Clone all repost, or update its master branch

clone_or_update_repo.py

import os
import subprocess

with open('repos.txt') as f:
    for repo in f.readlines():
        dir_name = repo.split('/')[1].split('.')[0]
        if os.path.exists(dir_name):
            print("Updating ... %s" % dir_name)
            subprocess.run(['git', '-C', dir_name, 'checkout', 'master'])
            subprocess.run(['git', '-C', dir_name, 'pull', 'origin', 'master'])
        else:
            print("Cloning... %s" % repo)
            subprocess.run(['git', 'clone', repo.strip()])