A powerful spider system in python.

def cli(ctx, **kwargs):
    """
    A powerful spider system in python.
    """
    if kwargs['add_sys_path']:
        sys.path.append(os.getcwd())

    logging.config.fileConfig(kwargs['logging_config'])

    # get db from env
    for db in ('taskdb', 'projectdb', 'resultdb'):
        if kwargs[db] is not None:
            continue
        if os.environ.get('MYSQL_NAME'):
            kwargs[db] = utils.Get(lambda db=db: connect_database(
                'sqlalchemy+mysql+%s://%s:%s/%s' % (
                    db, os.environ['MYSQL_PORT_3306_TCP_ADDR'],
                    os.environ['MYSQL_PORT_3306_TCP_PORT'], db)))
        elif os.environ.get('MONGODB_NAME'):
            kwargs[db] = utils.Get(lambda db=db: connect_database(
                'mongodb+%s://%s:%s/%s' % (
                    db, os.environ['MONGODB_PORT_27017_TCP_ADDR'],
                    os.environ['MONGODB_PORT_27017_TCP_PORT'], db)))
        elif ctx.invoked_subcommand == 'bench':
            if kwargs['data_path'] == './data':
                kwargs['data_path'] += '/bench'
                shutil.rmtree(kwargs['data_path'], ignore_errors=True)
                os.mkdir(kwargs['data_path'])
            if db in ('taskdb', 'resultdb'):
                kwargs[db] = utils.Get(lambda db=db: connect_database('sqlite+%s://' % (db)))
            elif db in ('projectdb', ):
                kwargs[db] = utils.Get(lambda db=db: connect_database('local+%s://%s' % (
                    db, os.path.join(os.path.dirname(__file__), 'libs/bench.py'))))
        else:
            if not os.path.exists(kwargs['data_path']):
                os.mkdir(kwargs['data_path'])
            kwargs[db] = utils.Get(lambda db=db: connect_database('sqlite+%s:///%s/%s.db' % (
                db, kwargs['data_path'], db[:-2])))
            kwargs['is_%s_default' % db] = True

    # create folder for counter.dump
    if not os.path.exists(kwargs['data_path']):
        os.mkdir(kwargs['data_path'])

    # message queue, compatible with old version
    if kwargs.get('message_queue'):
        pass
    elif kwargs.get('amqp_url'):
        kwargs['message_queue'] = kwargs['amqp_url']
    elif os.environ.get('RABBITMQ_NAME'):
        kwargs['message_queue'] = ("amqp://guest:guest@%(RABBITMQ_PORT_5672_TCP_ADDR)s"
                                   ":%(RABBITMQ_PORT_5672_TCP_PORT)s/%%2F" % os.environ)
    elif kwargs.get('beanstalk'):
        kwargs['message_queue'] = "beanstalk://%s/" % kwargs['beanstalk']

    for name in ('newtask_queue', 'status_queue', 'scheduler2fetcher',
                 'fetcher2processor', 'processor2result'):
        if kwargs.get('message_queue'):
            kwargs[name] = utils.Get(lambda name=name: connect_message_queue(
                name, kwargs.get('message_queue'), kwargs['queue_maxsize']))
        else:
            kwargs[name] = connect_message_queue(name, kwargs.get('message_queue'),
                                                 kwargs['queue_maxsize'])

    # phantomjs-proxy
    if kwargs.get('phantomjs_proxy'):
        pass
    elif os.environ.get('PHANTOMJS_NAME'):
        kwargs['phantomjs_proxy'] = os.environ['PHANTOMJS_PORT_25555_TCP'][len('tcp://'):]

    # puppeteer-proxy
    if kwargs.get('puppeteer_proxy'):
        pass
    elif os.environ.get('PUPPETEER_NAME'):
        kwargs['puppeteer_proxy'] = os.environ['PUPPETEER_PORT_22222_TCP'][len('tcp://'):]

    ctx.obj = utils.ObjectDict(ctx.obj or {})
    ctx.obj['instances'] = []
    ctx.obj.update(kwargs)

    if ctx.invoked_subcommand is None and not ctx.obj.get('testing_mode'):
        ctx.invoke(all)
    return ctx