Function handleSessionStop

packages/next/src/cli/next-dev.ts:80–162

(signal: NodeJS.Signals | number | null)

)

const handleSessionStop = async (signal: NodeJS.Signals | number | null) => {
  if (signal != null && child?.pid) child.kill(signal)
  if (sessionStopHandled) return
  sessionStopHandled = true

  // Capture the child's exit code if it has already exited and caused the
  // session stop (via the 'exit' event), otherwise assume success (0).
  const exitCode = child?.exitCode || 0

  if (
    signal != null &&
    child?.pid &&
    child.exitCode === null &&
    child.signalCode === null
  ) {
    let exitTimeout = setTimeout(() => {
      child?.kill('SIGKILL')
    }, CHILD_EXIT_TIMEOUT_MS)
    await once(child, 'exit').catch(() => {})
    clearTimeout(exitTimeout)
  }

  sessionSpan.stop()

  try {
    const { eventCliSessionStopped } =
      require('../telemetry/events/session-stopped') as typeof import('../telemetry/events/session-stopped')

    let pagesDir: boolean = !!traceGlobals.get('pagesDir')
    let appDir: boolean = !!traceGlobals.get('appDir')

    if (
      typeof traceGlobals.get('pagesDir') === 'undefined' ||
      typeof traceGlobals.get('appDir') === 'undefined'
    ) {
      const pagesResult = findPagesDir(dir)
      appDir = !!pagesResult.appDir
      pagesDir = !!pagesResult.pagesDir
    }

    let telemetry =
      (traceGlobals.get('telemetry') as InstanceType<
        typeof import('../telemetry/storage').Telemetry
      >) ||
      new Telemetry({
        distDir: path.join(dir, distDir || '.next'),
      })

    telemetry.record(
      eventCliSessionStopped({
        cliCommand: 'dev',
        turboFlag: isTurbopack,
        durationMilliseconds: Date.now() - sessionStarted,
        pagesDir,
        appDir,
      }),
      true
    )