From 5790bb073f8cfa5de29ce65ae4c6d15b21cccf7e Mon Sep 17 00:00:00 2001
From: Frederik Rietdijk <fridh@fridh.nl>
Date: Wed, 25 Nov 2020 08:17:30 +0100
Subject: [PATCH] nixos auto-upgrade: remove flag when flake

The `--no-build-output` flag that is added by default is only valid
for the old cli, which is not used when flakes are used.

Follow-up to c9daa81eff922d9f77d136cfcff0ea05d40024e0.
---
 nixos/modules/tasks/auto-upgrade.nix | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/nixos/modules/tasks/auto-upgrade.nix b/nixos/modules/tasks/auto-upgrade.nix
index 69385e5f2fe..b19b688a1fb 100644
--- a/nixos/modules/tasks/auto-upgrade.nix
+++ b/nixos/modules/tasks/auto-upgrade.nix
@@ -109,9 +109,8 @@ in {
       '';
     }];
 
-    system.autoUpgrade.flags = [ "--no-build-output" ]
-      ++ (if cfg.flake == null then
-        (if cfg.channel == null then
+    system.autoUpgrade.flags = (if cfg.flake == null then
+        [ "--no-build-output" ] ++ (if cfg.channel == null then
           [ "--upgrade" ]
         else [
           "-I"