Function execOrDie

build-system/common/exec.js:46–51

* Executes the provided command, and terminates the program in case of failure. * * @param {string} cmd * @param {?Object=} options

(cmd, options)

 * @param {?Object=} options
 */
function execOrDie(cmd, options) {
  const p = exec(cmd, options);
  if (p.status && p.status != 0) {
    process.exit(p.status);
  }
}

/**
 * Executes the provided command, piping the parent process' stderr, updating