git-annex/Command/Copy.hs
Joey Hess 99a8a5297c --auto fixes
* get/copy --auto: Transfer data even if it would exceed numcopies,
  when preferred content settings want it.
* drop --auto: Fix dropping content when there are no preferred content
  settings.
2012-12-06 13:22:16 -04:00

36 lines
1.1 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
def :: [Command]
def = [withOptions Command.Move.options $ command "copy" paramPaths seek
"copy content of files to/from another repository"]
seek :: [CommandSeek]
seek = [withField Command.Move.toOption Remote.byName $ \to ->
withField Command.Move.fromOption Remote.byName $ \from ->
withFilesInGit $ whenAnnexed $ start to from]
{- 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, Backend) -> CommandStart
start to from file (key, backend) = stopUnless shouldCopy $
Command.Move.start to from False file (key, backend)
where
shouldCopy = checkAuto (check <||> numCopiesCheck file key (<))
check = case to of
Nothing -> wantGet False (Just file)
Just r -> wantSend False (Just file) (Remote.uuid r)