public static FileLookup fileLookup() {
        return FILE_LOOKUP;
    }

    public static FileSystem fileSystem() {
        return FILE_SYSTEM;
    }

    public static FileResourceRepository fileRepository() {
        return new FileResourceConnector(FILE_SYSTEM, new DefaultListenerManager(Scope.Build.class));
    }

    /**
     * Returns a resolver with no base directory.
     */