A simple Python script for copying an organization's repositories

github-backup.py

#!/usr/bin/env python3
#
# Requires https://pygithub.readthedocs.io/en/latest
#
# Set the GITHUB_TOKEN to a personal access token with all repo scopes

import os
import subprocess
import sys

from github import Github
from optparse import OptionParser

token = os.getenv('GITHUB_TOKEN')
if token is None:
    print("Must set GITHUB_TOKEN")
    sys.exit(1)

parser = OptionParser()
parser.add_option("-u", "--user", dest="user", help="User to use for authentication")
parser.add_option("-o", "--org", dest="org", help="Organization to back up")
(options, args) = parser.parse_args()

g = Github(token)

os.putenv('GIT_USER', options.user)

if options.org:    name = options.org
    org = g.get_organization(name)
    if not os.path.exists(name):        os.mkdir(name)
    for repo in org.get_repos(type='all'):
        git_path = os.path.join(name, '{}.git'.format(repo.name))
        print(git_path)
        helper_sh = '!f() { echo \'username=${GIT_USER}\'; echo \'password=${GITHUB_TOKEN}\'; }; f'
        if os.path.exists(git_path):
            subprocess.run('cd {} && git -c credential.helper="{}" fetch --all'.format(git_path, helper_sh), shell=True, check=True)
        else:
            subprocess.run('cd {} && git -c credential.helper="{}" clone --mirror --bare  {}'.format(name, helper_sh, repo.clone_url), shell=True, check=True)

How can I put my all build stage i.e., SCM Checkout, Build, test, and uploading artifacts etc.. in a shared library? any example?