async function setPreviousRevision() {
      /* eslint-disable no-param-reassign */
      shipit.previousRevision = null
      /* eslint-enable no-param-reassign */

      if (!shipit.previousRelease) return

      const revision = await shipit.getRevision(shipit.previousRelease)
      if (revision) {
        shipit.log(chalk.green('Previous revision found.'))
        /* eslint-disable no-param-reassign */
        shipit.previousRevision = revision
        /* eslint-enable no-param-reassign */
      }
    }
Set shipit.previousRevision from remote REVISION file.