Files
pre-commit-hooks/pre_commit_hooks/check_merge_conflict.py
2015-03-20 16:21:02 -07:00

43 lines
1.0 KiB
Python

from __future__ import print_function
import argparse
import os.path
import sys
CONFLICT_PATTERNS = [
'<<<<<<< ',
'=======',
'>>>>>>> '
]
WARNING_MSG = 'Merge conflict string "{0}" found in {1}:{2}'
def is_in_merge_conflict():
return (
os.path.exists(os.path.join('.git', 'MERGE_MSG')) and
os.path.exists(os.path.join('.git', 'MERGE_HEAD'))
)
def detect_merge_conflict(argv=None):
parser = argparse.ArgumentParser()
parser.add_argument('filenames', nargs='*')
args = parser.parse_args(argv)
if not is_in_merge_conflict():
return 0
retcode = 0
for filename in args.filenames:
with open(filename) as inputfile:
for i, line in enumerate(inputfile):
for pattern in CONFLICT_PATTERNS:
if line.startswith(pattern):
print(WARNING_MSG.format(pattern, filename, i + 1))
retcode = 1
return retcode
if __name__ == '__main__':
sys.exit(detect_merge_conflict())