fix(config): write temporary vite config to node_modules (#18509)

packages/vite/src/node/config.ts

@@ -84,7 +84,7 @@ import { createLogger } from './logger'
 import type { DepOptimizationOptions } from './optimizer'
 import type { JsonOptions } from './plugins/json'
 import type { PackageCache } from './packages'
-import { findNearestPackageData } from './packages'
+import { findNearestNodeModules, findNearestPackageData } from './packages'
 import { loadEnv, resolveEnvPrefix } from './env'
 import type { ResolvedSSROptions, SSROptions } from './ssr'
 import { resolveSSROptions } from './ssr'
@@ -1717,16 +1717,24 @@ async function loadConfigFromBundledFile(
   // with --experimental-loader themselves, we have to do a hack here:
   // write it to disk, load it with native Node ESM, then delete the file.
   if (isESM) {
-    const fileBase = `${fileName}.timestamp-${Date.now()}-${Math.random()
-      .toString(16)
-      .slice(2)}`
-    const fileNameTmp = `${fileBase}.mjs`
-    const fileUrl = `${pathToFileURL(fileBase)}.mjs`
-    await fsp.writeFile(fileNameTmp, bundledCode)
+    const nodeModulesDir = findNearestNodeModules(path.dirname(fileName))
+    if (nodeModulesDir) {
+      await fsp.mkdir(path.resolve(nodeModulesDir, '.vite-temp/'), {
+        recursive: true,
+      })
+    }
+    const hash = `timestamp-${Date.now()}-${Math.random().toString(16).slice(2)}`
+    const tempFileName = nodeModulesDir
+      ? path.resolve(
+          nodeModulesDir,
+          `.vite-temp/${path.basename(fileName)}.${hash}.mjs`,
+        )
+      : `${fileName}.${hash}.mjs`
+    await fsp.writeFile(tempFileName, bundledCode)
     try {
-      return (await import(fileUrl)).default
+      return (await import(pathToFileURL(tempFileName).href)).default
     } finally {
-      fs.unlink(fileNameTmp, () => {}) // Ignore errors
+      fs.unlink(tempFileName, () => {}) // Ignore errors
     }
   }
   // for cjs, we can register a custom loader via `_require.extensions`

packages/vite/src/node/packages.ts

@@ -235,6 +235,21 @@ function getResolveCacheKey(key: string, options: InternalResolveOptions) {
   ].join('|')
 }
 
+export function findNearestNodeModules(basedir: string): string | null {
+  while (basedir) {
+    const pkgPath = path.join(basedir, 'node_modules')
+    if (tryStatSync(pkgPath)?.isDirectory()) {
+      return pkgPath
+    }
+
+    const nextBasedir = path.dirname(basedir)
+    if (nextBasedir === basedir) break
+    basedir = nextBasedir
+  }
+
+  return null
+}
+
 export function watchPackageDataPlugin(packageCache: PackageCache): Plugin {
   // a list of files to watch before the plugin is ready
   const watchQueue = new Set<string>()