code: def add_exports_for_repos(repos):
      
      current_exports = _get_current_exports()
      needed_exports = _get_exports_for_repos(repos)
  
      if not needed_exports.difference(current_exports):
          if not _server_is_running():
              _restart_server()
          return
  
      _write_exports_config(current_exports.union(needed_exports))
      _restart_server()
docs: This function will add needed entries to /etc/exports.  It will not remove any
      entries from the file.  It will then restart the server if necessary