Method loadConfig

src/SystemData.cpp:186–283

creates systems from information located in a config file

//creates systems from information located in a config file
bool SystemData::loadConfig(const std::string& path, bool writeExample)
{
	deleteSystems();

	LOG(LogInfo) << "Loading system config file...";

	if(!fs::exists(path))
	{
		LOG(LogInfo) << "System config file \"" << path << "\" doesn't exist!";
		if(writeExample)
			writeExampleConfig(path);

		return false;
	}

	std::ifstream file(path.c_str());
	if(file.is_open())
	{
		size_t lineNr = 0;
		std::string line;
		std::string sysName, sysDescName, sysPath, sysExtension, sysCommand;
		while(file.good())
		{
			lineNr++;
			std::getline(file, line);

			//remove whitespace from line through STL and lambda magic
			line.erase(std::remove_if(line.begin(), line.end(), [&](char c){ return std::string("\t\r\n\v\f").find(c) != std::string::npos; }), line.end());

			//skip blank lines and comments
			if(line.empty() || line.at(0) == '#')
				continue;

			//find the name (left of the equals sign) and the value (right of the equals sign)
			bool lineValid = false;
			std::string varName;
			std::string varValue;
			const std::string::size_type equalsPos = line.find('=', 1);
			if(equalsPos != std::string::npos)
			{
				lineValid = true;
				varName = line.substr(0, equalsPos);
				varValue = line.substr(equalsPos + 1, line.length() - 1);
			}

			if(lineValid)
			{
				//map the value to the appropriate variable
				if(varName == "NAME")
					sysName = varValue;
				else if(varName == "DESCNAME")
					sysDescName = varValue;
				else if(varName == "PATH")
				{
					if(varValue[varValue.length() - 1] == '/')
						sysPath = varValue.substr(0, varValue.length() - 1);
					else
						sysPath = varValue;