add nix-shell template (shell.nix)

Author: bailuk

.gitignore

@@ -57,6 +57,9 @@ nb-configuration.xml
 ## OS X
 .DS_Store
 
+## nix-shell
+/shell.nix
+
 # Development
 todo/
 /ci/qemu/

doc/shell.nix

@@ -0,0 +1,22 @@
+# Development environment with nix-shell
+{ pkgs ? import <nixpkgs> {}
+}:
+pkgs.mkShell {
+    name="java-gtk";
+    buildInputs = [
+        pkgs.git
+        pkgs.jdk21_headless # Non headless is linked against gtk3 and does therefore not work
+        pkgs.gtk4
+    ];
+    shellHook = ''
+        LD_LIBRARY_PATH=${pkgs.gtk4.outPath}/lib
+        LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${pkgs.glib.out.outPath}/lib
+        LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${pkgs.gdk-pixbuf.outPath}/lib
+        LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${pkgs.cairo.outPath}/lib
+        LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${pkgs.pango.out.outPath}/lib
+        LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:${pkgs.libadwaita.outPath}/lib
+        export LD_LIBRARY_PATH
+        echo "https://github.com/bailuk/java-gtk"
+        echo "./gradlew generate && ./gradlew build && ./gradlew run"
+    '';
+}