home-manager/modules/services/dwm-status.nix
Robert Helgesson 5f433eb164
Move platform check into modules
Before, loading a module would be guarded by an optional platform
condition. This made it possible to avoid loading and evaluating a
module if it did not support the host platform.

Unfortunately, this made it impossible to share a single configuration
between GNU/Linux and Darwin hosts, which some wish to do.

This removes the conditional load and instead inserts host platform
assertions in the modules that are platform specific.

Fixes #1906
2021-07-18 20:43:22 +02:00

73 lines
1.7 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.dwm-status;
jsonFormat = pkgs.formats.json { };
features = [ "audio" "backlight" "battery" "cpu_load" "network" "time" ];
finalConfig = { inherit (cfg) order; } // cfg.extraConfig;
configFile = jsonFormat.generate "dwm-status.json" finalConfig;
in {
options = {
services.dwm-status = {
enable = mkEnableOption "dwm-status user service";
package = mkOption {
type = types.package;
default = pkgs.dwm-status;
defaultText = literalExample "pkgs.dwm-status";
example = "pkgs.dwm-status.override { enableAlsaUtils = false; }";
description = "Which dwm-status package to use.";
};
order = mkOption {
type = types.listOf (types.enum features);
description = "List of enabled features in order.";
};
extraConfig = mkOption {
type = jsonFormat.type;
default = { };
example = literalExample ''
{
separator = "#";
battery = {
notifier_levels = [ 2 5 10 15 20 ];
};
time = {
format = "%H:%M";
};
}
'';
description = "Extra config of dwm-status.";
};
};
};
config = mkIf cfg.enable {
assertions = [
(lib.hm.assertions.assertPlatform "services.dwm-status" pkgs
lib.platforms.linux)
];
systemd.user.services.dwm-status = {
Unit = {
Description = "DWM status service";
PartOf = [ "graphical-session.target" ];
};
Install = { WantedBy = [ "graphical-session.target" ]; };
Service = { ExecStart = "${cfg.package}/bin/dwm-status ${configFile}"; };
};
};
}