Bundle helmet using rollup

.babelrc

@@ -1,55 +1,17 @@
 {
-    "env": {
-        "commonjs": {
-            "presets": [
-                ["env", {
-                    "targets": {
-                        "browsers": ["last 1 versions", "ie >= 10"]
-                    },
-                    "modules": "commonjs",
-                    "loose": true,
-                    "useBuiltIns": true
-                }]
-            ],
-            "plugins": [
-                "transform-export-extensions",
-                "transform-class-properties",
-                "transform-object-rest-spread",
-                "transform-remove-strict-mode"
-            ]
-        },
-        "test": {
-            "plugins": [
-                ["istanbul", {
-                    "exclude": [
-                        "**/node_modules/**",
-                        "**/packages/**",
-                        "**/test/**",
-                        "**/Test*"
-                    ]
-                }],
-                "transform-export-extensions",
-                "transform-class-properties",
-                "transform-object-rest-spread",
-                "transform-remove-strict-mode"
-            ]
-        }
-    },
     "presets": [
         ["env", {
             "targets": {
                 "browsers": ["last 1 versions", "ie >= 10"]
             },
             "modules": false,
-            "loose": true,
-            "useBuiltIns": true
+            "loose": true
         }],
         "react"
     ],
     "plugins": [
-        "transform-export-extensions",
         "transform-class-properties",
         "transform-object-rest-spread",
-        "transform-remove-strict-mode"
+        "external-helpers"
     ]
 }

.npmignore

@@ -12,3 +12,4 @@ test/
 node_modules
 src
 travis.yml
+rollup.config.js

karma.config.js

@@ -22,11 +22,10 @@ module.exports = function(config) {
         // frameworks to use
         frameworks: ["chai-sinon", "mocha"],
 
-        files: ["./test/test.js"],
+        files: ["./test/*.js"],
 
         preprocessors: {
-            // add webpack as preprocessor
-            "./test/test.js": ["webpack", "sourcemap"]
+            "./test/*.js": ["rollup", "sourcemap"]
         },
 
         coverageReporter: {
@@ -40,23 +39,32 @@ module.exports = function(config) {
             ]
         },
 
-        webpack: {
-            devtool: "inline-source-map",
-            module: {
-                rules: [
-                    {
-                        test: /\.js$/,
-                        // exclude this dirs from coverage
-                        exclude: [/node_modules/],
-                        loader: "babel-loader"
-                    }
-                ]
+        rollupPreprocessor: {
+            output: {
+                format: "iife",
+                name: "helmet",
+                sourcemap: "inline"
             },
-            watch: true
-        },
-
-        webpackServer: {
-            noInfo: true
+            plugins: [
+                require("rollup-plugin-replace")({
+                    "process.env.NODE_ENV": "'development'"
+                }),
+                require("rollup-plugin-babel")({
+                    exclude: "node_modules/**",
+                    plugins: [
+                        [
+                            "istanbul",
+                            {
+                                exclude: ["**/node_modules/**", "**/test/**"]
+                            }
+                        ]
+                    ]
+                }),
+                require("rollup-plugin-node-resolve")({
+                    browser: true
+                }),
+                require("rollup-plugin-commonjs")()
+            ]
         },
 
         // test results reporter to use

package.json

@@ -36,22 +36,17 @@
     "react-side-effect": "^1.1.0"
   },
   "devDependencies": {
-    "babel-cli": "^6.24.0",
     "babel-core": "^6.24.0",
     "babel-eslint": "^7.1.1",
-    "babel-loader": "^6.4.1",
-    "babel-plugin-add-module-exports": "^0.2.1",
+    "babel-plugin-external-helpers": "^6.22.0",
     "babel-plugin-istanbul": "^4.0.0",
     "babel-plugin-transform-class-properties": "^6.23.0",
-    "babel-plugin-transform-export-extensions": "^6.22.0",
     "babel-plugin-transform-object-rest-spread": "^6.23.0",
-    "babel-plugin-transform-remove-strict-mode": "^0.0.2",
     "babel-preset-env": "^1.2.2",
     "babel-preset-react": "^6.23.0",
     "chai": "^3.5.0",
     "codecov": "^2.1.0",
     "conventional-changelog-cli": "^1.3.1",
-    "cross-env": "^3.2.4",
     "cz-conventional-changelog": "^2.0.0",
     "eslint": "^3.18.0",
     "eslint-config-nfl": "^11.1.0",
@@ -70,31 +65,33 @@
     "karma-firefox-launcher": "^1.0.1",
     "karma-html-reporter": "^0.2.7",
     "karma-mocha": "^1.3.0",
+    "karma-rollup-preprocessor": "^6.1.0",
     "karma-sourcemap-loader": "^0.3.7",
     "karma-spec-reporter": "^0.0.30",
     "karma-tap-reporter": "^0.0.6",
-    "karma-webpack": "^2.0.3",
     "mocha": "^3.2.0",
     "prettier": "^1.4.4",
     "react": "^15.x",
     "react-dom": "^15.x",
     "rimraf": "^2.6.1",
+    "rollup": "^0.67.0",
+    "rollup-plugin-babel": "^3.0.7",
+    "rollup-plugin-commonjs": "^9.2.0",
+    "rollup-plugin-node-resolve": "^3.4.0",
+    "rollup-plugin-replace": "^2.1.0",
     "sinon": "^2.1.0",
-    "sinon-chai": "^2.8.0",
-    "webpack": "^2.2.1"
+    "sinon-chai": "^2.8.0"
   },
   "scripts": {
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s",
     "clean": "rimraf lib coverage es",
     "lint": "eslint --ignore-path .gitignore --fix -- .",
-    "test": "cross-env BABEL_ENV=test karma start karma.config.js",
+    "test": "karma start karma.config.js",
     "posttest": "istanbul report lcov text",
     "pretest": "npm run clean && npm run lint",
     "commit": "git-cz",
-    "compile": "npm run compile:commonjs && npm run compile:es",
-    "compile:commonjs": "cross-env BABEL_ENV=commonjs babel src --out-dir lib",
-    "compile:es": "cross-env BABEL_ENV=es babel src --out-dir es --ignore test.js",
-    "prepublish": "npm run compile"
+    "build": "rollup -c",
+    "prepublish": "npm run build"
   },
   "config": {
     "commitizen": {

rollup.config.js

@@ -0,0 +1,37 @@
+import babel from "rollup-plugin-babel";
+
+import pkg from "./package.json";
+
+const baseConfig = {
+    input: "src/Helmet.js",
+    plugins: [
+        babel({
+            exclude: "node_modules/**"
+        })
+    ],
+    external: [
+        ...Object.keys(pkg.dependencies),
+        ...Object.keys(pkg.peerDependencies)
+    ]
+};
+
+export default [
+    Object.assign(
+        {
+            output: {
+                file: pkg.main,
+                format: "cjs"
+            }
+        },
+        baseConfig
+    ),
+    Object.assign(
+        {
+            output: {
+                file: "es/Helmet.js",
+                format: "esm"
+            }
+        },
+        baseConfig
+    )
+];

src/Helmet.js

@@ -284,4 +284,3 @@ const HelmetExport = Helmet(HelmetSideEffects);
 HelmetExport.renderStatic = HelmetExport.rewind;
 
 export {HelmetExport as Helmet};
-export default HelmetExport;