fix(vite-node): fix buildStart on Vite 6 (#7480)

Author: hi-ogawa

packages/vite-node/README.md

@@ -82,7 +82,7 @@ Note that when using the `--script` option, Vite Node forwards every argument an
 In Vite Node, the server and runner (client) are separated, so you can integrate them in different contexts (workers, cross-process, or remote) if needed. The demo below shows a simple example of having both (server and runner) running in the same context
 
 ```ts
-import { createServer } from 'vite'
+import { createServer, version as viteVersion } from 'vite'
 import { ViteNodeRunner } from 'vite-node/client'
 import { ViteNodeServer } from 'vite-node/server'
 import { installSourcemapsSupport } from 'vite-node/source-map'
@@ -94,8 +94,10 @@ const server = await createServer({
     disabled: true,
   },
 })
-// this is need to initialize the plugins
-await server.pluginContainer.buildStart({})
+// For old Vite, this is need to initialize the plugins.
+if (Number(viteVersion.split('.')[0]) < 6) {
+  await server.pluginContainer.buildStart({})
+}
 
 // create vite-node server
 const node = new ViteNodeServer(server)

packages/vite-node/src/cli.ts

@@ -2,7 +2,7 @@ import type { ViteNodeServerOptions } from './types'
 import { resolve } from 'node:path'
 import cac from 'cac'
 import c from 'tinyrainbow'
-import { createServer, loadEnv } from 'vite'
+import { createServer, loadEnv, version as viteVersion } from 'vite'
 import { version } from '../package.json'
 import { ViteNodeRunner } from './client'
 import { createHotContext, handleMessage, viteNodeHmrPlugin } from './hmr'
@@ -94,7 +94,9 @@ async function run(files: string[], options: CliOptions = {}) {
     },
     plugins: [options.watch && viteNodeHmrPlugin()],
   })
-  await server.pluginContainer.buildStart({})
+  if (Number(viteVersion.split('.')[0]) < 6) {
+    await server.pluginContainer.buildStart({})
+  }
 
   const env = loadEnv(server.config.mode, server.config.envDir, '')
 

test/vite-node/src/buildStart/test.ts

@@ -0,0 +1 @@
+export default 'test'

test/vite-node/src/buildStart/vite.config.ts

@@ -0,0 +1,21 @@
+import { defineConfig } from 'vite'
+
+const data: string[] = []
+
+export default defineConfig({
+  plugins: [
+    {
+      name: 'test-plugin',
+      async buildStart() {
+        data.push('buildStart:in')
+        await new Promise(r => setTimeout(r, 100))
+        data.push('buildStart:out')
+      },
+      transform(_code, id) {
+        if (id.endsWith('/test.ts')) {
+          console.log(JSON.stringify(data))
+        }
+      },
+    },
+  ],
+})

test/vite-node/test/cli.test.ts

@@ -58,3 +58,9 @@ it('error stack', async () => {
   const { viteNode } = await runViteNodeCli('--watch', entryPath)
   await viteNode.waitForStdout('source-map.ts:7:11')
 })
+
+it('buildStart', async () => {
+  const root = resolve(__dirname, '../src/buildStart')
+  const result = await runViteNodeCli('--root', root, resolve(root, 'test.ts'))
+  await result.viteNode.waitForStdout('["buildStart:in","buildStart:out"]')
+})