feat(plugin): add setup to rspack plugin

packages/plugin/rspack/README.md

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+## plugin-rspack
+
+This plugin makes it easy to set up standard webpack tooling to compile both your main process code and your renderer process code, with built-in support for Hot Module Replacement (HMR) in the renderer process and support for multiple renderers.
+
+```javascript
+// forge.config.js
+
+module.exports = {
+  plugins: [
+    {
+      name: '@electron-forge/plugin-rspack',
+      config: {
+        mainConfig: './rspack.main.config.js',
+        renderer: {
+          config: './rspack.renderer.config.js',
+          entryPoints: [{
+            name: 'main_window',
+            html: './src/renderer/index.html',
+            js: './src/renderer/index.js',
+            preload: {
+              js: './src/preload.js'
+            }
+          }]
+        }
+      }
+    }
+  ]
+};
+```

packages/plugin/rspack/package.json

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+{
+  "name": "@electron-forge/plugin-rspack",
+  "version": "7.2.0",
+  "description": "Rspack plugin for Electron Forge, lets you use Rspack directly in your tooling",
+  "repository": "https://github.com/electron/forge",
+  "author": "noghartt",
+  "license": "MIT",
+  "main": "dist/RspackPlugin.js",
+  "typings": "dist/RspackPlugin.d.ts",
+  "scripts": {
+    "test": "xvfb-maybe mocha --config ../../../.mocharc.js test/**/*_spec.ts test/*_spec.ts"
+  },
+  "engines": {
+    "node": ">= 16.4.0"
+  },
+  "devDependencies": {
+    "@electron/packager": "^18.1.2",
+    "@malept/cross-spawn-promise": "^2.0.0",
+    "@types/node": "^18.0.3",
+    "chai": "^4.3.3",
+    "mocha": "^9.0.1",
+    "sinon": "^13.0.1",
+    "which": "^2.0.2",
+    "xvfb-maybe": "^0.2.1"
+  },
+  "dependencies": {
+    "@electron-forge/core-utils": "7.2.0",
+    "@electron-forge/plugin-base": "7.2.0",
+    "@electron-forge/shared-types": "7.2.0",
+    "@electron-forge/web-multi-logger": "7.2.0",
+    "@rspack/cli": "0.4.4",
+    "@rspack/core": "0.4.4",
+    "@rspack/dev-server": "0.4.4",
+    "chalk": "^4.0.0",
+    "debug": "^4.3.1",
+    "fast-glob": "^3.2.7",
+    "fs-extra": "^10.0.0",
+    "html-webpack-plugin": "^5.5.3",
+    "webpack": "^5.69.1",
+    "webpack-merge": "^5.7.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "files": [
+    "dist",
+    "src"
+  ]
+}

packages/plugin/rspack/src/Config.ts

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+import { Configuration as RawRspackConfiguration } from '@rspack/core';
+import { Configuration as RspackDevServerConfiguration } from '@rspack/dev-server';
+
+export type RspackConfigurationFactory = (
+  env: string | Record<string, string | boolean | number> | unknown,
+  args: Record<string, unknown>
+) => RspackConfiguration | Promise<RspackConfiguration>;
+
+export type RspackConfiguration = RawRspackConfiguration | RspackConfigurationFactory;
+
+export interface RspackPreloadEntryPoint {
+  /**
+   * Relative or absolute path to the preload JS file.
+   */
+  js: string;
+  /**
+   * Additional entries to put in the array of entries for this preload script,
+   * useful if you need to set up things like error reporting as separate
+   * entry files into your application.
+   */
+  prefixedEntries?: string[];
+  /**
+   * The optional webpack config for your preload process.
+   * Defaults to the renderer webpack config if blank.
+   */
+  config?: RspackConfiguration | string;
+}
+
+export interface RspackPluginEntryPointBase {
+  /**
+   * Human friendly name of your entry point
+   */
+  name: string;
+  /**
+   * Additional entries to put in the array of entries for this entry point,
+   * useful if you need to set up things like error reporting as separate
+   * entry files into your application.
+   */
+  prefixedEntries?: string[];
+  /**
+   * Additional chunks to include in the outputted HTML file. Use this if you
+   * set up some custom chunking (e.g. using SplitChunksPlugin).
+   */
+  additionalChunks?: string[];
+  /**
+   * Override the webpack config for this renderer based on whether `nodeIntegration` for
+   * the `BrowserWindow` is enabled. For webpack's `target` option:
+   *
+   * * When `nodeIntegration` is true, the `target` is `electron-renderer`.
+   * * When `nodeIntegration` is false, the `target` is `web`.
+   *
+   * Unfortunately, we cannot derive the value from the main process code as it can be
+   * dynamically generated at run-time, and webpack processes at build-time.
+   *
+   * Defaults to `false` (as it is disabled by default in Electron \>= 5) or the value set
+   * for all entries.
+   */
+  nodeIntegration?: boolean;
+}
+
+export interface RspackPluginEntryPointLocalWindow extends RspackPluginEntryPointBase {
+  /**
+   * Relative or absolute path to the HTML template file for this entry point.
+   */
+  html: string;
+  /**
+   * Relative or absolute path to the main JS file for this entry point.
+   */
+  js: string;
+  /**
+   * Information about the preload script for this entry point. If you don't use
+   * preload scripts, you don't need to set this.
+   */
+  preload?: RspackPreloadEntryPoint;
+}
+
+export interface RspackPluginEntryPointPreloadOnly extends RspackPluginEntryPointBase {
+  /**
+   * Information about the preload script for this entry point.
+   */
+  preload: RspackPluginEntryPoint;
+}
+
+export interface RspackPluginEntryPointNoWindow extends RspackPluginEntryPointBase {
+  /**
+   * Relative or absolute path to the main JS file for this entry point.
+   */
+  js: string;
+}
+
+export type RspackPluginEntryPoint = RspackPluginEntryPointLocalWindow | RspackPluginEntryPointNoWindow | RspackPluginEntryPointPreloadOnly;
+
+export interface RspackPluginConfig {
+  /**
+   * The webpack config for your main process
+   */
+  mainConfig: RspackConfiguration | string;
+  renderer: RspackPluginRendererConfig | RspackPluginRendererConfig[];
+  /**
+   * The TCP port for the dev servers.
+   * @defaultValue 3000
+   */
+  port?: number;
+  /**
+   * The TCP port for web-multi-logger.
+   * @defaultValue 9000
+   */
+  loggerPort?: number;
+  devContentSecurityPolicy?: string;
+  devServer?: Omit<RspackDevServerConfiguration, 'port' | 'static' | 'setupExitSignals' | 'Content-Security-Policy'>;
+  jsonStats?: boolean;
+  packageSourceMaps?: boolean;
+}
+
+export interface RspackPluginRendererConfig {
+  /**
+   * The rspack config for your renderer process
+   */
+  config: RspackConfiguration | string;
+  jsonStats?: boolean;
+  nodeIntegration?: boolean;
+  entryPoints: RspackPluginEntryPoint[];
+}
+
+export interface EntryPointPluginConfig {
+  name: string;
+}