Function getDefaultTerminalShell

packages/server/src/utils/process-launch.ts:279–294

(
  platform: NodeJS.Platform = process.platform,
  env: NodeJS.ProcessEnv = process.env
)

  process.on(signal, () => {
    killTree(signal);
    scheduleForceKill();
  });
});

if (mode === 'pipe-file') {
  const [stdinFile, ...args] = rest;
  cleanupTarget = stdinFile;
  let stdinStream = null;
  let stdinStreamClosed = false;
  let finishingWithChildResult = false;

  function isBrokenPipeError(error) {
    const code = error && error.code;
    return code === 'EPIPE'
      || code === 'ECONNRESET'
      || code === 'ERR_STREAM_DESTROYED'
      || code === 'ERR_STREAM_WRITE_AFTER_END';
  }