def read_option_files()

in mysql-connector-python/lib/mysql/connector/optionfiles.py [0:0]

• 58 lines of code
• 22 McCabe index (conditional complexity)

def read_option_files(**config: Union[str, List[str]]) -> Dict[str, Any]:
    """
    Read option files for connection parameters.

    Checks if connection arguments contain option file arguments, and then
    reads option files accordingly.
    """
    if "option_files" in config:
        try:
            if isinstance(config["option_groups"], str):
                config["option_groups"] = [config["option_groups"]]
            groups = config["option_groups"]
            del config["option_groups"]
        except KeyError:
            groups = ["client", "connector_python"]

        if isinstance(config["option_files"], str):
            config["option_files"] = [config["option_files"]]
        option_parser = MySQLOptionsParser(
            list(config["option_files"]), keep_dashes=False
        )
        del config["option_files"]

        config_from_file: Dict[str, Any] = (
            option_parser.get_groups_as_dict_with_priority(*groups)
        )
        config_options: Dict[str, Tuple[str, int, str]] = {}
        for group in groups:
            try:
                for option, value in config_from_file[group].items():
                    value += (group,)
                    try:
                        if option == "socket":
                            option = "unix_socket"
                            option_parser.set(group, "unix_socket", value[0])

                        if option not in CNX_POOL_ARGS and option != "failover":
                            _ = DEFAULT_CONFIGURATION[option]

                        if (
                            option not in config_options
                            or config_options[option][1] <= value[1]
                        ):
                            config_options[option] = value
                    except KeyError:
                        if group == "connector_python":
                            raise AttributeError(
                                f"Unsupported argument '{option}'"
                            ) from None
            except KeyError:
                continue

        for option, values in config_options.items():
            value, _, section = values
            if (
                option not in config
                and option_parser.has_section(section)
                and option_parser.has_option(section, option)
            ):
                if option in ("password", "passwd"):  # keep the value as string
                    config[option] = str(value)
                else:
                    try:
                        config[option] = ast.literal_eval(value)
                    except (ValueError, TypeError, SyntaxError):
                        config[option] = value
        if "socket" in config:
            config["unix_socket"] = config.pop("socket")
    return config