summaryrefslogtreecommitdiffstats
path: root/4lib/krebs/default.nix
diff options
context:
space:
mode:
authormakefu <github@syntax-fehler.de>2015-07-26 18:11:09 +0200
committermakefu <github@syntax-fehler.de>2015-07-26 18:11:09 +0200
commitc355a1d86250aca3f5757082ddd392ef867ca4ee (patch)
treea9a596081878d3117e625b9ce164c82339e35812 /4lib/krebs/default.nix
parentf338d3d4d15ff29b3048b4f89716a8aa1a19f21b (diff)
parentcea33984057136ea0deac369650e490f420b5445 (diff)
Merge remote-tracking branch 'cd/master'
Diffstat (limited to '4lib/krebs/default.nix')
-rw-r--r--4lib/krebs/default.nix18
1 files changed, 18 insertions, 0 deletions
diff --git a/4lib/krebs/default.nix b/4lib/krebs/default.nix
index 0c59076b6..0c42a5de3 100644
--- a/4lib/krebs/default.nix
+++ b/4lib/krebs/default.nix
@@ -12,4 +12,22 @@ builtins // lib // rec {
types = import ./types.nix { inherit lib; };
+
+ # listset k v = set k [v]
+
+ # listset-insert : k -> v -> listset k v -> listset k v
+ listset-insert = name: value: set:
+ set // { ${name} = set.${name} or [] ++ [value]; };
+
+ # tree k v = set k (either v (tree k v))
+
+ # tree-get : [k] -> tree k v -> v
+ tree-get = path: x:
+ let
+ y = x.${last path};
+ in
+ if typeOf y != "set"
+ then y
+ else tree-get (init path) y;
+
}