rhazdon/django-sonic-screwdriver

import os

from subprocess import call

from django_sonic_screwdriver.settings import api_settings
from django_sonic_screwdriver.utils import shell


def git_available(func):
    """
    Check, if a git repository exists in the given folder.
    """

    def inner(*args):

        os.chdir(api_settings.GIT_DIR)

        if call(["git", "rev-parse"]) == 0:
            return func(*args)

        shell.fail("There is no git repository!")
        return exit(1)

    return inner