haskellRethinkDB.nix

{ compiler ? "ghc7102" }:
let
  pkgs = import <nixpkgs> {};
  stdenv = pkgs.stdenv;
  cabalInstall = if compiler == "ghc763" then haskellPackages.cabal-install_1_18_1_0 else haskellPackages.cabal-install;
  haskell = pkgs.haskell // {
    packages = pkgs.haskell.packages // {
      ghc763 = pkgs.haskell.packages.ghc763.override {
        overrides = self: pkgs: {
          mkDerivation = args: pkgs.mkDerivation (args // { doHaddock = false; });
        };
      };
    };
  };
  haskellPackages = haskell.packages.${compiler}.override {
    overrides = self: super: {
      haskell-rethinkdb = self.callPackage ~/Work/opensrc/haskell-rethinkdb {};
    };
  };
  inputs = [
      haskellPackages.ghc-mod
      cabalInstall
  ];
in rec {
  haskellRethinkDBEnv = stdenv.lib.overrideDerivation haskellPackages.haskell-rethinkdb.env (old: {
    name = "haskell-rethinkdb-env";
    buildInputs = old.buildInputs ++ inputs;
    NIX_MYENV_NAME = "haskell-rethinkdb";
    shellHook = ''
      source ~/.bash_prompt
      # Run the old shell hook of the haskell environment
      ${old.shellHook}
    '';
  });
}