perf: use thread for preprocessors (#13584)

Author: sapphi-red

docs/config/shared-options.md

@@ -222,17 +222,12 @@ Specify options to pass to CSS pre-processors. The file extensions are used as k
 - `less` - [Options](https://lesscss.org/usage/#less-options).
 - `styl`/`stylus` - Only [`define`](https://stylus-lang.com/docs/js.html#define-name-node) is supported, which can be passed as an object.
 
-All preprocessor options also support the `additionalData` option, which can be used to inject extra code for each style content. Note that if you include actual styles and not just variables, those styles will be duplicated in the final bundle.
-
-Example:
+**Example:**
 
 ```js
 export default defineConfig({
   css: {
     preprocessorOptions: {
-      scss: {
-        additionalData: `$injectedColor: orange;`,
-      },
       less: {
         math: 'parens-division',
       },
@@ -246,6 +241,34 @@ export default defineConfig({
 })
 ```
 
+### css.preprocessorOptions[extension].additionalData
+
+- **Type:** `string | ((source: string, filename: string) => (string | { content: string; map?: SourceMap }))`
+
+This option can be used to inject extra code for each style content. Note that if you include actual styles and not just variables, those styles will be duplicated in the final bundle.
+
+**Example:**
+
+```js
+export default defineConfig({
+  css: {
+    preprocessorOptions: {
+      scss: {
+        additionalData: `$injectedColor: orange;`,
+      },
+    },
+  },
+})
+```
+
+## css.preprocessorMaxWorkers
+
+- **Experimental:** [Give Feedback](TODO: update)
+- **Type:** `number | true`
+- **Default:** `0` (does not create any workers and run in the main thread)
+
+If this option is set, CSS preprocessors will run in workers when possible. `true` means the number of CPUs minus 1.
+
 ## css.devSourcemap
 
 - **Experimental:** [Give Feedback](https://github.com/vitejs/vite/discussions/13845)

packages/vite/LICENSE.md

@@ -679,6 +679,36 @@ Repository: https://github.com/micromatch/anymatch
 
 ---------------------------------------
 
+## artichokie
+License: MIT
+By: sapphi-red, Evan You
+Repository: git+https://github.com/sapphi-red/artichokie.git
+
+> MIT License
+> 
+> Copyright (c) 2020-present, Yuxi (Evan) You
+> Copyright (c) 2023-present, sapphi-red
+> 
+> Permission is hereby granted, free of charge, to any person obtaining a copy
+> of this software and associated documentation files (the "Software"), to deal
+> in the Software without restriction, including without limitation the rights
+> to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+> copies of the Software, and to permit persons to whom the Software is
+> furnished to do so, subject to the following conditions:
+> 
+> The above copyright notice and this permission notice shall be included in all
+> copies or substantial portions of the Software.
+> 
+> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+> IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+> FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+> AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+> LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+> OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+> SOFTWARE.
+
+---------------------------------------
+
 ## astring
 License: MIT
 By: David Bonnet
@@ -2312,35 +2342,6 @@ Repository: sindresorhus/object-assign
 
 ---------------------------------------
 
-## okie
-License: MIT
-By: Evan You
-Repository: git+https://github.com/yyx990803/okie.git
-
-> MIT License
-> 
-> Copyright (c) 2020-present, Yuxi (Evan) You
-> 
-> Permission is hereby granted, free of charge, to any person obtaining a copy
-> of this software and associated documentation files (the "Software"), to deal
-> in the Software without restriction, including without limitation the rights
-> to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-> copies of the Software, and to permit persons to whom the Software is
-> furnished to do so, subject to the following conditions:
-> 
-> The above copyright notice and this permission notice shall be included in all
-> copies or substantial portions of the Software.
-> 
-> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-> IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-> FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-> AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-> LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-> OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
-> SOFTWARE.
-
----------------------------------------
-
 ## on-finished
 License: MIT
 By: Douglas Christopher Wilson, Jonathan Ong

packages/vite/package.json

@@ -96,6 +96,7 @@
     "@types/pnpapi": "^0.0.5",
     "acorn": "^8.11.3",
     "acorn-walk": "^8.3.2",
+    "artichokie": "^0.2.0",
     "cac": "^6.7.14",
     "chokidar": "^3.5.3",
     "connect": "^3.7.0",
@@ -118,7 +119,6 @@
     "micromatch": "^4.0.5",
     "mlly": "^1.5.0",
     "mrmime": "^2.0.0",
-    "okie": "^1.0.1",
     "open": "^8.4.2",
     "parse5": "^7.1.2",
     "periscopic": "^4.0.2",