From ca88f622d1a0c5bba33feea38a86720f61cd0f97 Mon Sep 17 00:00:00 2001
From: Valentin Silyutin <i@valentinsilyutin.com>
Date: Wed, 21 Jan 2026 15:13:48 +0400
Subject: [PATCH] @advdominion/lightningcss-loader

---
 packages/lightningcss-loader/README.md    | 53 +++++++++++++++++++++++
 packages/lightningcss-loader/index.js     | 22 ++++++++++
 packages/lightningcss-loader/package.json | 14 ++++++
 yarn.lock                                 |  6 +++
 4 files changed, 95 insertions(+)
 create mode 100644 packages/lightningcss-loader/README.md
 create mode 100644 packages/lightningcss-loader/index.js
 create mode 100644 packages/lightningcss-loader/package.json

diff --git a/packages/lightningcss-loader/README.md b/packages/lightningcss-loader/README.md
new file mode 100644
index 0000000..4232dce
--- /dev/null
+++ b/packages/lightningcss-loader/README.md
@@ -0,0 +1,53 @@
+# lightningcss-loader
+
+[Lightning CSS](https://lightningcss.dev) loader for [Webpack](https://webpack.js.org)
+
+## Usage
+
+```js
+import { transform } from 'lightningcss';
+
+return {
+    ...,
+    rules: [
+        {
+            test: /\.css$/,
+            use: [
+                {
+                    loader: '@advdominion/lightningcss-loader',
+                    options: {
+                        implementation: transform,
+                    },
+                },
+            ],
+        },
+    ],
+};
+```
+
+### Passing options to Lightning CSS
+
+```js
+import { transform } from 'lightningcss';
+
+return {
+    ...,
+    rules: [
+        {
+            test: /\.css$/,
+            use: [
+                {
+                    loader: '@advdominion/lightningcss-loader',
+                    options: {
+                        implementation: transform,
+                        drafts: {
+                            customMedia: true,
+                        },
+                        minify: false,
+                    },
+                },
+            ],
+        },
+    ],
+};
+```
diff --git a/packages/lightningcss-loader/index.js b/packages/lightningcss-loader/index.js
new file mode 100644
index 0000000..e904148
--- /dev/null
+++ b/packages/lightningcss-loader/index.js
@@ -0,0 +1,22 @@
+const lightningcssLoader = (source, sourceMap) => {
+    const { implementation, ...options } = this.getOptions();
+    const callback = this.async();
+
+    if (typeof implementation !== 'function') {
+        throw new TypeError(
+            `[lightningcss-loader]: The "implementation" option is required and must provide "transform" function of the LightningCSS`,
+        );
+    }
+
+    const { code, map } = implementation({
+        filename: this.resourcePath,
+        code: Buffer.from(source),
+        sourceMap: this.sourceMap,
+        inputSourceMap: this.sourceMap && sourceMap ? JSON.stringify(sourceMap) : undefined,
+        ...options,
+    });
+
+    callback(undefined, code.toString(), map && JSON.parse(map.toString()));
+}
+
+export default lightningcssLoader;
diff --git a/packages/lightningcss-loader/package.json b/packages/lightningcss-loader/package.json
new file mode 100644
index 0000000..4f80465
--- /dev/null
+++ b/packages/lightningcss-loader/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "@advdominion/lightningcss-loader",
+  "version": "1.0.0",
+  "type": "module",
+  "main": "index.js",
+  "repository": {
+    "type": "git",
+    "url": "https://gitea.optiweb.ru/public/frontend.git"
+  },
+  "license": "MIT",
+  "publishConfig": {
+    "access": "public"
+  }
+}
diff --git a/yarn.lock b/yarn.lock
index fbe9db7..e7d313b 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -43,6 +43,12 @@ __metadata:
   languageName: unknown
   linkType: soft
 
+"@advdominion/lightningcss-loader@workspace:packages/lightningcss-loader":
+  version: 0.0.0-use.local
+  resolution: "@advdominion/lightningcss-loader@workspace:packages/lightningcss-loader"
+  languageName: unknown
+  linkType: soft
+
 "@advdominion/pluralize@workspace:packages/pluralize":
   version: 0.0.0-use.local
   resolution: "@advdominion/pluralize@workspace:packages/pluralize"