class IncrementalRelativeFileSets {

    @NonNull
    public static ImmutableMap<RelativeFile, FileStatus> fromDirectory(@NonNull File directory) {
        Preconditions.checkArgument(directory.isDirectory(), "!directory.isDirectory()");
        return ImmutableMap.copyOf(
                Maps.asMap(
                        RelativeFiles.fromDirectory(directory),
                        Functions.constant(FileStatus.NEW)));
    }

    private  IncrementalRelativeFileSets();

}