with open(os.path.join(self.datadir, "EMPTY_REPO"), 'wt') as fo:

                  fo.write("This repo is empty because its tag has no content for this arch\n")

          uploadpath = self.getUploadDir()

          files = []

          for f in os.listdir(self.datadir):

          oldpkgs = []

          if opts.get('delta'):

              # should be a list of repo ids to delta against

                  if not oldrepo['dist']:

                      raise koji.GenericError("Base repo for deltas must also "

                                              "be a dist repo")

                      # regular repos don't actually have rpms, just pkglist

                  if not os.path.exists(path):

                      raise koji.GenericError('Base drpm repo missing: %s' % path)

                  # note: since we're using the top level dir, this will handle

                  fp.write("This repo is empty because its tag has no content "

                           "for this arch\n")

          # upload repo files

          self.upload_repo()

          self.upload_repo_manifest()

  - preSCMCheckout

  - postSCMCheckout

  .. _plugin-cli-command:

  # the available callback hooks and a list

  # of functions to be called for each event

  callbacks = {

      'prePackageListChange': [],

      'postPackageListChange': [],

      'preTaskStateChange': [],

      'postRepoDone': [],

      'preCommit': [],

      'postCommit': [],

      'preSCMCheckout': [],

      'postSCMCheckout': [],

  }