{-# LANGUAGE DoAndIfThenElse #-}
module Main where

import Test.DocTest (mainFromCabal)
import System.Environment (getArgs, lookupEnv)
import System.IO (stderr, hPutStrLn)


main :: IO ()
main = do
  nix <- maybe False null <$> lookupEnv "GYEHOEK_IN_NIX_BUILD"
  if nix then do
    hPutStrLn stderr "\
     \skipping doctests in Nix build environment. \
     \see https://github.com/pcapriotti/optparse-applicative/pull/408."
  else
    mainFromCabal "gyehoek" =<< getArgs