Method populateFolder

src/SystemData.cpp:104–173

}

void SystemData::populateFolder(FolderData* folder)
{
	std::string folderPath = folder->getPath();
	if(!fs::is_directory(folderPath))
	{
		LOG(LogWarning) << "Error - folder with path \"" << folderPath << "\" is not a directory!";
		return;
	}

	//make sure that this isn't a symlink to a thing we already have
	if(fs::is_symlink(folderPath))
	{
		//if this symlink resolves to somewhere that's at the beginning of our path, it's gonna recurse
		if(folderPath.find(fs::canonical(folderPath).string()) == 0)
		{
			LOG(LogWarning) << "Skipping infinitely recursive symlink \"" << folderPath << "\"";
			return;
		}
	}

	for(fs::directory_iterator end, dir(folderPath); dir != end; ++dir)
	{
		fs::path filePath = (*dir).path();

		if(filePath.stem().string().empty())
			continue;

		//this is a little complicated because we allow a list of extensions to be defined (delimited with a space)
		//we first get the extension of the file itself:
		std::string extension = filePath.extension().string();
		std::string chkExt;
		size_t extPos = 0;

		//folders *can* also match the extension and be added as games - this is mostly just to support higan
		//see issue #75: https://github.com/Aloshi/EmulationStation/issues/75
		bool isGame = false;
		do {
			//now we loop through every extension in the list
			size_t cpos = extPos;
			extPos = mSearchExtension.find(" ", extPos);
			chkExt = mSearchExtension.substr(cpos, ((extPos == std::string::npos) ? mSearchExtension.length() - cpos: extPos - cpos));

			//if it matches, add it
			if(chkExt == extension)
			{
				GameData* newGame = new GameData(this, filePath.generic_string(), filePath.stem().string());
				folder->pushFileData(newGame);
				isGame = true;
				break;
			}else if(extPos != std::string::npos) //if not, add one to the "next position" marker to skip the space when reading the next extension
			{
				extPos++;
			}

		} while(extPos != std::string::npos && chkExt != "" && chkExt.find(".") != std::string::npos);
	
		//add directories that also do not match an extension as folders
		if(!isGame && fs::is_directory(filePath))