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|
{- git-annex command
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Mirror where
import Common.Annex
import Command
import qualified Command.Move
import qualified Command.Drop
import qualified Command.Get
import qualified Remote
import Annex.Content
import Config.NumCopies
cmd :: [Command]
cmd = [withOptions mirrorOptions $ command "mirror" paramPaths seek
SectionCommon "mirror content of files to/from another repository"]
mirrorOptions :: [Option]
mirrorOptions = fromToOptions ++ annexedMatchingOptions ++ keyOptions
seek :: CommandSeek
seek ps = do
to <- getOptionField toOption Remote.byNameWithUUID
from <- getOptionField fromOption Remote.byNameWithUUID
withKeyOptions False
(startKey to from Nothing)
(withFilesInGit $ whenAnnexed $ start to from)
ps
start :: Maybe Remote -> Maybe Remote -> FilePath -> Key -> CommandStart
start to from file = startKey to from (Just file)
startKey :: Maybe Remote -> Maybe Remote -> Maybe FilePath -> Key -> CommandStart
startKey to from afile key =
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
mirrorto r = ifM (inAnnex key)
( Command.Move.toStart r False afile key
, do
numcopies <- getnumcopies
Command.Drop.startRemote afile 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 afile
Right False -> ifM (inAnnex key)
( do
numcopies <- getnumcopies
Command.Drop.startLocal afile numcopies key Nothing
, stop
)
getnumcopies = maybe getNumCopies getFileNumCopies afile
|
