automatically launch git repository repair

Added a RemoteChecker thread, that waits for problems to be reported with
remotes, and checks if their git repository is in need of repair.

Currently, only failures to sync with the remote cause a problem to be
reported. This seems enough, but we'll see.

Plugging in a removable drive with a repository on it that is corrupted
does automatically repair the repository, as long as the corruption causes
git push or git pull to fail. Some types of corruption do not, eg
missing/corrupt objects for blobs that git push doesn't need to look at.

So, this is not really a replacement for scheduled git repository fscking.
But it does make the assistant more robust.

This commit is sponsored by Fernando Jimenez.

1 files changed, 12 insertions, 0 deletions

diff --git a/Assistant/Alert.hs b/Assistant/Alert.hs
index 9e248571d..108bbdf26 100644
--- a/Assistant/Alert.hs
+++ b/Assistant/Alert.hs
@@ -19,6 +19,7 @@ import Git.Remote (RemoteName)
 
 import Data.String
 import qualified Data.Text as T
+import qualified Control.Exception as E
 
 #ifdef WITH_WEBAPP
 import Assistant.Monad
@@ -174,6 +175,17 @@ fsckAlert button n = baseActivityAlert
 	, alertButton = Just button
 	}
 
+showFscking :: UrlRenderer -> Maybe RemoteName -> IO (Either E.SomeException a) -> Assistant a
+showFscking urlrenderer remotename a = do
+#ifdef WITH_WEBAPP
+	button <- mkAlertButton False (T.pack "Configure") urlrenderer ConfigFsckR
+	r <- alertDuring (fsckAlert button remotename) $
+		liftIO a
+	either (liftIO . E.throwIO) return r
+#else
+	a
+#endif
+
 brokenRepositoryAlert :: AlertButton -> Alert
 brokenRepositoryAlert = errorAlert "Serious problems have been detected with your repository. This needs your immediate attention!"