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home-manager/modules/services/home-manager-auto-upgrade.nix
pinage404 418ae217dd
home-manager.autoUpgrade: add module
Home Manager upgrade service that periodically updates your Nix
channels before running `home-manager switch`.
2022-01-28 23:42:25 +01:00

70 lines
1.9 KiB
Nix

{ config, lib, pkgs, ... }:
let
cfg = config.services.home-manager.autoUpgrade;
homeManagerPackage = pkgs.callPackage ../../home-manager {
path = config.programs.home-manager.path;
};
in {
meta.maintainers = [ lib.hm.maintainers.pinage404 ];
options = {
services.home-manager.autoUpgrade = {
enable = lib.mkEnableOption ''
the Home Manager upgrade service that periodically updates your Nix
channels before running <code>home-manager switch</code>'';
frequency = lib.mkOption {
type = lib.types.str;
example = "weekly";
description = ''
The interval at which the Home Manager auto upgrade is run.
This value is passed to the systemd timer configuration
as the <code>OnCalendar</code> option.
The format is described in
<citerefentry>
<refentrytitle>systemd.time</refentrytitle>
<manvolnum>7</manvolnum>
</citerefentry>.
'';
};
};
};
config = lib.mkIf cfg.enable {
assertions = [
(lib.hm.assertions.assertPlatform "services.home-manager.autoUpgrade" pkgs
lib.platforms.linux)
];
systemd.user = {
timers.home-manager-auto-upgrade = {
Unit.Description = "Home Manager upgrade timer";
Install.WantedBy = [ "timers.target" ];
Timer = {
OnCalendar = cfg.frequency;
Unit = "home-manager-auto-upgrade.service";
Persistent = true;
};
};
services.home-manager-auto-upgrade = {
Unit.Description = "Home Manager upgrade";
Service.ExecStart = toString
(pkgs.writeShellScript "home-manager-auto-upgrade" ''
echo "Update Nix's channels"
${pkgs.nix}/bin/nix-channel --update
echo "Upgrade Home Manager"
${homeManagerPackage}/bin/home-manager switch
'');
};
};
};
}