git-annex/Command/Copy.hs
Joey Hess e880d0d22c replace (Key, Backend) with Key
Only fsck and reinject and the test suite used the Backend, and they can
look it up as needed from the Key. This simplifies the code and also speeds
it up.

There is a small behavior change here. Before, all commands would warn when
acting on an annexed file with an unknown backend. Now, only fsck and
reinject show that warning.
2014-04-17 18:03:39 -04:00

40 lines
1.2 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Command.Copy where
import Common.Annex
import Command
import qualified Command.Move
import qualified Remote
import Annex.Wanted
import Config.NumCopies
def :: [Command]
def = [withOptions Command.Move.moveOptions $ command "copy" paramPaths seek
SectionCommon "copy content of files to/from another repository"]
seek :: CommandSeek
seek ps = do
to <- getOptionField toOption Remote.byNameWithUUID
from <- getOptionField fromOption Remote.byNameWithUUID
withKeyOptions
(Command.Move.startKey to from False)
(withFilesInGit $ whenAnnexed $ start to from)
ps
{- A copy is just a move that does not delete the source file.
- However, --auto mode avoids unnecessary copies, and avoids getting or
- sending non-preferred content. -}
start :: Maybe Remote -> Maybe Remote -> FilePath -> Key -> CommandStart
start to from file key = stopUnless shouldCopy $
Command.Move.start to from False file key
where
shouldCopy = checkAuto (check <||> numCopiesCheck file key (<))
check = case to of
Nothing -> wantGet False (Just key) (Just file)
Just r -> wantSend False (Just key) (Just file) (Remote.uuid r)