pre-commit-hooks/pre_commit_hooks/no_commit_to_branch.py

69 lines
1.7 KiB
Python

from __future__ import annotations
import argparse
import re
from typing import AbstractSet
from typing import Sequence
from pre_commit_hooks.util import CalledProcessError
from pre_commit_hooks.util import cmd_output
def get_current_branch() -> str | None:
try:
ref_name = cmd_output('git', 'symbolic-ref', 'HEAD')
except CalledProcessError:
return None
chunks = ref_name.strip().split('/')
return '/'.join(chunks[2:])
def is_on_branch(
current_branch: str,
protected: AbstractSet[str],
patterns: AbstractSet[str] = frozenset(),
) -> bool:
return current_branch in protected or any(
re.match(p, current_branch) for p in patterns
)
def main(argv: Sequence[str] | None = None) -> int:
parser = argparse.ArgumentParser()
parser.add_argument(
'-b',
'--branch',
action='append',
help='branch to disallow commits to, may be specified multiple times',
)
parser.add_argument(
'-p',
'--pattern',
action='append',
help=(
'regex pattern for branch name to disallow commits to, '
'may be specified multiple times'
),
)
args = parser.parse_args(argv)
protected = frozenset(args.branch or ('master', 'main'))
patterns = frozenset(args.pattern or ())
current_branch = get_current_branch()
if current_branch is None:
return 0
on_branch = is_on_branch(current_branch, protected, patterns)
if on_branch:
print(
f'You are currently on {current_branch} branch, for which '
f'pre-commit script does not permit this action.',
)
return int(on_branch)
if __name__ == '__main__':
raise SystemExit(main())