pre-commit-hooks/pre_commit_hooks/check_python_modules.py
2019-02-16 14:15:07 -08:00

50 lines
1.2 KiB
Python

from __future__ import absolute_import
from __future__ import print_function
import os.path
from argparse import ArgumentParser
from typing import Optional
from typing import Sequence
from typing import Set
OK = 0
ERR = 1
class ModuleInitChecker:
def __init__(self):
# type: () -> None
self.seen_dirnames = set() # type: Set[str]
def check(self, filename):
# type: (str) -> int
dirname = os.path.dirname(filename)
if dirname in self.seen_dirnames:
return OK
init_file = os.path.join(dirname, '__init__.py')
if dirname and not os.path.exists(init_file):
self.seen_dirnames.add(dirname)
with open(init_file, 'w'):
print(f'Created {init_file}')
return ERR
return OK
def main(argv=None): # type: (Optional[Sequence[str]]) -> int
parser = ArgumentParser()
parser.add_argument('filenames', nargs='*')
args = parser.parse_args(argv)
status = OK
checker = ModuleInitChecker()
for filename in args.filenames:
status |= checker.check(filename)
return status
if __name__ == '__main__':
exit(main())