code: function load() {
    if (process.env.BABEL_DISABLE_CACHE) return;
  
    process.on("exit", save);
    process.nextTick(save);
  
    if (!_pathExists2["default"].sync(FILENAME)) return;
  
    try {
      data = JSON.parse(_fs2["default"].readFileSync(FILENAME));
    } catch (err) {
      return;
    }
  }
docs: Load cache from disk and parse.