anchor.diff:  
             mkdir -p ${cfg.dataDir}/whisper
             chmod 0700 ${cfg.dataDir}/whisper
  -          chown -R graphite:graphite ${cfg.dataDir}
  +          chown graphite:graphite ${cfg.dataDir}
  +          chown graphite:graphite ${cfg.dataDir}/whisper
           '';
         };
       })
  
positive.code:         preStart = ''
            if ! test -e ${dataDir}/db-created; then
              mkdir -p ${dataDir}
              chown -R graphite:graphite ${dataDir}
            fi
          '';
        };
  
negative.code:             # create index
              ${pkgs.python27Packages.graphite_web}/bin/build-index.sh
  
              chown graphite:graphite ${cfg.dataDir}
              chown graphite:graphite ${cfg.dataDir}/whisper
              chown -R graphite:graphite ${cfg.dataDir}/log
  
              touch ${dataDir}/db-created
            fi
          '';
        };
  