hlint

Annex/Branch.hs

@@ -68,7 +68,7 @@ siblingBranches = inRepo $ Git.Ref.matchingUniq name
 
 {- Creates the branch, if it does not already exist. -}
 create :: Annex ()
-create = void $ getBranch
+create = void getBranch
 
 {- Returns the ref of the branch, creating it first if necessary. -}
 getBranch :: Annex Git.Ref

Annex/Content.hs

@@ -87,7 +87,7 @@ lockContent key a = do
 		 - to fiddle with permissions to open for an exclusive lock. -}
 		openforlock f = catchMaybeIO $ ifM (doesFileExist f)
 			( withModifiedFileMode f
-				(\cur -> cur `unionFileModes` ownerWriteMode)
+				(`unionFileModes` ownerWriteMode)
 				open
 			, open
 			)

Command/Commit.hs

@@ -22,7 +22,7 @@ seek = [withNothing start]
 start :: CommandStart
 start = next $ next $ do
 	Annex.Branch.commit "update"
-	_ <- runhook =<< (inRepo $ Git.hookPath "annex-content")
+	_ <- runhook =<< inRepo (Git.hookPath "annex-content")
 	return True
 	where
 		runhook (Just hook) = liftIO $ boolSystem hook []

Command/Fsck.hs

@@ -145,13 +145,13 @@ fixLink key file = do
 		 -}
 		whenM (liftIO $ doesFileExist file) $
 			unlessM (inAnnex key) $ do
-				showNote $ "fixing content location"
+				showNote "fixing content location"
 				dir <- liftIO $ parentDir <$> absPath file
 				let content = absPathFrom dir have
 				liftIO $ allowWrite (parentDir content)
 				moveAnnex key content
 
-		showNote $ "fixing link"
+		showNote "fixing link"
 		liftIO $ createDirectoryIfMissing True (parentDir file)
 		liftIO $ removeFile file
 		liftIO $ createSymbolicLink want file
@@ -220,7 +220,7 @@ checkKeySize' key file bad = case Types.Key.keySize key of
 	Nothing -> return True
 	Just size -> do
 		size' <- fromIntegral . fileSize
-			<$> (liftIO $ getFileStatus file)
+			<$> liftIO (getFileStatus file)
 		comparesizes size size'
 	where
 		comparesizes a b = do

Command/Get.hs

@@ -26,7 +26,7 @@ start from file (key, _) = stopUnless (not <$> inAnnex key) $
 	autoCopies file key (<) $ \_numcopies ->
 		case from of
 			Nothing -> go $ perform key
-			Just src -> do
+			Just src ->
 				-- get --from = copy --from
 				stopUnless (Command.Move.fromOk src key) $
 					go $ Command.Move.fromPerform src False key

Command/Move.hs

@@ -128,9 +128,9 @@ fromOk src key
 		expensive = do
 			u <- getUUID
 			remotes <- Remote.keyPossibilities key
-			return $ u /= Remote.uuid src && any (== src) remotes
+			return $ u /= Remote.uuid src && elem src remotes
 fromPerform :: Remote -> Bool -> Key -> CommandPerform
-fromPerform src move key = moveLock move key $ do
+fromPerform src move key = moveLock move key $
 	ifM (inAnnex key)
 		( handle move True
 		, do

Command/Uninit.hs

@@ -28,8 +28,8 @@ check = do
 		"cannot uninit when the " ++ show b ++ " branch is checked out"
 	top <- fromRepo Git.repoPath
 	cwd <- liftIO getCurrentDirectory
-	whenM ((/=) <$> liftIO (absPath top) <*> liftIO (absPath cwd)) $ error $
+	whenM ((/=) <$> liftIO (absPath top) <*> liftIO (absPath cwd)) $
-		"can only run uninit from the top of the git repository"
+		error "can only run uninit from the top of the git repository"
 	where
 		current_branch = Git.Ref . Prelude.head . lines <$> revhead
 		revhead = inRepo $ Git.Command.pipeRead 

Command/Watch.hs

@@ -176,7 +176,7 @@ runHandler :: MVar Annex.AnnexState -> ChangeChan -> Handler -> FilePath -> IO (
 runHandler st changechan handler file = void $ do
 	r <- tryIO (runStateMVar st $ handler file)
 	case r of
-		Left e -> putStrLn $ show e
+		Left e -> print e
 		Right Nothing -> noop
 		Right (Just change) -> void $
 			runChangeChan $ writeTChan changechan change
@@ -236,7 +236,7 @@ onAddSymlink file = go =<< Backend.lookupFile file
 		 - So for speed, tries to reuse the existing blob for
 		 - the symlink target. -}
 		addlink link = do
-			v <- catObjectDetails $ Ref $ ":" ++ file
+			v <- catObjectDetails $ Ref $ ':':file
 			case v of
 				Just (currlink, sha)
 					| s2w8 link == L.unpack currlink ->
@@ -307,7 +307,7 @@ commitThread st changechan = forever $ do
 	-- Now see if now's a good time to commit.
 	time <- getCurrentTime
 	if shouldCommit time cs
-		then void $ tryIO $ runStateMVar st $ commitStaged
+		then void $ tryIO $ runStateMVar st commitStaged
 		else refillChanges changechan cs
 	where
 		oneSecond = 1000000 -- microseconds

Command/Whereis.hs

@@ -37,7 +37,7 @@ perform remotemap key = do
 	unless (null safelocations) $ showLongNote pp
 	pp' <- prettyPrintUUIDs "untrusted" untrustedlocations
 	unless (null untrustedlocations) $ showLongNote $ untrustedheader ++ pp'
-	forM_ (catMaybes $ map (`M.lookup` remotemap) locations) $
+	forM_ (mapMaybe (`M.lookup` remotemap) locations) $
 		performRemote key
 	if null safelocations then stop else next $ return True
 	where

Config.hs

@@ -114,6 +114,6 @@ getDiskReserve = fromMaybe megabyte . readSize dataUnits
 getHttpHeaders :: Annex [String]
 getHttpHeaders = do
 	cmd <- getConfig (annexConfig "http-headers-command") ""
-	if (null cmd)
+	if null cmd
 		then fromRepo $ Git.Config.getList "annex.http-headers"
 		else lines . snd <$> liftIO (pipeFrom "sh" ["-c", cmd])

Crypto.hs

@@ -138,7 +138,7 @@ withDecryptedContent = pass withDecryptedHandle
 
 pass :: (Cipher -> IO L.ByteString -> (Handle -> IO a) -> IO a) 
       -> Cipher -> IO L.ByteString -> (L.ByteString -> IO a) -> IO a
-pass to n s a = to n s $ \h -> a =<< L.hGetContents h
+pass to n s a = to n s $ a <=< L.hGetContents
 
 hmacWithCipher :: Cipher -> String -> String
 hmacWithCipher c = hmacWithCipher' (cipherHmac c) 

Locations.hs

@@ -165,7 +165,7 @@ gitAnnexRemotesDir r = addTrailingPathSeparator $ gitAnnexDir r </> "remotes"
 
 {- Checks a symlink target to see if it appears to point to annexed content. -}
 isLinkToAnnex :: FilePath -> Bool
-isLinkToAnnex s = ("/" ++ d) `isInfixOf` s || d `isPrefixOf` s
+isLinkToAnnex s = ('/':d) `isInfixOf` s || d `isPrefixOf` s
 	where
 		d = ".git" </> objectDir
 

Messages.hs

@@ -183,7 +183,7 @@ setupConsole = do
 	fileEncoding stderr
 
 handle :: IO () -> IO () -> Annex ()
-handle json normal = withOutputType $ go
+handle json normal = withOutputType go
 	where
 		go NormalOutput = liftIO normal
 		go QuietOutput = q

Utility/Directory.hs

@@ -10,12 +10,11 @@ module Utility.Directory where
 import System.IO.Error
 import System.Posix.Files
 import System.Directory
-import Control.Exception (throw)
+import Control.Exception (throw, bracket_)
 import Control.Monad
 import Control.Monad.IfElse
 import System.FilePath
 import Control.Applicative
-import Control.Exception (bracket_)
 import System.Posix.Directory
 import System.IO.Unsafe (unsafeInterleaveIO)