code: function checkRootDir() {
          return fs.pathExists(rootDirPath)
              .then(exists => {
                  if (!exists) {
                      // throw new Error(chalk.red(`Target directory does not exist: '${rootDirPath}'`));
                      return fs.ensureDir(rootDirPath).then(() => rootDirPath);
                  }
                  return fs.lstat(rootDirPath)
                      .then(stats => {
                          if (!stats.isDirectory()) {
                              throw new Error(chalk.red(`Target path is not a directory: '${rootDirPath}'\n`));
                          }
                          return utils.fs.isEmptyDir(rootDirPath);
                      })
                      .then(empty => {
                          if (!empty) {
                              throw new Error(chalk.yellow(`Target directory is not empty: '${rootDirPath}'\n`));
                          }
                          return rootDirPath;
                      });
              });
      }
docs: -------------------------------- HELPER METHODS --------------------------------