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|
# Upower daemon.
{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.upower;
in
{
###### interface
options = {
services.upower = {
enable = mkOption {
type = types.bool;
default = false;
description = ''
Whether to enable Upower, a DBus service that provides power
management support to applications.
'';
};
package = mkOption {
type = types.package;
default = pkgs.upower;
defaultText = "pkgs.upower";
example = lib.literalExample "pkgs.upower";
description = ''
Which upower package to use.
'';
};
};
};
###### implementation
config = mkIf cfg.enable {
environment.systemPackages = [ cfg.package ];
services.dbus.packages = [ cfg.package ];
services.udev.packages = [ cfg.package ];
systemd.services.upower =
{ description = "Power Management Daemon";
path = [ pkgs.glib.out ]; # needed for gdbus
serviceConfig =
{ Type = "dbus";
BusName = "org.freedesktop.UPower";
ExecStart = "@${cfg.package}/libexec/upowerd upowerd";
};
};
system.activationScripts.upower =
''
mkdir -m 0755 -p /var/lib/upower
'';
# The upower daemon seems to get stuck after doing a suspend
# (i.e. subsequent suspend requests will say "Sleep has already
# been requested and is pending"). So as a workaround, restart
# the daemon.
powerManagement.resumeCommands =
''
${config.systemd.package}/bin/systemctl try-restart upower
'';
};
}
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