Method exists

src/managers/GitRefManager.js:325–332

* Checks if a ref exists. * * @param {Object} args * @param {FSClient} args.fs - A file system implementation. * @param {string} [args.gitdir=join(dir, '.git')] - [required] The [git directory](dir-vs-gitdir.md) path * @param {string} args.ref - The ref to check. * @returns {Promis

({ fs, gitdir, ref })

   * @returns {Promise<boolean>} - True if the ref exists, false otherwise.
   */
  static async exists({ fs, gitdir, ref }) {
    try {
      await GitRefManager.expand({ fs, gitdir, ref })
      return true
    } catch (err) {
      return false
    }
  }

  /**
   * Expands a ref to its full name.