27 lines
945 B
Haskell
27 lines
945 B
Haskell
module Language.Haskell.GhcMod.PkgDoc (pkgDoc) where
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import CoreMonad (liftIO)
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import Language.Haskell.GhcMod.Types
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import Language.Haskell.GhcMod.GhcPkg
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import Language.Haskell.GhcMod.Monad
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import Control.Applicative ((<$>))
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import System.Process (readProcess)
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-- | Obtaining the package name and the doc path of a module.
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pkgDoc :: String -> GhcMod String
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pkgDoc mdl = cradle >>= \c -> liftIO $ do
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pkg <- trim <$> readProcess "ghc-pkg" (toModuleOpts c) []
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if pkg == "" then
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return "\n"
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else do
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htmlpath <- readProcess "ghc-pkg" (toDocDirOpts pkg c) []
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let ret = pkg ++ " " ++ drop 14 htmlpath
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return ret
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where
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toModuleOpts c = ["find-module", mdl, "--simple-output"]
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++ ghcPkgDbStackOpts (cradlePkgDbStack c)
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toDocDirOpts pkg c = ["field", pkg, "haddock-html"]
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++ ghcPkgDbStackOpts (cradlePkgDbStack c)
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trim = takeWhile (`notElem` " \n")
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