make_new_branch

#!/usr/bin/env python
"""
Creates a new branch and pushes it upstream for tracking.

Usage:

    ./make_new_branch <issue#>

"""
from __future__ import print_function
import os
import sys
import re
from commands import getoutput

os.system('git checkout master')
os.system('git pull')
try:
    ticket = re.findall(r'([0-9]+(?:\-[a-zA-Z0-9\-]+)?)', sys.argv[1])[0]
    print('ticket:', ticket)
except IndexError:
    print('Usage:\n\n    ./make_new_branch xxxx\n')
    sys.exit(1)
assert getoutput('git rev-parse --abbrev-ref HEAD') == 'master', 'A branch should only be created from master.'
os.system('git checkout -b %s' % ticket)
os.system('git push -u origin %s' % ticket)