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diff --git a/Plugins/Mail.hs b/Plugins/Mail.hs
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------------------------------------------------------------------------------
--- |
--- Module : Plugins.Mail
--- Copyright : (c) Spencer Janssen
--- License : BSD-style (see LICENSE)
---
--- Maintainer : Spencer Janssen <sjanssen@cse.unl.edu>
--- Stability : unstable
--- Portability : unportable
---
--- A plugin for checking mail.
---
------------------------------------------------------------------------------
-
-module Plugins.Mail where
-
-import Prelude hiding (catch)
-import Plugins
-import Plugins.Utils (expandHome, changeLoop)
-
-import Control.Monad
-import Control.Concurrent.STM
-
-import System.Directory
-import System.FilePath
-import System.INotify
-
-import Data.List (isPrefixOf)
-import Data.Set (Set)
-import qualified Data.Set as S
-
--- | A list of mail box names and paths to maildirs.
-data Mail = Mail [(String, FilePath)]
- deriving (Read, Show)
-
-instance Exec Mail where
- start (Mail ms) cb = do
- vs <- mapM (const $ newTVarIO S.empty) ms
-
- let ts = map fst ms
- rs = map ((</> "new") . snd) ms
- ev = [Move, MoveIn, MoveOut, Create, Delete]
-
- ds <- mapM expandHome rs
- i <- initINotify
- zipWithM_ (\d v -> addWatch i ev d (handle v)) ds vs
-
- forM_ (zip ds vs) $ \(d, v) -> do
- s <- fmap (S.fromList . filter (not . isPrefixOf "."))
- $ getDirectoryContents d
- atomically $ modifyTVar v (S.union s)
-
- changeLoop (mapM (fmap S.size . readTVar) vs) $ \ns ->
- cb . unwords $ [m ++ ":" ++ show n
- | (m, n) <- zip ts ns
- , n /= 0 ]
-
-modifyTVar :: TVar a -> (a -> a) -> STM ()
-modifyTVar v f = readTVar v >>= writeTVar v . f
-
-handle :: TVar (Set String) -> Event -> IO ()
-handle v e = atomically $ modifyTVar v $ case e of
- Created {} -> create
- MovedIn {} -> create
- Deleted {} -> delete
- MovedOut {} -> delete
- _ -> id
- where
- delete = S.delete (filePath e)
- create = S.insert (filePath e)