Swayscript: Add mpvpaper reload support.

config/Wallpaper.nix

@@ -0,0 +1,13 @@
+{ config, lib, pkgs, ... }: let
+  cfg = config.module.wallpaper;
+in {
+  config = lib.mkMerge [
+    (lib.mkIf cfg.video {
+      environment.systemPackages = [
+        (pkgs.writeShellScriptBin "mpvpaper-sway" ''
+          mpvpaper -o 'no-audio --loop-file --panscan=1' '*' ${cfg.videoPath}
+        '')
+      ];
+    })
+  ];
+}

home/file/sway/default.nix

@@ -246,6 +246,6 @@ in
       include /etc/sway/config.d/*
     ''
     + builtins.readFile swayRc
-    + lib.concatStringsSep "\n" config.module.sway.extraConfig
+    + lib.optionalString config.module.wallpaper.video "\nexec mpvpaper-sway"
-    + lib.optionalString config.module.wallpaper.video "\nexec mpvpaper -o 'no-audio --loop-file --panscan=1' '*' ${config.module.wallpaper.videoPath}";
+    + lib.concatStringsSep "\n" config.module.sway.extraConfig;
 }

package/swayscript/script/Reload.sh

@@ -4,6 +4,8 @@ function reload() {
 	re() {
 		# Sway.
 		swaymsg reload
+		pkill mpvpaper
+		mpvpaper-sway
 
 		# Waybar.
 		pkill waybar