From 98bc5991db76171ae9e1631b66f41061420624db Mon Sep 17 00:00:00 2001
From: tv <tv@shackspace.de>
Date: Sun, 26 Jul 2015 21:04:13 +0200
Subject: 3 krebs: make dns.providers part of api

---
 4lib/krebs/listset.nix | 11 +++++++++++
 1 file changed, 11 insertions(+)
 create mode 100644 4lib/krebs/listset.nix

(limited to '4lib/krebs/listset.nix')

diff --git a/4lib/krebs/listset.nix b/4lib/krebs/listset.nix
new file mode 100644
index 000000000..3aae22f20
--- /dev/null
+++ b/4lib/krebs/listset.nix
@@ -0,0 +1,11 @@
+{ lib, ... }:
+
+with lib;
+
+rec {
+  # listset k v = set k [v]
+
+  # insert : k -> v -> listset k v -> listset k v
+  insert = name: value: set:
+    set // { ${name} = set.${name} or [] ++ [value]; };
+}
-- 
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