ue4: remove

Closes https://github.com/NixOS/nixpkgs/issues/17162
has been broken for years

pkgs/games/ue4/default.nix

@@ -1,83 +0,0 @@
-{ lib, stdenv, writeScript, fetchurl, requireFile, unzip, clang, mono, which,
-  xorg, xdg-user-dirs }:
-
-let
-  deps = import ./cdn-deps.nix { inherit fetchurl; };
-  linkDeps = writeScript "link-deps.sh" (lib.concatMapStringsSep "\n" (hash:
-    let prefix = lib.concatStrings (lib.take 2 (lib.stringToCharacters hash));
-    in ''
-      mkdir -p .git/ue4-gitdeps/${prefix}
-      ln -s ${lib.getAttr hash deps} .git/ue4-gitdeps/${prefix}/${hash}
-    ''
-  ) (lib.attrNames deps));
-  libPath = lib.makeLibraryPath [
-    xorg.libX11 xorg.libXScrnSaver xorg.libXau xorg.libXcursor xorg.libXext
-    xorg.libXfixes xorg.libXi xorg.libXrandr xorg.libXrender xorg.libXxf86vm
-    xorg.libxcb
-  ];
-in
-stdenv.mkDerivation rec {
-  pname = "ue4";
-  version = "4.10.2";
-  sourceRoot = "UnrealEngine-${version}-release";
-  src = requireFile {
-    name = "${sourceRoot}.zip";
-    url = "https://github.com/EpicGames/UnrealEngine/releases/tag/${version}";
-    sha256 = "1rh6r2z00kjzq1i2235py65bg9i482az4rwr14kq9n4slr60wkk1";
-  };
-  unpackPhase = ''
-    ${unzip}/bin/unzip $src
-  '';
-  configurePhase = ''
-    ${linkDeps}
-
-    # Sometimes mono segfaults and things start downloading instead of being
-    # deterministic. Let's just fail in that case.
-    export http_proxy="nodownloads"
-
-    patchShebangs Setup.sh
-    patchShebangs Engine/Build/BatchFiles/Linux
-    ./Setup.sh
-    ./GenerateProjectFiles.sh
-  '';
-
-  installPhase = ''
-    mkdir -p $out/bin $out/share/UnrealEngine
-
-    sharedir="$out/share/UnrealEngine"
-
-    cat << EOF > $out/bin/UE4Editor
-    #! $SHELL -e
-
-    sharedir="$sharedir"
-
-    # Can't include spaces, so can't piggy-back off the other Unreal directory.
-    workdir="\$HOME/.config/unreal-engine-nix-workdir"
-    if [ ! -e "\$workdir" ]; then
-      mkdir -p "\$workdir"
-      ${xorg.lndir}/bin/lndir "\$sharedir" "\$workdir"
-      unlink "\$workdir/Engine/Binaries/Linux/UE4Editor"
-      cp "\$sharedir/Engine/Binaries/Linux/UE4Editor" "\$workdir/Engine/Binaries/Linux/UE4Editor"
-    fi
-
-    cd "\$workdir/Engine/Binaries/Linux"
-    export PATH="${xdg-user-dirs}/bin\''${PATH:+:}\$PATH"
-    export LD_LIBRARY_PATH="${libPath}\''${LD_LIBRARY_PATH:+:}\$LD_LIBRARY_PATH"
-    exec ./UE4Editor "\$@"
-    EOF
-    chmod +x $out/bin/UE4Editor
-
-    cp -r . "$sharedir"
-  '';
-  buildInputs = [ clang mono which xdg-user-dirs ];
-
-  meta = {
-    description = "A suite of integrated tools for game developers to design and build games, simulations, and visualizations";
-    homepage = "https://www.unrealengine.com/what-is-unreal-engine-4";
-    license = lib.licenses.unfree;
-    platforms = lib.platforms.linux;
-    maintainers = [ ];
-    # See issue https://github.com/NixOS/nixpkgs/issues/17162
-    broken = true;
-  };
-}

pkgs/games/ue4/generate-expr-from-cdn.sh

@@ -1,37 +0,0 @@
-#!/bin/sh
-
-go() {
-    file="$1"
-
-    IFS=$'\n'
-    for pack in $(perl -n -e '/(<Pack .*\/>)/ && print "$1\n"' $file); do
-        remotepath=$(echo "$pack" | perl -n -e '/RemotePath="([^"]*)"/ && print $1')
-        hash=$(echo "$pack" | perl -n -e '/Hash="([^"]*)"/ && print $1')
-        url="http://cdn.unrealengine.com/dependencies/$remotepath/$hash"
-
-        until sha256=$(nix-prefetch-url $url --type sha256); do
-            true
-        done
-
-        cat <<EOF
-  "$hash" = fetchurl {
-    url = $url;
-    sha256 = "$sha256";
-  };
-EOF
-    done
-}
-
-
-cat <<EOF
-{ fetchurl }:
-
-{
-EOF
-
-go Engine/Build/Commit.gitdeps.xml
-go Engine/Build/Promoted.gitdeps.xml
-
-cat <<EOF
-}
-EOF

pkgs/top-level/aliases.nix

@@ -924,6 +924,7 @@ mapAliases ({
   uade123 = uade; # Added 2022-07-30
   uberwriter = apostrophe; # Added 2020-04-23
   ubootBeagleboneBlack = ubootAmx335xEVM; # Added 2020-01-21
+  ue4 = throw "ue4 has been removed, because the package was broken for years"; # Added 2023-11-22
   uhd3_5 = throw "uhd3_5 has been removed, because it was no longer needed"; # Added 2023-10-07
   uhhyou.lv2 = throw "'uhhyou.lv2' has been removed, upstream gone"; # Added 2023-06-21
   unicorn-emu = unicorn; # Added 2020-10-29

pkgs/top-level/all-packages.nix

@@ -38548,8 +38548,6 @@ with pkgs;
 
   urbanterror = callPackage ../games/urbanterror { };
 
-  ue4 = callPackage ../games/ue4 { };
-
   ue4demos = recurseIntoAttrs (callPackage ../games/ue4demos { });
 
   ut2004Packages = dontRecurseIntoAttrs (callPackage ../games/ut2004 { });