index.js

'use strict';
const resolve = require('resolve');
const path = require('path');
const mergeTrees = require('broccoli-merge-trees');
const Funnel = require('broccoli-funnel');
const fastbootTransform = require('fastboot-transform');

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

  treeForVendor() {
    let dist = path.join(this.pathBase('leaflet'), 'dist');

    let leafletJs = fastbootTransform(
      new Funnel(dist, {
        files: ['leaflet-src.js'],
        destDir: 'leaflet'
      })
    );

    let leafletFiles = new Funnel(dist, {
      exclude: ['leaflet.js', 'leaflet-src.js', '*.html'],
      destDir: 'leaflet'
    });

    return mergeTrees([leafletJs, leafletFiles]);
  },

  included(app) {
    this._super.included.apply(this, arguments);

    // Addon options from the apps ember-cli-build.js
    let options = app.options[this.name] || {};

    app = this._findHost();

    if (!options.excludeJS) {
      app.import('vendor/leaflet/leaflet-src.js');
    }

    // Import leaflet css
    if (!options.excludeCSS) {
      app.import('vendor/leaflet/leaflet.css');
    }

    // Import leaflet images
    if (!options.excludeImages) {
      let imagesDestDir = '/assets/images';
      app.import('vendor/leaflet/images/layers-2x.png', {
        destDir: imagesDestDir
      });
      app.import('vendor/leaflet/images/layers.png', {
        destDir: imagesDestDir
      });
      app.import('vendor/leaflet/images/marker-icon-2x.png', {
        destDir: imagesDestDir
      });
      app.import('vendor/leaflet/images/marker-icon.png', {
        destDir: imagesDestDir
      });
      app.import('vendor/leaflet/images/marker-shadow.png', {
        destDir: imagesDestDir
      });
    }
  },

  pathBase(packageName) {
    return path.dirname(resolve.sync(packageName + '/package.json', { basedir: __dirname }));
  }
};