rollup-plugin-babel - npm Package Compare versions

Comparing version 2.6.1 to 2.7.0

CHANGELOG.md

 # rollup-plugin-babel changelog
 
+## 2.7.0
+
+* Add `externalHelpersWhitelist` option ([#92](https://github.com/rollup/rollup-plugin-babel/pull/92))
+* Ignore `only` option during preflight checks ([#98](https://github.com/rollup/rollup-plugin-babel/issues/98))
+* Use `options.onwarn` if available ([#84](https://github.com/rollup/rollup-plugin-babel/issues/84))
+* Update documentation and dependencies
+
 ## 2.6.1
 
-Return a `name`
+* Return a `name`
 
@@ -7,0 +14,0 @@ ## 2.6.0

dist/rollup-plugin-babel.cjs.js

@@ -18,6 +18,6 @@ 'use strict';
 var warned = {};
-function warnOnce ( msg ) {
-	if ( warned[ msg ] ) return;
+function warnOnce ( warn, msg ) {
+	if ( warned[ msg ] ) { return; }
 	warned[ msg ] = true;
-	console.warn( msg ); // eslint-disable-line no-console
+	warn( msg );
 }
@@ -38,2 +38,3 @@
 		options = assign( {}, options );
+		delete options.only;
 		options.filename = path.join( dir, 'x.js' );
@@ -45,7 +46,7 @@
 
-		if ( !~check.indexOf( 'export default' ) && !~check.indexOf( 'export { Foo as default }' ) ) throw new Error( 'It looks like your Babel configuration specifies a module transformer. Please disable it. If you\'re using the "es2015" preset, consider using "es2015-rollup" instead. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information' );
+		if ( !~check.indexOf( 'export default' ) && !~check.indexOf( 'export { Foo as default }' ) ) { throw new Error( 'It looks like your Babel configuration specifies a module transformer. Please disable it. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information' ); }
 
-		if ( ~check.indexOf( 'import _classCallCheck from "babel-runtime' ) ) helpers = RUNTIME;
-		else if ( ~check.indexOf( 'function _classCallCheck' ) ) helpers = INLINE;
-		else if ( ~check.indexOf( 'babelHelpers' ) ) helpers = BUNDLED;
+		if ( ~check.indexOf( 'import _classCallCheck from "babel-runtime' ) ) { helpers = RUNTIME; }
+		else if ( ~check.indexOf( 'function _classCallCheck' ) ) { helpers = INLINE; }
+		else if ( ~check.indexOf( 'babelHelpers' ) ) { helpers = BUNDLED; }
 
@@ -72,4 +73,4 @@ else {
 
-	if ( options.sourceMap !== false ) options.sourceMaps = true;
-	if ( options.sourceMaps !== false ) options.sourceMaps = true;
+	if ( options.sourceMap !== false ) { options.sourceMaps = true; }
+	if ( options.sourceMaps !== false ) { options.sourceMaps = true; }
 	delete options.sourceMap;
@@ -81,10 +82,20 @@
 	var externalHelpers;
-	if ( options.externalHelpers ) externalHelpers = true;
+	if ( options.externalHelpers ) { externalHelpers = true; }
 	delete options.externalHelpers;
 
+	var externalHelpersWhitelist = null;
+	if ( options.externalHelpersWhitelist ) { externalHelpersWhitelist = options.externalHelpersWhitelist; }
+	delete options.externalHelpersWhitelist;
+  
+	var warn = function (msg) { return console.warn(msg); }; // eslint-disable-line no-console
+  
 	return {
 		name: 'babel',
 
+		options: function options$1 ( options ) {
+			warn = options.onwarn || warn;
+		},
+
 		resolveId: function resolveId ( id ) {
-			if ( id === HELPERS ) return id;
+			if ( id === HELPERS ) { return id; }
 		},
@@ -96,3 +107,3 @@
 
-				var helpers = babelCore.buildExternalHelpers( null, 'var' )
+				var helpers = babelCore.buildExternalHelpers( externalHelpersWhitelist, 'var' )
 					.replace( pattern, 'var _$1' )
@@ -107,4 +118,4 @@ .replace( /^babelHelpers\./gm, 'export var ' ) +
 		transform: function transform$1 ( code, id ) {
-			if ( !filter( id ) ) return null;
-			if ( id === HELPERS ) return null;
+			if ( !filter( id ) ) { return null; }
+			if ( id === HELPERS ) { return null; }
 
@@ -120,3 +131,3 @@ var helpers = preflightCheck( options, path.dirname( id ) );
 				if ( helpers === BUNDLED ) {
-					if ( !externalHelpers ) transformed.code += "\n\nimport * as babelHelpers from '" + HELPERS + "';";
+					if ( !externalHelpers ) { transformed.code += "\n\nimport * as babelHelpers from '" + HELPERS + "';"; }
 				} else if ( helpers === RUNTIME && !runtimeHelpers ) {
@@ -127,3 +138,3 @@ throw new Error( 'Runtime helpers are not enabled. Either exclude the transform-runtime Babel plugin or pass the `runtimeHelpers: true` option. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information' );
 						if ( inlineHelpers[ helper ] ) {
-							warnOnce( ("The '" + helper + "' Babel helper is used more than once in your code. It's strongly recommended that you use the \"external-helpers\" plugin or the \"es2015-rollup\" preset. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information") );
+							warnOnce( warn, ("The '" + helper + "' Babel helper is used more than once in your code. It's strongly recommended that you use the \"external-helpers\" plugin or the \"es2015-rollup\" preset. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information") );
 						}
@@ -144,2 +155,3 @@
 
-module.exports = babel;
+module.exports = babel;
+//# sourceMappingURL=rollup-plugin-babel.cjs.js.map

package.json

 {
   "name": "rollup-plugin-babel",
-  "version": "2.6.1",
+  "version": "2.7.0",
   "description": "Seamless integration between Rollup and Babel.",
   "main": "dist/rollup-plugin-babel.cjs.js",
-  "jsnext:main": "dist/rollup-plugin-babel.es6.js",
+  "jsnext:main": "dist/rollup-plugin-babel.es.js",
   "files": [
     "src",
-    "dist",
+    "dist/rollup-plugin-babel.cjs.js",
+    "dist/rollup-plugin-babel.es.js",
     "README"
@@ -41,9 +42,10 @@ ],
     "babel-preset-es2015": "^6.9.0",
-    "babel-preset-es2015-rollup": "^1.1.1",
-    "buble": "^0.10.6",
-    "eslint": "^2.11.1",
-    "mocha": "^2.5.3",
-    "rollup": "^0.29.0",
-    "rollup-plugin-buble": "^0.10.0",
-    "source-map": "^0.5.6"
+    "babel-preset-es2015-rollup": "^3.0.0",
+    "buble": "^0.14.2",
+    "eslint": "^3.12.0",
+    "mocha": "^3.2.0",
+    "rollup": "^0.37.0",
+    "rollup-plugin-buble": "^0.14.0",
+    "source-map": "^0.5.6",
+    "source-map-support": "^0.4.6"
   },
@@ -50,0 +52,0 @@ "repository": {

README.md

@@ -42,4 +42,8 @@ # rollup-plugin-babel
 
-All options are as per the [Babel documentation](https://babeljs.io/), except `options.externalHelpers` (a boolean value indicating whether to bundle in the babel helpers), `options.include` and `options.exclude` (each a minimatch pattern, or array of minimatch patterns), which determine which files are transpiled by Babel (by default, all files are transpiled).
+All options are as per the [Babel documentation](https://babeljs.io/), except the following:
 
+   * `options.externalHelpers`: a boolean value indicating whether to bundle in the babel helpers
+   * `options.include` and `options.exclude`: each a minimatch pattern, or array of minimatch patterns, which determine which files are transpiled by Babel (by default, all files are transpiled)
+   * `options.externalHelpersWhitelist`: an array which gives explicit control over which babelHelper functions are allowed in the bundle (by default, every helper is allowed)
+
 Babel will respect `.babelrc` files – this is generally the best place to put your configuration.
@@ -60,6 +64,4 @@
 
-tl;dr: use the `es2015-rollup` preset instead of `es2015`.
-
 ```bash
-npm install --save-dev babel-preset-es2015-rollup
+npm install --save-dev babel-preset-es2015 babel-plugin-external-helpers
 ```
@@ -70,3 +72,13 @@
 {
-  "presets": [ "es2015-rollup" ]
+  "presets": [
+    [
+      "es2015",
+      {
+        "modules": false
+      }
+    ]
+  ],
+  "plugins": [
+    "external-helpers"
+  ]
 }
@@ -77,3 +89,3 @@ ```
 
-The `es2015` preset includes the [transform-es2015-modules-commonjs](http://babeljs.io/docs/plugins/transform-es2015-modules-commonjs/) plugin, which converts ES6 modules to CommonJS – preventing Rollup from working. Instead, you should either use the `es2015-rollup` preset, which excludes that plugin, or otherwise ensure that the `modules-commonjs` plugin is excluded. Rollup will throw an error if this is incorrectly configured.
+The `es2015` preset includes the [transform-es2015-modules-commonjs](http://babeljs.io/docs/plugins/transform-es2015-modules-commonjs/) plugin, which converts ES6 modules to CommonJS – preventing Rollup from working. Since Babel 6.3 it's possible to deactivate module transformation with `"modules": false`. So there is no need to use the old workaround with `babel-preset-es2015-rollup`, that work for Babel <6.13. Rollup will throw an error if this is incorrectly configured.
 
@@ -104,3 +116,3 @@ ### Helpers
     babel({
-      plugins: ['external-helpers-2'],
+      plugins: ['external-helpers'],
       externalHelpers: true
@@ -107,0 +119,0 @@ })

src/index.js

@@ -29,5 +29,15 @@ import { dirname } from 'path';
 
+	let externalHelpersWhitelist = null;
+	if ( options.externalHelpersWhitelist ) externalHelpersWhitelist = options.externalHelpersWhitelist;
+	delete options.externalHelpersWhitelist;
+  
+	let warn = msg => console.warn(msg); // eslint-disable-line no-console
+  
 	return {
 		name: 'babel',
 
+		options ( options ) {
+			warn = options.onwarn || warn;
+		},
+
 		resolveId ( id ) {
@@ -41,3 +51,3 @@ if ( id === HELPERS ) return id;
 
-				const helpers = buildExternalHelpers( null, 'var' )
+				const helpers = buildExternalHelpers( externalHelpersWhitelist, 'var' )
 					.replace( pattern, 'var _$1' )
@@ -69,3 +79,3 @@ .replace( /^babelHelpers\./gm, 'export var ' ) +
 						if ( inlineHelpers[ helper ] ) {
-							warnOnce( `The '${helper}' Babel helper is used more than once in your code. It's strongly recommended that you use the "external-helpers" plugin or the "es2015-rollup" preset. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information` );
+							warnOnce( warn, `The '${helper}' Babel helper is used more than once in your code. It's strongly recommended that you use the "external-helpers" plugin or the "es2015-rollup" preset. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information` );
 						}
@@ -72,0 +82,0 @@

src/preflightCheck.js

@@ -14,2 +14,3 @@ import { join } from 'path';
 		options = assign( {}, options );
+		delete options.only;
 		options.filename = join( dir, 'x.js' );
@@ -21,3 +22,3 @@
 
-		if ( !~check.indexOf( 'export default' ) && !~check.indexOf( 'export { Foo as default }' ) ) throw new Error( 'It looks like your Babel configuration specifies a module transformer. Please disable it. If you\'re using the "es2015" preset, consider using "es2015-rollup" instead. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information' );
+		if ( !~check.indexOf( 'export default' ) && !~check.indexOf( 'export { Foo as default }' ) ) throw new Error( 'It looks like your Babel configuration specifies a module transformer. Please disable it. See https://github.com/rollup/rollup-plugin-babel#configuring-babel for more information' );
 
@@ -24,0 +25,0 @@ if ( ~check.indexOf( 'import _classCallCheck from "babel-runtime' ) ) helpers = RUNTIME;

src/utils.js

@@ -9,6 +9,6 @@ export function assign ( target, source ) {
 let warned = {};
-export function warnOnce ( msg ) {
+export function warnOnce ( warn, msg ) {
 	if ( warned[ msg ] ) return;
 	warned[ msg ] = true;
-	console.warn( msg ); // eslint-disable-line no-console
+	warn( msg );
 }

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Improved metrics

Total package byte prevSize

24687

increased by8.03%

Lines of code

332

increased by8.85%

Number of lines in readme file

122

increased by10.91%

Worsened metrics

Dev dependency count

11

increased by10%

No dependency changes