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|
{- git-annex assistant remote deletion utilities
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Assistant.DeleteRemote where
import Assistant.Common
import Assistant.Types.UrlRenderer
import Assistant.TransferQueue
import Types.Transfer
import Logs.Location
import Assistant.DaemonStatus
import qualified Remote
import Remote.List
import qualified Git.Remote.Remove
import Logs.Trust
import qualified Annex
#ifdef WITH_WEBAPP
import Assistant.WebApp.Types
import Assistant.Alert
import qualified Data.Text as T
#endif
{- Removes a remote (but leave the repository as-is), and returns the old
- Remote data. -}
disableRemote :: UUID -> Assistant Remote
disableRemote uuid = do
remote <- fromMaybe (error "unknown remote")
<$> liftAnnex (Remote.remoteFromUUID uuid)
liftAnnex $ do
inRepo $ Git.Remote.Remove.remove (Remote.name remote)
void $ remoteListRefresh
updateSyncRemotes
return remote
{- Removes a remote, marking it dead .-}
removeRemote :: UUID -> Assistant Remote
removeRemote uuid = do
liftAnnex $ trustSet uuid DeadTrusted
disableRemote uuid
{- Called when a Remote is probably empty, to remove it.
-
- This does one last check for any objects remaining in the Remote,
- and if there are any, queues Downloads of them, and defers removing
- the remote for later. This is to catch any objects not referred to
- in keys in the current branch.
-}
removableRemote :: UrlRenderer -> UUID -> Assistant ()
removableRemote urlrenderer uuid = do
keys <- getkeys
if null keys
then finishRemovingRemote urlrenderer uuid
else do
r <- fromMaybe (error "unknown remote")
<$> liftAnnex (Remote.remoteFromUUID uuid)
mapM_ (queueremaining r) keys
where
queueremaining r k =
queueTransferWhenSmall "remaining object in unwanted remote"
(AssociatedFile Nothing) (Transfer Download uuid k) r
{- Scanning for keys can take a long time; do not tie up
- the Annex monad while doing it, so other threads continue to
- run. -}
getkeys = do
a <- liftAnnex $ Annex.withCurrentState $ loggedKeysFor uuid
liftIO a
{- With the webapp, this asks the user to click on a button to finish
- removing the remote.
-
- Without the webapp, just do the removal now.
-}
finishRemovingRemote :: UrlRenderer -> UUID -> Assistant ()
#ifdef WITH_WEBAPP
finishRemovingRemote urlrenderer uuid = do
desc <- liftAnnex $ Remote.prettyUUID uuid
button <- mkAlertButton True (T.pack "Finish deletion process") urlrenderer $
FinishDeleteRepositoryR uuid
void $ addAlert $ remoteRemovalAlert desc button
#else
finishRemovingRemote _ uuid = void $ removeRemote uuid
#endif
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