28 lines
957 B
Haskell
28 lines
957 B
Haskell
module Language.Haskell.GhcMod.PkgDoc (pkgDoc) where
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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 Language.Haskell.GhcMod.Utils
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import Control.Applicative
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import Prelude
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-- | Obtaining the package name and the doc path of a module.
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pkgDoc :: IOish m => String -> GhcModT m String
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pkgDoc mdl = do
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pkgDbStack <- getPackageDbStack
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pkg <- liftIO $ trim <$> readProcess "ghc-pkg" (toModuleOpts pkgDbStack) ""
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if pkg == "" then
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return "\n"
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else do
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htmlpath <- liftIO $ readProcess "ghc-pkg" (toDocDirOpts pkg pkgDbStack) ""
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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 dbs = ["find-module", mdl, "--simple-output"]
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++ ghcPkgDbStackOpts dbs
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toDocDirOpts pkg dbs = ["field", pkg, "haddock-html"]
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++ ghcPkgDbStackOpts dbs
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trim = takeWhile (`notElem` " \n")
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