move maybe to krebs lib

2 files changed, 12 insertions, 8 deletions

diff --git a/default.nix b/default.nix
index fd127084d..841882f54 100644
--- a/default.nix
+++ b/default.nix
@@ -7,6 +7,8 @@ assert current-user-name != "";
 
 let
   lib = import <nixpkgs/lib>;
+  klib = import ./krebs/4lib { inherit lib; };
+in with klib; let
 
   nspath = ns: p: ./. + "/${ns}/${p}";
   kpath = nspath "krebs";
@@ -67,12 +69,4 @@ let
           }.${v} or Nothing)
           (builtins.readDir path)));
 
-  # TODO move to lib
-  Just = x: { type = "maybe"; value = x; };
-  Nothing = { type = "maybe"; };
-  isMaybe = x: builtins.typeOf x == "set" && x.type or false == "maybe";
-  isJust = x: isMaybe x && builtins.hasAttr "value" x;
-  fromJust = x: assert isJust x; x.value;
-  catMaybes = xs: map fromJust (builtins.filter isJust xs);
-
 in out
diff --git a/krebs/4lib/maybe.nix b/krebs/4lib/maybe.nix
new file mode 100644
index 000000000..5189c99a1
--- /dev/null
+++ b/krebs/4lib/maybe.nix
@@ -0,0 +1,10 @@
+{ ... }:
+
+rec {
+  Just = x: { type = "maybe"; value = x; };
+  Nothing = { type = "maybe"; };
+  isMaybe = x: builtins.typeOf x == "set" && x.type or false == "maybe";
+  isJust = x: isMaybe x && builtins.hasAttr "value" x;
+  fromJust = x: assert isJust x; x.value;
+  catMaybes = xs: map fromJust (builtins.filter isJust xs);
+}