22 lines
763 B
Haskell
22 lines
763 B
Haskell
module Language.Haskell.GhcMod.Lint where
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import Exception (ghandle)
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import Control.Exception (SomeException(..))
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import CoreMonad (liftIO)
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import Language.Haskell.GhcMod.Logger (checkErrorPrefix)
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import Language.Haskell.GhcMod.Convert
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import Language.Haskell.GhcMod.Monad
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import Language.Haskell.GhcMod.Types
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import Language.Haskell.HLint (hlint)
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-- | Checking syntax of a target file using hlint.
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-- Warnings and errors are returned.
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lint :: FilePath -- ^ A target file.
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-> GhcMod String
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lint file = do
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opt <- options
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ghandle handler . pack =<< (liftIO $ hlint $ file : "--quiet" : hlintOpts opt)
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where
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pack = convert' . map (init . show) -- init drops the last \n.
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handler (SomeException e) = return $ checkErrorPrefix ++ show e ++ "\n"
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