feat: add css chunking plugin demo (#306)

SyMind · web-flow · commit 60ec31917019 · 2025-06-24T18:31:07.000+08:00
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
diff --git a/rspack/css-chunking-plugin/index.html b/rspack/css-chunking-plugin/index.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta http-equiv="X-UA-Compatible" content="IE=edge" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Document</title>
+  </head>
+  <body>
+    <div id="root"></div>
+  </body>
+</html>
diff --git a/rspack/css-chunking-plugin/package.json b/rspack/css-chunking-plugin/package.json
@@ -0,0 +1,15 @@
+{
+  "name": "example-css-chunking-plugin",
+  "version": "1.0.0",
+  "private": true,
+  "license": "MIT",
+  "main": "index.js",
+  "scripts": {
+    "build": "rspack build",
+    "dev": "rspack serve"
+  },
+  "devDependencies": {
+    "@rspack/cli": "1.4.0-rc.0",
+    "@rspack/core": "1.4.0-rc.0"
+  }
+}
diff --git a/rspack/css-chunking-plugin/rspack.config.js b/rspack/css-chunking-plugin/rspack.config.js
@@ -0,0 +1,27 @@
+const { rspack } = require('@rspack/core');
+
+/** @type {import('@rspack/cli').Configuration} */
+const config = {
+  entry: './src/index.js',
+  plugins: [
+    new rspack.HtmlRspackPlugin({
+      template: './index.html',
+    }),
+    // Without using CssChunkingPlugin, the current splitChunks configuration will split CSS modules into multiple chunks, causing CSS style errors
+    new rspack.experiments.CssChunkingPlugin({
+        // options
+    }),
+  ],
+  experiments: {
+    css: true,
+  },
+  optimization: {
+    minimize: false,
+    splitChunks: {
+        maxSize: 100,
+        minSize: 0,
+    }
+  }
+};
+
+module.exports = config;
diff --git a/rspack/css-chunking-plugin/src/index.js b/rspack/css-chunking-plugin/src/index.js
@@ -0,0 +1 @@
+import("./page");
diff --git a/rspack/css-chunking-plugin/src/page.js b/rspack/css-chunking-plugin/src/page.js
@@ -0,0 +1,11 @@
+import "./styles/global.css";
+import "./styles/theme.css";
+import "./styles/component.css";
+
+document.addEventListener
+const button = document.createElement('button');
+button.className = 'btn';
+button.style.width = '200px';
+button.style.height = '50px';
+button.textContent = 'background should be black';
+document.body.appendChild(button);
diff --git a/rspack/css-chunking-plugin/src/styles/component.css b/rspack/css-chunking-plugin/src/styles/component.css
@@ -0,0 +1,3 @@
+.btn {
+    background-color: black;
+}
diff --git a/rspack/css-chunking-plugin/src/styles/global.css b/rspack/css-chunking-plugin/src/styles/global.css
@@ -0,0 +1,4 @@
+.btn {
+    background-color: red;
+    color: white;
+}
diff --git a/rspack/css-chunking-plugin/src/styles/theme.css b/rspack/css-chunking-plugin/src/styles/theme.css
@@ -0,0 +1,3 @@
+.btn {
+    background-color: blue;
+}

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+.btn {`
	`2`	`+ background-color: black;`
	`3`	`+}`
-Original file line number
+Diff line change
@@ @@ -0,0 +1,4 @@ @@
 +.btn {
 +    background-color: red;
 +    color: white;
 +}
Original file line number	Diff line number	Diff line change
`@@ -0,0 +1,3 @@`
	`1`	`+.btn {`
	`2`	`+ background-color: blue;`
	`3`	`+}`