From 7cc36b7703ccd38f392599a4b1eebf3e4586fc65 Mon Sep 17 00:00:00 2001
From: Robert Helgesson <robert@rycee.net>
Date: Mon, 24 Sep 2018 23:19:54 +0200
Subject: [PATCH] xresources: run `xrdb -merge` on change

Fixes #400
---
 modules/xresources.nix | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

diff --git a/modules/xresources.nix b/modules/xresources.nix
index 7afee8bb7..96580f575 100644
--- a/modules/xresources.nix
+++ b/modules/xresources.nix
@@ -69,10 +69,17 @@ in
   };
 
   config = mkIf (cfg.properties != null || cfg.extraConfig != "") {
-    home.file.".Xresources".text =
-      concatStringsSep "\n" ([]
-        ++ (optional (cfg.extraConfig != "") cfg.extraConfig)
-        ++ (optionals (cfg.properties != null) (mapAttrsToList formatLine cfg.properties))
-      ) + "\n";
+    home.file.".Xresources" = {
+      text =
+        concatStringsSep "\n" ([]
+          ++ (optional (cfg.extraConfig != "") cfg.extraConfig)
+          ++ (optionals (cfg.properties != null) (mapAttrsToList formatLine cfg.properties))
+        ) + "\n";
+      onChange = ''
+        if [[ -v DISPLAY ]] ; then
+          $DRY_RUN_CMD ${pkgs.xorg.xrdb}/bin/xrdb -merge $HOME/.Xresources
+        fi
+      '';
+    };
   };
 }