shell.nix

{ nixpkgs ? import ./packages.nix {}, compiler ? "default", doBenchmark ? false }:

let

  inherit (nixpkgs) pkgs;

  f = { mkDerivation, aeson, base, base64-bytestring, bcrypt
      , bloodhound, bytestring, containers, directory, dotenv
      , fast-logger, filepath, hedis, hip, hpack, hslogger, http-client
      , http-types, hworker, monad-control, monad-logger, mtl
      , optparse-applicative, parser-combinators, persistent
      , persistent-postgresql, persistent-template, safe, sendgrid-v3
      , servant, servant-multipart, servant-server, stdenv, text, time
      , transformers, unordered-containers, utf8-string, uuid, wai
      , wai-cors, wai-extra, warp
      }:
      let 
        gitignoreSrc = pkgs.fetchFromGitHub { 
          owner = "hercules-ci";
          repo = "gitignore.nix";
          rev = "7415c4feb127845553943a3856cbc5cb967ee5e0";
          sha256 = "sha256:1zd1ylgkndbb5szji32ivfhwh04mr1sbgrnvbrqpmfb67g2g3r9i";
        };
        inherit (import gitignoreSrc { inherit (pkgs) lib; }) gitignoreSource;
      in
        mkDerivation {
          pname = "rfp-service";
          version = "0.0.5.1";
          src = gitignoreSource ./.;
          isLibrary = true;
          isExecutable = true;
          libraryHaskellDepends = [
            aeson base bcrypt bloodhound bytestring containers directory dotenv
            fast-logger filepath hedis hip hslogger http-client http-types
            hworker monad-control monad-logger mtl optparse-applicative
            parser-combinators persistent persistent-postgresql
            persistent-template safe sendgrid-v3 servant servant-multipart
            servant-server text time transformers unordered-containers uuid wai
            wai-cors wai-extra warp
          ];
          libraryToolDepends = [ hpack ];
          executableHaskellDepends = [
            base base64-bytestring bytestring dotenv fast-logger hedis hslogger
            http-types hworker monad-logger mtl optparse-applicative persistent
            persistent-postgresql persistent-template text time utf8-string wai
            wai-cors wai-extra warp
          ];
          prePatch = "hpack";
          description = "RFPService service";
          license = stdenv.lib.licenses.mit;
        };

  haskellPackages = if compiler == "default"
                       then pkgs.haskellPackages
                       else pkgs.haskell.packages.${compiler};

  variant = if doBenchmark then pkgs.haskell.lib.doBenchmark else pkgs.lib.id;

  drv = variant (haskellPackages.callPackage f {});

in

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