index.js

'use strict'

const Funnel = require('broccoli-funnel')
const mergeTrees = require('broccoli-merge-trees')

module.exports = {
  name: require('./package').name,

  treeForPublic(tree) {
    let trees = []
    if (tree) {
      trees.push(tree)
    }

    trees.push(
      new Funnel('node_modules/my-package/dist', {
        include: ['**/*.js', '**/*.svg'],
        destDir: '/assets/my-package/'
      })
    )

    return mergeTrees(trees, {
      overwrite: true
    })
  }
}