module Language.Haskell.GhcMod.Debug (debugInfo, rootInfo) where import Control.Arrow (first) import Control.Applicative ((<$>)) import qualified Data.Map as Map import qualified Data.Set as Set import Text.PrettyPrint import Language.Haskell.GhcMod.Convert import Language.Haskell.GhcMod.Monad import Language.Haskell.GhcMod.Types import Language.Haskell.GhcMod.Internal import Language.Haskell.GhcMod.CabalHelper import Language.Haskell.GhcMod.Target import Language.Haskell.GhcMod.Pretty ---------------------------------------------------------------- -- | Obtaining debug information. debugInfo :: IOish m => GhcModT m String debugInfo = do Options {..} <- options Cradle {..} <- cradle cabal <- case cradleCabalFile of Just _ -> cabalDebug Nothing -> return [] return $ unlines $ [ "Root directory: " ++ cradleRootDir , "Current directory: " ++ cradleCurrentDir , "GHC System libraries: " ++ ghcLibDir , "GHC user options: " ++ render (fsep $ map text ghcUserOptions) ] ++ cabal cabalDebug :: IOish m => GhcModT m [String] cabalDebug = do Cradle {..} <- cradle mcs <- resolveGmComponents Nothing =<< getComponents let entrypoints = Map.map gmcEntrypoints mcs graphs = Map.map gmcHomeModuleGraph mcs opts = Map.map gmcGhcOpts mcs srcOpts = Map.map gmcGhcSrcOpts mcs return $ [ "Cabal file: " ++ show cradleCabalFile , "Cabal entrypoints:\n" ++ render (nest 4 $ mapDoc gmComponentNameDoc smpDoc entrypoints) , "Cabal components:\n" ++ render (nest 4 $ mapDoc gmComponentNameDoc graphDoc graphs) , "GHC Cabal options:\n" ++ render (nest 4 $ mapDoc gmComponentNameDoc (fsep . map text) opts) , "GHC search path options:\n" ++ render (nest 4 $ mapDoc gmComponentNameDoc (fsep . map text) srcOpts) ] graphDoc :: GmModuleGraph -> Doc graphDoc GmModuleGraph{..} = mapDoc mpDoc' smpDoc' gmgGraph where smpDoc' smp = vcat $ map mpDoc' $ Set.toList smp mpDoc' = text . moduleNameString . mpModule smpDoc :: Set.Set ModulePath -> Doc smpDoc smp = vcat $ map mpDoc $ Set.toList smp mpDoc :: ModulePath -> Doc mpDoc (ModulePath mn fn) = text (moduleNameString mn) <+> parens (text fn) mapDoc :: (k -> Doc) -> (a -> Doc) -> Map.Map k a -> Doc mapDoc kd ad m = vcat $ map (uncurry ($+$)) $ map (first kd) $ Map.toList $ Map.map (nest 4 . ad) m ---------------------------------------------------------------- -- | Obtaining root information. rootInfo :: IOish m => GhcModT m String rootInfo = convert' =<< cradleRootDir <$> cradle