build: move libcc patches to electron repo (#14104)
In the GN build, libchromiumcontent is no longer a distinct library, but merely a container for a set of scripts and patches. Maintaining those patches in a separate repository is tedious and error-prone, so merge them into the main repo. Once this is merged and GN is the default way to build Electron, the libchromiumcontent repository can be archived.
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101
script/get-patch
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101
script/get-patch
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#!/usr/bin/env python
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"""Retrieves commit contents in a patch format.
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Check README.md for usage examples or run it with `-h` argument to get an interface reference.
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"""
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import argparse
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import os
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import sys
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from lib.git import get_patch as git_get_patch
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def parse_args():
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parser = argparse.ArgumentParser(
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description='Get a commit contents in a patch format.')
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parser.add_argument('-c', '--commit', nargs='+', required=True,
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help='Commit hash(es).')
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parser.add_argument('-f', '--filename', nargs='*', required=False,
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help='Filename(s) for a patch file(s). Defaults to something like {0}.'
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.format(get_default_patch_file_name(
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'4b825dc642cb6eb9a060e54bf8d69288fbee4904')))
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parser.add_argument('-o', '--output-dir', required=False,
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help='Folder to save the patch in. Defaults to a current folder.')
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parser.add_argument('-r', '--repo', required=True,
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help='Path to a repository root folder.')
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args = parser.parse_args()
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# Additional rules
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if args.filename is not None and (len(args.commit) != len(args.filename)):
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parser.error("Number of filenames ({0}) must be equal to number of commits ({1})."
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.format(len(args.filename), len(args.commit)))
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return args
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def get_default_patch_file_name(commit_hash):
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template = 'backport_{commit_hash}.patch'
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number_of_hash_characters_to_preserve = 8
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commit_hash_string = commit_hash[:number_of_hash_characters_to_preserve+1]
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patch_file_name = template.format(
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commit_hash=commit_hash_string)
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return patch_file_name
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def get_output_path(output_dir, output_filename, commit_hash):
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if (output_dir is None) and (output_filename is None):
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return None
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# Use current dir as a default.
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if output_dir is None:
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output_dir = '.'
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# Use the default filename if it's not provided.
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if output_filename is None:
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output_filename = get_default_patch_file_name(commit_hash)
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output_path = os.path.join(output_dir, output_filename)
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return output_path
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def save_to_file(data, file_path):
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with open(file_path, 'w') as f:
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f.write(data)
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def process_patch(repo, commit_hash, output_path=None):
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patch_contents = git_get_patch(repo, commit_hash)
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if output_path is None:
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sys.stdout.write(patch_contents)
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else:
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save_to_file(data=patch_contents, file_path=output_path)
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def main():
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args = parse_args()
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commits = args.commit
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filenames = args.filename
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# (alexeykuzmin): Ugly hack alert.
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if filenames is None:
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filenames = [None] * len(commits)
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for (commit, filename) in zip(commits, filenames):
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output_path = get_output_path(args.output_dir, filename,
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commit_hash=commit)
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process_patch(args.repo, commit, output_path)
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return 0
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if __name__ == '__main__':
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sys.exit(main())
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