__main__.py 文件源码

def main():
    # colorama works cross-platform to color text output in CLI
    colorama.init()

    parser = argparse.ArgumentParser(description='''
        aptos is a tool for validating client-submitted data using the
        JSON Schema vocabulary and converts JSON Schema documents into
        different data-interchange formats.
    ''', usage='%(prog)s [arguments] SCHEMA', epilog='''
        More information on JSON Schema: http://json-schema.org/''')
    subparsers = parser.add_subparsers(title='Arguments')

    validation = subparsers.add_parser(
        'validate', help='Validate a JSON instance')
    validation.add_argument(
        '-instance', type=str, default=json.dumps({}),
        help='JSON document being validated')
    validation.set_defaults(func=validate)

    conversion = subparsers.add_parser(
        'convert', help='''
        Convert a JSON Schema into a different data-interchange format''')
    conversion.add_argument(
        '-format', type=str, choices=['avro'], help='data-interchange format')
    conversion.set_defaults(func=convert)

    parser.add_argument(
        'schema', type=str, help='JSON document containing the description')

    arguments = parser.parse_args()
    arguments.func(arguments)