Fix use of several config settings

annex.ssh-options, annex.rsync-options, annex.bup-split-options.

And adjust types to avoid the bugs that broke several config settings
recently. Now "annex." prefixing is enforced at the type level.

Annex/Content.hs

@@ -304,12 +304,12 @@ saveState oneshot = doSideAction $ do
 			( Annex.Branch.commit "update" , Annex.Branch.stage)
 	where
 		alwayscommit = fromMaybe True . Git.configTrue
-			<$> getConfig "annex.alwayscommit" ""
+			<$> getConfig (annexConfig "alwayscommit") ""
 
 {- Downloads content from any of a list of urls. -}
 downloadUrl :: [Url.URLString] -> FilePath -> Annex Bool
 downloadUrl urls file = do
-	o <- map Param . words <$> getConfig "annex.web-options" ""
+	o <- map Param . words <$> getConfig (annexConfig "web-options") ""
 	headers <- getHttpHeaders
 	liftIO $ anyM (\u -> Url.download u headers o file) urls
 

Annex/Queue.hs

@@ -46,7 +46,7 @@ new = do
 	store q
 	return q
 	where
-		queuesize = readish <$> getConfig "annex.queuesize" ""
+		queuesize = readish <$> getConfig (annexConfig "queuesize") ""
 
 store :: Git.Queue.Queue -> Annex ()
 store q = changeState $ \s -> s { repoqueue = Just q }

Annex/Ssh.hs

@@ -48,7 +48,7 @@ sshInfo (host, port) = ifM caching
 	where
 		caching = fromMaybe SysConfig.sshconnectioncaching 
 			. Git.configTrue
-			<$> getConfig "annex.sshcaching" ""
+			<$> getConfig (annexConfig "sshcaching") ""
 
 cacheParams :: FilePath -> [CommandParam]
 cacheParams socketfile =

Annex/UUID.hs

@@ -23,12 +23,11 @@ module Annex.UUID (
 import Common.Annex
 import qualified Git
 import qualified Git.Config
-import qualified Git.Command
 import qualified Build.SysConfig as SysConfig
 import Config
 
-configkey :: String
-configkey = "annex.uuid"
+configkey :: ConfigKey
+configkey = annexConfig "uuid"
 
 {- Generates a UUID. There is a library for this, but it's not packaged,
  - so use the command line tool. -}
@@ -64,16 +63,17 @@ getRepoUUID r = do
 		cachekey = remoteConfig r "uuid"
 
 removeRepoUUID :: Annex ()
-removeRepoUUID = inRepo $ Git.Command.run "config"
-	[Param "--unset", Param configkey]
+removeRepoUUID = unsetConfig configkey
 
 getUncachedUUID :: Git.Repo -> UUID
-getUncachedUUID = toUUID . Git.Config.get configkey ""
+getUncachedUUID = toUUID . Git.Config.get key ""
+	where
+		(ConfigKey key) = configkey
 
 {- Make sure that the repo has an annex.uuid setting. -}
 prepUUID :: Annex ()
 prepUUID = whenM ((==) NoUUID <$> getUUID) $
 	storeUUID configkey =<< liftIO genUUID
 
-storeUUID :: String -> UUID -> Annex ()
+storeUUID :: ConfigKey -> UUID -> Annex ()
 storeUUID configfield = setConfig configfield . fromUUID

Annex/Version.hs

@@ -21,8 +21,8 @@ supportedVersions = [defaultVersion]
 upgradableVersions :: [Version]
 upgradableVersions = ["0", "1", "2"]
 
-versionField :: String
-versionField = "annex.version"
+versionField :: ConfigKey
+versionField = annexConfig "version"
 
 getVersion :: Annex (Maybe Version)
 getVersion = handle <$> getConfig versionField ""