1 files changed, 35 insertions, 1 deletions
diff --git a/lib/default.nix b/lib/default.nix
index 1f5010853..2b12fa4bf 100644
--- a/lib/default.nix
+++ b/lib/default.nix
@@ -1,10 +1,44 @@
 let
-  lib = import <nixpkgs/lib> // builtins // {
+  nixpkgs-lib = import <nixpkgs/lib>;
+  lib = with lib; nixpkgs-lib // builtins // {
+    git = import ./git.nix { inherit lib; };
     shell = import ./shell.nix { inherit lib; };
+    types = nixpkgs-lib.types // import ./types.nix { inherit lib; };
 
     eq = x: y: x == y;
     ne = x: y: x != y;
     mod = x: y: x - y * (x / y);
+
+    genid = import ./genid.nix { inherit lib; };
+    genid_signed = x: ((lib.genid x) + 16777216) / 2;
+
+    lpad = n: c: s:
+      if lib.stringLength s < n
+        then lib.lpad n c (c + s)
+        else s;
+
+    subdirsOf = path:
+      lib.mapAttrs (name: _: path + "/${name}")
+                   (filterAttrs (_: eq "directory") (readDir path));
+
+    genAttrs' = names: f: listToAttrs (map f names);
+
+    getAttrs = names: set:
+      listToAttrs (map (name: nameValuePair name set.${name})
+                       (filter (flip hasAttr set) names));
+
+    setAttr = name: value: set: set // { ${name} = value; };
+
+    toC = x: let
+      type = typeOf x;
+      reject = throw "cannot convert ${type}";
+    in {
+      list = "{ ${concatStringsSep ", " (map toC x)} }";
+      null = "NULL";
+      set = if isDerivation x then toJSON x else reject;
+      string = toJSON x; # close enough
+    }.${type} or reject;
+
   };
 in