feat: allow to use with Rspack (#18)

Author: chenjiahan

README.md

@@ -31,6 +31,8 @@ export default {
 };
 ```
 
+This plugin is compatible with both Rsbuild and Rspack. If you are using Rspack instead of Rsbuild, you can import the `ImageMinimizerPlugin` from the package, see [Rspack Usage](#rspack-usage).
+
 ## Default Compressors
 
 By default, the plugin will enable `jpeg`, `png`, `ico` image compressors, which are equivalent to the following two examples:
@@ -98,6 +100,52 @@ For example, the `png` compressor will take precedence over the `pngLossless` co
 pluginImageCompress(["jpeg", "pngLossless", "ico", "png"]);
 ```
 
+## Rspack Usage
+
+The plugin is also compatible with Rspack.
+
+If you are using Rspack instead of Rsbuild, you can import the `ImageMinimizerPlugin` from the package, use it in the [optimization.minimizer](https://rspack.dev/config/optimization#optimizationminimizer) array.
+
+```ts
+// rspack.config.mjs
+import { ImageMinimizerPlugin } from "@rsbuild/plugin-image-compress";
+import { defineConfig } from "@rspack/cli";
+
+export default defineConfig({
+  mode: process.env.NODE_ENV === "production" ? "production" : "development",
+  optimization: {
+    minimizer: [
+      // Use `...` to preserve the default JS and CSS minimizers of Rspack
+      '...',
+      // Add the image minimizer plugins
+      new ImageMinimizerPlugin({
+        use: "jpeg",
+        test: /\.(?:jpg|jpeg)$/,
+      }),
+      new ImageMinimizerPlugin({
+        use: "png",
+        test: /\.png$/,
+        maxQuality: 50,
+      }),
+      new ImageMinimizerPlugin({
+        use: "avif",
+        test: /\.avif$/,
+        quality: 80,
+      }),
+      new ImageMinimizerPlugin({
+        use: "svg",
+        test: /\.svg$/,
+        floatPrecision: 2,
+      }),
+      new ImageMinimizerPlugin({
+        use: "ico",
+        test: /\.(?:ico|icon)$/,
+      }),
+    ],
+  },
+});
+```
+
 ## License
 
 [MIT](./LICENSE).

src/index.ts

@@ -35,6 +35,8 @@ const normalizeOptions = (options: Options[]) => {
 
 export const PLUGIN_IMAGE_COMPRESS_NAME = 'rsbuild:image-compress';
 
+export { ImageMinimizerPlugin };
+
 /** Options enable by default: {@link DEFAULT_OPTIONS} */
 export const pluginImageCompress: IPluginImageCompress = (
   ...args