Update to NixOS 19.09

auto-upgrade.nix

@@ -1,114 +0,0 @@
-{ config, lib, pkgs, ... }:
-
-with lib;
-
-let cfg = config.system.autoUpgrade; in
-
-{
-
-  options = {
-
-    system.autoUpgrade = {
-
-      enable = mkOption {
-        type = types.bool;
-        default = false;
-        description = ''
-          Whether to periodically upgrade NixOS to the latest
-          version. If enabled, a systemd timer will run
-          <literal>nixos-rebuild switch --upgrade</literal> once a
-          day.
-        '';
-      };
-
-      channel = mkOption {
-        type = types.nullOr types.str;
-        default = null;
-        example = https://nixos.org/channels/nixos-14.12-small;
-        description = ''
-          The URI of the NixOS channel to use for automatic
-          upgrades. By default, this is the channel set using
-          <command>nix-channel</command> (run <literal>nix-channel
-          --list</literal> to see the current value).
-        '';
-      };
-
-      flags = mkOption {
-        type = types.listOf types.str;
-        default = [];
-        example = [ "-I" "stuff=/home/alice/nixos-stuff" "--option" "extra-binary-caches" "http://my-cache.example.org/" ];
-        description = ''
-          Any additional flags passed to <command>nixos-rebuild</command>.
-        '';
-      };
-
-      dates = mkOption {
-        default = "04:40";
-        type = types.str;
-        description = ''
-          Specification (in the format described by
-          <citerefentry><refentrytitle>systemd.time</refentrytitle>
-          <manvolnum>7</manvolnum></citerefentry>) of the time at
-          which the update will occur.
-        '';
-      };
-
-      allowReboot = mkOption {
-        default = false;
-        type = types.bool;
-        description = ''
-          Reboot the system into the new generation instead of a switch
-          if the new generation uses a different kernel, kernel modules
-          or initrd than the booted system.
-        '';
-      };
-
-    };
-
-  };
-
-  config = lib.mkIf cfg.enable {
-
-    system.autoUpgrade.flags =
-      [ "--no-build-output" ]
-      ++ (if cfg.channel == null
-          then [ "--upgrade" ]
-          else [ "-I" "nixpkgs=${cfg.channel}/nixexprs.tar.xz" ]);
-
-    systemd.services.nixos-upgrade = {
-      description = "NixOS Upgrade";
-
-      restartIfChanged = false;
-      unitConfig.X-StopOnRemoval = false;
-
-      serviceConfig.Type = "oneshot";
-
-      environment = config.nix.envVars //
-        { inherit (config.environment.sessionVariables) NIX_PATH;
-          HOME = "/root";
-        } // config.networking.proxy.envVars;
-
-      path = [ pkgs.coreutils pkgs.gnutar pkgs.xz.bin pkgs.gitMinimal config.nix.package.out ];
-
-      script = let
-          nixos-rebuild = "${config.system.build.nixos-rebuild}/bin/nixos-rebuild";
-        in
-        if cfg.allowReboot then ''
-            ${nixos-rebuild} boot ${toString cfg.flags}
-            booted="$(readlink /run/booted-system/{initrd,kernel,kernel-modules})"
-            built="$(readlink /nix/var/nix/profiles/system/{initrd,kernel,kernel-modules})"
-            if [ "$booted" = "$built" ]; then
-              ${nixos-rebuild} switch ${toString cfg.flags}
-            else
-              /run/current-system/sw/bin/shutdown -r +1
-            fi
-          '' else ''
-            ${nixos-rebuild} switch ${toString cfg.flags}
-        '';
-
-      startAt = cfg.dates;
-    };
-
-  };
-
-}

configuration.nix

@@ -5,10 +5,8 @@
 { config, pkgs, ... }:
 
 {
-  disabledModules = [ "tasks/auto-upgrade.nix" ];
   imports =
     [
-      ./auto-upgrade.nix
       ./hardware-configuration.nix
       ./sshusers.nix
       ./variables.nix