Added rollup to build

.npmignore

@@ -4,3 +4,4 @@ deploy_key.enc
 deploy.sh
 Gemfile
 Gemfile.lock
+src

package.json

@@ -3,11 +3,25 @@
   "version": "1.1.2",
   "description": "Show/hide password plugin for twitter bootstrap.",
   "main": "dist/bootstrap-show-password.min.js",
+  "module": "dist/bootstrap-show-password-es.min.js",
   "devDependencies": {
-    "eslint": "^5.16.0"
+    "@babel/preset-env": "^7.4.4",
+    "eslint": "^5.16.0",
+    "headr": "^0.0.4",
+    "npm-run-all": "^4.1.5",
+    "rollup": "^1.11.3",
+    "rollup-plugin-babel": "^4.3.2",
+    "rollup-plugin-babel-minify": "^8.0.0",
+    "rollup-plugin-commonjs": "^9.3.4",
+    "rollup-plugin-inject": "^2.2.0",
+    "rollup-plugin-node-resolve": "^4.2.3"
   },
   "scripts": {
     "lint": "eslint src",
+    "build:base": "rollup -c",
+    "build:min": "NODE_ENV=production rollup -c",
+    "build:banner": "find dist -name '*.min.js' -exec headr {} -o {} --version --homepage --author --license \\;",
+    "build": "run-s build:*",
     "docs": "bundle exec jekyll build",
     "docs-serve": "bundle exec jekyll serve"
   },

rollup.config.js

@@ -0,0 +1,60 @@
+import babel from 'rollup-plugin-babel'
+import resolve from 'rollup-plugin-node-resolve'
+import commonjs from 'rollup-plugin-commonjs'
+import minify from 'rollup-plugin-babel-minify'
+import inject from 'rollup-plugin-inject'
+
+const external = ['jquery']
+const globals = {
+  jquery: 'jQuery'
+}
+const config = []
+const plugins = [
+  inject({
+    include: '**/*.js',
+    exclude: 'node_modules/**',
+    $: 'jquery'
+  }),
+  resolve(),
+  commonjs(),
+  babel({
+    exclude: 'node_modules/**'
+  })
+]
+
+if (process.env.NODE_ENV === 'production') {
+  plugins.push(minify({
+    comments: false
+  }))
+}
+
+let out = 'dist/bootstrap-show-password.js'
+if (process.env.NODE_ENV === 'production') {
+  out = out.replace(/.js$/, '.min.js')
+}
+config.push({
+  input: 'src/bootstrap-show-password.js',
+  output: {
+    name: 'BootstrapShowPassword',
+    file: out,
+    format: 'umd',
+    globals
+  },
+  external,
+  plugins
+})
+
+out = 'dist/bootstrap-show-password.esm.js'
+if (process.env.NODE_ENV === 'production') {
+  out = out.replace(/.js$/, '.min.js')
+}
+config.push({
+  input: 'src/bootstrap-show-password.js',
+  output: {
+    file: out,
+    format: 'esm'
+  },
+  plugins: plugins.slice(1)
+})
+
+export default config

src/.babelrc

@@ -0,0 +1,12 @@
+{
+  "presets": [
+    [
+      "@babel/env",
+      {
+        "modules": false,
+        "useBuiltIns": "usage",
+        "corejs": 3
+      }
+    ]
+  ]
+}