Function loadYamlFile

pcsx2/SIO/Memcard/MemoryCardFolder.cpp:28–54

A helper function to parse the YAML file

// A helper function to parse the YAML file
static std::optional<ryml::Tree> loadYamlFile(const char* filePath)
{
	const std::optional<std::string> buffer = FileSystem::ReadFileToString(filePath);
	if (!buffer.has_value())
		return std::nullopt;

	const ryml::csubstr yaml(ryml::to_csubstr(buffer.value()));
	const std::string file_name(Path::GetFileName(filePath));

	Error error;
	std::optional<ryml::Tree> tree = ParseYAMLFromString(yaml, ryml::to_csubstr(file_name), &error);
	if (!tree.has_value())
	{
		Console.ErrorFmt("[MemoryCard] Failed to parse folder memory card file '{}':", filePath);
		Console.Error(error.GetDescription());
		return std::nullopt;
	}

	// Repair damaged memory card entries - file names were saved to the YAML file with trailing \0's
	// due to a possible rapidyaml bug: https://github.com/biojppm/rapidyaml/issues/531
	for (ryml::NodeRef node : tree->rootref().children())
	{
		node.set_key(node.key().trimr('\0'));
	}

	return tree;
}

/// A helper function to write a YAML file
static void SaveYAMLToFile(const char* filename, const ryml::NodeRef& node)