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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.FromKey where
import Control.Monad.State (liftIO)
import System.Posix.Files
import System.Directory
import Control.Monad (unless)
import Command
import qualified Annex
import Utility
import qualified Backend
import Types
import Content
import Messages
command :: [Command]
command = [Command "fromkey" paramPath seek
"adds a file using a specific key"]
seek :: [CommandSeek]
seek = [withFilesMissing start]
{- Adds a file pointing at a manually-specified key -}
start :: CommandStartString
start file = do
key <- cmdlineKey
inbackend <- Backend.hasKey key
unless inbackend $ error $
"key ("++keyName key++") is not present in backend"
showStart "fromkey" file
return $ Just $ perform file
perform :: FilePath -> CommandPerform
perform file = do
key <- cmdlineKey
link <- calcGitLink file key
liftIO $ createDirectoryIfMissing True (parentDir file)
liftIO $ createSymbolicLink link file
return $ Just $ cleanup file
cleanup :: FilePath -> CommandCleanup
cleanup file = do
Annex.queue "add" ["--"] file
return True
|
