wip: remove cjs build from plugin-legacy

Author: sapphi-red

packages/plugin-legacy/build.config.ts

@@ -5,7 +5,6 @@ export default defineBuildConfig({
   clean: true,
   declaration: true,
   rollup: {
-    emitCJS: true,
     inlineDependencies: true,
     esbuild: {
       target: 'node20',

packages/plugin-legacy/package.json

@@ -13,19 +13,10 @@
     "vite-plugin",
     "@vitejs/plugin-legacy"
   ],
-  "main": "./dist/index.cjs",
-  "module": "./dist/index.mjs",
-  "types": "./dist/index.d.ts",
-  "exports": {
-    ".": {
-      "import": "./dist/index.mjs",
-      "require": "./dist/index.cjs"
-    }
-  },
+  "exports": "./dist/index.mjs",
   "scripts": {
     "dev": "unbuild --stub",
-    "build": "unbuild && pnpm run patch-cjs",
-    "patch-cjs": "tsx ../../scripts/patchCJS.ts",
+    "build": "unbuild",
     "prepublishOnly": "npm run build"
   },
   "engines": {

packages/plugin-legacy/src/index.ts

@@ -997,3 +997,16 @@ export const cspHashes = [
 export type { Options }
 
 export default viteLegacyPlugin
+
+// Compat for require
+function viteLegacyPluginCjs(this: unknown, options: Options): Plugin[] {
+  return viteLegacyPlugin.call(this, options)
+}
+Object.assign(viteLegacyPluginCjs, {
+  cspHashes,
+  default: viteLegacyPluginCjs,
+  detectPolyfills,
+})
+
+// TODO: https://github.com/unjs/unbuild/issues/533
+export { viteLegacyPluginCjs as 'module.exports' }