From 7169a05ac39a05a7131f6e278a7743cc24726a89 Mon Sep 17 00:00:00 2001
From: niten <niten@fudo.org>
Date: Fri, 6 Oct 2023 10:35:42 -0700
Subject: [PATCH] Define isNotNull

---
 zone-to-zonefile.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/zone-to-zonefile.nix b/zone-to-zonefile.nix
index 492baef..67b5670 100644
--- a/zone-to-zonefile.nix
+++ b/zone-to-zonefile.nix
@@ -54,6 +54,8 @@ let
       lines = splitString "\n" zonedata;
     in concatStringsSep "\n" (map formatter lines);
 
+  isNotNull = o: !isNull o;
+
   hostToFqdn = host:
     if isNotNull (match ".+.$" host) then
       host