anchor.diff:  
     pycharm-professional = buildPycharm rec {
       name = "pycharm-professional-${version}";
  -    version = "2018.1.1"; /* updated by script */
  +    version = "2018.1.2"; /* updated by script */
       description = "PyCharm Professional Edition";
       license = stdenv.lib.licenses.unfree;
       src = fetchurl {
         url = "https://download.jetbrains.com/python/${name}.tar.gz";
  -      sha256 = "0k7529xhhnvjz7ycs5ab4qc4cr35g1v2qxlswy1aqcgzh2zg4c85"; /* updated by script */
  +      sha256 = "08cfmrrmxs67dc61cvjc0ynzng0hnr2i78fv3m888k4x63cy6mv5"; /* updated by script */
       };
       wmClass = "jetbrains-pycharm";
       update-channel = "PyCharm_Release";
  
positive.code: 
    ruby-mine = buildRubyMine rec {
      name = "ruby-mine-${version}";
      version = "2017.3.4"; /* updated by script */
      description = "The Most Intelligent Ruby and Rails IDE";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/ruby/RubyMine-${version}.tar.gz";
        sha256 = "094m45jhrh4n64q5lrgfyvrimqjll6kcl2cx3cbsa3pp7x16abqn"; /* updated by script */
      };
      wmClass = "jetbrains-rubymine";
      update-channel = "rm2017.3";
    };
  
    webstorm = buildWebStorm rec {
  
negative.code: 
    clion = buildClion rec {
      name = "clion-${version}";
      version = "2018.1.2"; /* updated by script */
      description  = "C/C++ IDE. New. Intelligent. Cross-platform";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/cpp/CLion-${version}.tar.gz";
        sha256 = "158ydbr0bbzm1nqi4xhrcp6bwk7kmiw78v959h7bxg3y7z55hbwa"; /* updated by script */
      };
      wmClass = "jetbrains-clion";
      update-channel = "CLion_Release"; # channel's id as in http://www.jetbrains.com/updates/updates.xml
  