1 files changed, 44 insertions, 0 deletions
diff --git a/pkgs/util/default.nix b/pkgs/util/default.nix
new file mode 100644
index 0000000..9dbe067
--- /dev/null
+++ b/pkgs/util/default.nix
@@ -0,0 +1,44 @@
+{pkgs ? import <nixpkgs> {system = "x86_64-linux";}, ...}: let
+  lsdbus-src = pkgs.fetchFromGitHub {
+    owner = "kmarkus";
+    repo = "lsdbus";
+    rev = "6f80930248110927d1f898966544eec202ea3550";
+    hash = "sha256-N/VCjrI7RolHV0ya1U+YTLGAWv8+WNz2nobaGxdR1wQ=";
+  };
+
+  lsdbus = pkgs.stdenv.mkDerivation {
+    pname = "lsdbus";
+    version = "scm-3";
+    src = lsdbus-src;
+    nativeBuildInputs = with pkgs; [cmake gnumake pkg-config systemdLibs minixml lua5_4];
+    cmakeFlags = ["-DCONFIG_LUA_VER=5.4"];
+  };
+
+  lua =
+    pkgs.runCommand "lua-env" {
+      buildInputs = with pkgs; [lua5_4];
+      nativeBuildInputs = [pkgs.makeWrapper];
+    } ''
+      mkdir -p $out/bin
+      install -D -m 755 ${pkgs.lua5_4}/bin/lua $out/bin/lua
+      wrapProgram $out/bin/lua \
+        --prefix LUA_PATH \; '?.lua;?/init.lua' \
+        --prefix LUA_PATH \; '${lsdbus}/share/lua/5.4/?.lua' \
+        --prefix LUA_PATH \; '${lsdbus}/share/lua/5.4/?/init.lua' \
+        --prefix LUA_CPATH \; '${lsdbus}/lib/lua/5.4/?.so'
+    '';
+in
+  pkgs.stdenv.mkDerivation {
+    pname = "util.lua";
+    version = "1.0.0";
+    src = ./.;
+    buildInputs = [pkgs.brightnessctl];
+    nativeBuildInputs = [pkgs.makeWrapper];
+
+    buildPhase = ''
+      mkdir -p $out/{bin,lib}
+      substitute $src/util.lua $out/bin/util.lua --replace-fail @lua@ ${lua} --replace-fail @out@ $out
+      cp -r $src/util $out/lib/util
+      chmod +x $out/bin/util.lua
+    '';
+  }