Check commit msg before commit

commit-msg

#!/usr/bin/env python

# Install:
# cp ./.git/hooks/commit-msg ./.git/hooks/commit-msg.old 2>/dev/null; curl https://gist.githubusercontent.com/Rpsl/4dabaa7120f8a5e08b918a6171aef832/raw > ./.git/hooks/commit-msg && chmod +x ./.git/hooks/commit-msg

import sys
import os
import re

from subprocess import check_output

# Collect the parameters
commit_msg_filepath = sys.argv[1]


def isEnglish(s):
    try:
        s.decode('ascii')
    except UnicodeDecodeError:
        return False
    else:
        return True


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

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

if not isEnglish(commit_msg):
    print "Not Latin symbols in commit message"
    sys.exit(1)

try:
    task = re.findall('(([A-Z]+)-([0-9]+)-)(.*)', branch)[0][0]

    if not commit_msg.startswith(task):
        print 'Commit message must be start from task name, like AVPM-0000-my-message'
        sys.exit(1)
except IndexError:
    pass