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|
module Files
( mkdirP
, fileTree
, isFiletype
, copyFiles
) where
import System.Directory hiding (isSymbolicLink)
import System.Posix.Files
( FileStatus
, getFileStatus
, isBlockDevice
, isCharacterDevice
, isDirectory
, isNamedPipe
, isRegularFile
, isSocket
, isSymbolicLink
)
import System.FilePath
( joinPath
, takeExtension
, (</>)
)
mkdirP = createDirectoryIfMissing True
fmt :: FileStatus -> String
fmt st | isBlockDevice st = "block"
| isCharacterDevice st = "char"
| isNamedPipe st = "pipe"
| isRegularFile st = "regular"
| isDirectory st = "directory"
| isSymbolicLink st = "symlink"
| isSocket st = "socket"
| otherwise = "UNKNOWN"
instance Show FileStatus where
show = fmt
fileTree :: [FilePath] -> IO [(FileStatus, [FilePath])]
fileTree base = do
items <- listDirectory (joinPath base)
concat <$>
mapM (\entry -> do
let here = base <> [entry]
let path = joinPath here
st <- getFileStatus path
let d = (st, here)
if isDirectory st
then (d :) <$> fileTree here
else return [ d ]
) items
isFiletype :: String -> FileStatus -> [FilePath] -> Bool
isFiletype extension st path
= isRegularFile st && (takeExtension . last $ path) == ('.' : extension)
copyFile' :: FilePath -> FileStatus -> [FilePath] -> IO ()
copyFile' dest st path
| isDirectory st = createDirectoryIfMissing True p
| otherwise = copyFile (joinPath path) p
where p = dest </> joinPath (tail path)
copyFiles :: FilePath -> [(FileStatus, [FilePath])] -> IO ()
copyFiles dest = mapM_ (uncurry $ copyFile' dest)
|
