nixos/auto-upgrade: Format

nixos/modules/tasks/auto-upgrade.nix

@@ -1,7 +1,14 @@
-{ config, lib, pkgs, ... }:
-let cfg = config.system.autoUpgrade;
+{
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.system.autoUpgrade;
 
-in {
+in
+{
 
   options = {
 
@@ -19,7 +26,10 @@ in {
       };
 
       operation = lib.mkOption {
-        type = lib.types.enum ["switch" "boot"];
+        type = lib.types.enum [
+          "switch"
+          "boot"
+        ];
         default = "switch";
         example = "boot";
         description = ''
@@ -125,8 +135,13 @@ in {
           The default value of `null` means that reboots are allowed at any time.
         '';
         default = null;
-        example = { lower = "01:00"; upper = "05:00"; };
-        type = with lib.types; nullOr (submodule {
+        example = {
+          lower = "01:00";
+          upper = "05:00";
+        };
+        type =
+          with lib.types;
+          nullOr (submodule {
             options = {
               lower = lib.mkOption {
                 description = "Lower limit of the reboot window";
@@ -165,20 +180,28 @@ in {
 
   config = lib.mkIf cfg.enable {
 
-    assertions = [{
+    assertions = [
+      {
         assertion = !((cfg.channel != null) && (cfg.flake != null));
         message = ''
           The options 'system.autoUpgrade.channel' and 'system.autoUpgrade.flake' cannot both be set.
         '';
-    }];
+      }
+    ];
 
-    system.autoUpgrade.flags = (if cfg.flake == null then
-        [ "--no-build-output" ] ++ lib.optionals (cfg.channel != null) [
+    system.autoUpgrade.flags = (
+      if cfg.flake == null then
+        [ "--no-build-output" ]
+        ++ lib.optionals (cfg.channel != null) [
           "-I"
           "nixpkgs=${cfg.channel}/nixexprs.tar.xz"
         ]
       else
-        [ "--refresh" "--flake ${cfg.flake}" ]);
+        [
+          "--refresh"
+          "--flake ${cfg.flake}"
+        ]
+    );
 
     systemd.services.nixos-upgrade = {
       description = "NixOS Upgrade";
@@ -188,10 +211,13 @@ in {
 
       serviceConfig.Type = "oneshot";
 
-      environment = config.nix.envVars // {
+      environment =
+        config.nix.envVars
+        // {
           inherit (config.environment.sessionVariables) NIX_PATH;
           HOME = "/root";
-      } // config.networking.proxy.envVars;
+        }
+        // config.networking.proxy.envVars;
 
       path = with pkgs; [
         coreutils
@@ -203,13 +229,16 @@ in {
         config.programs.ssh.package
       ];
 
-      script = let
+      script =
+        let
           nixos-rebuild = "${config.system.build.nixos-rebuild}/bin/nixos-rebuild";
           date = "${pkgs.coreutils}/bin/date";
           readlink = "${pkgs.coreutils}/bin/readlink";
           shutdown = "${config.systemd.package}/bin/shutdown";
           upgradeFlag = lib.optional (cfg.channel == null) "--upgrade";
-      in if cfg.allowReboot then ''
+        in
+        if cfg.allowReboot then
+          ''
             ${nixos-rebuild} boot ${toString (cfg.flags ++ upgradeFlag)}
             booted="$(${readlink} /run/booted-system/{initrd,kernel,kernel-modules})"
             built="$(${readlink} /nix/var/nix/profiles/system/{initrd,kernel,kernel-modules})"
@@ -248,7 +277,9 @@ in {
             else
               ${shutdown} -r +1
             fi
-      '' else ''
+          ''
+        else
+          ''
             ${nixos-rebuild} ${cfg.operation} ${toString (cfg.flags ++ upgradeFlag)}
           '';