Function runWatch

test/utils/test-utils.js:78–133

(cwd, args = [], options = {})

 * @returns {Promise<import("execa").Result>} The webpack output or Promise when nodeOptions are present
 */
const runWatch = async (cwd, args = [], options = {}) => {
  const execa = await import("execa");
  const process = createProcess(execa, cwd, args, options);
  const outputKillStr = options.killString || /webpack \d+\.\d+\.\d/;
  const { stdoutKillStr } = options;
  const { stderrKillStr } = options;

  let isStdoutDone = false;
  let isStderrDone = false;

  if (options.handler) {
    options.handler(process);
  } else {
    process.stdout.pipe(
      new Writable({
        write(chunk, encoding, callback) {
          const output = stripVTControlCharacters(chunk.toString("utf8"));

          if (stdoutKillStr && stdoutKillStr.test(output)) {
            isStdoutDone = true;
          } else if (!stdoutKillStr && outputKillStr.test(output)) {
            processKill(process);
          }

          if (isStdoutDone && isStderrDone) {
            processKill(process);
          }

          callback();
        },
      }),
    );

    process.stderr.pipe(
      new Writable({
        write(chunk, encoding, callback) {
          const output = stripVTControlCharacters(chunk.toString("utf8"));

          if (stderrKillStr && stderrKillStr.test(output)) {
            isStderrDone = true;
          } else if (!stderrKillStr && outputKillStr.test(output)) {
            processKill(process);
          }

          if (isStdoutDone && isStderrDone) {
            processKill(process);
          }

          callback();
        },
      }),
    );
  }

  return process;
};

/**