@OutputDirectory
    public abstract DirectoryProperty getDestinationDirectory();

    @Inject
    protected abstract FileSystemOperations getFs();

    @TaskAction
    public void generate() {
        // TODO: This could probably use InputChanges API
        File destinationDirectory = getDestinationDirectory().get().getAsFile();
        getFs().delete(spec -> spec.delete(destinationDirectory));

            task.getDocbookStylesheets().from(userGuideStyleSheetConf);

            task.getClasspath().from(userGuideTask);

            task.getDestinationDirectory().convention(dslReference.getStagingRoot().dir("dsl"));
        });

        extension.dslReference(dslRef -> {
            // DSL ref has custom javascript
            ConfigurableFileTree js = objects.fileTree();

    @InputFile
    abstract RegularFileProperty getStylesheetHighlightFile();

    @Classpath
    abstract ConfigurableFileCollection getClasspath();

    @OutputDirectory
    abstract DirectoryProperty getDestinationDirectory();

    @Inject
    abstract WorkerLeaseService getWorkerLeaseService();

    @Inject
    abstract ObjectFactory getObjects()

    @Inject
    abstract FileSystemOperations getFs()

    @Inject

            task.getDocumentationFiles().from(extension.getUserManual().getRoot());
            task.getDocumentationRoot().convention(extension.getUserManual().getRoot());
            task.getDestinationDirectory().convention(layout.getBuildDirectory().dir("tmp/" + task.getName()));
        });

        TaskProvider<Sync> userguideFlattenSources = tasks.register("stageUserguideSource", Sync.class, task -> {