Allow opt-out

package.json

@@ -52,7 +52,7 @@
     "lint-staged": "lint-staged",
     "next-with-deps": "./scripts/next-with-deps.sh",
     "next": "cross-env NEXT_TELEMETRY_DISABLED=1 node --trace-deprecation --enable-source-maps packages/next/dist/bin/next",
-    "next-no-sourcemaps": "cross-env NEXT_TELEMETRY_DISABLED=1 node --trace-deprecation packages/next/dist/bin/next",
+    "next-no-sourcemaps": "echo 'No longer supported. Use `pnpm next --disable-source-maps` instead'; exit 1;",
     "clean-trace-jaeger": "node scripts/rm.mjs test/integration/basic/.next && TRACE_TARGET=JAEGER pnpm next build test/integration/basic",
     "debug": "cross-env NEXT_TELEMETRY_DISABLED=1 node --inspect --trace-deprecation --enable-source-maps packages/next/dist/bin/next",
     "postinstall": "node scripts/git-configure.mjs && node scripts/install-native.mjs",

packages/next/src/bin/next.ts

@@ -172,6 +172,11 @@ program
     '-H, --hostname <hostname>',
     'Specify a hostname on which to start the application (default: 0.0.0.0).'
   )
+  .option(
+    '--disable-source-maps',
+    "Don't start the Dev server with `--enable-source-maps`.",
+    false
+  )
   .option(
     '--experimental-https',
     'Starts the server with HTTPS and generates a self-signed certificate.'

packages/next/src/cli/next-dev.ts

@@ -39,6 +39,7 @@ import { clearTimeout } from 'timers'
 import { flushAllTraces, trace } from '../trace'
 
 export type NextDevOptions = {
+  disableSourceMaps: boolean
   turbo?: boolean
   turbopack?: boolean
   port: number
@@ -265,7 +266,9 @@ const nextDev = async (
         delete nodeOptions['max_old_space_size']
       }
 
-      nodeOptions['enable-source-maps'] = true
+      if (!options.disableSourceMaps) {
+        nodeOptions['enable-source-maps'] = true
+      }
 
       if (nodeDebugType) {
         const address = getParsedDebugAddress()