Merge pull request #398 from lars-hagen/fix/turbopack-default-pattern

fix(turbopack): restrict default pattern to app directory to prevent middleware crashes

Author: zh-lx

demos/turbopack-next15/package.json

@@ -9,22 +9,22 @@
     "lint": "next lint"
   },
   "dependencies": {
-    "react": "19.1.0",
-    "react-dom": "19.1.0",
-    "next": "15.4.4"
+    "next": "15.5.3",
+    "react": "19.1.1",
+    "react-dom": "19.1.1"
   },
   "devDependencies": {
-    "typescript": "^5",
-    "@types/node": "^20",
-    "@types/react": "^19",
-    "@types/react-dom": "^19",
-    "@tailwindcss/postcss": "^4",
-    "tailwindcss": "^4",
-    "eslint": "^9",
-    "eslint-config-next": "15.4.4",
-    "@eslint/eslintrc": "^3",
+    "@eslint/eslintrc": "^3.3.1",
+    "@mdx-js/loader": "^3.1.1",
+    "@next/mdx": "15.5.3",
+    "@tailwindcss/postcss": "^4.1.13",
+    "@types/node": "^24.3.1",
+    "@types/react": "^19.1.12",
+    "@types/react-dom": "^19.1.9",
     "code-inspector-plugin": "workspace:^",
-    "@next/mdx": "15.4.4",
-    "@mdx-js/loader": "^3.1.0"
+    "eslint": "^9.35.0",
+    "eslint-config-next": "15.5.3",
+    "tailwindcss": "^4.1.13",
+    "typescript": "^5.9.2"
   }
 }

demos/turbopack-next15/src/middleware.ts

@@ -0,0 +1,15 @@
+// Middleware file to verify turbopack compatibility
+// 
+// ⚠️ This file should be REMOVED once Turbopack fixes the middleware issue ⚠️
+// 
+// With the improved pattern '**/app/**/*.{jsx,tsx,js,ts,mjs,mts}' in the turbopack plugin,
+// code-inspector only processes files in app directories, naturally excluding middleware files.
+// This prevents the Turbopack crash issue by default.
+// 
+// This is still a workaround. Track the issues for removal:
+// - https://github.com/vercel/next.js/issues/79592
+// - https://github.com/zh-lx/code-inspector/issues/357
+
+export function middleware() {
+  // Empty middleware - its presence is enough to test the workaround
+}

packages/turbopack/src/index.ts

@@ -36,7 +36,7 @@ export function TurbopackCodeInspectorPlugin(
   const WebpackDistDir = path.resolve(WebpackEntry, '..');
 
   return {
-    '**/*.{jsx,tsx,js,ts,mjs,mts}': {
+    '**/app/**/*.{jsx,tsx,js,ts,mjs,mts}': {
       loaders: [
         {
           loader: `${WebpackDistDir}/loader.js`,