feat: move all preset-env options under single directive

This gives more control on how the react preset will pass in options
to base.

Author: swashata

packages/babel-preset-base/README.md

@@ -81,7 +81,9 @@ module.exports = {
 		'@wpw/base',
 		{
 			noDynamicImport: true, // disable @babel/plugin-syntax-dynamic-import
-			target: 'not dead, > 0.25%', // browserslist query to pass to @babel/preset-env
+			presetEnv: {
+				target: 'not dead, > 0.25%', // browserslist query to pass to @babel/preset-env
+			},
 		},
 	],
 };
@@ -111,10 +113,10 @@ Set to `true` to disable [`@babel/plugin-proposal-class-properties`](https://bab
 
 Set to `true` to disable [`@babel/plugin-proposal-json-strings`](https://babeljs.io/docs/en/babel-plugin-proposal-json-strings).
 
-#### Options for `@babel/preset-env`
+#### `presetEnv` Options for `@babel/preset-env`
 
-What-ever else you pass to the config, is passed directly to `@babel/preset-env`. This
-gives you more control on how to configure the most stable `env` preset.
+What-ever you pass to the `presetEnv` directive, is passed directly to `@babel/preset-env`. This
+gives you more control on how to configure the `@babel/preset-env` preset.
 
 Please [read the documentation](https://babeljs.io/docs/en/babel-preset-env) for
 available options.

packages/babel-preset-base/package.json

@@ -3,7 +3,11 @@
   "version": "0.0.1",
   "description": "Babel preset for @wps/scripts, without react specific transforms.",
   "keywords": [
-    "wordpress", "bundler", "webpack", "browser-sync", "wordpress-bundler"
+    "wordpress",
+    "bundler",
+    "webpack",
+    "browser-sync",
+    "wordpress-bundler"
   ],
   "main": "lib/index.js",
   "repository": "https://github.com/swashata/wp-webpack-script",
@@ -19,6 +23,9 @@
     "@babel/plugin-syntax-import-meta": "^7.0.0",
     "@babel/preset-env": "^7.1.0"
   },
+  "peerDependencies": {
+    "@babel/core": "^7.0.0-0"
+  },
   "engines": {
     "node": ">=8.9.0"
   },
@@ -32,5 +39,8 @@
   },
   "publishConfig": {
     "access": "public"
+  },
+  "devDependencies": {
+    "@babel/core": "^7.1.0"
   }
 }

packages/babel-preset-base/src/__tests__/preset.spec.js

@@ -12,11 +12,13 @@ describe('@wpw/babel-preset-base/preset', () => {
 		expect(typeof configWithNull).toBe('object');
 	});
 
-	test('passes all options to @babel/preset-env', () => {
+	test('passes all options from presetEnv to @babel/preset-env', () => {
 		const envOptions = {
-			targets: 'not-dead, > 25%',
-			modules: 'umd',
-			debug: true,
+			presetEnv: {
+				targets: 'not-dead, > 25%',
+				modules: 'umd',
+				debug: true,
+			},
 		};
 		const config = preset(envOptions);
 		expect(config).toHaveProperty('presets');
@@ -26,8 +28,8 @@ describe('@wpw/babel-preset-base/preset', () => {
 			p => Array.isArray(p) && p[0] === '@babel/preset-env'
 		);
 		expect(presetEnv).toHaveLength(2);
-		Object.keys(envOptions).forEach(key => {
-			expect(presetEnv[1][key]).toBe(envOptions[key]);
+		Object.keys(envOptions.presetEnv).forEach(key => {
+			expect(presetEnv[1][key]).toBe(envOptions.presetEnv[key]);
 		});
 	});
 

packages/babel-preset-base/src/preset.js

@@ -5,11 +5,11 @@ export default (opts = {}) => {
 		noImportMeta = false,
 		noClassProperties = false,
 		noJsonStrings = false,
-		...envOptions
+		presetEnv = {},
 	} = opts || {};
 
 	// Create the presets
-	const presets = [['@babel/preset-env', { ...envOptions }]];
+	const presets = [['@babel/preset-env', { ...presetEnv }]];
 
 	// Create the plugins
 	const plugins = [];