Mod Config: API Method to duplicate a config

[KANAjetzt]

A method to duplicate an existing config (in most cases the default config) would simplify the creation of a modifiable config since the default config is read-only.

For example:
duplicate_config(config: ModConfig, config_name: String) -> ModConfig:

godot-mod-loader/addons/mod_loader/api/config.gd

Lines 12 to 69 in aab3aaa

	## Creates a new configuration for a mod.[br]
	## [br]
	## [b]Parameters:[/b][br]
	## - [code]mod_id[/code] ([String]): The ID of the mod.[br]
	## - [code]config_name[/code] ([String]): The name of the configuration.[br]
	## - [code]config_data[/code] ([Dictionary]): The configuration data to be stored.[br]
	## [br]
	## [b]Returns:[/b][br]
	## - [ModConfig]: The created ModConfig object if successful, or null otherwise.
	static func create_config(mod_id: String, config_name: String, config_data: Dictionary) -> ModConfig:
	var default_config: ModConfig = get_default_config(mod_id)
	if not default_config:
	ModLoaderLog.error(
	"Failed to create config \"%s\". No config schema found for \"%s\"."
	% [config_name, mod_id], LOG_NAME
	)
	return null
	# Make sure the config name is not empty
	if config_name == "":
	ModLoaderLog.error(
	"Failed to create config \"%s\". The config name cannot be empty."
	% config_name, LOG_NAME
	)
	return null
	# Make sure the config name is unique
	if ModLoaderStore.mod_data[mod_id].configs.has(config_name):
	ModLoaderLog.error(
	"Failed to create config \"%s\". A config with the name \"%s\" already exists."
	% [config_name, config_name], LOG_NAME
	)
	return null
	# Create the config save path based on the config_name
	var config_file_path := _ModLoaderPath.get_path_to_mod_configs_dir(mod_id).path_join("%s.json" % config_name)
	# Initialize a new ModConfig object with the provided parameters
	var mod_config := ModConfig.new(
	mod_id,
	config_data,
	config_file_path
	)
	# Check if the mod_config is valid
	if not mod_config.is_valid:
	return null
	# Store the mod_config in the mod's ModData
	ModLoaderStore.mod_data[mod_id].configs[config_name] = mod_config
	# Save the mod_config to a new config JSON file in the mod's config directory
	var is_save_success := mod_config.save_to_file()
	if not is_save_success:
	return null
	ModLoaderLog.debug("Created new config \"%s\" for mod \"%s\"" % [config_name, mod_id], LOG_NAME)
	return mod_config