eduke32: automatically update VC_REV, add update script, remove gtk2 (#410876)

pkgs/by-name/ed/eduke32/package.nix

@@ -9,13 +9,14 @@
   copyDesktopItems,
   alsa-lib,
   flac,
-  gtk2,
   libvorbis,
   libvpx,
   libGL,
   SDL2,
   SDL2_mixer,
+  xorg,
   graphicsmagick,
+  unstableGitUpdater,
 }:
 
 let
@@ -33,7 +34,14 @@ stdenv.mkDerivation (finalAttrs: {
     owner = "terminx";
     repo = "eduke32";
     rev = "b8759847124c2c53a165a02efef4a0c778674baf";
-    hash = "sha256-PudO6EKCh6UpoY6GT/J0hkVteKNIAO4Q454jIzaegMg=";
+    hash = "sha256-+XaIoCP6TA5QMzs/VxXIv1NP8X4i9rIm6iw+pFH8Q6Q=";
+    deepClone = true;
+    leaveDotGit = true;
+    postFetch = ''
+      cd $out
+      git rev-list --count HEAD > VC_REV
+      rm -rf .git
+    '';
   };
 
   patches = [
@@ -52,8 +60,8 @@ stdenv.mkDerivation (finalAttrs: {
     ]
     ++ lib.optionals stdenv.hostPlatform.isLinux [
       alsa-lib
-      gtk2
       libGL
+      xorg.libX11
     ];
 
   nativeBuildInputs =
@@ -83,10 +91,9 @@ stdenv.mkDerivation (finalAttrs: {
 
   makeFlags = [
     "SDLCONFIG=${SDL2}/bin/sdl2-config"
-    # git rev-list --count HEAD
-    "VC_REV=10619"
     "VC_HASH=${lib.substring 0 9 finalAttrs.src.rev}"
     "VC_BRANCH=master"
+    "HAVE_GTK2=0"
   ];
 
   buildFlags = [
@@ -94,6 +101,10 @@ stdenv.mkDerivation (finalAttrs: {
     "sw"
   ];
 
+  preConfigure = ''
+    appendToVar makeFlags "VC_REV=$(cat VC_REV)"
+  '';
+
   desktopItems = [
     (makeDesktopItem {
       name = "eduke32";
@@ -169,6 +180,8 @@ stdenv.mkDerivation (finalAttrs: {
       runHook postInstall
     '';
 
+  passthru.updateScript = unstableGitUpdater { hardcodeZeroVersion = true; };
+
   meta = {
     description = "Enhanched port of Duke Nukem 3D for various platforms";
     homepage = "http://eduke32.com";