Windows git hook commit message

commit-message.py

#!/usr/bin/env python
import sys, re
from subprocess import check_output

branch = check_output(['git', 'symbolic-ref', '--short', 'HEAD']).strip()
commit_msg_filepath = sys.argv[1]

with open(commit_msg_filepath, 'r') as f:
	content = f.read()

with open(commit_msg_filepath, 'w') as f:
	f.write(branch + " - " + content)

commit-msg

#!/bin/sh
python .git/hooks/commit-message.py $1