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{ stdenv, writeScript, fetchurl, requireFile, unzip, clang_35, mono, which,
xorg, xdg-user-dirs }:
let
inherit (stdenv) lib;
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}/${hash}
''
) (lib.attrNames deps));
libPath = stdenv.lib.makeLibraryPath [
xorg.libX11 xorg.libXScrnSaver xorg.libXau xorg.libXcursor xorg.libXext
xorg.libXfixes xorg.libXi xorg.libXrandr xorg.libXrender xorg.libXxf86vm
xorg.libxcb
];
in
stdenv.mkDerivation rec {
name = "ue4-${version}";
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_35 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 = stdenv.lib.licenses.unfree;
platforms = stdenv.lib.platforms.linux;
maintainers = [ stdenv.lib.maintainers.puffnfresh ];
};
}
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