nixos-configs/modules/greetd/default.nix

99 lines
2.6 KiB
Nix

{
lib,
pkgs,
config,
...
}: let
# Nix stuff
optionals = lib.lists.optionals;
isNvidia = config.hardware.nvidia.modesetting.enable;
vars = config.services.device-vars;
# Executables' paths
regreetBin = "${lib.getExe config.programs.regreet.package}";
hyprBin = "${config.home-manager.users.${vars.username}
.wayland.windowManager.hyprland.finalPackage}/bin";
# Show Regreet on all monitors
dupeMonitors = pkgs.writeShellScriptBin "dupeMonitors" ''
names=($(${hyprBin}/hyprctl -j monitors | ${pkgs.jq}/bin/jq -r '.[] .name'))
main="${vars.mainMonitor}"
if [[ $(echo "$main") == "null" ]]; then
main="''${names[0]}"
fi
for (( i=0; i<''${#names[@]}; i++ )); do
if [[ ''${names[$i]} != "$main" ]]; then
${hyprBin}/hyprctl keyword monitor ''${names[$i]},preferred,auto,1,mirror,"$main"
fi
done
'';
# Check if user wants Regreet only on main monitor
setupMonitors = if vars.mainMonitor != null && !vars.greetdDupe
then "${hyprBin}/hyprctl dispatch focusmonitor ${vars.mainMonitor}"
else "${dupeMonitors}/bin/dupeMonitors";
# Get css for regreet
style = pkgs.writeText "style.css" ''${builtins.readFile ./style.css}'';
# Setup Hyprland as regreet's compositor
hyprConf =
pkgs.writeText "greetd-hypr-config"
(lib.strings.concatStrings ((optionals isNvidia [
"env = LIBVA_DRIVER_NAME,nvidia\n"
"env = XDG_SESSION_TYPE,wayland\n"
"env = GBM_BACKEND,nvidia-drm\n"
"env = __GLX_VENDOR_LIBRARY_NAME,nvidia\n"
"env = WLR_NO_HARDWARE_CURSORS,1\n"
])
++ [
"exec-once = ${setupMonitors} &&"
" sleep 1; swww init --no-cache &&"
" swww img -t none ${pkgs.dracula-theme}/wallpapers/waves.png\n"
"${builtins.readFile ./hyprland.conf}\n"
"exec-once = ${regreetBin} -s ${style};"
" ${hyprBin}/hyprctl dispatch exit"
]));
in {
users.users.greeter = {
packages = with pkgs; [
dracula-theme
flat-remix-icon-theme
swww
gtk3
glib
];
};
# See overlay
programs.regreet = {
enable = true;
settings = {
GTK = {
cursor_theme_name = "Dracula-cursors";
font_name = "Sans Serif";
icon_theme_name = "Flat-Remix-Violet-Dark";
theme_name = "Dracula";
};
};
};
services.greetd = {
enable = true;
settings = {
default_session = {
command = "${hyprBin}/Hyprland --config ${hyprConf}";
user = "greeter";
};
};
};
# unlock GPG keyring on login
services.gnome.gnome-keyring.enable = true;
security.pam.services.greetd.enableGnomeKeyring = true;
}