bazel-nix-hspec-discover

The goal is to have both the following commands working with the same Spec.hs

bazel test :test

which currently works with

{-# LANGUAGE CPP #-}
{-# OPTIONS_GHC -F -pgmF HSPEC_DISCOVER #-}

and

bazel run :repl

which currently works with

{-# OPTIONS_GHC -F -pgmF hspec-discover #-}