From 57098e472a1677883b7f95d0d0b5c815ca1b2b3b Mon Sep 17 00:00:00 2001
From: tv <tv@krebsco.de>
Date: Sun, 3 Jul 2016 19:41:31 +0200
Subject: absolute-pathname: check stringLength > 0

---
 krebs/4lib/types.nix | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'krebs/4lib')

diff --git a/krebs/4lib/types.nix b/krebs/4lib/types.nix
index 0d5b51f7..be0acd58 100644
--- a/krebs/4lib/types.nix
+++ b/krebs/4lib/types.nix
@@ -342,7 +342,9 @@ types // rec {
   absolute-pathname = mkOptionType {
     name = "POSIX absolute pathname";
     check = x: let xs = splitString "/" x; xa = head xs; in
-      isString x && (xa == "/" || (xa == "" && all filename.check (tail xs)));
+         isString x
+      && stringLength x > 0
+      && (xa == "/" || (xa == "" && all filename.check (tail xs)));
     merge = mergeOneOption;
   };
 
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