ue4demos: drop

{

  lib,

  stdenv,

  fetchurl,

  unzip,

  patchelf,

  libxxf86vm,

  libxext,

  openal,

}:

let

  urls = file: [

    # Untrusted mirrors - do not update hashes

    "https://ludios.org/mirror/ue4demos/${file}"

    "https://web.archive.org/web/20140824192039/http://ue4linux.raxxy.com/${file}"

  ];

  buildDemo =

    { name, src }:

    stdenv.mkDerivation rec {

      inherit name src;

      nativeBuildInputs = [

        unzip

        patchelf

      ];

      rtdeps =

        lib.makeLibraryPath [

          libxxf86vm

          libxext

          openal

        ]

        + ":"

        + lib.makeSearchPathOutput "lib" "lib64" [ stdenv.cc.cc ];

      buildCommand = ''

        mkdir -p "$out"

        cd $out

        unzip $src

        interpreter=$(echo ${stdenv.cc.libc}/lib/ld-linux*.so.2)

        binary=$(find . -executable -type f)

        patchelf \

          --set-interpreter $interpreter \

          --set-rpath ${rtdeps} \

          "$binary"

        # Workaround on

        # LogLinuxPlatformFile:Warning: open('/nix/store/hash-ue4demos-demo/demo/demo/Saved/Config/CleanSourceConfigs/Engine.ini', Flags=0x00080241) failed: errno=2 (No such file or directory)

        # for Vehicle, Shooter and Strategy games.

        ls | grep ' ' && $(

          haxname=$(ls | grep ' ' | sed 's/ //g'); \

          haxpath=$(ls | grep ' ')/$haxname/Saved; \

          mkdir -p "$haxpath"/Config/CleanSourceConfigs; \

          ln -s /dev/null "$haxpath"/Config/CleanSourceConfigs/Engine.ini; \

          mkdir -p "$haxpath"/Logs; \

          ln -s /dev/null "$haxpath"/Logs/$haxname.log)

        # Executables are buried under a varied paths across demos.

        mkdir bin

        cd bin

        ln -s "$out/$binary" $(basename "$out/$binary")

      '';

      meta = {

        description = "Unreal Engine 4 Linux demos";

        homepage = "https://wiki.unrealengine.com/Linux_Demos";

        platforms = [ "x86_64-linux" ];

        license = lib.licenses.unfree;

      };

    };

in

{

  tappy_chicken = buildDemo {

    name = "ue4demos-tappy_chicken";

    src = fetchurl {

      urls = urls "tappy_chicken.zip";

      sha256 = "0lwhvk3lpb2r5ng2cnzk7fpjj5lwhy2sch1a8v154x1xfhfb3h4v";

    };

  };

  swing_ninja = buildDemo {

    name = "ue4demos-swing_ninja";

    src = fetchurl {

      urls = urls "swing_ninja.zip";

      sha256 = "1bmgqqk3lda5h7nnqi59jgyrsn0clr3xs0k1jclnqf9fk0m8hjcv";

    };

  };

  card_game = buildDemo {

    name = "ue4demos-card_game";

    src = fetchurl {

      urls = urls "card_game.zip";

      sha256 = "154baqias5q7kad0c89k35jbmnmlm865sll02mi7bk1yllcckz5z";

    };

  };

  vehicle_game = buildDemo {

    name = "ue4demos-vehicle_game";

    src = fetchurl {

      urls = urls "vehicle_game.zip";

      sha256 = "03dlacf1iv7sgn7pl3sx9r6243wy8fsi2kd858syfm9slg0190bs";

    };

  };

  shooter_game = buildDemo {

    name = "ue4demos-shooter_game";

    src = fetchurl {

      urls = urls "shooter_game.zip";

      sha256 = "1bk32k349iqbqk8x8jffnqq0pjiqmvrvv675xxmlvkkr8qrlhz98";

    };

  };

  strategy_game = buildDemo {

    name = "ue4demos-strategy_game";

    src = fetchurl {

      urls = urls "strategy_game.zip";

      sha256 = "1p7i966v1ssm20y12g4wsccpgnky3szy19qyjlacynk7bgbk6lg7";

    };

  };

  black_jack = buildDemo {

    name = "ue4demos-black_jack";

    src = fetchurl {

      urls = urls "black_jack.zip";

      sha256 = "0g52wkzn5isa3az32y25yx5b56wxks97pajqwkmm6gf4qpkfksxv";

    };

  };

  landscape_mountains = buildDemo {

    name = "ue4demos-landscape_mountains";

    src = fetchurl {

      urls = urls "landscape_mountains.zip";

      sha256 = "14jzajhs3cpydvf3ag7lpj4hkpbjpwnn3xkdvdx92fi0pcl8cwym";

    };

  };

  matinee_demo = buildDemo {

    name = "ue4demos-matinee_demo";

    src = fetchurl {

      urls = urls "matinee_demo.zip";

      sha256 = "0ib8k6fl15cxzdarar2sqq5v3g3c7p2jidkdjd00nym6cvkibb4d";

    };

  };

  elemental_demo = buildDemo {

    name = "ue4demos-elemental_demo";

    src = fetchurl {

      urls = urls "elemental_demo.zip";

      sha256 = "1v4jdsy8jvv8wgc8dx17q17xigfrya5q0nfdzw4md7fzm3bg9z0v";

    };

  };

  effects_cave_demo = buildDemo {

    name = "ue4demos-effects_cave_demo";

    src = fetchurl {

      urls = urls "effects_cave_demo.zip";

      sha256 = "0lvd3aaha2x9pnpkdmrzi6nf7hymr95834z3l8shygjf9kbbzsz4";

    };

  };

  realistic_rendering = buildDemo {

    name = "ue4demos-realistic_rendering";

    src = fetchurl {

      urls = urls "realistic_rendering_demo.zip";

      sha256 = "0r16nznkv475hkw5rnngqsc69ch8vh86dppyyyr9nn43dkr2110a";

    };

  };

  reflections_subway = buildDemo {

    name = "ue4demos-reflections_subway";

    src = fetchurl {

      urls = urls "reflections_subway_demo.zip";

      sha256 = "0dw5sm7405gxw9iqz0vpnhdprrb4wl5i14pvzl1381k973m8bd00";

    };

  };

  scifi_hallway_demo = buildDemo {

    name = "ue4demos-scifi_hallway_demo";

    src = fetchurl {

      urls = urls "sci-fi_hallway_demo.zip";

      sha256 = "14qp9iwm47awn8d9j6ijh6cnds308x60xs4vi2fvz2666jlz1pq2";

    };

  };

  mobile_temple_demo = buildDemo {

    name = "ue4demos-mobile_temple_demo";

    src = fetchurl {

      urls = urls "mobile_temple_demo.zip";

      sha256 = "12bz4h1b9lhmqglwsa6r8q48ijqbjdha9fql31540d01kigaka75";

    };

  };

  stylized_demo = buildDemo {

    name = "ue4demos-stylized_demo";

    src = fetchurl {

      urls = urls "stylized_demo.zip";

      sha256 = "1676ridmj8rk4y4hbdscfnnka5l636av1xxl0qwvk236kq9j7v0l";

    };

  };

  blueprint_examples_demo = buildDemo {

    name = "ue4demos-blueprint_examples_demo";

    src = fetchurl {

      urls = urls "blueprint_examples_demo.zip";

      sha256 = "076q33h2hy965fvr805hsprkpcmizf638lj2ik8k923v86b15nbv";

    };

  };

}

  uae = throw "'uae' has been removed due to lack of upstream maintenance. Consider using 'fsuae' instead."; # Added 2025-06-11

  ubuntu_font_family = throw "'ubuntu_font_family' has been renamed to/replaced by 'ubuntu-classic'"; # Converted to throw 2025-10-27

  udisks2 = udisks; # Added 2025-10-30

  ue4demos = throw "'ue4demos' has been removed because it is unmaintained"; # Added 2026-02-07

  unicap = throw "'unicap' has been removed because it is unmaintained"; # Added 2025-05-17

  unifi-poller = throw "'unifi-poller' has been renamed to/replaced by 'unpoller'"; # Converted to throw 2025-10-27

  unzoo = throw "'unzoo' has been removed since it is unmaintained upstream and doesn't compile with newer versions of GCC anymore"; # Removed 2025-05-24

  ultrastar-manager = libsForQt5.callPackage ../tools/misc/ultrastar-manager { };

  ue4demos = recurseIntoAttrs (callPackage ../games/ue4demos { });

  # To ensure vdrift's code is built on hydra

  vdrift-bin = vdrift.bin;