def load_config_file()

in options/utils.py [0:0]

• 32 lines of code
• 13 McCabe index (conditional complexity)

def load_config_file(opts):
    config_file_name = getattr(opts, "common.config_file", None)
    if config_file_name is None:
        return opts
    is_master_node = is_master(opts)

    if is_master_node:
        config_file_name = get_local_path(opts=opts, path=config_file_name)

    if not os.path.isfile(config_file_name):
        if len(config_file_name.split('/')) == 1:
            # loading files from default config folder
            new_config_file_name = "{}/{}".format(DEFAULT_CONFIG_DIR, config_file_name)
            if not os.path.isfile(new_config_file_name) and is_master_node:
                logger.warning("Configuration file neither exists at {} nor at {}".format(config_file_name, new_config_file_name))
                return opts
            else:
                config_file_name = new_config_file_name
        else:
            # If absolute path of the file is passed
            if not os.path.isfile(config_file_name) and is_master_node:
                logger.warning("Configuration file does not exists at {}".format(config_file_name))
                return opts

    setattr(opts, "common.config_file", config_file_name)
    with open(config_file_name, 'r') as yaml_file:
        try:
            cfg = yaml.load(yaml_file, Loader=yaml.FullLoader)

            flat_cfg = flatten_yaml_as_dict(cfg)
            for k, v in flat_cfg.items():
                if hasattr(opts, k):
                    setattr(opts, k, v)
        except yaml.YAMLError as exc:
            if is_master_node:
                logger.warning('Error while loading config file: {}'.format(config_file_name))
                logger.warning('Error message: {}'.format(str(exc)))

    return opts