enableremote: Remove annex-ignore configuration from a remote.

CHANGELOG

@@ -22,6 +22,7 @@ git-annex (6.20160512) UNRELEASED; urgency=medium
   * enableremote: Can now be used to explicitly enable git-annex to use
     git remotes. Using the command this way prevents other git-annex
     commands from probing new git remotes to auto-enable them.
+  * enableremote: Remove annex-ignore configuration from a remote.
   * Support building with ghc 8.0.1.
   * Pass the various gnupg-options configs to gpg in several cases where
     they were not before. Most notably, gnupg-decrypt-options is now

Command/EnableRemote.hs

@@ -11,13 +11,14 @@ import Command
 import qualified Annex
 import qualified Logs.Remote
 import qualified Types.Remote as R
-import qualified Git.Types as Git
+import qualified Git
 import qualified Annex.SpecialRemote
 import qualified Remote
 import qualified Types.Remote as Remote
 import qualified Remote.Git
 import Logs.UUID
 import Annex.UUID
+import Config
 
 import qualified Data.Map as M
 
@@ -45,9 +46,10 @@ startNormalRemote :: RemoteName -> Git.Repo -> CommandStart
 startNormalRemote name r = do
 	showStart "enableremote" name
 	next $ next $ do
+		setRemoteIgnore r False
 		r' <- Remote.Git.configRead False r
 		u <- getRepoUUID r'
-		return (u /= NoUUID)
+		return $ u /= NoUUID
 
 startSpecialRemote :: RemoteName -> Remote.RemoteConfig -> Maybe (UUID, Remote.RemoteConfig) -> CommandStart
 startSpecialRemote name config Nothing = do
@@ -74,6 +76,10 @@ performSpecialRemote t u c gc = do
 cleanupSpecialRemote :: UUID -> R.RemoteConfig -> CommandCleanup
 cleanupSpecialRemote u c = do
 	Logs.Remote.configSet u c
+	mr <- Remote.byUUID u
+	case mr of
+		Nothing -> noop
+		Just r -> setRemoteIgnore (R.repo r) False
 	return True
 
 unknownNameError :: String -> Annex a
@@ -85,8 +91,12 @@ unknownNameError prefix = do
 			else Remote.prettyPrintUUIDsDescs
 				"known special remotes"
 				descm (M.keys m)
-	nouuids <- filterM (\r -> (==) NoUUID <$> getRepoUUID r)
-		=<< Annex.fromRepo Git.remotes
-	let nouuidmsg = unlines $ map ("\t" ++) $
-		mapMaybe Git.remoteName nouuids
-	error $ concat $ filter (not . null) [prefix ++ "\n", nouuidmsg, specialmsg]
+	disabledremotes <- filterM isdisabled =<< Annex.fromRepo Git.remotes
+	let remotesmsg = unlines $ map ("\t" ++) $
+		mapMaybe Git.remoteName disabledremotes
+	error $ concat $ filter (not . null) [prefix ++ "\n", remotesmsg, specialmsg]
+  where
+	isdisabled r = anyM id
+		[ (==) NoUUID <$> getRepoUUID r
+		, remoteAnnexIgnore <$> Annex.getRemoteGitConfig r
+		]

Config.hs

@@ -80,6 +80,12 @@ setRemoteCost r c = setConfig (remoteConfig r "cost") (show c)
 setRemoteAvailability :: Git.Repo -> Availability -> Annex ()
 setRemoteAvailability r c = setConfig (remoteConfig r "availability") (show c)
 
+setRemoteIgnore :: Git.Repo -> Bool -> Annex ()
+setRemoteIgnore r b = setConfig (remoteConfig r "ignore") (Git.Config.boolConfig b)
+
+setRemoteBare :: Git.Repo -> Bool -> Annex ()
+setRemoteBare r b = setConfig (remoteConfig r "bare") (Git.Config.boolConfig b)
+
 isDirect :: Annex Bool
 isDirect = annexDirect <$> Annex.getGitConfig
 

Remote/Git.hs

@@ -247,7 +247,7 @@ tryGitConfigRead autoinit r
 				-- Cache when http remote is not bare for
 				-- optimisation.
 				unless (Git.Config.isBare r') $
-					setremote "annex-bare" (Git.Config.boolConfig False)
+					setremote setRemoteBare False
 				return r'
 
 	store = observe $ \r' -> do
@@ -274,20 +274,17 @@ tryGitConfigRead autoinit r
 			return r
 	
 	set_ignore msg longmessage = do
-		let k = "annex-ignore"
 		case Git.remoteName r of
 			Nothing -> noop
 			Just n -> do
-				warning $ "Remote " ++ n ++ " " ++ msg ++ "; setting " ++ k
+				warning $ "Remote " ++ n ++ " " ++ msg ++ "; setting annex-ignore"
 				when longmessage $
-					warning $ "This could be a problem with the git-annex installation on the remote. Please make sure that git-annex-shell is available in PATH when you ssh into the remote. Once you have fixed the git-annex installation, run: git config remote." ++ n ++ "." ++ k ++ " false"
-		setremote k (Git.Config.boolConfig True)
+					warning $ "This could be a problem with the git-annex installation on the remote. Please make sure that git-annex-shell is available in PATH when you ssh into the remote. Once you have fixed the git-annex installation, run: git annex enableremote " ++ n
+		setremote setRemoteIgnore True
 	
-	setremote k v = case Git.remoteName r of
+	setremote setter v = case Git.remoteName r of
 		Nothing -> noop
-		Just n -> do
-			let k' = "remote." ++ n ++ "." ++ k
-			inRepo $ Git.Command.run [Param "config", Param k', Param v]
+		Just n -> setter r v
 	
 	handlegcrypt Nothing = return r
 	handlegcrypt (Just _cacheduuid) = do

doc/git-annex-enableremote.mdwn

@@ -59,6 +59,9 @@ a new clone, it will will attempt to enable the special remote. Of course,
 this works best when the special remote does not need anything special
 to be done to get it enabled.
 
+(This command also can be used to enable a remote that git-annex has been
+prevented from using by the `remote.<name>.annex-ignore` setting.)
+
 # SEE ALSO
 
 [[git-annex]](1)