git-annex/Command/Mirror.hs
Joey Hess 6583448bab
add --json-error-messages (not yet implemented)
Added --json-error-messages option, which includes error messages in the
json output, rather than outputting them to stderr.

The actual rediretion of errors is not implemented yet, this is only
the docs and option plumbing.

This commit was supported by the NSF-funded DataLad project.
2018-02-19 14:32:15 -04:00

77 lines
2.3 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
import Types.Transfer
cmd :: Command
cmd = withGlobalOptions [jobsOption, jsonOptions, jsonProgressOption, 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
<$> cmdParams desc
<*> parseFromToOptions
<*> optional (parseKeyOptions <|> parseFailedTransfersOption)
instance DeferredParseClass MirrorOptions where
finishParse v = MirrorOptions
<$> pure (mirrorFiles v)
<*> finishParse (fromToOptions v)
<*> pure (keyOptions v)
seek :: MirrorOptions -> CommandSeek
seek o = allowConcurrentOutput $
withKeyOptions (keyOptions o) False
(startKey o (AssociatedFile Nothing))
(withFilesInGit $ whenAnnexed $ start o)
=<< workTreeItems (mirrorFiles o)
start :: MirrorOptions -> FilePath -> Key -> CommandStart
start o file k = startKey o afile k (mkActionItem afile)
where
afile = AssociatedFile (Just file)
startKey :: MirrorOptions -> AssociatedFile -> Key -> ActionItem -> CommandStart
startKey o afile key ai = onlyActionOn key $ case fromToOptions o of
ToRemote r -> checkFailedTransferDirection ai Upload $ 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 -> checkFailedTransferDirection ai Download $ 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 = case afile of
AssociatedFile Nothing -> getNumCopies
AssociatedFile (Just af) -> getFileNumCopies af