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.
39 lines
1.2 KiB
Haskell
39 lines
1.2 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010 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.Copy where
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import Common.Annex
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import Command
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import GitAnnex.Options
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import qualified Command.Move
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import qualified Remote
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import Annex.Wanted
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def :: [Command]
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def = [withOptions Command.Move.moveOptions $ command "copy" paramPaths seek
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SectionCommon "copy content of files to/from another repository"]
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seek :: [CommandSeek]
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seek =
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[ withField toOption Remote.byNameWithUUID $ \to ->
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withField fromOption Remote.byNameWithUUID $ \from ->
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withKeyOptions (Command.Move.startKey to from False) $
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withFilesInGit $ whenAnnexed $ start to from
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]
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{- A copy is just a move that does not delete the source file.
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- However, --auto mode avoids unnecessary copies, and avoids getting or
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- sending non-preferred content. -}
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start :: Maybe Remote -> Maybe Remote -> FilePath -> (Key, Backend) -> CommandStart
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start to from file (key, backend) = stopUnless shouldCopy $
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Command.Move.start to from False file (key, backend)
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where
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shouldCopy = checkAuto (check <||> numCopiesCheck file key (<))
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check = case to of
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Nothing -> wantGet False (Just file)
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Just r -> wantSend False (Just file) (Remote.uuid r)
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