hakyll/src/Hakyll/Core/Util/File.hs
Jasper Van der Jeugt 25b8c8b199 A bit of cleanup
2012-11-25 10:45:55 +01:00

44 lines
1.7 KiB
Haskell

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-- | A module containing various file utility functions
module Hakyll.Core.Util.File
( makeDirectories
, getRecursiveContents
) where
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import Control.Applicative ((<$>))
import Control.Monad (forM)
import System.Directory (createDirectoryIfMissing,
doesDirectoryExist, getDirectoryContents)
import System.FilePath (takeDirectory, (</>))
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-- | Given a path to a file, try to make the path writable by making
-- all directories on the path.
makeDirectories :: FilePath -> IO ()
makeDirectories = createDirectoryIfMissing True . takeDirectory
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-- | Get all contents of a directory.
getRecursiveContents :: FilePath -- ^ Directory to search
-> IO [FilePath] -- ^ List of files found
getRecursiveContents top = go ""
where
isProper = (`notElem` [".", ".."])
go dir = do
dirExists <- doesDirectoryExist (top </> dir)
if not dirExists
then return []
else do
names <- filter isProper <$> getDirectoryContents (top </> dir)
paths <- forM names $ \name -> do
let rel = dir </> name
isDirectory <- doesDirectoryExist (top </> rel)
if isDirectory
then go rel
else return [rel]
return $ concat paths