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{-# LANGUAGE TemplateHaskell #-}
module Version ( version ) where
import Control.Monad.Trans (liftIO)
import qualified Language.Haskell.TH as TH
import System.Process (readProcess)
import GHC.IO (catchAny)
version :: String
version = "walint rc3 2021 (" <>
$(do
hash <- liftIO $ catchAny (readProcess "git" ["rev-parse", "HEAD"] "")
(\_ -> pure "[unknown]")
pure . TH.LitE . TH.StringL $ take 40 hash) ++
")"
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