chore: use tsdown (vitejs#20065)

Author: sapphi-red

packages/create-vite/index.js

@@ -1,3 +1,3 @@
 #!/usr/bin/env node
 
-import './dist/index.mjs'
+import './dist/index.js'

packages/create-vite/package.json

@@ -14,8 +14,8 @@
     "dist"
   ],
   "scripts": {
-    "dev": "unbuild --stub",
-    "build": "unbuild",
+    "dev": "tsdown --watch",
+    "build": "tsdown",
     "typecheck": "tsc --noEmit",
     "prepublishOnly": "npm run build"
   },
@@ -37,6 +37,6 @@
     "cross-spawn": "^7.0.6",
     "mri": "^1.2.0",
     "picocolors": "^1.1.1",
-    "unbuild": "^3.5.0"
+    "tsdown": "^0.11.12"
   }
 }

packages/create-vite/tsconfig.json

@@ -1,15 +1,17 @@
 {
-  "include": ["build.config.ts", "src", "__tests__"],
+  "include": ["tsdown.config.ts", "src", "__tests__"],
   "compilerOptions": {
     "outDir": "dist",
     "target": "ES2023",
     "module": "Preserve",
     "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
     "strict": true,
     "skipLibCheck": true,
     "declaration": false,
     "sourceMap": false,
     "noUnusedLocals": true,
-    "esModuleInterop": true
+    "esModuleInterop": true,
+    "noEmit": true
   }
 }

packages/create-vite/build.config.ts renamed to packages/create-vite/tsdown.config.ts

@@ -1,38 +1,27 @@
 import path from 'node:path'
 import url from 'node:url'
-import { defineBuildConfig } from 'unbuild'
-import licensePlugin from '../vite/rollupLicensePlugin'
+import { defineConfig } from 'tsdown'
+import licensePlugin from '../vite/rollupLicensePlugin.ts'
 
 const __dirname = path.dirname(url.fileURLToPath(import.meta.url))
 
-export default defineBuildConfig({
-  entries: ['src/index'],
-  clean: true,
-  rollup: {
-    inlineDependencies: true,
-    esbuild: {
-      target: 'node20',
-      minify: true,
-    },
-  },
-  hooks: {
-    'rollup:options'(_ctx, options) {
-      options.plugins = [
-        options.plugins,
-        licensePlugin(
-          path.resolve(__dirname, './LICENSE'),
-          'create-vite license',
-          'create-vite',
-          '# License of the files in the directories starting with "template-" in create-vite\n' +
-            'The files in the directories starting with "template-" in create-vite and files\n' +
-            'generated from those files are licensed under the CC0 1.0 Universal license:\n\n' +
-            cc0LicenseText +
-            '\n\n',
-        ),
-      ]
-    },
-  },
-})
+export default defineConfig(() => ({
+  entry: ['src/index.ts'],
+  target: 'node20',
+  minify: true,
+  plugins: [
+    licensePlugin(
+      path.resolve(__dirname, './LICENSE'),
+      'create-vite license',
+      'create-vite',
+      '# License of the files in the directories starting with "template-" in create-vite\n' +
+        'The files in the directories starting with "template-" in create-vite and files\n' +
+        'generated from those files are licensed under the CC0 1.0 Universal license:\n\n' +
+        cc0LicenseText +
+        '\n\n',
+    ),
+  ],
+}))
 
 const cc0LicenseText = `
 CC0 1.0 Universal

packages/plugin-legacy/build.config.ts

@@ -14,17 +14,17 @@
     "@vitejs/plugin-legacy"
   ],
   "main": "./dist/index.cjs",
-  "module": "./dist/index.mjs",
+  "module": "./dist/index.js",
   "types": "./dist/index.d.ts",
   "exports": {
     ".": {
-      "import": "./dist/index.mjs",
+      "import": "./dist/index.js",
       "require": "./dist/index.cjs"
     }
   },
   "scripts": {
-    "dev": "unbuild --stub",
-    "build": "unbuild && pnpm run patch-cjs",
+    "dev": "tsdown --watch",
+    "build": "tsdown && pnpm run patch-cjs",
     "patch-cjs": "tsx ../../scripts/patchCJS.ts",
     "prepublishOnly": "npm run build"
   },
@@ -58,7 +58,7 @@
   "devDependencies": {
     "acorn": "^8.14.1",
     "picocolors": "^1.1.1",
-    "unbuild": "3.4.2",
+    "tsdown": "^0.11.12",
     "vite": "workspace:*"
   }
 }

packages/plugin-legacy/package.json

@@ -1,5 +1,5 @@
 {
-  "include": ["build.config.ts", "src"],
+  "include": ["tsdown.config.ts", "src"],
   "exclude": ["**/*.spec.ts"],
   "compilerOptions": {
     "outDir": "dist",

packages/plugin-legacy/tsconfig.json

@@ -0,0 +1,14 @@
+import { defineConfig } from 'tsdown'
+
+export default defineConfig({
+  entry: ['src/index.ts'],
+  format: ['esm', 'cjs'],
+  target: 'node20',
+  tsconfig: false, // disable tsconfig `paths` when bundling
+  outputOptions(opts, format) {
+    if (format === 'cjs') {
+      opts.exports = 'named'
+    }
+    return opts
+  },
+})