git-annex/Command/DropUnused.hs
Joey Hess 90f7c4b6a2
add VerifiedCopy data type
There should be no behavior changes in this commit, it just adds a more
expressive data type and adjusts code that had been passing around a [UUID]
or sometimes a Maybe Remote to instead use [VerifiedCopy].

Although, since some functions were taking two different [UUID] lists,
there's some potential for me to have gotten it horribly wrong.
2015-10-08 16:55:11 -04:00

53 lines
1.6 KiB
Haskell

{- git-annex command
-
- Copyright 2010,2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.DropUnused where
import Common.Annex
import Command
import qualified Command.Drop
import qualified Remote
import qualified Git
import Command.Unused (withUnusedMaps, UnusedMaps(..), startUnused)
import Annex.NumCopies
cmd :: Command
cmd = command "dropunused" SectionMaintenance
"drop unused file content"
(paramRepeating paramNumRange) (seek <$$> optParser)
data DropUnusedOptions = DropUnusedOptions
{ rangesToDrop :: CmdParams
, dropFrom :: Maybe (DeferredParse Remote)
}
optParser :: CmdParamsDesc -> Parser DropUnusedOptions
optParser desc = DropUnusedOptions
<$> cmdParams desc
<*> optional (Command.Drop.parseDropFromOption)
seek :: DropUnusedOptions -> CommandSeek
seek o = do
numcopies <- getNumCopies
from <- maybe (pure Nothing) (Just <$$> getParsed) (dropFrom o)
withUnusedMaps (start from numcopies) (rangesToDrop o)
start :: Maybe Remote -> NumCopies -> UnusedMaps -> Int -> CommandStart
start from numcopies = startUnused "dropunused" (perform from numcopies) (performOther gitAnnexBadLocation) (performOther gitAnnexTmpObjectLocation)
perform :: Maybe Remote -> NumCopies -> Key -> CommandPerform
perform from numcopies key = case from of
Just r -> do
showAction $ "from " ++ Remote.name r
Command.Drop.performRemote key Nothing numcopies r
Nothing -> Command.Drop.performLocal key Nothing numcopies []
performOther :: (Key -> Git.Repo -> FilePath) -> Key -> CommandPerform
performOther filespec key = do
f <- fromRepo $ filespec key
liftIO $ nukeFile f
next $ return True