38 lines
1.3 KiB
Nix
38 lines
1.3 KiB
Nix
{ pkgs, config, ... }:
|
|
let
|
|
modeFile = "${config.home.homeDirectory}/.mode";
|
|
wallPapers = "${config.home.homeDirectory}/media/images/wallpapers";
|
|
randomWallpaper = pkgs.writeHaskellScript
|
|
{
|
|
name = "random-wallpaper";
|
|
imports = [ "System.Random" ];
|
|
bins = [ pkgs.coreutils pkgs.glib ];
|
|
} ''
|
|
main = do
|
|
mode <- cat "${modeFile}" |> captureTrim
|
|
(lines . decodeUtf8 -> files) <- ls ([i|${wallPapers}/#{mode}|] :: String) |> captureTrim
|
|
((files Unsafe.!!) -> file) <- getStdRandom $ randomR (0, length files - 1)
|
|
(decodeUtf8 -> current) <- gsettings "get" "org.gnome.desktop.background" "picture-uri" |> captureTrim
|
|
let new = [i|file:///${wallPapers}/#{mode}/#{file}|] :: String
|
|
when (new /= current) $ do
|
|
gsettings "set" "org.gnome.desktop.background" "picture-uri" new
|
|
gsettings "set" "org.gnome.desktop.screensaver" "picture-uri" new
|
|
'';
|
|
in
|
|
{
|
|
home.packages = [ randomWallpaper ];
|
|
systemd.user = {
|
|
services.random-wallpaper = {
|
|
Unit = { Description = "Random Wallpaper"; };
|
|
Service = {
|
|
ExecStart = "${randomWallpaper}/bin/random-wallpaper";
|
|
Type = "oneshot";
|
|
};
|
|
};
|
|
timers.random-wallpaper = {
|
|
Timer = { OnCalendar = "*:00/30:00"; OnActiveSec = 1; };
|
|
Install = { WantedBy = [ "timers.target" ]; };
|
|
};
|
|
};
|
|
|
|
}
|