131 lines
4.2 KiB
Python
Executable File
131 lines
4.2 KiB
Python
Executable File
#!/usr/bin/env python3
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"""Script to do the first step of Abseil roll into chromium.
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"""
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import logging
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import os
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import re
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import subprocess
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import tempfile
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from datetime import datetime
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ABSL_URI = 'https://github.com/abseil/abseil-cpp.git'
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def _PullAbseil(abseil_dir):
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logging.info('Updating abseil...')
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subprocess.check_call(['git', 'clone', ABSL_URI],
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cwd=abseil_dir)
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def _SyncChromium(chromium_dir):
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logging.info('Updating chromium...')
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subprocess.check_call(['git', 'checkout', 'main'], cwd=chromium_dir)
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subprocess.check_call(['git', 'pull', '--rebase'], cwd=chromium_dir)
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subprocess.check_call(['gclient', 'sync'], cwd=chromium_dir)
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def _UpdateChromiumReadme(readme_filename, abseil_dir):
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logging.info('Updating ' + readme_filename)
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stdout = subprocess.check_output(['git', 'log', '-n1', '--pretty=short'],
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cwd=abseil_dir)
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new_revision = re.search('commit\\s(.{40})', str(stdout)).group(1)
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with open(readme_filename, 'r+') as f:
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content = f.read()
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prefix = 'Revision: '
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pos = content.find(prefix)
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assert(pos > 0)
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pos = pos + len(prefix)
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old_revision = content[pos:pos+40]
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f.seek(pos)
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f.write(new_revision)
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logging.info('Abseil old revision is ' + old_revision)
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logging.info('Abseil new revision is ' + new_revision)
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return old_revision[0:10] + '..' + new_revision[0:10]
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def _UpdateAbseilInChromium(abseil_dir, chromium_dir):
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logging.info('Syncing abseil in chromium/src/third_party...')
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exclude = [
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'*BUILD.gn',
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'DIR_METADATA',
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'README.chromium',
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'OWNERS',
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'.gitignore',
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'.git',
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'*.gni',
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'*clang-format',
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'patches/*',
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'patches',
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'absl_hardening_test.cc',
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'roll_abseil.py',
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'generate_def_files.py',
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'*.def',
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]
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params = ['rsync', '-aP', abseil_dir, os.path.join(chromium_dir, 'third_party'), '--delete']
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for e in exclude:
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params.append('--exclude={}'.format(e))
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subprocess.check_call(params, cwd=chromium_dir)
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def _PatchAbseil(abseil_in_chromium_dir):
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logging.info('Patching abseil...')
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for patch in os.listdir(os.path.join(abseil_in_chromium_dir, 'patches')):
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subprocess.check_call(['patch', '--strip', '1', '-i', os.path.join(abseil_in_chromium_dir, 'patches', patch)])
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os.remove(os.path.join(abseil_in_chromium_dir, 'absl', 'base', 'internal', 'thread_annotations.h'))
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os.remove(os.path.join(abseil_in_chromium_dir, 'absl', 'base', 'internal', 'dynamic_annotations.h'))
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def _Commit(chromium_dir, hash_diff):
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logging.info('Commit...')
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desc="""Roll abseil_revision {0}
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Change Log:
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https://chromium.googlesource.com/external/github.com/abseil/abseil-cpp/+log/{0}
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Full diff:
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https://chromium.googlesource.com/external/github.com/abseil/abseil-cpp/+/{0}
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Bug: None""".format(hash_diff)
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subprocess.check_call(['git', 'add', 'third_party/abseil-cpp'], cwd=chromium_dir)
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subprocess.check_call(['git', 'commit', '-m', desc], cwd=chromium_dir)
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logging.info('Upload...')
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subprocess.check_call(['git', 'cl', 'upload', '-m', desc, '--bypass-hooks'], cwd=chromium_dir)
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def _Roll():
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chromium_dir = os.getcwd()
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abseil_in_chromium_dir = os.path.join(chromium_dir, 'third_party', 'abseil-cpp')
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_SyncChromium(chromium_dir)
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branch_name = datetime.today().strftime('rolling-absl-%Y%m%d')
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logging.info('Creating branch ' + branch_name + ' for the roll...')
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subprocess.check_call(['git', 'checkout', '-b', branch_name], cwd=chromium_dir)
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with tempfile.TemporaryDirectory() as abseil_root:
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_PullAbseil(abseil_root)
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abseil_dir = os.path.join(abseil_root, 'abseil-cpp')
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_UpdateAbseilInChromium(abseil_dir, chromium_dir)
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hash_diff = _UpdateChromiumReadme(os.path.join(abseil_in_chromium_dir, 'README.chromium'),
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abseil_dir)
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_PatchAbseil(abseil_in_chromium_dir)
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_Commit(chromium_dir, hash_diff)
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if __name__ == '__main__':
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logging.getLogger().setLevel(logging.INFO)
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if os.getcwd().endswith('src') and os.path.exists('chrome/browser'):
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_Roll()
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logging.info("Next step is manual: Fix BUILD.gn files to match BUILD.bazel changes.")
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logging.info("After that run generate_def_files.py. ")
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else:
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logging.error('Run this script from a chromium/src/ directory.')
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