTC_BASE_DIR = os.path.abspath(os.path.join(SCRIPT_DIR, '..', '..'))
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SDK_OUTPUT_DIR = os.path.join(WEBRTC_BASE_DIR, 'out_ios_libs')
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SDK_LIB_NAME = 'librtc_sdk_objc.a'
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SDK_FRAMEWORK_NAME = 'WebRTC.framework'
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ENABLED_ARCHITECTURES = ['arm', 'arm64', 'x64']
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IOS_DEPLOYMENT_TARGET = '8.0'
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LIBVPX_BUILD_VP9 = False
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CUSTOM_GN_OPTS = [] # example: ['some_option=foo bar', 'other_option=true']
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def _ParseArgs():
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parser = argparse.ArgumentParser(description=__doc__)
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parser.add_argument('-b', '--build_type', default='framework',
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choices=['framework', 'static_only'],
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help='The build type. Can be "framework" or "static_only". '
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'Defaults to "framework".')
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parser.add_argument('--build_config', default='release',
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choices=['debug', 'release'],
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help='The build config. Can be "debug" or "release". '
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'Defaults to "release".')
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parser.add_argument('-c', '--clean', action='store_true', default=False,
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help='Removes the previously generated build output, if any.')
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parser.add_argument('-o', '--output-dir', default=SDK_OUTPUT_DIR,
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help='Specifies a directory to output the build artifacts to. '
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'If specified together with -c, deletes the dir.')
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parser.add_argument('-r', '--revision', type=int, default=0,
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help='Specifies a revision number to embed if building the framework.')
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parser.add_argument('-e', '--bitcode', action='store_true', default=False,
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help='Compile with bitcode.')
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parser.add_argument('--verbose', action='store_true', default=False,
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help='Debug logging.')
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return parser.parse_args()
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def _RunCommand(cmd):
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logging.debug('Running: %r', cmd)
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subprocess.check_call(cmd)
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def _CleanArtifacts(output_dir):
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if os.path.isdir(output_dir):
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logging.info('Deleting %s', output_dir)
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shutil.rmtree(output_dir)
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def BuildWebRTC(output_dir, target_arch, flavor, build_type,
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ios_deployment_target, libvpx_build_vp9, use_bitcode,
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custom_gn_options=()):
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output_dir = os.path.join(output_dir, target_arch + '_libs')
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gn_args = ['target_os="ios"', 'ios_enable_code_signing=false',
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'use_xcode_clang=true', 'is_component_build=false']
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# Add flavor option.
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if flavor == 'debug':
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gn_args.append('is_debug=true')
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elif flavor == 'release':
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gn_args.append('is_debug=false')
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else:
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raise ValueError('Unexpected flavor type: %s' % flavor)
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gn_args.append('target_cpu="%s"' % target_arch)
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gn_args.append('ios_deployment_target="%s"' % ios_deployment_target)
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gn_args.append('rtc_libvpx_build_vp9=' +
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('true' if libvpx_build_vp9 else 'false'))
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gn_args.append('enable_ios_bitcode=' +
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('true' if use_bitcode else 'false'))
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gn_args.extend(custom_gn_options)
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# Generate static or dynamic.
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if build_type == 'static_only':
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gn_target_name = 'rtc_sdk_objc'
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elif build_type == 'framework':
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gn_target_name = 'rtc_sdk_framework_objc'
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gn_args.append('enable_dsyms=true')
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gn_args.append('enable_stripping=true')
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else:
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raise ValueError('Build type "%s" is not supported.' % build_type)
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logging.info('Building WebRTC with args: %s', ' '.join(gn_args))
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cmd = ['gn', 'gen', output_dir,
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'--args=' + ' '.join(gn_args)]
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_RunCommand(cmd)
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logging.info('Building target: %s', gn_target_name)
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cmd = ['ninja', '-C', output_dir, gn_target_name]
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_RunCommand(cmd)
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# Strip debug symbols to reduce size.
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if build_type == 'static_only':
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gn_target_path = os.path.join(output_dir, 'obj', 'webrtc', 'sdk',
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'lib%s.a' % gn_target_name)
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cmd = ['strip', '-S', gn_target_path, '-o',
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os.path.join(output_dir, 'lib%s.a' % gn_target_name)]
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_RunCommand(cmd)
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def main():
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args = _ParseArgs()
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logging.basicConfig(level=logging.DEBUG if args.verbose else logging.INFO)
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if args.clean:
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_CleanArtifacts(args.output_dir)
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return 0
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# Build all architectures.
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for arch in ENABLED_ARCHITECTURES:
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BuildWebRTC(args.output_dir, arch, args.build_config, args.build_type,
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IOS_DEPLOYMENT_TARGET, LIBVPX_BUILD_VP9, args.bitcode,
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CUSTOM_GN_OPTS)
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# Ignoring x86 except for static libraries for now because of a GN build issue
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# where the generated dynamic framework has the wrong architectures.
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# Create FAT archive.
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if args.build_type == 'static_only':
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BuildWebRTC(args.output_dir, 'x86', args.build_config, args.build_type,
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IOS_DEPLOYMENT_TARGET, LIBVPX_BUILD_VP9, args.bitcode,
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CUSTOM_GN_OPTS)
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arm_lib_path = os.path.join(args.output_dir, 'arm_libs', SDK_LIB_NAME)
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arm64_lib_path = os.path.join(args.output_dir, 'arm64_libs', SDK_LIB_NAME)
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x64_lib_path = os.path.join(args.output_dir, 'x64_libs', SDK_LIB_NAME)
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x86_lib_path = os.path.join(args.output_dir, 'x86_libs', SDK_LIB_NAME)
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# Combine the slices.
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cmd = ['lipo', arm_lib_path, arm64_lib_path, x64_lib_path, x86_lib_path,
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'-create', '-output', os.path.join(args.output_dir, SDK_LIB_NAME)]
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_RunCommand(cmd)
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elif args.build_type == 'framework':
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arm_lib_path = os.path.join(args.output_dir, 'arm_libs')
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arm64_lib_path = os.path.join(args.output_dir, 'arm64_libs')
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x64_lib_path = os.path.join(args.output_dir, 'x64_libs')
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# Combine the slices.
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dylib_path = os.path.join(SDK_FRAMEWORK_NAME, 'WebRTC')
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# Use distutils instead of shutil to support merging folders.
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distutils.dir_util.copy_tree(
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os.path.join(arm64_lib_path, SDK_FRAMEWORK_NAME),
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os.path.join(args.output_dir, SDK_FRAMEWORK_NAME))
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try:
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os.remove(os.path.join(args.output_dir, dylib_path))
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except OSError:
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pass
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logging.info('Merging framework slices.')
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cmd = ['lipo', os.path.join(arm_lib_path, dylib_path),
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os.path.join(arm64_lib_path, dylib_path),
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os.path.join(x64_lib_path, dylib_path),
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'-create', '-output', os.path.join(args.output_dir, dylib_path)]
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_RunCommand(cmd)
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# Merge the dSYM slices.
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dsym_path = os.path.join('WebRTC.dSYM', 'Contents', 'Resources', 'DWARF',
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'WebRTC')
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distutils.dir_util.copy_tree(os.path.join(arm64_lib_path, 'WebRTC.dSYM'),
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os.path.join(args.output_dir, 'WebRTC.dSYM'))
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try:
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os.remove(os.path.join(args.output_dir, dsym_path))
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except OSError:
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pass
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logging.info('Merging dSYM slices.')
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cmd = ['lipo', os.path.join(arm_lib_path, dsym_path),
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os.path.join(arm64_lib_path, dsym_path),
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os.path.join(x64_lib_path, dsym_path),
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'-create', '-output', os.path.join(args.output_dir, dsym_path)]
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_RunCommand(cmd)
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# Modify the version number.
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# Format should be <Branch cut MXX>.<Hotfix #>.<Rev #>.
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# e.g. 55.0.14986 means branch cut 55, no hotfixes, and revision 14986.
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infoplist_path = os.path.join(args.output_dir, SDK_FRAMEWORK_NAME,
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'Info.plist')
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cmd = ['PlistBuddy', '-c',
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'Print :CFBundleShortVersionString', infoplist_path]
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major_minor = subprocess.check_output(cmd).strip()
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version_number = '%s.%s' % (major_minor, args.revision)
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logging.info('Substituting revision number: %s', version_number)
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cmd = ['PlistBuddy', '-c',
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'Set :CFBundleVersion ' + version_number, infoplist_path]
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_RunCommand(cmd)
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_RunCommand(['plutil', '-convert', 'binary1', infoplist_path])
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logging.info('Done.')
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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@ -1,6 +1,6 @@
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#!/bin/bash
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# Copyright 2015 The WebRTC project authors. All Rights Reserved.
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# Copyright 2017 The WebRTC project authors. All Rights Reserved.
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#
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# Use of this source code is governed by a BSD-style license
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# that can be found in the LICENSE file in the root of the source
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@ -8,202 +8,8 @@
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# in the file PATENTS. All contributing project authors may
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# be found in the AUTHORS file in the root of the source tree.
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# Generates static FAT libraries for ios in out_ios_libs.
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# This script has been rewritten in Python. Temporary "redirect":
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# Exit on errors.
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set -e
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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# Environment
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export PATH=/usr/libexec:$PATH
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SCRIPT_DIR=$(cd $(dirname $0) && pwd)
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WEBRTC_BASE_DIR=${SCRIPT_DIR}/../..
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function clean_artifacts {
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local output_dir=$1
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if [[ -d ${output_dir} ]]; then
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echo "Deleting ${output_dir}"
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rm -r ${output_dir}
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fi
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}
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function build_webrtc {
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local target_arch=$1
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local flavor=$2
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local build_type=$3
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local ios_deployment_target=$4
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local libvpx_build_vp9=$5
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local use_bitcode=$6
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local custom_gn_options=$7
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OUTPUT_DIR=${SDK_OUTPUT_DIR}/${target_arch}_libs
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GN_ARGS="target_os=\"ios\" ios_enable_code_signing=false \
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use_xcode_clang=true is_component_build=false"
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# Add flavor option.
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if [[ ${flavor} = "debug" ]]; then
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GN_ARGS="${GN_ARGS} is_debug=true"
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elif [[ ${flavor} = "release" ]]; then
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GN_ARGS="${GN_ARGS} is_debug=false"
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else
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echo "Unexpected flavor type: ${flavor}"
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exit 1
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fi
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# Add the specified architecture.
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GN_ARGS="${GN_ARGS} target_cpu=\"${target_arch}\""
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# Add deployment target.
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GN_ARGS="${GN_ARGS} ios_deployment_target=\"${ios_deployment_target}\""
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# Add vp9 option.
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GN_ARGS="${GN_ARGS} rtc_libvpx_build_vp9=${libvpx_build_vp9}"
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# Add bitcode option.
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GN_ARGS="${GN_ARGS} enable_ios_bitcode=${use_bitcode}"
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# Add custom options.
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if [[ -n "${custom_gn_options}" ]]; then
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GN_ARGS="${GN_ARGS} ${custom_gn_options}"
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fi
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# Generate static or dynamic.
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if [[ ${build_type} = "static_only" ]]; then
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GN_TARGET_NAME="rtc_sdk_objc"
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elif [[ ${build_type} == "framework" ]]; then
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GN_TARGET_NAME="rtc_sdk_framework_objc"
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GN_ARGS="${GN_ARGS} enable_dsyms=true enable_stripping=true"
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else
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echo "Build type \"${build_type}\" is not supported."
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exit 1
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fi
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echo "Building WebRTC with args: ${GN_ARGS}"
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gn gen ${OUTPUT_DIR} --args="${GN_ARGS}"
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echo "Building target: ${GN_TARGET_NAME}"
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ninja -C ${OUTPUT_DIR} ${GN_TARGET_NAME}
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# Strip debug symbols to reduce size.
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if [[ ${build_type} = "static_only" ]]; then
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strip -S ${OUTPUT_DIR}/obj/webrtc/sdk/lib${GN_TARGET_NAME}.a -o \
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${OUTPUT_DIR}/lib${GN_TARGET_NAME}.a
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fi
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}
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function usage {
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echo "WebRTC iOS FAT libraries build script."
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echo "Each architecture is compiled separately before being merged together."
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echo "By default, the library is created in out_ios_libs/. (Change with -o.)"
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echo "The headers will be copied to out_ios_libs/include."
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echo "Usage: $0 [-h] [-b build_type] [-c] [-o output_dir] [-r rev_num] [-e]"
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echo " -h Print this help."
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echo " -b The build type. Can be \"framework\" or \"static_only\"."
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echo " Defaults to \"framework\"."
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echo " -c Removes the previously generated build output, if any."
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echo " -o Specifies a directory to output the build artifacts to."
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echo " If specified together with -c, deletes the dir."
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echo " -r Specifies a revision number to embed if building the framework."
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echo " -e Compile with bitcode."
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exit 0
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}
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SDK_OUTPUT_DIR=${WEBRTC_BASE_DIR}/out_ios_libs
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SDK_LIB_NAME="librtc_sdk_objc.a"
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SDK_FRAMEWORK_NAME="WebRTC.framework"
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BUILD_FLAVOR="release"
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BUILD_TYPE="framework"
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ENABLED_ARCHITECTURES=("arm" "arm64" "x64")
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IOS_DEPLOYMENT_TARGET="8.0"
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LIBVPX_BUILD_VP9="false"
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USE_BITCODE="false"
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CUSTOM_GN_OPTS=""
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WEBRTC_REVISION="0"
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# Parse arguments.
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while getopts "hb:co:r:e" opt; do
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case "${opt}" in
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h) usage;;
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b) BUILD_TYPE="${OPTARG}";;
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c) PERFORM_CLEAN=1;;
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e) USE_BITCODE="true";;
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o) SDK_OUTPUT_DIR="${OPTARG}";;
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r) WEBRTC_REVISION="${OPTARG}";;
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*)
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usage
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exit 1
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;;
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esac
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done
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if [[ ${PERFORM_CLEAN} -ne 0 ]]; then
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clean_artifacts ${SDK_OUTPUT_DIR}
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exit 0
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fi
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# Build all architectures.
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for arch in ${ENABLED_ARCHITECTURES[*]}; do
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build_webrtc $arch ${BUILD_FLAVOR} ${BUILD_TYPE} \
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${IOS_DEPLOYMENT_TARGET} ${LIBVPX_BUILD_VP9} ${USE_BITCODE} \
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${CUSTOM_GN_OPTS}
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done
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# Ignoring x86 except for static libraries for now because of a GN build issue
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# where the generated dynamic framework has the wrong architectures.
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# Create FAT archive.
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if [[ ${BUILD_TYPE} = "static_only" ]]; then
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build_webrtc "x86" ${BUILD_FLAVOR} ${BUILD_TYPE} \
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${IOS_DEPLOYMENT_TARGET} ${LIBVPX_BUILD_VP9} ${USE_BITCODE} \
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${CUSTOM_GN_OPTS}
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ARM_LIB_PATH=${SDK_OUTPUT_DIR}/arm_libs/${SDK_LIB_NAME}
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ARM64_LIB_PATH=${SDK_OUTPUT_DIR}/arm64_libs/${SDK_LIB_NAME}
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X64_LIB_PATH=${SDK_OUTPUT_DIR}/x64_libs/${SDK_LIB_NAME}
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X86_LIB_PATH=${SDK_OUTPUT_DIR}/x86_libs/${SDK_LIB_NAME}
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# Combine the slices.
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lipo ${ARM_LIB_PATH} ${ARM64_LIB_PATH} ${X64_LIB_PATH} ${X86_LIB_PATH} \
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-create -output ${SDK_OUTPUT_DIR}/${SDK_LIB_NAME}
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elif [[ ${BUILD_TYPE} = "framework" ]]; then
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ARM_LIB_PATH=${SDK_OUTPUT_DIR}/arm_libs
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ARM64_LIB_PATH=${SDK_OUTPUT_DIR}/arm64_libs
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X64_LIB_PATH=${SDK_OUTPUT_DIR}/x64_libs
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X86_LIB_PATH=${SDK_OUTPUT_DIR}/x86_libs
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# Combine the slices.
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DYLIB_PATH="WebRTC.framework/WebRTC"
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cp -R ${ARM64_LIB_PATH}/WebRTC.framework ${SDK_OUTPUT_DIR}
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rm ${SDK_OUTPUT_DIR}/${DYLIB_PATH}
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echo "Merging framework slices."
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lipo ${ARM_LIB_PATH}/${DYLIB_PATH} \
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${ARM64_LIB_PATH}/${DYLIB_PATH} \
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${X64_LIB_PATH}/${DYLIB_PATH} \
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-create -output ${SDK_OUTPUT_DIR}/${DYLIB_PATH}
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# Merge the dSYM slices.
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DSYM_PATH="WebRTC.dSYM/Contents/Resources/DWARF/WebRTC"
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cp -R ${ARM64_LIB_PATH}/WebRTC.dSYM ${SDK_OUTPUT_DIR}
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rm ${SDK_OUTPUT_DIR}/${DSYM_PATH}
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echo "Merging dSYM slices."
|
||||
lipo ${ARM_LIB_PATH}/${DSYM_PATH} \
|
||||
${ARM64_LIB_PATH}/${DSYM_PATH} \
|
||||
${X64_LIB_PATH}/${DSYM_PATH} \
|
||||
-create -output ${SDK_OUTPUT_DIR}/${DSYM_PATH}
|
||||
|
||||
# Modify the version number.
|
||||
# Format should be <Branch cut MXX>.<Hotfix #>.<Rev #>.
|
||||
# e.g. 55.0.14986 means branch cut 55, no hotfixes, and revision number 14986.
|
||||
INFOPLIST_PATH=${SDK_OUTPUT_DIR}/WebRTC.framework/Info.plist
|
||||
MAJOR_MINOR=$(PlistBuddy -c "Print :CFBundleShortVersionString" \
|
||||
${INFOPLIST_PATH})
|
||||
VERSION_NUMBER="${MAJOR_MINOR}.${WEBRTC_REVISION}"
|
||||
echo "Substituting revision number: ${VERSION_NUMBER}"
|
||||
PlistBuddy -c "Set :CFBundleVersion ${VERSION_NUMBER}" ${INFOPLIST_PATH}
|
||||
plutil -convert binary1 ${INFOPLIST_PATH}
|
||||
else
|
||||
echo "BUILD_TYPE ${BUILD_TYPE} not supported."
|
||||
exit 1
|
||||
fi
|
||||
|
||||
echo "Done."
|
||||
exec "$SCRIPT_DIR/build_ios_libs.py" "$@"
|
||||
|
||||
Loading…
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Reference in New Issue
Block a user