indent with tabs not spaces

Found these with:
git grep "^  " $(find -type  f -name \*.hs) |grep -v ':  where'

Unfortunately there is some inline hamlet that cannot use tabs for
indentation.

Also, Assistant/WebApp/Bootstrap3.hs is a copy of a module and so I'm
leaving it as-is.

Annex/TaggedPush.hs

@@ -49,13 +49,13 @@ fromTaggedBranch b = case split "/" $ Git.fromRef b of
 
 taggedPush :: UUID -> Maybe String -> Git.Ref -> Remote -> Git.Repo -> IO Bool
 taggedPush u info branch remote = Git.Command.runBool
-        [ Param "push"
-        , Param $ Remote.name remote
+	[ Param "push"
+	, Param $ Remote.name remote
 	{- Using forcePush here is safe because we "own" the tagged branch
 	 - we're pushing; it has no other writers. Ensures it is pushed
 	 - even if it has been rewritten by a transition. -}
-        , Param $ Git.Branch.forcePush $ refspec Annex.Branch.name
-        , Param $ refspec branch
-        ]
+	, Param $ Git.Branch.forcePush $ refspec Annex.Branch.name
+	, Param $ refspec branch
+	]
   where
 	refspec b = Git.fromRef b ++ ":" ++ Git.fromRef (toTaggedBranch u info b)

Assistant/Threads/Watcher.hs

@@ -72,7 +72,7 @@ needLsof = error $ unlines
 
 {- A special exception that can be thrown to pause or resume the watcher. -}
 data WatcherControl = PauseWatcher | ResumeWatcher
-        deriving (Show, Eq, Typeable)
+	deriving (Show, Eq, Typeable)
 
 instance E.Exception WatcherControl
 

Assistant/WebApp/Configurators/IA.hs

@@ -101,8 +101,8 @@ itemNameHelp = [whamlet|
 
 iaCredsAForm :: Maybe CredPair -> MkAForm AWS.AWSCreds
 iaCredsAForm defcreds = AWS.AWSCreds
-        <$> accessKeyIDFieldWithHelp (T.pack . fst <$> defcreds)
-        <*> AWS.secretAccessKeyField (T.pack . snd <$> defcreds)
+	<$> accessKeyIDFieldWithHelp (T.pack . fst <$> defcreds)
+	<*> AWS.secretAccessKeyField (T.pack . snd <$> defcreds)
 
 #ifdef WITH_S3
 previouslyUsedIACreds :: Annex (Maybe CredPair)

Assistant/WebApp/RepoId.hs

@@ -16,7 +16,7 @@ import qualified Remote
 data RepoId
 	= RepoUUID UUID
 	| RepoName RemoteName
-  deriving (Eq, Ord, Show, Read)
+	deriving (Eq, Ord, Show, Read)
 
 mkRepoId :: Remote -> RepoId
 mkRepoId r = case Remote.uuid r of

Build/Standalone.hs

@@ -40,7 +40,7 @@ main :: IO ()
 main = getArgs >>= go
   where
 	go [] = error "specify topdir"
-        go (topdir:_) = do
+	go (topdir:_) = do
 		let dir = progDir topdir
 		createDirectoryIfMissing True dir
 		installed <- forM bundledPrograms $ installProg dir

Command/Fsck.hs

@@ -282,7 +282,7 @@ verifyDirectMode key file = do
  - the key's metadata, if available.
  -
  - Not checked in direct mode, because files can be changed directly.
-  -}
+ -}
 checkKeySize :: Key -> Annex Bool
 checkKeySize key = ifM isDirect
 	( return True

Command/List.hs

@@ -71,15 +71,15 @@ type Present = Bool
 header :: [(RemoteName, TrustLevel)] -> String
 header remotes = unlines (zipWith formatheader [0..] remotes) ++ pipes (length remotes)
   where
-    formatheader n (remotename, trustlevel) = pipes n ++ remotename ++ trust trustlevel
-    pipes = flip replicate '|'
-    trust UnTrusted = " (untrusted)"
-    trust _ = ""
+	formatheader n (remotename, trustlevel) = pipes n ++ remotename ++ trust trustlevel
+	pipes = flip replicate '|'
+	trust UnTrusted = " (untrusted)"
+	trust _ = ""
 
 format :: [(TrustLevel, Present)] -> FilePath -> String
 format remotes file = thereMap ++ " " ++ file
   where 
-    thereMap = concatMap there remotes
-    there (UnTrusted, True) = "x"
-    there (_, True) = "X"
-    there (_, False) = "_"
+	thereMap = concatMap there remotes
+	there (UnTrusted, True) = "x"
+	there (_, True) = "X"
+	there (_, False) = "_"

Git/DiffTree.hs

@@ -53,7 +53,7 @@ diffIndex ref = diffIndex' ref [Param "--cached"]
 diffWorkTree :: Ref -> Repo -> IO ([DiffTreeItem], IO Bool)
 diffWorkTree ref repo =
 	ifM (Git.Ref.headExists repo)
-                ( diffIndex' ref [] repo
+		( diffIndex' ref [] repo
 		, return ([], return True)
 		)
 

Logs.hs

@@ -90,11 +90,11 @@ locationLogFile key = hashDirLower key ++ keyFile key ++ ".log"
 locationLogFileKey :: FilePath -> Maybe Key
 locationLogFileKey path
 	| ["remote", "web"] `isPrefixOf` splitDirectories dir = Nothing
-        | ext == ".log" = fileKey base
-        | otherwise = Nothing
+	| ext == ".log" = fileKey base
+	| otherwise = Nothing
   where
 	(dir, file) = splitFileName path
-        (base, ext) = splitAt (length file - 4) file
+	(base, ext) = splitAt (length file - 4) file
 
 {- The filename of the url log for a given key. -}
 urlLogFile :: Key -> FilePath

Logs/SingleValue.hs

@@ -60,6 +60,6 @@ getLog = newestValue <$$> readLog
 
 setLog :: (SingleValueSerializable v) => FilePath -> v -> Annex ()
 setLog f v = do
-        now <- liftIO getPOSIXTime
-        let ent = LogEntry now v
+	now <- liftIO getPOSIXTime
+	let ent = LogEntry now v
 	Annex.Branch.change f $ \_old -> showLog (S.singleton ent)

Remote/Helper/Encryptable.hs

@@ -58,7 +58,7 @@ encryptionSetup c = maybe genCipher updateCipher $ extractCipher c
 		Just "shared" -> use "encryption setup" . genSharedCipher
 			=<< highRandomQuality
 		-- hybrid encryption is the default when a keyid is
-                -- specified but no encryption
+		-- specified but no encryption
 		_ | maybe (M.member "keyid" c) (== "hybrid") encryption ->
 			use "encryption setup" . genEncryptedCipher key Hybrid
 				=<< highRandomQuality
@@ -88,10 +88,10 @@ encryptionSetup c = maybe genCipher updateCipher $ extractCipher c
 		(&&) (maybe True ( /= "false") $ M.lookup "highRandomQuality" c)
 			<$> fmap not (Annex.getState Annex.fast)
 	c' = foldr M.delete c
-                -- git-annex used to remove 'encryption' as well, since
-                -- it was redundant; we now need to keep it for
-                -- public-key encryption, hence we leave it on newer
-                -- remotes (while being backward-compatible).
+		-- git-annex used to remove 'encryption' as well, since
+		-- it was redundant; we now need to keep it for
+		-- public-key encryption, hence we leave it on newer
+		-- remotes (while being backward-compatible).
 		[ "keyid", "keyid+", "keyid-", "highRandomQuality" ]
 
 remoteCipher :: RemoteConfig -> Annex (Maybe Cipher)

Remote/Helper/Special.hs

@@ -87,7 +87,7 @@ checkPrepare checker helper k a = ifM (checker k)
 -- Use to acquire a resource when preparing a helper.
 resourcePrepare :: (Key -> (r -> Annex Bool) -> Annex Bool) -> (r -> helper) -> Preparer helper
 resourcePrepare withr helper k a = withr k $ \r ->
-        a (Just (helper r))
+	a (Just (helper r))
 
 -- A Storer that expects to be provided with a file containing
 -- the content of the key to store.

RemoteDaemon/Types.hs

@@ -20,7 +20,7 @@ import Control.Concurrent
 
 -- The URI of a remote is used to uniquely identify it (names change..)
 newtype RemoteURI = RemoteURI URI
-  deriving (Show)
+	deriving (Show)
 
 -- A Transport for a particular git remote consumes some messages
 -- from a Chan, and emits others to another Chan.

Test.hs

@@ -943,12 +943,12 @@ test_remove_conflict_resolution testenv = do
 		length v == 1
 			@? (what ++ " too many variant files in: " ++ show v)
 
- {- Check merge confalict resolution when a file is annexed in one repo,
-  - and checked directly into git in the other repo.
-  -
-  - This test requires indirect mode to set it up, but tests both direct and
-  - indirect mode.
-  -}
+{- Check merge confalict resolution when a file is annexed in one repo,
+ - and checked directly into git in the other repo.
+ -
+ - This test requires indirect mode to set it up, but tests both direct and
+ - indirect mode.
+ -}
 test_nonannexed_file_conflict_resolution :: TestEnv -> Assertion
 test_nonannexed_file_conflict_resolution testenv = do
 	check True False

Types/Crypto.hs

@@ -59,10 +59,10 @@ readMac "HMACSHA512" = Just HmacSha512
 readMac _ = Nothing
 
 calcMac
-  :: Mac	  -- ^ MAC
-  -> L.ByteString -- ^ secret key
-  -> L.ByteString -- ^ message
-  -> String	  -- ^ MAC'ed message, in hexadecimals
+	:: Mac          -- ^ MAC
+	-> L.ByteString -- ^ secret key
+	-> L.ByteString -- ^ message
+	-> String       -- ^ MAC'ed message, in hexadecimal
 calcMac mac = case mac of
 	HmacSha1   -> showDigest $* hmacSha1
 	HmacSha224 -> showDigest $* hmacSha224

Types/ScheduledActivity.hs

@@ -17,7 +17,7 @@ import Data.Either
 data ScheduledActivity 
 	= ScheduledSelfFsck Schedule Duration
 	| ScheduledRemoteFsck UUID Schedule Duration
-  deriving (Eq, Read, Show, Ord)
+	deriving (Eq, Read, Show, Ord)
 
 {- Activities that run on a remote, within a time window, so
  - should be run when the remote gets connected. -}

Utility/HumanTime.hs

@@ -27,7 +27,7 @@ import Control.Applicative
 import qualified Data.Map as M
 
 newtype Duration = Duration { durationSeconds :: Integer }
-  deriving (Eq, Ord, Read, Show)
+	deriving (Eq, Ord, Read, Show)
 
 durationSince :: UTCTime -> IO Duration
 durationSince pasttime = do

Utility/Scheduled.hs

@@ -44,7 +44,7 @@ import Data.Char
 
 {- Some sort of scheduled event. -}
 data Schedule = Schedule Recurrance ScheduledTime
-  deriving (Eq, Read, Show, Ord)
+	deriving (Eq, Read, Show, Ord)
 
 data Recurrance
 	= Daily
@@ -54,7 +54,7 @@ data Recurrance
 	| Divisible Int Recurrance
 	-- ^ Days, Weeks, or Months of the year evenly divisible by a number.
 	-- (Divisible Year is years evenly divisible by a number.)
-  deriving (Eq, Read, Show, Ord)
+	deriving (Eq, Read, Show, Ord)
 
 type WeekDay = Int
 type MonthDay = Int
@@ -63,7 +63,7 @@ type YearDay = Int
 data ScheduledTime
 	= AnyTime
 	| SpecificTime Hour Minute
-  deriving (Eq, Read, Show, Ord)
+	deriving (Eq, Read, Show, Ord)
 
 type Hour = Int
 type Minute = Int
@@ -73,7 +73,7 @@ type Minute = Int
 data NextTime
 	= NextTimeExactly LocalTime
 	| NextTimeWindow LocalTime LocalTime
-  deriving (Eq, Read, Show)
+	deriving (Eq, Read, Show)
 
 startTime :: NextTime -> LocalTime
 startTime (NextTimeExactly t) = t