66 lines
1.9 KiB
Haskell
66 lines
1.9 KiB
Haskell
{- Win32-notify interface
|
|
-
|
|
- Copyright 2013 Joey Hess <joey@kitenet.net>
|
|
-
|
|
- License: BSD-2-clause
|
|
-}
|
|
|
|
module Utility.DirWatcher.Win32Notify where
|
|
|
|
import Common hiding (isDirectory)
|
|
import Utility.DirWatcher.Types
|
|
|
|
import System.Win32.Notify
|
|
import qualified Utility.PosixFiles as Files
|
|
|
|
watchDir :: FilePath -> (FilePath -> Bool) -> Bool -> WatchHooks -> IO WatchManager
|
|
watchDir dir ignored scanevents hooks = do
|
|
scan dir
|
|
wm <- initWatchManager
|
|
void $ watchDirectory wm dir True [Create, Delete, Modify, Move] dispatch
|
|
return wm
|
|
where
|
|
dispatch evt
|
|
| ignoredPath ignored (filePath evt) = noop
|
|
| otherwise = case evt of
|
|
(Deleted _ _)
|
|
| isDirectory evt -> runhook delDirHook Nothing
|
|
| otherwise -> runhook delHook Nothing
|
|
(Created _ _)
|
|
| isDirectory evt -> noop
|
|
| otherwise -> runhook addHook Nothing
|
|
(Modified _ _)
|
|
| isDirectory evt -> noop
|
|
{- Add hooks are run when a file is modified for
|
|
- compatability with INotify, which calls the add
|
|
- hook when a file is closed, and so tends to call
|
|
- both add and modify for file modifications. -}
|
|
| otherwise -> do
|
|
runhook addHook Nothing
|
|
runhook modifyHook Nothing
|
|
where
|
|
runhook h s = maybe noop (\a -> a (filePath evt) s) (h hooks)
|
|
|
|
scan d = unless (ignoredPath ignored d) $
|
|
mapM_ go =<< dirContentsRecursiveSkipping (const False) False d
|
|
where
|
|
go f
|
|
| ignoredPath ignored f = noop
|
|
| otherwise = do
|
|
ms <- getstatus f
|
|
case ms of
|
|
Nothing -> noop
|
|
Just s
|
|
| Files.isRegularFile s ->
|
|
when scanevents $
|
|
runhook addHook ms
|
|
| otherwise ->
|
|
noop
|
|
where
|
|
runhook h s = maybe noop (\a -> a f s) (h hooks)
|
|
|
|
getstatus = catchMaybeIO . getFileStatus
|
|
|
|
{- Check each component of the path to see if it's ignored. -}
|
|
ignoredPath :: (FilePath -> Bool) -> FilePath -> Bool
|
|
ignoredPath ignored = any ignored . map dropTrailingPathSeparator . splitPath
|