shell.nix

{ nixpkgs ? import <nixpkgs> {}, compiler ? "ghc7101" }:

let

  inherit (nixpkgs) pkgs;

  f = { mkDerivation, aeson, attoparsec, attoparsec-enumerator
      , base, bytestring, conduit, conduit-extra, either, engine-io
      , http-types, monad-control, mtl, resourcet, rethinkdb
      , servant-server, socket-io, stdenv, stm, text, transformers
      , unordered-containers, wai, wai-websockets, warp, websockets
      }:
      mkDerivation {
        pname = "lumi-dashboard-servant";
        version = "0.1.0.0";
        src = ./.;
        isLibrary = false;
        isExecutable = true;
        buildDepends = [
          aeson attoparsec attoparsec-enumerator base bytestring conduit
          conduit-extra either engine-io http-types monad-control mtl
          resourcet rethinkdb servant-server socket-io stm text transformers
          unordered-containers wai wai-websockets warp websockets
        ];
        license = stdenv.lib.licenses.unfree;
      };

  drv = pkgs.haskell.packages.${compiler}.callPackage f {};
  engineIoWai = pkgs.callPackage ../opensrc/engine.io/engine-io-wai/default.nix {};

in

  if pkgs.lib.inNixShell then drv.env else drv