From: Ramakrishnan Muthukrishnan <ram@rkrishnan.org>
Date: Sat, 25 Jul 2015 06:40:09 +0000 (+0530)
Subject: hlint caught some ugly code
X-Git-Url: https://git.rkrishnan.org/listings/vdrive/%22doc.html//%22?a=commitdiff_plain;h=6902cd2d7856b416a793dd95efdb4fd329c63e06;p=functorrent.git

hlint caught some ugly code
---

diff --git a/src/FuncTorrent/Peer.hs b/src/FuncTorrent/Peer.hs
index 9984a2a..845c14a 100644
--- a/src/FuncTorrent/Peer.hs
+++ b/src/FuncTorrent/Peer.hs
@@ -192,22 +192,20 @@ createDummyFile path size =
 -- write into a file at a specific offet
 writeFileAtOffset :: FilePath -> Integer -> ByteString -> IO ()
 writeFileAtOffset path offset block =
-  withFile path ReadWriteMode $ (\h -> do
-                                 _ <- hSeek h AbsoluteSeek offset
-                                 hPut h block)
+  withFile path ReadWriteMode (\h -> do
+                                  _ <- hSeek h AbsoluteSeek offset
+                                  hPut h block)
 
 -- recvMsg :: Peer -> Handle -> Msg
 msgLoop :: PeerState -> PieceMap -> IO ()
-msgLoop pState pieceStatus | meInterested pState == False &&
-                            heChoking pState == True = do
-                              -- if me NOT Interested and she is Choking, tell her that
-                              -- I am interested.
-                              let h = handle pState
-                              sendMsg h InterestedMsg
-                              putStrLn $ "--> InterestedMsg to peer: " ++ show (peer pState)
-                              msgLoop (pState { meInterested = True }) pieceStatus
-                          | meInterested pState == True &&
-                            heChoking pState == False =
+msgLoop pState pieceStatus | not (meInterested pState) && heChoking pState = do
+                               -- if me NOT Interested and she is Choking, tell her that
+                               -- I am interested.
+                               let h = handle pState
+                               sendMsg h InterestedMsg
+                               putStrLn $ "--> InterestedMsg to peer: " ++ show (peer pState)
+                               msgLoop (pState { meInterested = True }) pieceStatus
+                          | meInterested pState && not (heChoking pState) =
                               -- if me Interested and she not Choking, send her a request
                               -- for a piece.
                               case pickPiece pieceStatus of
@@ -239,9 +237,9 @@ msgLoop pState pieceStatus | meInterested pState == False &&
                                  -- map with pieceIndex as the key and modify the value to add the peer.
                                  -- download each of the piece in order
                                  msgLoop pState pieceStatus'
-                               UnChokeMsg -> do
+                               UnChokeMsg ->
                                  msgLoop (pState { heChoking = False }) pieceStatus
-                               _ -> do
+                               _ ->
                                  msgLoop pState pieceStatus
 
 -- simple algorithm to pick piece.
@@ -258,7 +256,7 @@ pickPiece m =
 updatePieceAvailability :: PieceMap -> Peer -> [Integer] -> PieceMap
 updatePieceAvailability pieceStatus p pieceList =
   mapWithKey (\k pd -> if k `elem` pieceList
-                       then (pd { peers = p : (peers pd) })
+                       then (pd { peers = p : peers pd })
                        else pd) pieceStatus
 
 handlePeerMsgs :: Peer -> Metainfo -> String -> IO ()
@@ -284,7 +282,7 @@ downloadPiece h index pieceLength = do
   liftM concat $ forM (zip [0..] chunks) (\(i, pLen) -> do
                                              sendMsg h (RequestMsg index (i*pLen) pLen)
                                              putStrLn $ "--> " ++ "RequestMsg for Piece "
-                                               ++ (show index) ++ ", part: " ++ show i ++ " of length: "
+                                               ++ show index ++ ", part: " ++ show i ++ " of length: "
                                                ++ show pLen
                                              msg <- getMsg h
                                              case msg of