anchor.diff:  
     goland = buildGoland rec {
       name = "goland-${version}";
  -    version = "2019.3.4"; /* updated by script */
  +    version = "2020.1"; /* updated by script */
       description = "Up and Coming Go IDE";
       license = stdenv.lib.licenses.unfree;
       src = fetchurl {
         url = "https://download.jetbrains.com/go/${name}.tar.gz";
  -      sha256 = "01dik4ppn4a6m1bmz6cmdnyrilh2v190lrys65n4nps03sjy2v0b"; /* updated by script */
  +      sha256 = "1qlpx3vfqwpyyxjsknhxvbdhyciwihhl0hkinrpdky6bza1yfgf6"; /* updated by script */
       };
       wmClass = "jetbrains-goland";
       update-channel = "GoLand RELEASE";
  
positive.code: 
    ruby-mine = buildRubyMine rec {
      name = "ruby-mine-${version}";
      version = "2019.3.4"; /* updated by script */
      description = "The Most Intelligent Ruby and Rails IDE";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/ruby/RubyMine-${version}.tar.gz";
        sha256 = "13lwrqrkg5vk0azqfhr67psgv1idvkxwjxly2xawr6cy5vnrcd8s"; /* updated by script */
      };
      wmClass = "jetbrains-rubymine";
      update-channel = "RubyMine RELEASE";
  
negative.code: 
    clion = buildClion rec {
      name = "clion-${version}";
      version = "2020.1"; /* updated by script */
      description  = "C/C++ IDE. New. Intelligent. Cross-platform";
      license = stdenv.lib.licenses.unfree;
      src = fetchurl {
        url = "https://download.jetbrains.com/cpp/CLion-${version}.tar.gz";
        sha256 = "18mbw72vgrzkvjykc23h17qxrxfvhjzhy9rxpi2asw196qalavzp"; /* updated by script */
      };
      wmClass = "jetbrains-clion";
      update-channel = "CLion RELEASE"; # channel's id as in http://www.jetbrains.com/updates/updates.xml
  