code: private boolean deleteCache( ArtifactStore store, String path, EventMetadata eventMetadata )
                      throws IndyWorkflowException
      {
          if ( store.getKey().getType() == hosted )
          {
              return false;
          }
          final Transfer item = getStorageReference( store, path == null ? ROOT_PATH : path );
          logger.trace( "Delete cache, item: {}", item );
          return doDelete( item, eventMetadata );
      }
docs: clean just the cache (storage of groups and remote repos)