gaming: lightforge

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

apps/lightforge.nix

@@ -0,0 +1,102 @@
+#./apps/lightforge.nix
+{ pkgs, lib, config, ... }:
+let
+  lightforge-unwrapped = pkgs.rustPlatform.buildRustPackage (finalAttrs: {
+    pname = "lightforge-unwrapped";
+    version = "1.0.0-beta.8";
+
+    src = pkgs.fetchFromGitHub {
+      owner = "LightforgeProject";
+      repo = "lightforge";
+      tag = "v${finalAttrs.version}";
+      hash = "sha256-iVuHYDtMPi0kaV5hK0wsCOYaBMWbqikPbOTw6M/AbfM=";
+    };
+    cargoHash = "sha256-mqePVSoavA34Q7XbPqFXbc71z+85mvCTN4J6dfPUTR0=";
+
+    # Its updater sees a Nix store path as "unknown" and offers the curl
+    # installer; this makes it say "Nix updates this" instead.
+    patches = [ ../patches/lightforge-nix-origin.patch ];
+
+    # These write under a fixed /games and watch stand-in processes; the
+    # build sandbox allows neither.
+    checkFlags = map (t: "--skip=preflight::tests::${t}") [
+      "a_pass_beside_the_client_leaves_it_running_and_touches_nothing"
+      "a_game_served_by_another_build_refuses_a_launch_beside_it"
+      "a_second_launch_goes_beside_a_running_game"
+      "quitting_the_client_beside_a_game_leaves_the_game_running"
+    ];
+
+    nativeBuildInputs = [ pkgs.pkg-config ];
+    buildInputs = with pkgs; [ udev fontconfig ];
+
+    postInstall = ''
+      install -Dm644 packaging/pro.tuxcore.Lightforge.desktop -t $out/share/applications
+      install -Dm644 packaging/pro.tuxcore.Lightforge.metainfo.xml -t $out/share/metainfo
+      cp -r packaging/icons $out/share/icons
+    '';
+
+    meta = {
+      description = "Native Linux launcher for World of Warcraft and Battle.net";
+      homepage = "https://github.com/LightforgeProject/lightforge";
+      license = lib.licenses.gpl3Plus;
+      mainProgram = "lightforge-gui";
+      platforms = [ "x86_64-linux" ];
+    };
+  });
+
+  # Lightforge downloads its own GE-Proton and runs it outside Steam's
+  # runtime, so Proton's Wine needs a regular FHS with a 32-bit side
+  # (Battle.net is 32-bit). Steam's env plus the WINE libraries Lutris lists.
+  fhs = pname: runScript: extraInstallCommands: pkgs.steam.buildRuntimeEnv {
+    inherit pname runScript extraInstallCommands;
+    inherit (lightforge-unwrapped) version meta;
+
+    extraPkgs = p: [ lightforge-unwrapped p.mangohud ];
+    extraLibraries = p: with p; [
+      fontconfig
+      freetype
+      gnutls
+      p11-kit
+      libkrb5
+      libgcrypt
+      libunwind
+      libpulseaudio
+      alsa-lib
+      dbus
+      SDL2
+      libusb1
+      libxkbcommon
+      wayland
+      libx11
+      libxext
+      libxrandr
+      libxrender
+      libxi
+      libxcursor
+      libxcomposite
+      libxfixes
+      libxinerama
+      libxxf86vm
+      libxcb
+      gst_all_1.gstreamer
+      gst_all_1.gst-plugins-base
+      gst_all_1.gst-plugins-good
+    ];
+
+    privateTmp = false;
+  };
+
+in
+{
+  config = lib.mkIf (config.networking.hostName == "FredOS-Gaming") {
+    environment.systemPackages = [
+      (fhs "lightforge-gui" "lightforge-gui" ''
+        mkdir -p $out/share
+        ln -s ${lightforge-unwrapped}/share/applications $out/share
+        ln -s ${lightforge-unwrapped}/share/icons $out/share
+      '')
+      # The CLI: `lightforge doctor`, `lightforge status`, …
+      (fhs "lightforge" "lightforge" "")
+    ];
+  };
+}

common.nix

@@ -93,6 +93,7 @@ in
     ./settings/shell.nix
     ./apps/zen.nix
     ./apps/lookout.nix
+    ./apps/lightforge.nix
 
     # Services #
     ./services/server-permissions.nix

patches/lightforge-nix-origin.patch

@@ -0,0 +1,60 @@
+diff --git a/crates/core/src/upgrade/mod.rs b/crates/core/src/upgrade/mod.rs
+index c5f3b87..c4fdd34 100644
+--- a/crates/core/src/upgrade/mod.rs
++++ b/crates/core/src/upgrade/mod.rs
+@@ -56,6 +56,9 @@ pub enum Origin {
+     Checkout { repo: PathBuf },
+     /// `cargo install`.
+     Cargo,
++    /// A Nix package, run from the store: Nix updates it with the rest of
++    /// the system or profile.
++    Nix,
+     /// None of these.
+     Unknown,
+ }
+@@ -73,6 +76,10 @@ impl Origin {
+     /// where the system's own directories are read from.
+     pub fn detect_at(exe: &Path, home: &Path, cargo_home: Option<&Path>, root: &Path) -> Self {
+         let bin_dir = exe.parent().unwrap_or(Path::new("/"));
++        // Read-only and owned by Nix, whichever profile or wrapper started it.
++        if exe.starts_with("/nix/store") {
++            return Self::Nix;
++        }
+         if bin_dir == home.join(".local/bin") {
+             return Self::Installer { bin_dir: bin_dir.to_path_buf() };
+         }
+@@ -154,6 +161,11 @@ impl Origin {
+                 )],
+                 note: "This Lightforge was installed with cargo.".to_owned(),
+             },
++            Self::Nix => say(
++                &[],
++                "Lightforge comes from Nix, which updates it: once the package or flake \
++                 input has the new version, rebuild your system or profile.",
++            ),
+             Self::Unknown => say(
+                 &[INSTALLER_COMMAND],
+                 "Lightforge cannot tell how it was installed here. The installer puts it \
+@@ -326,6 +338,10 @@ mod tests {
+         );
+         assert_eq!(detect("/home/u/.cargo/bin/lightforge-gui", &empty), Origin::Cargo);
+         assert_eq!(detect("/opt/lightforge/lightforge-gui", &empty), Origin::Unknown);
++        assert_eq!(
++            detect("/nix/store/00000000000000000000000000000000-lightforge/bin/lightforge-gui", &empty),
++            Origin::Nix
++        );
+         let _ = std::fs::remove_dir_all(&empty);
+     }
+ 
+diff --git a/crates/launcher-gui/src/tests.rs b/crates/launcher-gui/src/tests.rs
+index 79c7465..e089466 100644
+--- a/crates/launcher-gui/src/tests.rs
++++ b/crates/launcher-gui/src/tests.rs
+@@ -1190,6 +1190,7 @@ fn the_update_card_draws_for_every_route_and_stage() {
+         Origin::Deb,
+         Origin::Copr { atomic: true },
+         Origin::Checkout { repo: "/home/u/lightforge".into() },
++        Origin::Nix,
+         Origin::Unknown,
+     ];
+     let stages = [