anchor.diff: -{ pkgs,  stdenv, fetchurl, unzip, elasticsearch }:
  +{ pkgs,  stdenv, fetchurl, unzip, elasticsearch-oss, javaPackages, elk6Version }:
   
   with pkgs.lib;
   
  
positive.code:       unpackPhase = "true";
        buildInputs = [ unzip ];
        meta = a.meta // {
          platforms = elasticsearch.meta.platforms;
          maintainers = (a.meta.maintainers or []) ++ [ maintainers.offline ];
        };
      });
  
negative.code:   esPlugin = a@{
      pluginName,
      installPhase ? ''
        mkdir -p $out/config
        mkdir -p $out/plugins
        ES_HOME=$out ${elasticsearch-oss}/bin/elasticsearch-plugin install --batch -v file://$src
      '',
      ...
    }:
  