This neoforge server isn't freaking working

2024-09-17 21:45:44 -04:00 · 2024-09-17 21:45:44 -04:00 · c3ee9a15ed
commit c3ee9a15ed
parent c240c3f00d
15 changed files with 3445 additions and 11 deletions
--- a/pkgs/forge-servers/derivation.nix
+++ b/pkgs/forge-servers/derivation.nix
@ -0,0 +1,148 @@
+# based on:
+# - https://github.com/Faeranne/nix-minecraft/blob/f4e4514f1d65b6a19704eab85070741e40c1d272/pkgs/forge-servers/derivation.nix
+# - https://github.com/Infinidoge/nix-minecraft/blob/ab4790259bf8ed20f4417de5a0e5ee592094c7c3/pkgs/build-support/mkTextileLoader.nix
+#
+# Locks (lock_game.json, lock_launcher.json, lock_libraries.json)
+# are copied from https://github.com/Faeranne/nix-minecraft/tree/f4e4514f1d65b6a19704eab85070741e40c1d272/pkgs/forge-servers
+#
+# Locks are modified to have only one version of Forge (1.20.1-47.3.1)
+# I didn't want to deal with many versions of Forge
+{ lib
+, stdenvNoCC
+, fetchurl
+, gameVersion
+, loaderVersion
+, jre_headless
+, jq
+}:
+let
+  minecraftInfo = (lib.importJSON ./lock_game.json).${gameVersion};
+
+  forge-installer = "forge-${gameVersion}-${loaderVersion}-installer";
+
+  mappingsInfo = minecraftInfo.mappings;
+  mappings = fetchurl {
+    name = "minecraft-mappings";
+    version = "${gameVersion}";
+    inherit (mappingsInfo) sha1 url;
+  };
+
+  vanillaInfo = minecraftInfo.server;
+  vanilla = fetchurl {
+    name = "vanilla-server";
+    version = "${gameVersion}";
+    inherit (vanillaInfo) sha1 url;
+  };
+
+  loader = (lib.importJSON ./lock_launcher.json).${gameVersion}.${loaderVersion};
+  libraries = minecraftInfo.libraries;
+  libraries_lock = lib.importJSON ./lock_libraries.json;
+  fetchedLibraries = lib.forEach libraries (l:
+    let
+      library = libraries_lock.${l};
+    in
+    fetchurl {
+      inherit (library) url sha1;
+    }
+  );
+in
+stdenvNoCC.mkDerivation {
+  pname = "forge-loader";
+  version = "${gameVersion}-${loaderVersion}";
+
+  libraries = fetchedLibraries;
+
+  src = fetchurl {
+    name = forge-installer;
+    inherit (loader) url;
+    hash = loader.md5;
+  };
+
+  preferLocalBuild = true;
+
+  installPhase = if (loader.type == "installer") then (
+  let
+    libraries_path = lib.concatStringsSep " " (lib.forEach libraries (l: libraries_lock.${l}.path));
+  in
+  ''
+    LIB_PATHS=(${libraries_path})
+
+    mkdir $out
+
+    for i in $libraries; do
+      NIX_LIB=$(basename $i)
+      NIX_LIB_NAME="''${NIX_LIB:33}"
+
+      for l in ''${!LIB_PATHS[@]}; do
+        LIB="''${LIB_PATHS[$l]}"
+        LIB_NAME=$(basename $LIB)
+
+        if [[ $LIB_NAME == $NIX_LIB_NAME ]]; then
+          mkdir -p "$out/libraries/$(dirname $LIB)"
+          ln -s $i $out/libraries/$LIB
+
+          echo Linking library: $LIB_NAME
+
+          break
+        fi
+      done
+    done
+
+    MOJMAP_DIR_NAME=$(basename $out/libraries/de/oceanlabs/mcp/mcp_config/${gameVersion}-*)
+    echo $MOJMAP_DIR_NAME
+    MOJMAP_DIR=$out/libraries/net/minecraft/server/$MOJMAP_DIR_NAME
+    mkdir -p "$MOJMAP_DIR"
+
+    ln -s ${mappings} $MOJMAP_DIR/server-$MOJMAP_DIR_NAME-mappings.txt
+
+    MINECRAFT_LIB=$out/libraries/net/minecraft/server/${gameVersion}
+    mkdir -p "$MINECRAFT_LIB"
+
+    ln -s ${vanilla} $MINECRAFT_LIB/server-${gameVersion}.jar
+
+    cp $src $out/forge-installer.jar
+
+    echo Patching forge installer...
+    pushd $out
+
+    ${jre_headless}/bin/jar xf $out/forge-installer.jar install_profile.json
+
+    mv $out/install_profile.json $out/install_profile_original.json
+
+    ${lib.getExe jq} 'del(.processors[] | select(.args[1]=="DOWNLOAD_MOJMAPS"))' $out/install_profile_original.json > $out/install_profile.json
+    mkdir -p $out/META-INF
+    touch $out/META-INF/FORGE.RSA
+
+    ${jre_headless}/bin/jar uf $out/forge-installer.jar install_profile.json META-INF/FORGE.RSA
+
+    popd
+
+    rm $out/install_profile.json
+    rm $out/install_profile_original.json
+    rm -rf $out/META-INF
+
+    echo Running installer...
+    ${jre_headless}/bin/java -jar $out/forge-installer.jar --offline --installServer $out
+
+    echo Cleaning up...
+
+    rm $out/run.bat
+    rm $out/run.sh
+    rm $out/user_jvm_args.txt
+    rm $out/forge-installer.jar
+
+    substituteInPlace $out/libraries/net/minecraftforge/forge/1.20.1-47.3.1/unix_args.txt \
+      --replace libraries $out/libraries
+  '') else throw "Cannot work with other types of packaging than installer!";
+
+  dontUnpack = true;
+
+  meta = with lib; {
+    description = "Minecraft Server";
+    homepage = "https://minecraft.net";
+    license = licenses.unfreeRedistributable;
+    platforms = platforms.unix;
+    maintainers = with maintainers; [ infinidoge ];
+    mainProgram = "minecraft-server";
+  };
+}