pkgs: add mcaselector

pkgs/mcaselector.nix

@@ -0,0 +1,42 @@
+{ stdenv
+, lib
+, fetchurl
+, jre
+, gtk3
+, makeWrapper
+, wrapGAppsHook
+}:
+
+stdenv.mkDerivation (self: rec {
+  pname = "mcaselector";
+  version = "2.1";
+
+  src = fetchurl {
+    url = "https://github.com/Querz/mcaselector/releases/download/${version}/mcaselector-${version}.jar";
+    sha256 = "sha256-6byZ3kH+iLAv2NZ2MzMvwlJ/RFNk4jl4RnT2S0Ctu90=";
+  };
+
+  dontUnpack = true;
+
+  nativeBuildInputs = [
+    gtk3
+    makeWrapper
+    wrapGAppsHook
+  ];
+
+  installPhase = ''
+    mkdir -pv $out/share/java $out/bin
+    cp ${src} $out/share/java/${self.name}.jar
+
+    makeWrapper ${jre}/bin/java $out/bin/mcaselector \
+      --add-flags "-jar $out/share/java/${self.name}.jar"
+  '';
+
+  meta = with lib; {
+    homepage = "https://github.com/Querz/mcaselector";
+    description = "A tool to select chunks from Minecraft worlds for deletion or export. ";
+    license = licenses.mit;
+    platforms = platforms.all; # Uses a 'universal' jar
+    maintainers = with maintainers; [ infinidoge ];
+  };
+})