fix: specify own Node version as target when bundling config files

packages/vite/src/node/config.ts

@@ -1074,7 +1074,7 @@ async function bundleConfigFile(
     absWorkingDir: process.cwd(),
     entryPoints: [fileName],
     write: false,
-    target: ['node18'],
+    target: [`node${process.versions.node}`],
     platform: 'node',
     bundle: true,
     format: isESM ? 'esm' : 'cjs',

playground/config/__tests__/config.spec.ts

@@ -2,6 +2,13 @@ import { resolve } from 'node:path'
 import { loadConfigFromFile } from 'vite'
 import { expect, it } from 'vitest'
 
+const [nvMajor, nvMinor] = process.versions.node.split('.').map(Number)
+const isImportAttributesSupported =
+  (nvMajor === 18 && nvMinor >= 20) ||
+  // Node v19 doesn't support import attributes
+  (nvMajor === 20 && nvMinor >= 10) ||
+  nvMajor >= 21
+
 it('loadConfigFromFile', async () => {
   const { config } = await loadConfigFromFile(
     {} as any,
@@ -24,3 +31,19 @@ it('loadConfigFromFile', async () => {
     }
   `)
 })
+
+it.runIf(isImportAttributesSupported)(
+  'loadConfigFromFile with import attributes',
+  async () => {
+    const { config } = await loadConfigFromFile(
+      {} as any,
+      resolve(__dirname, '../packages/entry/vite.config.import-attributes.ts'),
+      resolve(__dirname, '../packages/entry'),
+    )
+    expect(config).toMatchInlineSnapshot(`
+      {
+        "jsonValue": "vite",
+      }
+    `)
+  },
+)

playground/config/packages/entry/vite.config.import-attributes.ts

@@ -0,0 +1,6 @@
+// We have to import external json to prevent Vite / esbuild from bundling it.
+import pkg from 'vite/package.json' with { type: 'json' }
+
+export default {
+  jsonValue: pkg.name,
+}