Small Python template for shell operations

checkout_all.py

import os
import subprocess

def sh(cmd):
    print('sh: ' + cmd)
    ret = subprocess.run(cmd, shell=True, env=os.environ, executable='/bin/bash')
    if ret.returncode != 0:
        exit(ret.returncode)


def is_git_repo(dir):
    return os.path.exists(os.path.join(dir, '.git'))


def checkout_repo(dir):
    sh('cd \'' + dir + '\' && git fetch origin')


def main():
    for inode in os.listdir('.'):
        if os.path.isfile(inode):
            continue
        if not is_git_repo(dir=inode):
            continue
        checkout_repo(dir=inode)


if __name__ == '__main__':
    main()