Brocfile.js

/* global require, module */

var EmberApp = require('ember-cli/lib/broccoli/ember-app');
var pickFiles   = require('broccoli-static-compiler'); 
var mergeTrees  = require('broccoli-merge-trees');
var vulcanize = require('broccoli-vulcanize');

var app = new EmberApp();

// Use `app.import` to add additional libraries to the generated
// output files.
//
// If you need to use different assets in different
// environments, specify an object as the first parameter. That
// object's keys should be the environment name and the values
// should be the asset to use in that environment.
//
// If the library that you are including contains AMD or ES6
// modules that you would like to import into your application
// please specify an object with the list of modules as keys
// along with the exports of each module as its value.

// module.exports = app.toTree();

var inputTree = 'app';
var options = {
  input: 'elements.html',
  output: 'assets/vulcanized.html',
  excludes: [/^data:/, /^http[s]?:/, /^\//],
  abspath: '',
  stripExcludes: false,
  stripComments: false,
  inlineScripts: true,
  inlineCss: true,
  implicitStrip: false
};

var polymer = pickFiles('bower_components/', {  
  srcDir: '',
  files: [
    'webcomponentsjs/webcomponents-lite.js',
    // 'polymer/polymer.html'
//  'polymer/polymer.js'
  ],
  destDir: '/assets'
});
 
var polymerVulcanize = vulcanize(inputTree, options);
module.exports = mergeTrees([polymerVulcanize, polymer, app.toTree()]);