git-annex/Command/DropUnused.hs

44 lines
1.3 KiB
Haskell

{- git-annex command
-
- Copyright 2010,2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.DropUnused where
import Common.Annex
import Command
import qualified Annex
import qualified Command.Drop
import qualified Remote
import qualified Git
import qualified Option
import Command.Unused (withUnusedMaps, UnusedMaps(..), startUnused)
def :: [Command]
def = [withOptions [Command.Drop.fromOption] $
command "dropunused" (paramRepeating paramNumRange)
seek SectionMaintenance "drop unused file content"]
seek :: [CommandSeek]
seek = [withUnusedMaps start]
start :: UnusedMaps -> Int -> CommandStart
start = startUnused "dropunused" perform (performOther gitAnnexBadLocation) (performOther gitAnnexTmpLocation)
perform :: Key -> CommandPerform
perform key = maybe droplocal dropremote =<< Remote.byNameWithUUID =<< from
where
dropremote r = do
showAction $ "from " ++ Remote.name r
ok <- Remote.removeKey r key
next $ Command.Drop.cleanupRemote key r ok
droplocal = Command.Drop.performLocal key (Just 0) Nothing -- force drop
from = Annex.getField $ Option.name Command.Drop.fromOption
performOther :: (Key -> Git.Repo -> FilePath) -> Key -> CommandPerform
performOther filespec key = do
f <- fromRepo $ filespec key
liftIO $ nukeFile f
next $ return True