finished hlinting

Command/Add.hs

@@ -28,7 +28,7 @@ seek = [withFilesNotInGit start, withFilesUnlocked start]
 start :: SubCmdStartBackendFile
 start pair@(file, _) = notAnnexed file $ do
 	s <- liftIO $ getSymbolicLinkStatus file
-	if ((isSymbolicLink s) || (not $ isRegularFile s))
+	if (isSymbolicLink s) || (not $ isRegularFile s)
 		then return Nothing
 		else do
 			showStart "add" file
@@ -37,7 +37,7 @@ start pair@(file, _) = notAnnexed file $ do
 perform :: (FilePath, Maybe Backend) -> SubCmdPerform
 perform (file, backend) = do
 	stored <- Backend.storeFileKey file backend
-	case (stored) of
+	case stored of
 		Nothing -> return Nothing
 		Just (key, _) -> return $ Just $ cleanup file key
 

Command/Drop.hs

@@ -24,7 +24,7 @@ seek = [withFilesInGit start]
 start :: SubCmdStartString
 start file = isAnnexed file $ \(key, backend) -> do
 	inbackend <- Backend.hasKey key
-	if (not inbackend)
+	if not inbackend
 		then return Nothing
 		else do
 			showStart "drop" file
@@ -33,13 +33,13 @@ start file = isAnnexed file $ \(key, backend) -> do
 perform :: Key -> Backend -> SubCmdPerform
 perform key backend = do
 	success <- Backend.removeKey backend key
-	if (success)
+	if success
 		then return $ Just $ cleanup key
 		else return Nothing
 
 cleanup :: Key -> SubCmdCleanup
 cleanup key = do
 	inannex <- inAnnex key
-	when (inannex) $ removeAnnex key
+	when inannex $ removeAnnex key
 	logStatus key ValueMissing
 	return True

Command/DropKey.hs

@@ -22,12 +22,12 @@ seek = [withKeys start]
 start :: SubCmdStartString
 start keyname = do
 	backends <- Backend.list
-	let key = genKey (backends !! 0) keyname
+	let key = genKey (head backends) keyname
 	present <- inAnnex key
 	force <- Annex.flagIsSet "force"
-	if (not present)
+	if not present
 		then return Nothing
-		else if (not force)
+		else if not force
 			then error "dropkey is can cause data loss; use --force if you're sure you want to do this"
 			else do
 				showStart "dropkey" keyname

Command/Find.hs

@@ -20,5 +20,5 @@ seek = [withDefault "." withFilesInGit start]
 start :: SubCmdStartString
 start file = isAnnexed file $ \(key, _) -> do
 	exists <- inAnnex key
-	when (exists) $ liftIO $ putStrLn file
+	when exists $ liftIO $ putStrLn file
 	return Nothing

Command/Fix.hs

@@ -25,7 +25,7 @@ start :: SubCmdStartString
 start file = isAnnexed file $ \(key, _) -> do
 	link <- calcGitLink file key
 	l <- liftIO $ readSymbolicLink file
-	if (link == l)
+	if link == l
 		then return Nothing
 		else do
 			showStart "fix" file

Command/FromKey.hs

@@ -29,10 +29,10 @@ start file = do
 	keyname <- Annex.flagGet "key"
 	when (null keyname) $ error "please specify the key with --key"
 	backends <- Backend.list
-	let key = genKey (backends !! 0) keyname
+	let key = genKey (head backends) keyname
 
 	inbackend <- Backend.hasKey key
-	unless (inbackend) $ error $
+	unless inbackend $ error $
 		"key ("++keyname++") is not present in backend"
 	showStart "fromkey" file
 	return $ Just $ perform file key

Command/Fsck.hs

@@ -24,6 +24,6 @@ start file = isAnnexed file $ \(key, backend) -> do
 perform :: Key -> Backend -> SubCmdPerform
 perform key backend = do
 	success <- Backend.fsckKey backend key
-	if (success)
+	if success
 		then return $ Just $ return True
 		else return Nothing

Command/FsckFile.hs

@@ -24,6 +24,6 @@ start file = isAnnexed file $ \(key, backend) -> do
 perform :: Key -> Backend -> SubCmdPerform
 perform key backend = do
 	success <- Backend.fsckKey backend key
-	if (success)
+	if success
 		then return $ Just $ return True
 		else return Nothing

Command/Get.hs

@@ -20,7 +20,7 @@ seek = [withFilesInGit start]
 start :: SubCmdStartString
 start file = isAnnexed file $ \(key, backend) -> do
 	inannex <- inAnnex key
-	if (inannex)
+	if inannex
 		then return Nothing
 		else do
 			showStart "get" file
@@ -29,7 +29,7 @@ start file = isAnnexed file $ \(key, backend) -> do
 perform :: Key -> Backend -> SubCmdPerform
 perform key backend = do
 	ok <- getViaTmp key (Backend.retrieveKeyFile backend key)
-	if (ok)
+	if ok
 		then return $ Just $ return True -- no cleanup needed
 		else return Nothing
 

Command/Init.hs

@@ -25,8 +25,8 @@ seek = [withString start]
 {- Stores description for the repository etc. -}
 start :: SubCmdStartString
 start description = do
-	when (null description) $ error $
-		"please specify a description of this repository\n"
+	when (null description) $
+		error "please specify a description of this repository\n"
 	showStart "init" description
 	return $ Just $ perform description
 
@@ -38,7 +38,7 @@ perform description = do
 	setVersion
 	liftIO $ gitAttributes g
 	liftIO $ gitPreCommitHook g
-	return $ Just $ cleanup
+	return $ Just cleanup
 
 cleanup :: SubCmdCleanup
 cleanup = do
@@ -53,7 +53,7 @@ cleanup = do
 gitAttributes :: Git.Repo -> IO ()
 gitAttributes repo = do
 	exists <- doesFileExist attributes
-	if (not exists)
+	if not exists
 		then do
 			writeFile attributes $ attrLine ++ "\n"
 			commit
@@ -76,7 +76,7 @@ gitPreCommitHook repo = do
 	let hook = Git.workTree repo ++ "/" ++ Git.gitDir repo ++
 		"/hooks/pre-commit"
 	exists <- doesFileExist hook
-	if (exists)
+	if exists
 		then putStrLn $ "pre-commit hook (" ++ hook ++ ") already exists, not configuring"
 		else do
 			writeFile hook $ "#!/bin/sh\n" ++

Command/Move.hs

@@ -7,8 +7,7 @@
 
 module Command.Move where
 
-import Control.Monad.State (liftIO)
-import Monad (when)
+import Control.Monad.State (liftIO, when)
 
 import Command
 import qualified Command.Drop
@@ -53,7 +52,7 @@ start file = do
 moveToStart :: SubCmdStartString
 moveToStart file = isAnnexed file $ \(key, _) -> do
 	ishere <- inAnnex key
-	if (not ishere)
+	if not ishere
 		then return Nothing -- not here, so nothing to do
 		else do
 			showStart "move" file
@@ -68,10 +67,10 @@ moveToPerform key = do
 			showNote $ show err
 			return Nothing
 		Right False -> do
-			showNote $ "moving to " ++ (Git.repoDescribe remote) ++ "..."
-			let tmpfile = (annexTmpLocation remote) ++ (keyFile key)
+			showNote $ "moving to " ++ Git.repoDescribe remote ++ "..."
+			let tmpfile = annexTmpLocation remote ++ keyFile key
 			ok <- Remotes.copyToRemote remote key tmpfile
-			if (ok)
+			if ok
 				then return $ Just $ moveToCleanup remote key tmpfile
 				else return Nothing -- failed
 		Right True -> return $ Just $ Command.Drop.cleanup key
@@ -79,7 +78,7 @@ moveToCleanup :: Git.Repo -> Key -> FilePath -> SubCmdCleanup
 moveToCleanup remote key tmpfile = do
 	-- Tell remote to use the transferred content.
 	ok <- Remotes.runCmd remote "git-annex" ["setkey", "--quiet",
-		"--backend=" ++ (backendName key),
+		"--backend=" ++ backendName key,
 		"--key=" ++ keyName key,
 		tmpfile]
 	if ok
@@ -104,7 +103,7 @@ moveFromStart :: SubCmdStartString
 moveFromStart file = isAnnexed file $ \(key, _) -> do
 	remote <- Remotes.commandLineRemote
 	l <- Remotes.keyPossibilities key
-	if (null $ filter (\r -> Remotes.same r remote) l)
+	if null $ filter (\r -> Remotes.same r remote) l
 		then return Nothing
 		else do
 			showStart "move" file
@@ -113,18 +112,18 @@ moveFromPerform :: Key -> SubCmdPerform
 moveFromPerform key = do
 	remote <- Remotes.commandLineRemote
 	ishere <- inAnnex key
-	if (ishere)
+	if ishere
 		then return $ Just $ moveFromCleanup remote key
 		else do
-			showNote $ "moving from " ++ (Git.repoDescribe remote) ++ "..."
-			ok <- getViaTmp key (Remotes.copyFromRemote remote key)
-			if (ok)
+			showNote $ "moving from " ++ Git.repoDescribe remote ++ "..."
+			ok <- getViaTmp key $ Remotes.copyFromRemote remote key
+			if ok
 				then return $ Just $ moveFromCleanup remote key
 				else return Nothing -- fail
 moveFromCleanup :: Git.Repo -> Key -> SubCmdCleanup
 moveFromCleanup remote key = do
 	ok <- Remotes.runCmd remote "git-annex" ["dropkey", "--quiet", "--force",
-		"--backend=" ++ (backendName key),
+		"--backend=" ++ backendName key,
 		keyName key]
 	when ok $ do
 		-- Record locally that the key is not on the remote.

Command/PreCommit.hs

@@ -28,7 +28,7 @@ start file = return $ Just $ perform file
 perform :: FilePath -> SubCmdPerform
 perform file = do
 	pairs <- Backend.chooseBackends [file]
-	ok <- doSubCmd $ Command.Add.start $ pairs !! 0
+	ok <- doSubCmd $ Command.Add.start $ head pairs
 	if ok
 		then return $ Just $ cleanup file
 		else error $ "failed to add " ++ file ++ "; canceling commit"

Command/SetKey.hs

@@ -28,7 +28,7 @@ start file = do
 	keyname <- Annex.flagGet "key"
 	when (null keyname) $ error "please specify the key with --key"
 	backends <- Backend.list
-	let key = genKey (backends !! 0) keyname
+	let key = genKey (head backends) keyname
 	showStart "setkey" file
 	return $ Just $ perform file key
 perform :: FilePath -> Key -> SubCmdPerform

Command/Unannex.hs

@@ -34,7 +34,7 @@ perform file key backend = do
 	-- force backend to always remove
 	Annex.flagChange "force" $ FlagBool True
 	ok <- Backend.removeKey backend key
-	if (ok)
+	if ok
 		then return $ Just $ cleanup file key
 		else return Nothing
 

Command/Unused.hs

@@ -35,7 +35,7 @@ checkUnused :: Annex Bool
 checkUnused = do
 	showNote "checking for unused data..."
 	unused <- unusedKeys
-	if (null unused)
+	if null unused
 		then return True
 		else do
 			let list = number 1 unused
@@ -48,9 +48,10 @@ checkUnused = do
 		w u = unlines $
 			["Some annexed data is no longer pointed to by any files in the repository:",
 			 "  NUMBER  KEY"]
-			++ (map (\(n, k) -> "  " ++ (pad 6 $ show n) ++ "  " ++ show k) u) ++
+			++ map cols u ++
 			["(To see where data was previously used, try: git log --stat -S'KEY')",
 			 "(To remove unwanted data: git-annex dropunused NUMBER)"]
+		cols (n,k) = "  " ++ pad 6 (show n) ++ "  " ++ show k
 		pad n s = s ++ replicate (n - length s) ' '
 
 number :: Integer -> [a] -> [(Integer, a)]
@@ -71,8 +72,7 @@ unusedKeys = do
 	let unused_m = remove referenced present_m
 	return $ M.keys unused_m
 	where
-		remove [] m = m
-		remove (x:xs) m = remove xs $ M.delete x m
+		remove a b = foldl (flip M.delete) b a
 
 existsMap :: Ord k => [k] -> M.Map k Int
 existsMap l = M.fromList $ map (\k -> (k, 1)) l