ibis/shell.nix

{ nixpkgs ? import <nixpkgs> {}, compiler ? "default", doBenchmark ? false }:

let

  sdl2 = with haskellPackages; callPackage (
    { mkDerivation, base, bytestring, deepseq, exceptions, linear, SDL2
    , StateVar, stdenv, text, transformers, vector, weigh
    }:
    mkDerivation {
      pname = "sdl2";
      version = "2.4.1.0";
      sha256 = "21a569c0c19f8ff2bbe1cf1d3eb32f65e8143806de353cedd240df5e9d088b5c";
      isLibrary = true;
      isExecutable = true;
      enableSeparateDataOutput = true;
      libraryHaskellDepends = [
        base bytestring exceptions linear StateVar text transformers vector
      ];
      librarySystemDepends = [ SDL2 ];
      libraryPkgconfigDepends = [ SDL2 ];
      testHaskellDepends = [ base deepseq linear vector weigh ];
      doCheck = false;
      description = "Both high- and low-level bindings to the SDL library (version 2.0.4+).";
      license = stdenv.lib.licenses.bsd3;
    }) {};

  inherit (nixpkgs) pkgs;

  f = { mkDerivation, base, linear, optparse-applicative, poppler, stdenv,
        text
      }:
      mkDerivation {
        pname = "ibis";
        version = "0.0.0.0";
        src = ./.;
        isLibrary = false;
        isExecutable = true;
        executableHaskellDepends = [ base linear sdl2 optparse-applicative
          poppler text ];
        description = "A pdf presenter";
        license = stdenv.lib.licenses.gpl3;
      };

  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