48 lines
1 KiB
Haskell
48 lines
1 KiB
Haskell
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{- git-annex command
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-
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- Copyright 2010 Joey Hess <joey@kitenet.net>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.DropKey where
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import Control.Monad.State (liftIO)
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import System.Directory
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import Command
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import qualified Annex
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import Locations
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import qualified Backend
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import LocationLog
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import Types
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import Core
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{- Drops cached content for a key. -}
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start :: SubCmdStartString
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start keyname = do
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backends <- Backend.list
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let key = genKey (backends !! 0) keyname
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present <- inAnnex key
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force <- Annex.flagIsSet "force"
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if (not present)
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then return Nothing
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else if (not force)
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then error "dropkey is can cause data loss; use --force if you're sure you want to do this"
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else do
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showStart "dropkey" keyname
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return $ Just $ perform key
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perform :: Key -> SubCmdPerform
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perform key = do
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g <- Annex.gitRepo
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let loc = annexLocation g key
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liftIO $ removeFile loc
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return $ Just $ cleanup key
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cleanup :: Key -> SubCmdCleanup
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cleanup key = do
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logStatus key ValueMissing
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return True
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