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{ stdenv, makeWrapper, mesa, xorg, libpulseaudio, libudev }:
{ name, version, fullName, buildPhase ? "", rpath ? [], ... }@attrs:
let
arch = if stdenv.system == "x86_64-linux" then "x86_64" else "x86";
executable = "${fullName}.${arch}";
dataDir = "${fullName}_Data";
in stdenv.mkDerivation ({
name = "${name}-${version}";
inherit fullName version arch executable dataDir;
slugName = name;
nativeBuildInputs = [ makeWrapper ];
buildPhase = let
mainRpath = stdenv.lib.makeLibraryPath ([
stdenv.cc.cc mesa xorg.libX11 xorg.libXcursor xorg.libXrandr
libpulseaudio libudev
] ++ rpath);
in ''
runHook preBuild
patchelf \
--set-interpreter "$(cat $NIX_CC/nix-support/dynamic-linker)" \
--set-rpath ${stdenv.lib.escapeShellArg mainRpath} "$executable"
${buildPhase}
runHook postBuild
'';
installPhase = ''
runHook preInstall
install -vD "$executable" "$out/libexec/$slugName/$slugName"
ln -s "$out/share/$slugName" "$out/libexec/$slugName/Data"
mkdir -p "$out/bin"
makeWrapper "$out/libexec/$slugName/$slugName" "$out/bin/$slugName"
iconpath="$out/share/$slugName/Resources/UnityPlayer.png"
mkdir -p "$out/share/applications"
cat > "$out/share/applications/$slugName.desktop" <<EOF
[Desktop Entry]
Name=$fullName
Type=Application
Version=1.1
Exec=$out/bin/$slugName
Icon=$iconpath
Categories=Game
StartupNotify=true
EOF
cp -vRd "$dataDir" "$out/share/$slugName"
if [ ! -e "$iconpath" ]; then
echo "Desktop icon not found at $iconpath." >&2
exit 1
fi
runHook postInstall
'';
dontStrip = true;
dontPatchELF = true;
} // removeAttrs attrs [ "name" "version" "fullName" "buildPhase" "rpath" ])
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