refactor: rename the onlyLocals option (#1116)

BREAKING CHANGE: the `onlyLocals` option was renamed to the `exportOnlyLocals` option and moved to the `module` option

Author: evilebottnawi

README.md

@@ -116,7 +116,6 @@ module.exports = {
 |       **[`modules`](#modules)**       | `{Boolean\|String\|Object}` |      `false`       | Enables/Disables CSS Modules and their configuration                   |
 |     **[`sourceMap`](#sourcemap)**     |         `{Boolean}`         | `compiler.devtool` | Enables/Disables generation of source maps                             |
 | **[`importLoaders`](#importloaders)** |         `{Number}`          |        `0`         | Enables/Disables or setups number of loaders applied before CSS loader |
-|    **[`onlyLocals`](#onlylocals)**    |         `{Boolean}`         |      `false`       | Export only locals                                                     |
 |      **[`esModule`](#esmodule)**      |         `{Boolean}`         |      `false`       | Use ES modules syntax                                                  |
 
 ### `url`
@@ -535,6 +534,7 @@ module.exports = {
             context: path.resolve(__dirname, 'src'),
             hashPrefix: 'my-custom-hash',
             namedExport: true,
+            exportOnlyLocals: false,
           },
         },
       },
@@ -968,6 +968,37 @@ module.exports = {
 };
 ```
 
+### `exportOnlyLocals`
+
+Type: `Boolean`
+Default: `false`
+
+Export only locals.
+
+**Useful** when you use **css modules** for pre-rendering (for example SSR).
+For pre-rendering with `mini-css-extract-plugin` you should use this option instead of `style-loader!css-loader` **in the pre-rendering bundle**.
+It doesn't embed CSS but only exports the identifier mappings.
+
+**webpack.config.js**
+
+```js
+module.exports = {
+  module: {
+    rules: [
+      {
+        test: /\.css$/i,
+        loader: 'css-loader',
+        options: {
+          modules: {
+            exportOnlyLocals: true,
+          },
+        },
+      },
+    ],
+  },
+};
+```
+
 ### `sourceMap`
 
 Type: `Boolean`
@@ -1032,35 +1063,6 @@ module.exports = {
 
 This may change in the future when the module system (i. e. webpack) supports loader matching by origin.
 
-### `onlyLocals`
-
-Type: `Boolean`
-Default: `false`
-
-Export only locals.
-
-**Useful** when you use **css modules** for pre-rendering (for example SSR).
-For pre-rendering with `mini-css-extract-plugin` you should use this option instead of `style-loader!css-loader` **in the pre-rendering bundle**.
-It doesn't embed CSS but only exports the identifier mappings.
-
-**webpack.config.js**
-
-```js
-module.exports = {
-  module: {
-    rules: [
-      {
-        test: /\.css$/i,
-        loader: 'css-loader',
-        options: {
-          onlyLocals: true,
-        },
-      },
-    ],
-  },
-};
-```
-
 ### `esModule`
 
 Type: `Boolean`

src/options.json

@@ -104,6 +104,10 @@
             "namedExport": {
               "description": "Use the named export ES modules.",
               "type": "boolean"
+            },
+            "exportOnlyLocals": {
+              "description": "Export only locals (https://github.com/webpack-contrib/css-loader#exportonlylocals).",
+              "type": "boolean"
             }
           }
         }
@@ -124,10 +128,6 @@
         }
       ]
     },
-    "onlyLocals": {
-      "description": "Export only locals (https://github.com/webpack-contrib/css-loader#onlylocals).",
-      "type": "boolean"
-    },
     "esModule": {
       "description": "Use the ES modules syntax (https://github.com/webpack-contrib/css-loader#esmodule).",
       "type": "boolean"

src/utils.js

@@ -123,6 +123,7 @@ function getModulesOptions(rawOptions, loaderContext) {
     hashPrefix: '',
     exportGlobals: false,
     namedExport: false,
+    exportOnlyLocals: false,
   };
 
   if (
@@ -183,17 +184,13 @@ function normalizeOptions(rawOptions, loaderContext) {
         ? rawOptions.sourceMap
         : loaderContext.sourceMap,
     importLoaders: rawOptions.importLoaders,
-    onlyLocals:
-      typeof rawOptions.onlyLocals !== 'undefined'
-        ? rawOptions.onlyLocals
-        : false,
     esModule:
       typeof rawOptions.esModule === 'undefined' ? true : rawOptions.esModule,
   };
 }
 
 function shouldUseImportPlugin(options) {
-  if (options.onlyLocals) {
+  if (options.modules.exportOnlyLocals) {
     return false;
   }
 
@@ -205,7 +202,7 @@ function shouldUseImportPlugin(options) {
 }
 
 function shouldUseURLPlugin(options) {
-  if (options.onlyLocals) {
+  if (options.modules.exportOnlyLocals) {
     return false;
   }
 
@@ -326,7 +323,7 @@ function getPreRequester({ loaders, loaderIndex }) {
 function getImportCode(loaderContext, imports, options) {
   let code = '';
 
-  if (options.onlyLocals !== true) {
+  if (options.modules.exportOnlyLocals !== true) {
     const apiUrl = stringifyRequest(
       loaderContext,
       require.resolve('./runtime/api')
@@ -357,7 +354,7 @@ function getModuleCode(
   icssReplacements,
   options
 ) {
-  if (options.onlyLocals === true) {
+  if (options.modules.exportOnlyLocals === true) {
     return 'var ___CSS_LOADER_EXPORT___ = {};\n';
   }