git-annex/Command/Copy.hs
Joey Hess 5ac15149cc assistant: Now honors preferred content settings when deciding what to transfer.
Both when queueing downloads, and uploads, consults the preferred content
settings.

I didn't make it check yet when requeing failed transfers or queuing
deferred downloads; dealing with the preferred content settings (or indeed,
other settings) changing while the assistant is running still needs work.
2012-10-09 12:18:41 -04:00

35 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) = autoCopies file key (<) $
stopUnless shouldCopy $
Command.Move.start to from False file (key, backend)
where
shouldCopy = case to of
Nothing -> checkAuto $ wantGet (Just file)
Just r -> checkAuto $ wantSend (Just file) (Remote.uuid r)