if failed_components_in_batch:

              log.info("Batch done, but not tagging because of failed component builds. Will "

                       "transition the module to \"failed\"")

              session.commit()

              return []

          elif not built_components_in_batch:

      # Assemble the list of all successful components in the batch.

      good = [c for c in current_batch if c.state == koji.BUILD_STATES['COMPLETE']]

      # If *none* of the components completed for this batch, then obviously the

      # module fails.  However!  We shouldn't reach this scenario.  There is

      # logic over in the component handler which should fail the module build

      # first before we ever get here.  This is here as a race condition safety

      # valve.

      if module_build.component_builds and not good:

          session.commit()

          log.warning("Odd!  All components in batch failed for %r." % module_build)

          return

      for c in module_build.component_builds:

          if c.state in [None, koji.BUILD_STATES['BUILDING']]:

              has_unbuilt_components = True

              has_failed_components = True

      further_work = []

      else:

          if has_failed_components:

          else:

              module_build.transition(config, state=models.BUILD_STATES['done'])

          session.commit()

              # we had a failing component in batch 2.

              elif c.package == "tangerine":

                  assert c.state == koji.BUILD_STATES['FAILED']

              else:

                  assert c.state == koji.BUILD_STATES['COMPLETE']

              # Whole module should be failed.

              assert c.module_build.state == models.BUILD_STATES['failed']

              # We should end up with batch 2 and never start batch 3, because

              # there were failed components in batch 2.

              # Whole module should be failed.

              assert c.module_build.state == models.BUILD_STATES['failed']

              # We should end up with batch 2 and never start batch 3, because

              # there were failed components in batch 2.