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nix-auto-update.nix (2281B)

      1 { config, lib, pkgs, ... }:
      2 
      3 with lib;
      4 let
      5   cfg = config.profiles.nix-auto-update;
      6 in
      7 {
      8   options = {
      9     profiles.nix-auto-update = {
     10       enable = mkOption {
     11         default = false;
     12         description = "Enable nix-auto-update profile";
     13         type = types.bool;
     14       };
     15       autoUpgrade = mkOption {
     16         default = true;
     17         description = "Automatically try to upgrade the system";
     18         type = types.bool;
     19       };
     20       dates = mkOption {
     21         default = "weekly";
     22         description = "Specification (in the format described by systemd.time(7)) of the time at which the auto-update will run. ";
     23         type = types.str;
     24       };
     25       version = mkOption {
     26         default = "20.03";
     27         description = "System version (NixOS)";
     28         type = types.str;
     29       };
     30     };
     31   };
     32   config = mkIf cfg.enable (mkMerge [
     33     {
     34       system = {
     35         stateVersion = cfg.version;
     36       };
     37     }
     38     (
     39       mkIf cfg.autoUpgrade {
     40         systemd.services.nixos-update = {
     41           description = "NixOS Upgrade";
     42           unitConfig.X-StopOnRemoval = false;
     43           restartIfChanged = false;
     44           serviceConfig.Type = "oneshot";
     45           environment = config.nix.envVars
     46             // {
     47             inherit (config.environment.sessionVariables) NIX_PATH;
     48             HOME = "/root";
     49           };
     50           script = ''
     51             export PATH=/run/current-system/sw/bin
     52             cd /etc/nixos/
     53             make switch
     54           '';
     55           startAt = cfg.dates;
     56           onFailure = [ "status-email-root@%n.service" ];
     57         };
     58         systemd.services.etc-nixos-git-update = {
     59           description = "Update NixOS source git repository";
     60           unitConfig.X-StopOnRemoval = false;
     61           restartIfChanged = false;
     62           serviceConfig.Type = "oneshot";
     63           serviceConfig.User = "vincent";
     64           environment = config.nix.envVars
     65             // {
     66             inherit (config.environment.sessionVariables) NIX_PATH;
     67           };
     68           script = ''
     69             export PATH=/run/current-system/sw/bin
     70             cd /etc/nixos/
     71             git pull --rebase --autostash --recurse-submodules
     72           '';
     73           startAt = "daily";
     74           onFailure = [ "status-email-root@%n.service" ];
     75         };
     76       }
     77     )
     78   ]);
     79 }