-

with import <nixpkgs> { };

let eyaml_env = bundlerEnv rec {
    name = "eyaml_env";
    ruby = ruby_2_2;
    gemfile = ./Gemfile;
    lockfile = ./Gemfile.lock;
    gemset = ./gemset.nix;
    gemConfig = pkgs.defaultGemConfig // {
        gpgme = attrs: {
            buildInputs = [ gpgme ];
        };
    };
  };
  mosquitto_1_1_3 = callPackage ./mosquitto.nix {};
in
  stdenv.mkDerivation rec {
    name = "My_env";
    buildInputs = [
      eyaml_env
      pythonPackages.Fabric
      pythonPackages.pyyaml
      pkgs.pythonPackages.requests
      pkgs.pythonPackages.pytz
      pkgs.pythonPackages.pymongo
    ];
    shellHook = ''
      export EDITOR=nvim
      echo "My Env" \
      | ${pkgs.figlet}/bin/figlet -f banner -c \
      | ${pkgs.lolcat}/bin/lolcat
          cat <<EOF
        Instructions for modifying encrypted hiera values:
             $ eyaml edit <hiera_file>
        Instructions for Running fabric tasks:
             $ fab -l
             $ fab -d <task>
             $ fab loadenv:environment=foo <task>
    EOF

    '';
  }