0f921307e7
This is a simple approach for setting up a mirroring repository. It will work with any type of remotes. Mirror --from is more expensive than mirror --to in general. OTOH, mirror --from will get the file from any remote that has it, not only the named mirror remote. And if the named mirror remote is not the fastest available remote with a file, that can speed things up. It would be possible to make the assistant or watch command do a more dynamic mirroring, that didn't need to scan every time.
59 lines
1.8 KiB
Haskell
59 lines
1.8 KiB
Haskell
{- git-annex command, used internally by old versions of assistant;
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- kept around for now so running daemons don't break when upgraded
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-
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- Copyright 2012 Joey Hess <joey@kitenet.net>
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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.TransferKey where
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import Common.Annex
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import Command
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import Annex.Content
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import Logs.Location
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import Logs.Transfer
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import qualified Remote
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import Types.Remote
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import GitAnnex.Options
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import qualified Option
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def :: [Command]
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def = [withOptions transferKeyOptions $
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noCommit $ command "transferkey" paramKey seek SectionPlumbing
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"transfers a key from or to a remote"]
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transferKeyOptions :: [Option]
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transferKeyOptions = fileOption : fromToOptions
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fileOption :: Option
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fileOption = Option.field [] "file" paramFile "the associated file"
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seek :: [CommandSeek]
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seek = [withField toOption Remote.byNameWithUUID $ \to ->
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withField fromOption Remote.byNameWithUUID $ \from ->
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withField fileOption return $ \file ->
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withKeys $ start to from file]
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start :: Maybe Remote -> Maybe Remote -> AssociatedFile -> Key -> CommandStart
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start to from file key =
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case (from, to) of
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(Nothing, Just dest) -> next $ toPerform dest key file
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(Just src, Nothing) -> next $ fromPerform src key file
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_ -> error "specify either --from or --to"
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toPerform :: Remote -> Key -> AssociatedFile -> CommandPerform
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toPerform remote key file = go $
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upload (uuid remote) key file forwardRetry $ \p -> do
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ok <- Remote.storeKey remote key file p
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when ok $
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Remote.logStatus remote key InfoPresent
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return ok
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fromPerform :: Remote -> Key -> AssociatedFile -> CommandPerform
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fromPerform remote key file = go $
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download (uuid remote) key file forwardRetry $ \p ->
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getViaTmp key $ \t -> Remote.retrieveKeyFile remote key file t p
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go :: Annex Bool -> CommandPerform
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go a = ifM a ( liftIO exitSuccess, liftIO exitFailure)
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