home-manager/modules/services/cbatticon.nix
Nick Hu 4f70f49cec
Add systemd target tray.target (#2027)
This target is for systemd units that require a system tray to be
running.

This also fixes taffybar.service: previously, systemd would consider it
to be active (running) before it was actually ready to accept tray
icons.
2021-05-22 03:15:12 +01:00

120 lines
3.3 KiB
Nix

{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.cbatticon;
package = pkgs.cbatticon;
makeCommand = commandName: commandArg:
optional (commandArg != null)
(let cmd = pkgs.writeShellScript commandName commandArg;
in "--${commandName} ${cmd}");
commandLine = concatStringsSep " " ([ "${package}/bin/cbatticon" ]
++ makeCommand "command-critical-level" cfg.commandCriticalLevel
++ makeCommand "command-left-click" cfg.commandLeftClick
++ optional (cfg.iconType != null) "--icon-type ${cfg.iconType}"
++ optional (cfg.lowLevelPercent != null)
"--low-level ${toString cfg.lowLevelPercent}"
++ optional (cfg.criticalLevelPercent != null)
"--critical-level ${toString cfg.criticalLevelPercent}"
++ optional (cfg.updateIntervalSeconds != null)
"--update-interval ${toString cfg.updateIntervalSeconds}"
++ optional (cfg.hideNotification != null && cfg.hideNotification)
"--hide-notification");
in {
meta.maintainers = [ maintainers.pmiddend ];
options = {
services.cbatticon = {
enable = mkEnableOption "cbatticon";
commandCriticalLevel = mkOption {
type = types.nullOr types.lines;
default = null;
example = ''
notify-send "battery critical!"
'';
description = ''
Command to execute when the critical battery level is reached.
'';
};
commandLeftClick = mkOption {
type = types.nullOr types.lines;
default = null;
description = ''
Command to execute when left clicking on the tray icon.
'';
};
iconType = mkOption {
type =
types.nullOr (types.enum [ "standard" "notification" "symbolic" ]);
default = null;
example = "symbolic";
description = "Icon type to display in the system tray.";
};
lowLevelPercent = mkOption {
type = types.nullOr (types.ints.between 0 100);
default = null;
example = 20;
description = ''
Low level percentage of the battery in percent (without the
percent symbol).
'';
};
criticalLevelPercent = mkOption {
type = types.nullOr (types.ints.between 0 100);
default = null;
example = 5;
description = ''
Critical level percentage of the battery in percent (without
the percent symbol).
'';
};
updateIntervalSeconds = mkOption {
type = types.nullOr types.ints.positive;
default = null;
example = 5;
description = ''
Number of seconds between updates of the battery information.
'';
};
hideNotification = mkOption {
type = types.nullOr types.bool;
default = null;
description = "Hide the notification popups.";
};
};
};
config = mkIf cfg.enable {
home.packages = [ package ];
systemd.user.services.cbatticon = {
Unit = {
Description = "cbatticon system tray battery icon";
Requires = [ "tray.target" ];
After = [ "graphical-session-pre.target" "tray.target" ];
PartOf = [ "graphical-session.target" ];
};
Install = { WantedBy = [ "graphical-session.target" ]; };
Service = {
ExecStart = commandLine;
Restart = "on-abort";
};
};
};
}