util.py 文件源码

def package_args(versioned=True):
    if versioned:
        def wrapper(f):
            return all_opt(sort_opt(pre_opt(click.argument(
                'packages',
                nargs=-1,
                callback=lambda ctx, param, value:
                            ctx.obj.lookup_package_version(value),
            )(f))))
        return wrapper
    else:
        return click.argument(
            'packages',
            nargs=-1,
            callback=lambda ctx, param, value: ctx.obj.lookup_package(value),
        )