feat: better errors

package.json

@@ -156,6 +156,7 @@
     "semver": "^7.6.3",
     "serve-placeholder": "^2.0.2",
     "serve-static": "^1.16.2",
+    "source-map": "^0.7.4",
     "std-env": "^3.8.0",
     "ufo": "^1.5.4",
     "uncrypto": "^0.1.3",
@@ -164,7 +165,9 @@
     "unimport": "^3.14.5",
     "unstorage": "^1.14.4",
     "untyped": "^1.5.2",
-    "unwasm": "^0.3.9"
+    "unwasm": "^0.3.9",
+    "youch": "4.1.0-beta.4",
+    "youch-core": "^0.3.1"
   },
   "devDependencies": {
     "@azure/functions": "^3.5.1",

src/core/config/defaults.ts

@@ -1,6 +1,6 @@
 import { runtimeDir } from "nitropack/runtime/meta";
 import type { NitroConfig } from "nitropack/types";
-import { join, resolve } from "pathe";
+import { resolve } from "pathe";
 import { isDebug, isTest } from "std-env";
 
 export const NitroDefaults: NitroConfig = {
@@ -58,7 +58,7 @@ export const NitroDefaults: NitroConfig = {
   baseURL: process.env.NITRO_APP_BASE_URL || "/",
   handlers: [],
   devHandlers: [],
-  errorHandler: join(runtimeDir, "internal/error/handler"),
+  errorHandler: undefined,
   routeRules: {},
   prerender: {
     autoSubfolderIndex: true,

src/core/config/loader.ts

@@ -27,6 +27,7 @@ import { resolveRouteRulesOptions } from "./resolvers/route-rules";
 import { resolveRuntimeConfigOptions } from "./resolvers/runtime-config";
 import { resolveStorageOptions } from "./resolvers/storage";
 import { resolveURLOptions } from "./resolvers/url";
+import { resolveErrorOptions } from "./resolvers/error";
 
 const configResolvers = [
   resolveCompatibilityOptions,
@@ -41,6 +42,7 @@ const configResolvers = [
   resolveURLOptions,
   resolveAssetsOptions,
   resolveStorageOptions,
+  resolveErrorOptions,
 ] as const;
 
 export async function loadOptions(

src/core/config/resolvers/error.ts

@@ -0,0 +1,12 @@
+import { runtimeDir } from "nitropack/runtime/meta";
+import type { NitroOptions } from "nitropack/types";
+import { join } from "pathe";
+
+export async function resolveErrorOptions(options: NitroOptions) {
+  if (!options.errorHandler) {
+    options.errorHandler = join(
+      runtimeDir,
+      `internal/error/${options.dev ? "dev" : "prod"}`
+    );
+  }
+}

src/core/dev-server/server.ts

@@ -28,7 +28,10 @@ import { debounce } from "perfect-debounce";
 import { servePlaceholder } from "serve-placeholder";
 import serveStatic from "serve-static";
 import { joinURL } from "ufo";
-import defaultErrorHandler from "./error";
+import consola from "consola";
+import defaultErrorHandler, {
+  loadStackTrace,
+} from "../../runtime/internal/error/dev";
 import { createVFSHandler } from "./vfs";
 
 function initWorker(filename: string): Promise<NitroWorker> | undefined {
@@ -49,14 +52,8 @@ function initWorker(filename: string): Promise<NitroWorker> | undefined {
         )
       );
     });
-    worker.once("error", (error) => {
-      const newError = new Error(`[worker init] ${filename} failed`, {
-        cause: error,
-      });
-      if (Error.captureStackTrace) {
-        Error.captureStackTrace(newError, initWorker);
-      }
-      reject(newError);
+    worker.once("error", async (error) => {
+      reject(error);
     });
     const addressListener = (event: any) => {
       if (!event || !event?.address) {
@@ -149,8 +146,9 @@ export function createDevServer(nitro: Nitro): NitroDevServer {
       .then(() => {
         lastError = undefined;
       })
-      .catch((error) => {
-        console.error("[worker reload]", error);
+      .catch(async (error) => {
+        await loadStackTrace(error).catch(() => {});
+        consola.error(error);
         lastError = error;
       })
       .finally(() => {