git-annex/Command/Lock.hs

34 lines
881 B
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Lock where
import Common.Annex
import Command
import qualified Annex.Queue
import Backend
command :: [Command]
command = [Command "lock" paramPaths needsRepo seek "undo unlock command"]
seek :: [CommandSeek]
seek = [withFilesUnlocked start, withFilesUnlockedToBeCommitted start]
{- Undo unlock -}
start :: BackendFile -> CommandStart
start (_, file) = do
showStart "lock" file
next $ perform file
perform :: FilePath -> CommandPerform
perform file = do
liftIO $ removeFile file
-- Checkout from HEAD to get rid of any changes that might be
-- staged in the index, and get back to the previous symlink to
-- the content.
Annex.Queue.add "checkout" [Param "HEAD", Param "--"] [file]
next $ return True -- no cleanup needed