{ config, pkgs, ... }: { # adapted from: # https://github.com/Mic92/dotfiles/blob/020180880d9413e076073889f82c4751a27734e9/nixos/modules/update-prefetch.nix # https://github.com/NixOS/nixpkgs/blob/3428bdf3c93a7608615dddd44dec50c3df89b4be/nixos/modules/system/boot/kexec.nix # https://github.com/NixOS/nixpkgs/blob/3428bdf3c93a7608615dddd44dec50c3df89b4be/nixos/modules/tasks/auto-upgrade.nix systemd.services.update-host = { restartIfChanged = false; unitConfig.X-StopOnRemoval = false; serviceConfig.Restart = "on-failure"; serviceConfig.RestartSec = "30s"; serviceConfig.Type = "oneshot"; path = [ config.nix.package config.systemd.package pkgs.coreutils pkgs.curl pkgs.kexec-tools ]; script = builtins.readFile ./update.bash; }; # https://gist.github.com/Ma27/6650d10f772511931647d3189b3eb1d7 # https://github.com/NuschtOS/nixos-modules/blob/39d26dddae2f117d7f9c33dd1efc866ff684ff94/modules/nix.nix boot.loader.grub.extraInstallCommands = '' if [[ "''${NIXOS_ACTION-}" == boot && -e /run/current-system && -e "''${1-}" ]]; then echo "--- diff to current-system" ${pkgs.nvd}/bin/nvd --nix-bin-dir=${config.nix.package}/bin diff /run/current-system "''${1-}" echo "---" fi ''; systemd.timers.update-host = { wantedBy = [ "timers.target" ]; timerConfig.OnBootSec = "5m"; timerConfig.OnUnitInactiveSec = "5m"; }; }