git-annex/Command/Copy.hs
2015-07-08 15:08:02 -04:00

48 lines
1.4 KiB
Haskell

{- git-annex command
-
- Copyright 2010 Joey Hess <id@joeyh.name>
-
- 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 Annex.NumCopies
cmd :: Command
cmd = withOptions copyOptions $
command "copy" SectionCommon
"copy content of files to/from another repository"
paramPaths (withParams seek)
copyOptions :: [Option]
copyOptions = Command.Move.moveOptions ++ [autoOption]
seek :: CmdParams -> CommandSeek
seek ps = do
to <- getOptionField toOption Remote.byNameWithUUID
from <- getOptionField fromOption Remote.byNameWithUUID
auto <- getOptionFlag autoOption
withKeyOptions auto
(Command.Move.startKey to from False)
(withFilesInGit $ whenAnnexed $ start auto 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 :: Bool -> Maybe Remote -> Maybe Remote -> FilePath -> Key -> CommandStart
start auto to from file key = stopUnless shouldCopy $
Command.Move.start to from False file key
where
shouldCopy
| auto = want <||> numCopiesCheck file key (<)
| otherwise = return True
want = case to of
Nothing -> wantGet False (Just key) (Just file)
Just r -> wantSend False (Just key) (Just file) (Remote.uuid r)