git-annex/Command/FromKey.hs
Joey Hess 0a11b35d89 extend Git.Queue to be able to queue more than simple git commands
While I was in there, I noticed and fixed a bug in the queue size
calculations. It was never encountered only because Queue.add was
only ever run with 1 file in the list.
2012-06-07 15:19:44 -04:00

43 lines
1.1 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.FromKey where
import Common.Annex
import Command
import qualified Annex.Queue
import Annex.Content
import Types.Key
def :: [Command]
def = [command "fromkey" (paramPair paramKey paramPath) seek
"adds a file using a specific key"]
seek :: [CommandSeek]
seek = [withWords start]
start :: [String] -> CommandStart
start (keyname:file:[]) = notBareRepo $ do
let key = fromMaybe (error "bad key") $ readKey keyname
inbackend <- inAnnex key
unless inbackend $ error $
"key ("++ keyname ++") is not present in backend"
showStart "fromkey" file
next $ perform key file
start _ = error "specify a key and a dest file"
perform :: Key -> FilePath -> CommandPerform
perform key file = do
link <- calcGitLink file key
liftIO $ createDirectoryIfMissing True (parentDir file)
liftIO $ createSymbolicLink link file
next $ cleanup file
cleanup :: FilePath -> CommandCleanup
cleanup file = do
Annex.Queue.addCommand "add" [Param "--"] [file]
return True