From 8e5f3e29a7476ce90a916daf847862076fa6919f Mon Sep 17 00:00:00 2001
From: Daniel Barlow <dan@telent.net>
Date: Sat, 12 Apr 2025 23:39:13 +0100
Subject: [PATCH] don't write service properties with null values

because serialisation causes them to become empty strings
which are not null
---
 pkgs/liminix-tools/services/builder.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pkgs/liminix-tools/services/builder.sh b/pkgs/liminix-tools/services/builder.sh
index 7a00b37..a8b95d7 100644
--- a/pkgs/liminix-tools/services/builder.sh
+++ b/pkgs/liminix-tools/services/builder.sh
@@ -3,7 +3,7 @@ mkdir -p $out/${name}
 
 writepath(){
     mkdir -p $(dirname $1)
-    echo $2 > $1
+    if test -n "$2" ; then ( echo $2 > $1 ) ;fi
 }
 if test -n "$propertiesText"; then
     mkdir $out/.properties