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https://chromium.googlesource.com/chromium/tools/depot_tools.git
synced 2026-01-11 02:31:29 +00:00
03a1a8936e
Without this line, if the git config specifies to ignore submodule change (what happned in the associated bug), this script is useless because the command will never return gitlink change R=sokcevic Bug: 1496925 Change-Id: I6536b95502e708e44d6fd3e4909fd30eac8c7c98 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/4995364 Auto-Submit: Yiwei Zhang <yiwzhang@google.com> Reviewed-by: Josip Sokcevic <sokcevic@chromium.org> Commit-Queue: Josip Sokcevic <sokcevic@chromium.org>
98 lines
2.9 KiB
Python
98 lines
2.9 KiB
Python
#!/usr/bin/env python3
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# Copyright (c) 2023 The Chromium Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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"""A git pre-commit hook to drop staged gitlink changes.
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To bypass this hook, set SKIP_GITLINK_PRECOMMIT=1.
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"""
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import os
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import sys
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ROOT_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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sys.path.insert(0, ROOT_DIR)
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import git_common
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from gclient_eval import SYNC
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SKIP_VAR = 'SKIP_GITLINK_PRECOMMIT'
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TESTING_ANSWER = 'TESTING_ANSWER'
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def main():
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if os.getenv(SKIP_VAR) == '1':
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print(f'{SKIP_VAR} is set. Committing gitlinks, if any.')
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exit(0)
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has_deps_diff = False
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staged_gitlinks = []
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diff = git_common.run('diff-index', '--cached', '--ignore-submodules=dirty',
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'HEAD')
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for line in diff.splitlines():
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path = line.split()[-1]
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if path == 'DEPS':
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has_deps_diff = True
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continue
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if line.startswith(':160000 160000'):
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staged_gitlinks.append(path)
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if not staged_gitlinks or has_deps_diff:
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exit(0)
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# There are staged gitlinks and DEPS wasn't changed. Get git_dependencies
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# migration state in DEPS.
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state = None
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try:
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with open('DEPS', 'r') as f:
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for l in f.readlines():
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if l.startswith('git_dependencies'):
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state = l.split()[-1].strip(' "\'')
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break
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except OSError:
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# Don't abort the commit if DEPS wasn't found.
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exit(0)
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if state != SYNC:
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# DEPS only has to be in sync with gitlinks when state is SYNC.
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exit(0)
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prompt = (
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f'Found no change to DEPS, but found staged gitlink(s) in diff:\n{diff}\n'
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'Press Enter/Return if you intended to include them or "n" to unstage '
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'(exclude from commit) the gitlink(s): ')
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print(prompt)
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if os.getenv(TESTING_ANSWER) is not None:
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answer = os.getenv(TESTING_ANSWER)
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else:
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try:
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sys.stdin = open("/dev/tty", "r")
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except (FileNotFoundError, OSError):
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try:
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sys.stdin = open('CON')
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except:
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print(
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'Unable to acquire input handle, proceeding without modifications'
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)
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exit(0)
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answer = input()
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disable_msg = f'To disable this hook, set {SKIP_VAR}=1'
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if answer.lower() == 'n':
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print(
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f'\nUnstaging {len(staged_gitlinks)} staged gitlink(s) found in diff'
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)
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git_common.run('restore', '--staged', '--', *staged_gitlinks)
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if len(staged_gitlinks) == len(diff.splitlines()):
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print(
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'\nFound no changes after unstaging gitlinks, aborting commit.')
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print(disable_msg)
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exit(1)
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print(disable_msg)
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if __name__ == "__main__":
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main()
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