Webpack (#4)

See https://github.com/flarum/core/pull/1367

* Replace gulp with webpack and npm scripts for JS compilation
* Set up Travis CI to commit compiled JS
* Restructure `js` directory; only one instance of npm, forum/admin are "submodules"
* Restructure `less` directory

extensions/statistics/js/admin.js

@@ -0,0 +1,10 @@
+/*
+ * This file is part of Flarum.
+ *
+ * (c) Toby Zerner <toby.zerner@gmail.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+export * from './src/admin';

extensions/statistics/js/admin/Gulpfile.js

@@ -1,10 +0,0 @@
-var gulp = require('flarum-gulp');
-
-gulp({
-  modules: {
-    'flarum/statistics': 'src/**/*.js'
-  },
-  files: [
-    'node_modules/frappe-charts/dist/frappe-charts.min.iife.js'
-  ]
-});

extensions/statistics/js/admin/package.json

@@ -1,10 +0,0 @@
-{
-  "private": true,
-  "devDependencies": {
-    "gulp": "^3.9.1",
-    "flarum-gulp": "^0.2.0"
-  },
-  "dependencies": {
-    "frappe-charts": "0.0.8"
-  }
-}

extensions/statistics/js/package.json

@@ -0,0 +1,14 @@
+{
+  "name": "@flarum/flarum-ext-statistics",
+  "version": "0.0.0",
+  "dependencies": {
+    "flarum-webpack-config": "^0.1.0-beta.8",
+    "frappe-charts": "0.0.8",
+    "webpack": "^4.0.0",
+    "webpack-cli": "^3.0.7"
+  },
+  "scripts": {
+    "build": "webpack --mode production --progress",
+    "watch": "webpack --mode development --watch"
+  }
+}

extensions/statistics/js/src/admin/index.js

@@ -3,7 +3,7 @@ import { extend } from 'flarum/extend';
 
 import DashboardPage from 'flarum/components/DashboardPage';
 
-import StatisticsWidget from 'flarum/statistics/components/StatisticsWidget';
+import StatisticsWidget from './components/StatisticsWidget';
 
 app.initializers.add('flarum-statistics', () => {
   extend(DashboardPage.prototype, 'availableWidgets', widgets => {

extensions/statistics/js/webpack.config.js

@@ -0,0 +1,3 @@
+const config = require('flarum-webpack-config');
+
+module.exports = config();