git-annex/Command/SendKey.hs
Joey Hess 5f977cc725 directory special remote: Made more efficient and robust.
Files are now written to a tmp directory in the remote, and once all
chunks are written, etc, it's moved into the final place atomically.

For now, checkpresent still checks every single chunk of a file, because
the old method could leave partially transferred files with some chunks
present and others not.
2012-11-19 13:18:23 -04:00

42 lines
1 KiB
Haskell

{- git-annex command
-
- Copyright 2010,2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.SendKey where
import Common.Annex
import Command
import Annex.Content
import Utility.Rsync
import Logs.Transfer
import qualified Fields
def :: [Command]
def = [noCommit $ command "sendkey" paramKey seek
"runs rsync in server mode to send content"]
seek :: [CommandSeek]
seek = [withKeys start]
start :: Key -> CommandStart
start key = ifM (inAnnex key)
( fieldTransfer Upload key $ \_p -> do
file <- inRepo $ gitAnnexLocation key
liftIO $ rsyncServerSend file
, do
warning "requested key is not present"
liftIO exitFailure
)
fieldTransfer :: Direction -> Key -> (MeterUpdate -> Annex Bool) -> CommandStart
fieldTransfer direction key a = do
afile <- Fields.getField Fields.associatedFile
ok <- maybe (a $ const noop)
(\u -> runTransfer (Transfer direction (toUUID u) key) afile noRetry a)
=<< Fields.getField Fields.remoteUUID
if ok
then liftIO exitSuccess
else liftIO exitFailure