Git batch (run git commands in all sub-directories)

gb

#!/usr/bin/env python3
import os
import sys
import subprocess

commandMap = {
	# Key(command) => Value(Tuple(list of commands to run, whether to ask for confirmation))
	'rebase': (['git', 'svn', 'rebase'], False),
	'diff': (['git', 'diff'], False),
	'dcommit': (['git', 'svn', 'dcommit'], False),
	'fetch': (['git', 'fetch', 'origin'], False),
	'fetch': (['git', 'pull', 'origin'], False),
	'status': (['git', 'status', '-s'], False),
	'add': (['git', 'add', '.'], False),
	'commit': (['git', 'commit'], False),
	'stash': (['git', 'stash'], False),
	'pop': (['git', 'stash', 'pop'], False),
	'push': (['git', 'push', '-v'], False),
	'clear': (['git', 'stash', 'clear'], False),
	'list': (['git', 'stash', 'list'], False),
	'resethard': (['git', 'reset', '--hard'], True),
}

def callCommand(command_list):
    p = subprocess.Popen(command_list)
    os.waitpid(p.pid, 0)

def callCommandOnGitDirs(root_dir, command_list):
    for dir in os.listdir(root_dir):
        if not os.path.isdir(dir):
            continue
        oldDir = os.getcwd()
        try:
            os.chdir(dir)
            if '.git' in os.listdir('.') and os.path.isdir('.git'):
                print("###", " ".join(command_list), "on:", dir)
                callCommand(command_list)
        finally:
            os.chdir(oldDir)

def usage():
    print("Usage: gitbatch <option>")
    print("")
    print("option:")
    print("    rebase: call 'git svn rebase' on each git repository in current directory")
    print("    dcommit: call 'git svn dcommit' on each git repository in current directory")

def checkArgs():
    if len(sys.argv) < 2:
        print("ERROR: you didn't provide an option")
        usage()
    elif len(sys.argv[1]) < 2:
        print("ERROR: you have to use at least 2 letter abbreviations\n")
        usage()
    else:
        return

    sys.exit(0)

def main():
    checkArgs()

    the_command = sys.argv[1]

    for command, tup in commandMap.items():
        command_list, confirm = tup
        if command.startswith(the_command):
            if confirm:
                c = input('are you sure you want to run: "' + " ".join(command_list) + '" (y/N)? ')
            if not confirm or c == 'y':
                callCommandOnGitDirs('.', command_list)
            break

if __name__ == "__main__":
    main()