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