ember.js - How can I speed up development builds while developing a linked package? (Ember/Broccoli) -


my broccoli builds take lot of time. ~30 seconds build every time change line of js (i mean incremental re-builds dev server running, not complete build).

here's situation. have project ember addon project b npm link in. i'm developing project a, running ember server on project b.

every single time make change line of javascript in project , rebuild, see following files change in project b: 

b/dist/assets/vendor.css b/dist/assets/vendor.js b/dist/assets/vendor.map b/dist/assets/b.css b/dist/assets/b.css.map

my concern that, because i'm developing linked package, broccoli configuration such entire node_modules recombined vendor files.

is there way me configure ember/broccoli use separate file compile , segregate rest of vendor.js? b/dist/assets/a.min.css , b/dist/assets/a.min.js example?

...or i'm guessing @ cause of problem incorrectly?

thank in advance!

edit: here's info requested

slowest nodes (totaltime => 5% )              | total (avg)          ----------------------------------------------+--------------------- concat (11)                                   | 39239ms (3567 ms)    recastfilter (280)                            | 33127ms (118 ms)     babel (233)                                   | 14099ms (60 ms)      eslintvalidationfilter (5)                    | 12632ms (2526 ms)    lesscompiler (46)                             | 7191ms (156 ms)    slowest nodes (totaltime => 5% )              | total (avg)          ----------------------------------------------+--------------------- sourcemapconcat: concat: vendor /asset... (1) | 36270ms              lesscompiler (46)                             | 4029ms (87 ms)

here's index.js (of project a):

const engineaddon = require('ember-engines/lib/engine-addon'); const treemerger = require('broccoli-merge-trees'); const lesscompiler = require('broccoli-less-single'); const funnel = require('broccoli-funnel'); const path = require('path');  module.exports = engineaddon.extend({   name: 'ember-engine-admin-ui',   lazyloading: false,    treeforvendor(tree) {     let addontree = this.treegenerator(path.resolve(this.root, this.options.trees.addon));     let compiledlesstree = new lesscompiler(addontree, 'styles/addon.less', `styles/${this.name}.css`);     let sidebarcsstree = new funnel(path.dirname(require.resolve('sidebar-v2/css/leaflet-sidebar.css')), {       files: ['leaflet-sidebar.css'],       destdir: 'styles'     });      let sidebarjstree = new funnel(path.dirname(require.resolve('sidebar-v2/js/leaflet-sidebar.js')), {       files: ['leaflet-sidebar.js'],       destdir: 'js'     });     return new treemerger([tree, compiledlesstree, sidebarcsstree, sidebarjstree]);   },    included() {     this._super.included.apply(this, arguments);     this.import(`vendor/styles/${this.name}.css`);     this.import('vendor/js/leaflet-sidebar.js');     this.import('vendor/styles/leaflet-sidebar.css');   },    isdevelopingaddon() {     return true;   } });


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