git-annex/Command/Copy.hs
Joey Hess bb18026b2c
move --to=here
* move --to=here moves from all reachable remotes to the local repository.

The output of move --from remote is changed slightly, when the remote and
local both have the content. It used to say:
move foo ok
Now:
move foo (from theremote...) ok

That was done so that, when move --to=here is used and the content is
locally present and also in several remotes, it's clear which remotes the
content gets dropped from.

Note that move --to=here will report an error if a non-reachable remote
contains the file, even if the local repository also contains the file. I
think that's reasonable; the user may be intending to move all other copies
of the file from remotes.

OTOH, if a copy of the file is believed to be present in some repository
that is not a configured remote, move --to=here does not report an error.
So a little bit inconsistent, but erroring in this case feels wrong.

copy --to=here came along for free, but it's basically the same behavior as
git-annex get, and probably with not as good messages in edge cases
(especially on failure), so I've not documented it.

This commit was sponsored by Anthony DeRobertis on Patreon.
2017-05-31 17:00:18 -04:00

61 lines
1.9 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 Command
import qualified Command.Move
import qualified Remote
import Annex.Wanted
import Annex.NumCopies
cmd :: Command
cmd = withGlobalOptions (jobsOption : jsonOption : jsonProgressOption : annexedMatchingOptions) $
command "copy" SectionCommon
"copy content of files to/from another repository"
paramPaths (seek <--< optParser)
data CopyOptions = CopyOptions
{ moveOptions :: Command.Move.MoveOptions
, autoMode :: Bool
}
optParser :: CmdParamsDesc -> Parser CopyOptions
optParser desc = CopyOptions
<$> Command.Move.optParser desc
<*> parseAutoOption
instance DeferredParseClass CopyOptions where
finishParse v = CopyOptions
<$> finishParse (moveOptions v)
<*> pure (autoMode v)
seek :: CopyOptions -> CommandSeek
seek o = allowConcurrentOutput $
withKeyOptions (Command.Move.keyOptions $ moveOptions o) (autoMode o)
(Command.Move.startKey (moveOptions o) False)
(withFilesInGit $ whenAnnexed $ start o)
(Command.Move.moveFiles $ moveOptions o)
{- 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 :: CopyOptions -> FilePath -> Key -> CommandStart
start o file key = stopUnless shouldCopy $
Command.Move.start (moveOptions o) False file key
where
shouldCopy
| autoMode o = want <||> numCopiesCheck file key (<)
| otherwise = return True
want = case Command.Move.fromToOptions (moveOptions o) of
Right (ToRemote dest) ->
(Remote.uuid <$> getParsed dest) >>= checkwantsend
Right (FromRemote _) -> checkwantget
Left Command.Move.ToHere -> checkwantget
checkwantsend = wantSend False (Just key) (AssociatedFile (Just file))
checkwantget = wantGet False (Just key) (AssociatedFile (Just file))