}

        @Override
        public Directory dir(String path) {
            File newDir = fileResolver.resolve(path);
            FileResolver dirResolver = fileResolver.newResolver(newDir);
            return new FixedDirectory(newDir, dirResolver, fileCollectionFactory.withResolver(dirResolver));
        }

        @Override
        public FileTree getAsFileTree() {

    protected
    fun newFile(fileName: String): File {
        return canonicalFile(fileName).apply {
            parentFile.mkdirs()
            createNewFile()
        }
    }

    protected
    fun newDir(relativePath: String): File =
        existing(relativePath).apply { assert(mkdirs()) }

    protected
    fun newOrExisting(fileName: String) =
        existing(fileName).let {
            when {

                    @Override
                    public FileVisitResult preVisitDirectory(Path dir, BasicFileAttributes attributes) throws IOException {
                        Path newDir = targetDir.resolve(sourceDir.relativize(dir));
                        Files.createDirectories(newDir);

                        return FileVisitResult.CONTINUE;
                    }
                });
            } catch (IOException e) {

// Start returns a StartResult, which may be awaited via [StartResult.Wait] to
// wait for all work done by Start to complete.
func Start(config Config) *StartResult {
	if config.TelemetryDir != "" {
		telemetry.Default = telemetry.NewDir(config.TelemetryDir)
	}
	result := new(StartResult)

	mode, _ := telemetry.Default.Mode()
	if mode == "off" {
		// Telemetry is turned off. Crash reporting doesn't work without telemetry

	if ctx.IsSet("log-prefix") {
		fileNameFunc = func() string {
			return fmt.Sprintf("%s-%s.log", ctx.String("log-prefix"), fmt.Sprintf("%X", time.Now().UTC().UnixNano()))
		}
	}

	output, err := logger.NewDir(logger.Options{
		Directory:       lgDirAbs,
		MaximumFileSize: int64(lgSize),
		Compress:        ctx.Bool("log-compress"),
		FileNameFunc:    fileNameFunc,
	})
	if err != nil {
		return nil, err
	}