depot/third_party/nixpkgs/nixos/modules/services/system/automatic-timezoned.nix

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{ config, lib, pkgs, ... }:
with lib;
let
cfg = config.services.automatic-timezoned;
in
{
options = {
services.automatic-timezoned = {
enable = mkOption {
type = types.bool;
default = false;
description = mdDoc ''
Enable `automatic-timezoned`, simple daemon for keeping the system
timezone up-to-date based on the current location. It uses geoclue2 to
determine the current location and systemd-timedated to actually set
the timezone.
'';
};
package = mkOption {
type = types.package;
default = pkgs.automatic-timezoned;
defaultText = literalExpression "pkgs.automatic-timezoned";
description = mdDoc ''
Which `automatic-timezoned` package to use.
'';
};
};
};
config = mkIf cfg.enable {
security.polkit.extraConfig = ''
polkit.addRule(function(action, subject) {
if (action.id == "org.freedesktop.timedate1.set-timezone"
&& subject.user == "automatic-timezoned") {
return polkit.Result.YES;
}
});
'';
services.geoclue2 = {
enable = true;
appConfig.automatic-timezoned = {
isAllowed = true;
isSystem = true;
users = [ (toString config.ids.uids.automatic-timezoned) ];
};
};
systemd.services = {
automatic-timezoned = {
description = "Automatically update system timezone based on location";
requires = [ "automatic-timezoned-geoclue-agent.service" ];
after = [ "automatic-timezoned-geoclue-agent.service" ];
serviceConfig = {
Type = "exec";
User = "automatic-timezoned";
ExecStart = "${cfg.package}/bin/automatic-timezoned --zoneinfo-path=${pkgs.tzdata}/share/zoneinfo/zone1970.tab";
};
wantedBy = [ "default.target" ];
};
automatic-timezoned-geoclue-agent = {
description = "Geoclue agent for automatic-timezoned";
requires = [ "geoclue.service" ];
after = [ "geoclue.service" ];
serviceConfig = {
Type = "exec";
User = "automatic-timezoned";
ExecStart = "${pkgs.geoclue2-with-demo-agent}/libexec/geoclue-2.0/demos/agent";
Restart = "on-failure";
PrivateTmp = true;
};
wantedBy = [ "default.target" ];
};
};
users = {
users.automatic-timezoned = {
description = "automatic-timezoned";
uid = config.ids.uids.automatic-timezoned;
group = "automatic-timezoned";
};
groups.automatic-timezoned = {
gid = config.ids.gids.automatic-timezoned;
};
};
};
}