hcdu/app/Main.hs
2023-10-13 15:24:26 +02:00

30 lines
1.0 KiB
Haskell

module Main where
import System.Posix.Types ()
import System.Posix.Files ()
import System.Posix.Directory ( getWorkingDirectory )
import System.Directory
( pathIsSymbolicLink, doesFileExist, getFileSize, doesDirectoryExist )
import System.Environment ()
import Data.Functor ( (<&>) )
import Control.Monad ( (<=<), filterM )
import System.Directory.Extra ( listContents )
listFiles :: FilePath -> IO [FilePath]
listFiles dir = filterM ((return . not) <=< pathIsSymbolicLink) =<< filterM doesFileExist =<< listContents dir
listDirectories :: FilePath -> IO [FilePath]
listDirectories dir = filterM ((return . not) <=< pathIsSymbolicLink) =<< filterM doesDirectoryExist =<< listContents dir
getAllSubpaths :: FilePath -> IO [(FilePath, Integer)]
getAllSubpaths x = do
sub <- listDirectories x
subFiles <- mapM getAllSubpaths sub
local <- listFiles x >>= (\y -> mapM getFileSize y <&> zip y)
return $ local ++ concat subFiles
main :: IO ()
main = do
a <- getWorkingDirectory
print =<< getAllSubpaths a