A script for updating or cloning all repositories in a GitHub organization in the current directory

update-all.py

#!/usr/bin/env python

from __future__ import print_function, unicode_literals

import argparse
import json
from os.path import exists, expanduser, join
from os import getcwd
import requests
from subprocess import check_call, call

parser = argparse.ArgumentParser(description='Clone or update all repos in a GitHub organization')
parser.add_argument('org', metavar='ORGANIZATION')

args = parser.parse_args()

with open(expanduser('~/.github-oauth-token.json')) as f:
    github_token = json.load(f)['token']

current_url = 'https://api.github.com/orgs/{.org}/repos?per_page=200'.format(args)

root_dir = getcwd()

while current_url:
    r = requests.get(
        current_url,
        headers = {'Authorization': 'token {0}'.format(github_token)}
    )
    r.raise_for_status()
    for repo_data in r.json():
        name = repo_data['name']
        repo_directory = join(root_dir, name)
        if exists(repo_directory):
            print("Trying to update", name)
            check_call(['git', 'remote', 'update'], cwd=repo_directory)
            if 0 == call(['git', 'rev-parse', '--verify', '--quiet', '@{u}'], cwd=repo_directory):
                call(['git', 'merge', '--ff-only', '@{u}'], cwd=repo_directory)
            else:
                print("... so skipping update")
        else:
            print("Cloning", name)
            check_call(['git', 'clone', repo_data['ssh_url']], cwd=root_dir)
    if 'next' not in r.links:
        break
    current_url = r.links['next']['url']