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|
{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.DropKey where
import Command
import qualified Annex
import qualified Backend
import LocationLog
import Types
import Content
import Messages
command :: [Command]
command = [Command "dropkey" (paramRepeating paramKey) seek
"drops annexed content for specified keys"]
seek :: [CommandSeek]
seek = [withKeys start]
{- Drops cached content for a key. -}
start :: CommandStartString
start keyname = do
backends <- Backend.list
let key = genKey (head backends) keyname
present <- inAnnex key
force <- Annex.getState Annex.force
if not present
then return Nothing
else if not force
then error "dropkey is can cause data loss; use --force if you're sure you want to do this"
else do
showStart "dropkey" keyname
return $ Just $ perform key
perform :: Key -> CommandPerform
perform key = do
removeAnnex key
return $ Just $ cleanup key
cleanup :: Key -> CommandCleanup
cleanup key = do
logStatus key ValueMissing
return True
|
