cli.py 文件源码

def cli():
    try:
        parser = get_parser(all_commands())
        unknown = None
        args, unknown = parser.parse_known_args()
        set_cmd_env(args.env)
        if args.parse_unknown:
            args.func(args, unknown)
        else:
            args = parser.parse_args()
            args.func(args)

    except (argparse.ArgumentTypeError, argparse.ArgumentError) as exc:
        if os.getenv("APPR_DEBUG", "false") == "true":
            raise
        else:
            parser.error(exc.message)