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{ config, lib, pkgs, ... }:
with lib;
let
inherit (pkgs) stdenv;
cfg = config.services.activate-system;
in
{
options = {
services.activate-system.enable = mkOption {
type = types.bool;
default = true;
description = "Whether to activate system at boot time.";
};
};
config = mkIf cfg.enable {
launchd.daemons.activate-system = {
script = ''
# Make this configuration the current configuration.
# The readlink is there to ensure that when $systemConfig = /system
# (which is a symlink to the store), /run/current-system is still
# used as a garbage collection root.
ln -sfn $(cat ${config.system.profile}/systemConfig) /run/current-system
# Prevent the current configuration from being garbage-collected.
ln -sfn /run/current-system /nix/var/nix/gcroots/current-system
${config.system.activationScripts.nix.text}
'';
serviceConfig.RunAtLoad = true;
serviceConfig.KeepAlive.SuccessfulExit = false;
};
};
}
|
