luarocks-nix: init

luarocks-nix is a fork of luarocks that adds a "nix" command capable of
converting luarocks package descriptions into nix derivations (though nixpkgs is
still missing the lua infrastructure).

pkgs/top-level/lua-packages.nix

@@ -43,6 +43,8 @@ let
     inherit lua;
   };
 
+  luarocks-nix = callPackage ../development/tools/misc/luarocks/luarocks-nix.nix { };
+
   basexx = buildLuaPackage rec {
     version = "0.4.0";
     name = "basexx-${version}";