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|
{- git-annex command
-
- Copyright 2010,2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.SendKey where
import Command
import Annex.Content
import Annex
import Utility.Rsync
import Annex.Transfer
import qualified CmdLine.GitAnnexShell.Fields as Fields
import Utility.Metered
import System.Log.Logger
cmd :: Command
cmd = noCommit $
command "sendkey" SectionPlumbing
"runs rsync in server mode to send content"
paramKey (withParams seek)
seek :: CmdParams -> CommandSeek
seek = withKeys start
start :: Key -> CommandStart
start key = do
opts <- filterRsyncSafeOptions . maybe [] words
<$> getField "RsyncOptions"
ifM (inAnnex key)
( fieldTransfer Upload key $ \_p ->
sendAnnex key rollback $ liftIO . rsyncServerSend (map Param opts)
, do
warning "requested key is not present"
liftIO exitFailure
)
where
{- No need to do any rollback; when sendAnnex fails, a nonzero
- exit will be propigated, and the remote will know the transfer
- failed. -}
rollback = noop
fieldTransfer :: Direction -> Key -> (MeterUpdate -> Annex Bool) -> CommandStart
fieldTransfer direction key a = do
liftIO $ debugM "fieldTransfer" "transfer start"
afile <- Fields.getField Fields.associatedFile
ok <- maybe (a $ const noop)
(\u -> runner (Transfer direction (toUUID u) key) afile noRetry noObserver a)
=<< Fields.getField Fields.remoteUUID
liftIO $ debugM "fieldTransfer" "transfer done"
liftIO $ exitBool ok
where
{- Allow the key to be sent to the remote even if there seems to be
- another transfer of that key going on to that remote.
- That one may be stale, etc.
-}
runner
| direction == Upload = alwaysRunTransfer
| otherwise = runTransfer
|
