nixpkgs/nixos/modules/services/misc/tzupdate.nix
Silvan Mosberger 374e6bcc40 treewide: Format all Nix files
Format all Nix files using the officially approved formatter,
making the CI check introduced in the previous commit succeed:

  nix-build ci -A fmt.check

This is the next step of the of the [implementation](https://github.com/NixOS/nixfmt/issues/153)
of the accepted [RFC 166](https://github.com/NixOS/rfcs/pull/166).

This commit will lead to merge conflicts for a number of PRs,
up to an estimated ~1100 (~33%) among the PRs with activity in the past 2
months, but that should be lower than what it would be without the previous
[partial treewide format](https://github.com/NixOS/nixpkgs/pull/322537).

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If you run into any problems regarding any of this, please reach out to the
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pinging @NixOS/nix-formatting.
2025-04-01 20:10:43 +02:00

52 lines
1.4 KiB
Nix

{
config,
lib,
pkgs,
...
}:
let
cfg = config.services.tzupdate;
in
{
options.services.tzupdate = {
enable = lib.mkOption {
type = lib.types.bool;
default = false;
description = ''
Enable the tzupdate timezone updating service. This provides
a one-shot service which can be activated with systemctl to
update the timezone.
'';
};
};
config = lib.mkIf cfg.enable {
# We need to have imperative time zone management for this to work.
# This will give users an error if they have set an explicit time
# zone, which is better than silently overriding it.
time.timeZone = null;
# We provide a one-shot service which can be manually run. We could
# provide a service that runs on startup, but it's tricky to get
# a service to run after you have *internet* access.
systemd.services.tzupdate = {
description = "tzupdate timezone update service";
wants = [ "network-online.target" ];
after = [ "network-online.target" ];
script = ''
timezone="$(${lib.getExe pkgs.tzupdate} --print-only)"
if [[ -n "$timezone" ]]; then
echo "Setting timezone to '$timezone'"
timedatectl set-timezone "$timezone"
fi
'';
serviceConfig = {
Type = "oneshot";
};
};
};
meta.maintainers = with lib.maintainers; [ doronbehar ];
}