Return envs

.github/CHANGELOG.md

@@ -1,3 +1,9 @@
+4.0.0
+=====
+
+*   Return environments (`legacy` and `modern`) instead of a single config.
+
+
 3.0.1
 =====
 

.github/UPGRADE.md

@@ -1,3 +1,9 @@
+3.x to 4.0
+==========
+
+*   Removed default export and instead return to environments: `legacy` and `modern`.
+
+
 2.x to 3.0
 ==========
 

index.js

@@ -1,20 +1,34 @@
-module.exports = {
-    plugins: [
-        // ------------------------------------------------------------------------------------------
-        // Stage 3 proposals
-        // ------------------------------------------------------------------------------------------
-        ["@babel/plugin-syntax-dynamic-import"],
-        ["@babel/plugin-proposal-json-strings"],
+const browserslistConfigs = require("@becklyn/browserslist-config/envs");
+
+/**
+ * Builds the config for a given browser list
+ */
+function buildConfig (browserslistConfig)
+{
+    return {
+        plugins: [
+            // ------------------------------------------------------------------------------------------
+            // Stage 3 proposals
+            // ------------------------------------------------------------------------------------------
+            ["@babel/plugin-syntax-dynamic-import"],
+            ["@babel/plugin-proposal-json-strings"],
 
-        // set with loose: true, as the compilation is pretty big
-        // https://babeljs.io/docs/plugins/transform-class-properties/
-        ["@babel/plugin-proposal-class-properties", {loose: true}],
+            // set with loose: true, as the compilation is pretty big
+            // https://babeljs.io/docs/plugins/transform-class-properties/
+            ["@babel/plugin-proposal-class-properties", {loose: true}],
 
-        // default env
-        ["@babel/preset-env", {
-            spec: false,
-            useBuiltIns: "entry",
-            corejs: 3,
-        }],
-    ]
+            // default env
+            ["@babel/preset-env", {
+                spec: false,
+                useBuiltIns: "entry",
+                corejs: 3,
+                targets: browserslistConfig,
+            }],
+        ],
+    };
+}
+
+module.exports = {
+    modern: buildConfig(browserslistConfigs.modern),
+    legacy: buildConfig(browserslistConfigs.legacy),
 };

package.json

@@ -13,6 +13,7 @@
         "@babel/plugin-proposal-class-properties": "^7.4.4",
         "@babel/plugin-proposal-json-strings": "^7.2.0",
         "@babel/plugin-syntax-dynamic-import": "^7.2.0",
-        "@babel/preset-env": "^7.4.5"
+        "@babel/preset-env": "^7.4.5",
+        "@becklyn/browserslist-config": "^2.1.0"
     }
 }