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{- git-annex command
-
- Copyright 2013 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Mirror where
import Common.Annex
import Command
import GitAnnex.Options
import qualified Command.Move
import qualified Command.Drop
import qualified Command.Get
import qualified Remote
import Annex.Content
import qualified Annex
def :: [Command]
def = [withOptions fromToOptions $ command "mirror" paramPaths seek
SectionCommon "mirror content of files to/from another repository"]
seek :: [CommandSeek]
seek =
[ withField toOption Remote.byNameWithUUID $ \to ->
withField fromOption Remote.byNameWithUUID $ \from ->
withFilesInGit $ whenAnnexed $ start to from
]
start :: Maybe Remote -> Maybe Remote -> FilePath -> (Key, Backend) -> CommandStart
start to from file (key, _backend) = do
noAuto
case (from, to) of
(Nothing, Nothing) -> error "specify either --from or --to"
(Nothing, Just r) -> mirrorto r
(Just r, Nothing) -> mirrorfrom r
_ -> error "only one of --from or --to can be specified"
where
noAuto = whenM (Annex.getState Annex.auto) $
error "--auto is not supported for mirror"
mirrorto r = ifM (inAnnex key)
( Command.Move.toStart r False (Just file) key
, do
numcopies <- numCopies file
Command.Drop.startRemote file numcopies key r
)
mirrorfrom r = do
haskey <- Remote.hasKey r key
case haskey of
Left _ -> stop
Right True -> Command.Get.start' (return True) Nothing key (Just file)
Right False -> ifM (inAnnex key)
( do
numcopies <- numCopies file
Command.Drop.startLocal file numcopies key Nothing
, stop
)
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