Add rollup config

Author: francoispluchino

package.json

@@ -23,7 +23,9 @@
   "scripts": {
     "dev": "encore dev",
     "serve": "encore dev-server --port 9000",
-    "build": "encore production"
+    "build:style": "lessc less/scroller.less dist/scroller.css",
+    "build:module": "rollup -c",
+    "build": "yarn run build:module && yarn run build:style"
   },
   "engines": {},
   "main": "js/scroller.js",
@@ -34,6 +36,11 @@
   "devDependencies": {
     "@symfony/webpack-encore": "^0.23.0",
     "less": "^3.9.0",
-    "less-loader": "^4.1.0"
+    "less-loader": "^4.1.0",
+    "rollup": "^1.1.2",
+    "rollup-plugin-babel": "^4.3.2",
+    "rollup-plugin-commonjs": "^9.2.0",
+    "rollup-plugin-node-resolve": "^4.0.0",
+    "rollup-plugin-uglify": "^6.0.2"
   }
 }

rollup.config.js

@@ -0,0 +1,89 @@
+/*
+ * This file is part of the Fxp package.
+ *
+ * (c) François Pluchino <[email protected]>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+import babel from 'rollup-plugin-babel';
+import commonjs from 'rollup-plugin-commonjs';
+import resolve from 'rollup-plugin-node-resolve';
+import {uglify} from 'rollup-plugin-uglify';
+
+const baseConfig = {
+    input: 'js/scroller.js',
+    external: [
+        'jquery'
+    ],
+    plugins: [
+        resolve(),
+        commonjs({
+            include: 'node_modules/@fxp/jquery-pluginify/**'
+        }),
+        babel({
+            presets: [
+                '@babel/preset-env'
+            ]
+        })
+    ]
+};
+
+const iifeConfig = {
+    ...baseConfig,
+    output: {
+        format: 'iife',
+        name: 'FxpScroller',
+        exports: 'named',
+        globals: {
+            jquery: 'jQuery'
+        }
+    }
+};
+
+const uglifyConfig = {
+    compress: {
+        pure_getters: true,
+        unsafe: true,
+        unsafe_comps: true,
+        warnings: false
+    }
+};
+
+export default [
+    {
+        ...iifeConfig,
+        output: {
+            ...iifeConfig.output,
+            file: 'dist/scroller.js'
+        }
+    },
+    {
+        ...iifeConfig,
+        plugins: [...baseConfig.plugins, uglify(uglifyConfig)],
+        output: {
+            ...iifeConfig.output,
+            file: 'dist/scroller.min.js'
+        }
+    },
+    {
+        ...iifeConfig,
+        input: 'js/sticky-header.js',
+        output: {
+            ...iifeConfig.output,
+            name: 'FxpStickyHeader',
+            file: 'dist/sticky-header.js'
+        }
+    },
+    {
+        ...iifeConfig,
+        input: 'js/sticky-header.js',
+        plugins: [...baseConfig.plugins, uglify(uglifyConfig)],
+        output: {
+            ...iifeConfig.output,
+            name: 'FxpStickyHeader',
+            file: 'dist/sticky-header.min.js'
+        }
+    }
+];