git-annex/Command/Uninit.hs
2011-12-14 15:56:11 -04:00

63 lines
1.7 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Uninit where
import qualified Data.ByteString.Lazy.Char8 as B
import Common.Annex
import Command
import qualified Git
import qualified Git.Command
import qualified Annex
import qualified Command.Unannex
import Init
import qualified Annex.Branch
import Annex.Content
def :: [Command]
def = [addCheck check $ command "uninit" paramPaths seek
"de-initialize git-annex and clean out repository"]
check :: Annex ()
check = do
b <- current_branch
when (b == Annex.Branch.name) $ error $
"cannot uninit when the " ++ show b ++ " branch is checked out"
where
current_branch = Git.Ref . head . lines . B.unpack <$> revhead
revhead = inRepo $ Git.Command.pipeRead
[Params "rev-parse --abbrev-ref HEAD"]
seek :: [CommandSeek]
seek = [withFilesInGit $ whenAnnexed startUnannex, withNothing start]
startUnannex :: FilePath -> (Key, Backend Annex) -> CommandStart
startUnannex file info = do
-- Force fast mode before running unannex. This way, if multiple
-- files link to a key, it will be left in the annex and hardlinked
-- to by each.
Annex.changeState $ \s -> s { Annex.fast = True }
Command.Unannex.start file info
start :: CommandStart
start = next perform
perform :: CommandPerform
perform = next cleanup
cleanup :: CommandCleanup
cleanup = do
annexdir <- fromRepo gitAnnexDir
uninitialize
mapM_ removeAnnex =<< getKeysPresent
liftIO $ removeDirectoryRecursive annexdir
-- avoid normal shutdown
saveState
inRepo $ Git.Command.run "branch"
[Param "-D", Param $ show Annex.Branch.name]
liftIO exitSuccess