cli.py 文件源码

def load_config(func):
    """Decorator for add load config file option"""

    @functools.wraps(func)
    def internal(*args, **kwargs):
        filename = kwargs.pop('config')
        if filename is None:
            click.echo('--config option is required.', err=True)
            raise SystemExit(1)

        config = load(pathlib.Path(filename))
        kwargs['config'] = config
        return func(*args, **kwargs)

    decorator = click.option(
        '--config',
        '-c',
        type=click.Path(exists=True),
        envvar='YUI_CONFIG_FILE_PATH',
    )

    return decorator(internal)