Can gulp-freemarker be used in a gulp build to address what fmpp.tools.AntTask does in an ant build?

Question

new here, so I hope this question is adequate.

We have a an ant build file that runs a task to preprocess html template files. Here is the snippet from the build file.

        <!-- Process the templates. -->
    <fmpp sourceroot="on-board" outputroot="${template.dir}" removeExtensions="TMPL" >
     <include name="**/*.TMPL" />
      <data expandProperties="true">
       DEBUG: true
       CONTENT_REVISION: r${Revision}
       CONTENT_PACK: vzw-${TRACK}
      </data>
    </fmpp>

I am working with polymer now and want to convert our build to use gulp because fmpp (and yuicompressor) are choking on some of the js files in polymer due to reserved words. I found a gulp-freemarker plugin that I thought might be able to substitute for fmpp. However, 1) I am not sure of this, and 2) I can not seem to get anything working with gulp-freemarker including their example code from github.

Here is my gulpfile:

var gulp = require('gulp');
var freemarker = require("gulp-freemarker");

gulp.task('myfmpp', function() 
{
  return gulp.src("./app/en_US/hello.json")
  .pipe(freemarker(
  {
     viewRoot: "app/en_US/",
     options: {}
   }))
  .pipe(gulp.dest("./www"))
});

This seems to run OK - no errors - but there is no apparent output. Since I am a bit new to this stuff, I may not know what I should be looking for...

Anyway, my ultimate goal is to achieve the same preprocessing result from gulp-freemarker as with ant/fmpp. Can anyone help answer this and point me in the right direction?

Thanks!

• Ken