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# Based off:
# https://github.com/NixOS/nixpkgs/blob/master/nixos/modules/services/misc/nix-optimise.nix
# When making changes please try to keep it in sync.
{ config, lib, ... }:
let
inherit (lib)
mkIf
mkOption
mkRemovedOptionModule
optionalString
types
;
cfg = config.nix.optimise;
launchdTypes = import ../../launchd/types.nix { inherit config lib; };
in
{
imports = [
(mkRemovedOptionModule [ "nix" "optimise" "dates" ] "Use `nix.optimise.interval` instead.")
];
###### interface
options = {
nix.optimise = {
automatic = mkOption {
type = types.bool;
default = false;
description = "Automatically run the nix store optimiser at a specific time.";
};
# Not in NixOS module
user = mkOption {
type = types.nullOr types.str;
default = null;
description = "User that runs the store optimisation.";
};
interval = mkOption {
type = launchdTypes.StartCalendarInterval;
default = [{ Weekday = 7; Hour = 4; Minute = 15; }];
description = ''
The calendar interval at which the optimiser will run.
See the {option}`serviceConfig.StartCalendarInterval` option of
the {option}`launchd` module for more info.
'';
};
};
};
###### implementation
config = mkIf cfg.automatic {
launchd.daemons.nix-optimise = {
environment.NIX_REMOTE = optionalString config.nix.useDaemon "daemon";
command = "${lib.getExe' config.nix.package "nix-store"} --optimise";
serviceConfig = {
RunAtLoad = false;
StartCalendarInterval = cfg.interval;
UserName = cfg.user;
};
};
};
}
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