From 8b4fd7478261c464632a0e99e5b3c1ae836a4768 Mon Sep 17 00:00:00 2001
From: Lily Foster <lily@lily.flowers>
Date: Sat, 24 Dec 2022 13:34:54 -0500
Subject: [PATCH] nixos/filesystems: require fstab options list be non-empty

When the option list is empty, the fstab generator does not
automatically add "defaults" and generates a non-working fstab (since it
just emits two spaces around where the options would have been which is
only technically one fstab separator).
---
 nixos/modules/tasks/filesystems.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/tasks/filesystems.nix b/nixos/modules/tasks/filesystems.nix
index a093baea6a65..7f2c8a41b20a 100644
--- a/nixos/modules/tasks/filesystems.nix
+++ b/nixos/modules/tasks/filesystems.nix
@@ -54,7 +54,7 @@ let
         default = [ "defaults" ];
         example = [ "data=journal" ];
         description = lib.mdDoc "Options used to mount the file system.";
-        type = types.listOf nonEmptyStr;
+        type = types.nonEmptyListOf nonEmptyStr;
       };
 
       depends = mkOption {