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--------------------------------------------------------------------------------
-- | A module containing various file utility functions
module Hakyll.Core.Util.File
( makeDirectories
, getRecursiveContents
, removeDirectory
) where
--------------------------------------------------------------------------------
import Control.Applicative ((<$>))
import Control.Monad (filterM, forM, when)
import System.Directory (createDirectoryIfMissing,
doesDirectoryExist, getDirectoryContents,
removeDirectoryRecursive)
import System.FilePath (takeDirectory, (</>))
--------------------------------------------------------------------------------
-- | Given a path to a file, try to make the path writable by making
-- all directories on the path.
makeDirectories :: FilePath -> IO ()
makeDirectories = createDirectoryIfMissing True . takeDirectory
--------------------------------------------------------------------------------
-- | Get all contents of a directory.
getRecursiveContents :: (FilePath -> IO Bool) -- ^ Ignore this file/directory
-> FilePath -- ^ Directory to search
-> IO [FilePath] -- ^ List of files found
getRecursiveContents ignore top = go ""
where
isProper x
| x `elem` [".", ".."] = return False
| otherwise = not <$> ignore x
go dir = do
dirExists <- doesDirectoryExist (top </> dir)
if not dirExists
then return []
else do
names <- filterM 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
--------------------------------------------------------------------------------
removeDirectory :: FilePath -> IO ()
removeDirectory fp = do
e <- doesDirectoryExist fp
when e $ removeDirectoryRecursive fp
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