manage.py 文件源码

def main():
    """Parse options and call the appropriate class/method."""
    script_name = sys.argv[0]
    if len(sys.argv) < 2:
        print(_("\nOpenStack masakari version: %(version)s\n") %
              {'version': version.version_string()})
        print(script_name + " category action [<args>]")
        print(_("Available categories:"))
        for category in CATEGORIES:
            print(_("\t%s") % category)
        sys.exit(2)

    try:
        CONF(sys.argv[1:], project='masakari',
             version=version.version_string())
        logging.setup(CONF, "masakari")
        python_logging.captureWarnings(True)
    except cfg.ConfigDirNotFoundError as details:
        print(_("Invalid directory: %s") % details)
        sys.exit(2)
    except cfg.ConfigFilesNotFoundError as e:
        cfg_files = ', '.join(e.config_files)
        print(_("Failed to read configuration file(s): %s") % cfg_files)
        sys.exit(2)

    fn = CONF.category.action_fn
    fn_args = fetch_func_args(fn)
    fn(*fn_args)