From 15c041208098664c52620c8ec00b263eca113db1 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Benjamin=20B=C3=A4dorf?= <hello@benjaminbaedorf.eu>
Date: Sat, 11 Dec 2021 21:08:20 +0100
Subject: [PATCH] Add looking glass for VMs, switch from scream-ivshmem to
 qemu-pulse

---
 modules/gaming/default.nix                    |  2 +-
 modules/virtualisation/default.nix            | 17 +++++++++---
 ...e.service.nix => scream-pulse.service.nix} |  0
 overlays/overrides.nix                        |  4 ++-
 pkgs/default.nix                              | 27 ++++++++++---------
 pkgs/lgcl.nix                                 |  3 +++
 6 files changed, 35 insertions(+), 18 deletions(-)
 rename modules/virtualisation/{scream-ivshmem-pulse.service.nix => scream-pulse.service.nix} (100%)
 create mode 100644 pkgs/lgcl.nix

diff --git a/modules/gaming/default.nix b/modules/gaming/default.nix
index b9616e63..00939e82 100644
--- a/modules/gaming/default.nix
+++ b/modules/gaming/default.nix
@@ -20,7 +20,7 @@ in
         playonlinux
         godot
         obs-studio
-        obs-wlrobs
+        obs-studio-plugins.wlrobs
       ];
     };
   };
diff --git a/modules/virtualisation/default.nix b/modules/virtualisation/default.nix
index c97db9d2..4d588622 100644
--- a/modules/virtualisation/default.nix
+++ b/modules/virtualisation/default.nix
@@ -3,6 +3,8 @@ with lib;
 let
   psCfg = config.pub-solar;
   cfg = config.pub-solar.virtualisation;
+  doesGaming = config.pub-solar.gaming.enable;
+  extraObsPlugins = if doesGaming then [ pkgs.obs-studio-plugins.looking-glass-obs ] else [ ];
 in
 {
   options.pub-solar.virtualisation = {
@@ -32,17 +34,26 @@ in
       virt-manager
       python38Packages.libvirt
       gvfs
-      scream
       edk2
       OVMF
       win-virtio
+      looking-glass-client
+      lgcl
     ];
 
     home-manager = with pkgs; pkgs.lib.setAttrByPath [ "users" psCfg.user.name ] {
       xdg.dataFile."libvirt/.keep".text = "# this file is here to generate the directory";
+      home.packages = extraObsPlugins;
     };
 
-    systemd.tmpfiles.rules = [ "f  /dev/shm/scream-ivshmem  0660  ${psCfg.user.name}  kvm" ];
-    systemd.user.services.scream-ivshmem-pulse = import ./scream-ivshmem-pulse.service.nix pkgs;
+    systemd.tmpfiles.rules = [
+      "f  /dev/shm/looking-glass  0660  ${psCfg.user.name}  kvm"
+    ];
+    networking.bridges.virbr1.interfaces = [ ];
+    networking.interfaces.virbr1 = {
+      ipv4.addresses = [
+        { address = "192.168.123.1"; prefixLength = 24; }
+      ];
+    };
   };
 }
diff --git a/modules/virtualisation/scream-ivshmem-pulse.service.nix b/modules/virtualisation/scream-pulse.service.nix
similarity index 100%
rename from modules/virtualisation/scream-ivshmem-pulse.service.nix
rename to modules/virtualisation/scream-pulse.service.nix
diff --git a/overlays/overrides.nix b/overlays/overrides.nix
index b2049d20..dc2189bc 100644
--- a/overlays/overrides.nix
+++ b/overlays/overrides.nix
@@ -16,12 +16,14 @@ channels: final: prev: {
     qutebrowser
     signal-desktop
     tdesktop
-    obs-studio
     starship
     deploy-rs
     xdg-desktop-portal
     xdg-desktop-portal-gtk
     xdg-desktop-portal-wlr
+    obs-studio
+    obs-studio-plugins
+    looking-glass-client
     ;
 
   haskellPackages = prev.haskellPackages.override
diff --git a/pkgs/default.nix b/pkgs/default.nix
index a096f93e..312e685f 100644
--- a/pkgs/default.nix
+++ b/pkgs/default.nix
@@ -1,18 +1,19 @@
 final: prev:
-  with final; {
+with final; {
   # keep sources this first
   sources = prev.callPackage (import ./_sources/generated.nix) { };
   # then, call packages with `final.callPackage`
-    import-gtk-settings = writeShellScriptBin "import-gtk-settings" (import ./import-gtk-settings.nix final);
-    mailto-mutt = writeShellScriptBin "mailto-mutt" (import ./mailto-mutt.nix final);
-    mopidy-jellyfin = import ./mopidy-jellyfin.nix final;
-    mu = writeShellScriptBin "mu" (import ./mu.nix final);
-    psos = writeShellScriptBin "psos" (import ./psos.nix final);
-    s = writeShellScriptBin "s" (import ./s.nix final);
-    sway-launcher = writeScriptBin "sway-launcher" (import ./sway-launcher.nix final);
-    sway-service = writeShellScriptBin "sway-service" (import ./sway-service.nix final);
-    swaylock-bg = writeScriptBin "swaylock-bg" (import ./swaylock-bg.nix final);
-    toggle-kbd-layout = writeShellScriptBin "toggle-kbd-layout" (import ./toggle-kbd-layout.nix final);
-    uhk-agent = import ./uhk-agent.nix final;
-    wcwd = writeShellScriptBin "wcwd" (import ./wcwd.nix final);
+  import-gtk-settings = writeShellScriptBin "import-gtk-settings" (import ./import-gtk-settings.nix final);
+  lgcl = writeShellScriptBin "lgcl" (import ./lgcl.nix final);
+  mailto-mutt = writeShellScriptBin "mailto-mutt" (import ./mailto-mutt.nix final);
+  mopidy-jellyfin = import ./mopidy-jellyfin.nix final;
+  mu = writeShellScriptBin "mu" (import ./mu.nix final);
+  psos = writeShellScriptBin "psos" (import ./psos.nix final);
+  s = writeShellScriptBin "s" (import ./s.nix final);
+  sway-launcher = writeScriptBin "sway-launcher" (import ./sway-launcher.nix final);
+  sway-service = writeShellScriptBin "sway-service" (import ./sway-service.nix final);
+  swaylock-bg = writeScriptBin "swaylock-bg" (import ./swaylock-bg.nix final);
+  toggle-kbd-layout = writeShellScriptBin "toggle-kbd-layout" (import ./toggle-kbd-layout.nix final);
+  uhk-agent = import ./uhk-agent.nix final;
+  wcwd = writeShellScriptBin "wcwd" (import ./wcwd.nix final);
 }
diff --git a/pkgs/lgcl.nix b/pkgs/lgcl.nix
new file mode 100644
index 00000000..4ef2dac9
--- /dev/null
+++ b/pkgs/lgcl.nix
@@ -0,0 +1,3 @@
+self: with self; ''
+  ${self.looking-glass-client}/bin/looking-glass-client -f /dev/shm/looking-glass input:ignoreWindowsKeys=yes input:grabKeyboardOnFocus=no
+''