nixos/lazygit: init

Update nixos/modules/programs/lazygit.nix

Co-authored-by: Aleksana <alexander.huang.y@gmail.com>

Update nixos/modules/programs/lazygit.nix

Co-authored-by: Aleksana <alexander.huang.y@gmail.com>

nixos/modules/module-list.nix

@@ -212,6 +212,7 @@
   ./programs/kbdlight.nix
   ./programs/kclock.nix
   ./programs/kdeconnect.nix
+  ./programs/lazygit.nix
   ./programs/less.nix
   ./programs/liboping.nix
   ./programs/light.nix

nixos/modules/programs/lazygit.nix

@@ -0,0 +1,37 @@
+{ config, lib, pkgs, ... }:
+
+let
+  cfg = config.programs.lazygit;
+
+  settingsFormat = pkgs.formats.yaml { };
+in
+{
+  options.programs.lazygit = {
+    enable = lib.mkEnableOption "lazygit, a simple terminal UI for git commands";
+
+    package = lib.mkPackageOption pkgs "lazygit" { };
+
+    settings = lib.mkOption {
+      inherit (settingsFormat) type;
+      default = { };
+      description = ''
+        Lazygit configuration.
+
+        See https://github.com/jesseduffield/lazygit/blob/master/docs/Config.md for documentation.
+      '';
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    environment = {
+      systemPackages = [ cfg.package ];
+      etc = lib.mkIf (cfg.settings != { }) {
+        "xdg/lazygit/config.yml".source = settingsFormat.generate "lazygit-config.yml" cfg.settings;
+      };
+    };
+  };
+
+  meta = {
+    maintainers = with lib.maintainers; [ linsui ];
+  };
+}