ghc-mod/Language/Haskell/GhcMod/Lint.hs
2014-05-14 17:06:30 +02:00

20 lines
744 B
Haskell

module Language.Haskell.GhcMod.Lint where
import Control.Applicative ((<$>))
import Control.Exception (handle, SomeException(..))
import Language.Haskell.GhcMod.Logger (checkErrorPrefix)
import Language.Haskell.GhcMod.Convert
import Language.Haskell.GhcMod.Types
import Language.Haskell.HLint (hlint)
-- | Checking syntax of a target file using hlint.
-- Warnings and errors are returned.
lintSyntax :: Options
-> FilePath -- ^ A target file.
-> IO String
lintSyntax opt file = handle handler $ pack <$> hlint (file : "--quiet" : hopts)
where
pack = convert opt . map (init . show) -- init drops the last \n.
hopts = hlintOpts opt
handler (SomeException e) = return $ checkErrorPrefix ++ show e ++ "\n"