Pin minecraft server to 1.18.1

pkgs/minecraft-server/1_18_1.nix

@@ -0,0 +1,38 @@
+{ lib, stdenv, fetchurl, nixosTests, jre_headless }:
+stdenv.mkDerivation {
+  pname = "minecraft-server";
+  version = "1.18.1";
+
+  src = fetchurl {
+    url = "https://launcher.mojang.com/v1/objects/125e5adf40c659fd3bce3e66e67a16bb49ecc1b9/server.jar";
+    # sha1 because that comes from mojang via api
+    sha1 = "125e5adf40c659fd3bce3e66e67a16bb49ecc1b9";
+  };
+
+  preferLocalBuild = true;
+
+  installPhase = ''
+    mkdir -p $out/bin $out/lib/minecraft
+    cp -v $src $out/lib/minecraft/server.jar
+    cat > $out/bin/minecraft-server << EOF
+    #!/bin/sh
+    exec ${jre_headless}/bin/java \$@ -jar $out/lib/minecraft/server.jar nogui
+    EOF
+    chmod +x $out/bin/minecraft-server
+  '';
+
+  dontUnpack = true;
+
+  passthru = {
+    tests = { inherit (nixosTests) minecraft-server; };
+    updateScript = ./update.sh;
+  };
+
+  meta = with lib; {
+    description = "Minecraft Server";
+    homepage = "https://minecraft.net";
+    license = licenses.unfreeRedistributable;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ thoughtpolice tomberek costrouc ];
+  };
+}

services/minecraft/default.nix

@@ -12,7 +12,7 @@
     enable = true;
     eula = true;
 
-    package = pkgs.callPackage ../../pkgs/minecraft-server-fabric { inherit (pkgs.unstable) minecraft-server; };
+    package = pkgs.callPackage ../../pkgs/minecraft-server-fabric { minecraft-server = (pkgs.callPackage ../../pkgs/minecraft-server/1_18_1.nix { }); };
     jvmOpts = "-Xms10G -Xmx10G -XX:+UnlockExperimentalVMOptions -XX:+UseZGC  -XX:+DisableExplicitGC  -XX:+AlwaysPreTouch -XX:+ParallelRefProcEnabled";
 
     serverProperties = {