deploy.py 文件源码

def _cleanup_old_versions(name):
    logger.info('cleaning up old versions of {0}. Keeping {1}'.format(
        name, REVISIONS))
    versions = _versions(name)
    for version in versions[0:(len(versions) - REVISIONS)]:
        logger.debug('deleting {} version {}'.format(name, version))
        aws_lambda('delete_function',
                   FunctionName=name,
                   Qualifier=version)