git-annex/Command/Mirror.hs
Joey Hess d13194b230
--branch, stage 2
Show branch:file that is being operated on.

I had to make ActionItem a type and not a type class because
withKeyOptions' passed two different types of values when using the type
class, and I could not get the type checker to accept that.
2016-07-20 15:23:43 -04:00

74 lines
2 KiB
Haskell

{- git-annex command
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Mirror where
import Command
import qualified Command.Move
import qualified Command.Drop
import qualified Command.Get
import qualified Remote
import Annex.Content
import Annex.NumCopies
cmd :: Command
cmd = withGlobalOptions ([jobsOption] ++ annexedMatchingOptions) $
command "mirror" SectionCommon
"mirror content of files to/from another repository"
paramPaths (seek <--< optParser)
data MirrorOptions = MirrorOptions
{ mirrorFiles :: CmdParams
, fromToOptions :: FromToOptions
, keyOptions :: Maybe KeyOptions
}
optParser :: CmdParamsDesc -> Parser MirrorOptions
optParser desc = MirrorOptions
<$> cmdParams desc
<*> parseFromToOptions
<*> optional (parseKeyOptions False)
instance DeferredParseClass MirrorOptions where
finishParse v = MirrorOptions
<$> pure (mirrorFiles v)
<*> finishParse (fromToOptions v)
<*> pure (keyOptions v)
seek :: MirrorOptions -> CommandSeek
seek o = allowConcurrentOutput $
withKeyOptions (keyOptions o) False
(startKey o Nothing)
(withFilesInGit $ whenAnnexed $ start o)
(mirrorFiles o)
start :: MirrorOptions -> FilePath -> Key -> CommandStart
start o file k = startKey o afile k (mkActionItem afile)
where
afile = Just file
startKey :: MirrorOptions -> Maybe FilePath -> Key -> ActionItem -> CommandStart
startKey o afile key ai = case fromToOptions o of
ToRemote r -> ifM (inAnnex key)
( Command.Move.toStart False afile key ai =<< getParsed r
, do
numcopies <- getnumcopies
Command.Drop.startRemote afile ai numcopies key =<< getParsed r
)
FromRemote r -> do
haskey <- flip Remote.hasKey key =<< getParsed r
case haskey of
Left _ -> stop
Right True -> Command.Get.start' (return True) Nothing key afile ai
Right False -> ifM (inAnnex key)
( do
numcopies <- getnumcopies
Command.Drop.startLocal afile ai numcopies key []
, stop
)
where
getnumcopies = maybe getNumCopies getFileNumCopies afile