52 lines
1.3 KiB
Haskell
52 lines
1.3 KiB
Haskell
{- 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.FromKey where
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import Control.Monad.State (liftIO)
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import System.Posix.Files
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import System.Directory
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import Control.Monad (when, unless)
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import Command
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import qualified Annex
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import Utility
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import qualified Backend
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import Types
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import Core
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import Messages
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command :: [Command]
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command = [Command "fromkey" (paramRepeating paramKey) seek
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"adds a file using a specific key"]
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seek :: [CommandSeek]
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seek = [withFilesMissing start]
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{- Adds a file pointing at a manually-specified key -}
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start :: CommandStartString
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start file = do
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keyname <- Annex.flagGet "key"
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when (null keyname) $ error "please specify the key with --key"
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backends <- Backend.list
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let key = genKey (head backends) keyname
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inbackend <- Backend.hasKey key
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unless inbackend $ error $
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"key ("++keyname++") is not present in backend"
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showStart "fromkey" file
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return $ Just $ perform file key
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perform :: FilePath -> Key -> CommandPerform
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perform file key = do
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link <- calcGitLink file key
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liftIO $ createDirectoryIfMissing True (parentDir file)
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liftIO $ createSymbolicLink link file
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return $ Just $ cleanup file
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cleanup :: FilePath -> CommandCleanup
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cleanup file = do
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Annex.queue "add" ["--"] file
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return True
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