Method stop

packages/cli/src/util/dev/server.ts:1273–1320

* Shuts down the `vercel dev` server, and cleans up any temporary resources.

(exitCode?: number)

   * Shuts down the `vercel dev` server, and cleans up any temporary resources.
   */
  async stop(exitCode?: number): Promise<void> {
    if (this.stopping) return;
    this.stopping = true;

    const { devProcess } = this;
    const { debug } = output;
    const ops: Promise<any>[] = [];

    for (const match of this.buildMatches.values()) {
      ops.push(shutdownBuilder(match));
    }

    if (devProcess) {
      ops.push(treeKill(devProcess.pid!));
    }

    if (this.orchestrator) {
      ops.push(this.orchestrator.stopAll());
    }

    if (this.queueBroker) {
      this.queueBroker.stop();
    }

    ops.push(close(this.server));

    if (this.watcher) {
      debug(`Closing file watcher`);
      const closePromise = this.watcher.close();
      if (closePromise) {
        ops.push(closePromise);
      }
    }

    for (const pid of this.shutdownCallbacks.keys()) {
      ops.push(this.killBuilderDevServer(pid));
    }

    try {
      await Promise.all(ops);
    } catch (err: unknown) {
      if (isErrnoException(err) && err.code === 'ERR_SERVER_NOT_RUNNING') {
        process.exit(exitCode || 0);
      } else {
        throw err;
      }
    }
  }

  async killBuilderDevServer(pid: number) {
    const { debug } = output;