Reverse sort

app/Main.hs

@@ -1,14 +1,17 @@
 module Main where
 
-import System.Posix.Directory ( getWorkingDirectory )
-import System.Directory
-    ( pathIsSymbolicLink, doesFileExist, getFileSize, doesDirectoryExist )
-import Data.Functor ( (<&>) )
-import Control.Monad ( filterM )
-import System.Directory.Extra ( listContents )
-import Brick
-import Graphics.Vty
-import Data.List.Extra
+import           System.Posix.Directory ( getWorkingDirectory )
+import           System.Directory       ( pathIsSymbolicLink
+                                        , doesFileExist
+                                        , getFileSize
+                                        , doesDirectoryExist )
+import           Data.Functor           ( (<&>) )
+import           Control.Monad          ( filterM )
+import           System.Directory.Extra ( listContents )
+import           Brick
+import           Graphics.Vty
+import           Data.List.Extra
+import qualified Data.Ord
 
 listNonSymFiles :: FilePath -> IO [FilePath]
 listNonSymFiles dir = filterM (fmap not . pathIsSymbolicLink) =<< filterM doesFileExist =<< listContents dir
@@ -21,7 +24,7 @@ getSizeSubpaths x = do
   sub   <- listNonSymDirectories x
   subby <- mapM (\y -> (y,) . sum . map snd <$> getSizeSubpaths y) sub
   local <- listNonSymFiles x >>= (\y -> mapM getFileSize y <&> zip y)
-  pure $ local ++ subby
+  pure $ sortOn (Data.Ord.Down . snd) $ local ++ subby
 
 data AppS = AppS
   {