godot-export-templates: init at 3.2.3

pkgs/development/tools/godot/export-templates.nix

···
+{ godot, lib }:
+
+# https://docs.godotengine.org/en/stable/development/compiling/compiling_for_x11.html#building-export-templates
+godot.overrideAttrs (oldAttrs: rec {
+  pname = "godot-export-templates";
+  sconsFlags = "target=release platform=x11 tools=no";
+  installPhase = ''
+    # The godot export command expects the export templates at
+    # .../share/godot/templates/3.2.3.stable with 3.2.3 being the godot version.
+    mkdir -p "$out/share/godot/templates/${oldAttrs.version}.stable"
+    cp bin/godot.x11.opt.64 $out/share/godot/templates/${oldAttrs.version}.stable/linux_x11_64_release
+  '';
+  outputs = [ "out" ];
+  meta.description =
+    "Free and Open Source 2D and 3D game engine (export templates)";
+  meta.maintainers = with lib.maintainers; [ twey jojosch ];
+})

pkgs/top-level/all-packages.nix

···
 
   godot = callPackage ../development/tools/godot {};
 
+  godot-export-templates = callPackage ../development/tools/godot/export-templates.nix { };
+
   godot-headless = callPackage ../development/tools/godot/headless.nix { };
 
   godot-server = callPackage ../development/tools/godot/server.nix { };