godot-third-person-basic-scene/scripts/user_settings.gd

extends Node

var cfg_path = "user://settings.cfg"
@onready var configuration = get_settings()

func save():
	Common.msg_debug("Save to config file : %s/%s" % [OS.get_user_data_dir(), cfg_path.replace("user://", "")])
	var file = ConfigFile.new()
	for section in configuration.keys():
		for key in configuration[section].keys():
			file.set_value(section, key, configuration[section][key])
	file.save(cfg_path)

func get_settings():
	var cfg = {}
	var config = ConfigFile.new()
	var cfg_file_content = config.load(cfg_path)
	if cfg_file_content != OK:
		return cfg
	for section in config.get_sections():
		print ("Config section : %s" % section)
		for parameter in config.get_section_keys(section):
			print("Config parameter : %s" % parameter)
			cfg[section] = {parameter:config.get_value(section, parameter)}
	return cfg