Reapply "ensure webpack worker exits bubble to parent process (#72921)…

…" (#73136)

This reverts commit 199d2e9.

packages/next/src/build/webpack-build/index.ts

@@ -2,9 +2,8 @@ import type { COMPILER_INDEXES } from '../../shared/lib/constants'
 import * as Log from '../output/log'
 import { NextBuildContext } from '../build-context'
 import type { BuildTraceContext } from '../webpack/plugins/next-trace-entrypoints-plugin'
-import { Worker } from 'next/dist/compiled/jest-worker'
+import { Worker } from '../../lib/worker'
 import origDebug from 'next/dist/compiled/debug'
-import type { ChildProcess } from 'child_process'
 import path from 'path'
 import { exportTraceState, recordTraceEvents } from '../../trace'
 
@@ -38,8 +37,13 @@ async function webpackBuildWithWorker(
 
   prunedBuildContext.pluginState = pluginState
 
-  const getWorker = (compilerName: string) => {
-    const _worker = new Worker(path.join(__dirname, 'impl.js'), {
+  const combinedResult = {
+    duration: 0,
+    buildTraceContext: {} as BuildTraceContext,
+  }
+
+  for (const compilerName of compilerNames) {
+    const worker = new Worker(path.join(__dirname, 'impl.js'), {
       exposedMethods: ['workerMain'],
       numWorkers: 1,
       maxRetries: 0,
@@ -50,31 +54,6 @@ async function webpackBuildWithWorker(
         },
       },
     }) as Worker & typeof import('./impl')
-    _worker.getStderr().pipe(process.stderr)
-    _worker.getStdout().pipe(process.stdout)
-
-    for (const worker of ((_worker as any)._workerPool?._workers || []) as {
-      _child: ChildProcess
-    }[]) {
-      worker._child.on('exit', (code, signal) => {
-        if (code || (signal && signal !== 'SIGINT')) {
-          debug(
-            `Compiler ${compilerName} unexpectedly exited with code: ${code} and signal: ${signal}`
-          )
-        }
-      })
-    }
-
-    return _worker
-  }
-
-  const combinedResult = {
-    duration: 0,
-    buildTraceContext: {} as BuildTraceContext,
-  }
-
-  for (const compilerName of compilerNames) {
-    const worker = getWorker(compilerName)
 
     const curResult = await worker.workerMain({
       buildContext: prunedBuildContext,

packages/next/src/lib/worker.ts

@@ -50,8 +50,8 @@ export class Worker {
       // Get the node options without inspect and also remove the
       // --max-old-space-size flag as it can cause memory issues.
       const nodeOptions = getParsedNodeOptionsWithoutInspect()
-      delete nodeOptions['max-old-space-size']
-      delete nodeOptions['max_old_space_size']
+      // delete nodeOptions['max-old-space-size']
+      // delete nodeOptions['max_old_space_size']
 
       this._worker = new JestWorker(workerPath, {
         ...farmOptions,