53526136e8
This is groundwork for nested seek loops, eg seeking over all files and then performing commandActions on a list of remotes, which can be done concurrently. This commit was sponsored by Boyd Stephen Smith Jr. on Patreon.
74 lines
2.2 KiB
Haskell
74 lines
2.2 KiB
Haskell
{- git-annex command
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-
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- Copyright 2010 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Command.Copy where
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import Command
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import qualified Command.Move
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import qualified Remote
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import Annex.Wanted
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import Annex.NumCopies
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cmd :: Command
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cmd = withGlobalOptions [jobsOption, jsonOptions, jsonProgressOption, annexedMatchingOptions] $
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command "copy" SectionCommon
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"copy content of files to/from another repository"
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paramPaths (seek <--< optParser)
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data CopyOptions = CopyOptions
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{ copyFiles :: CmdParams
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, fromToOptions :: FromToHereOptions
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, keyOptions :: Maybe KeyOptions
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, autoMode :: Bool
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, batchOption :: BatchMode
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}
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optParser :: CmdParamsDesc -> Parser CopyOptions
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optParser desc = CopyOptions
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<$> cmdParams desc
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<*> parseFromToHereOptions
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<*> optional (parseKeyOptions <|> parseFailedTransfersOption)
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<*> parseAutoOption
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<*> parseBatchOption
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instance DeferredParseClass CopyOptions where
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finishParse v = CopyOptions
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<$> pure (copyFiles v)
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<*> finishParse (fromToOptions v)
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<*> pure (keyOptions v)
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<*> pure (autoMode v)
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<*> pure (batchOption v)
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seek :: CopyOptions -> CommandSeek
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seek o = allowConcurrentOutput $ do
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let go = whenAnnexed $ start o
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case batchOption o of
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Batch fmt -> batchFilesMatching fmt go
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NoBatch -> withKeyOptions
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(keyOptions o) (autoMode o)
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(commandAction . Command.Move.startKey (fromToOptions o) Command.Move.RemoveNever)
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(withFilesInGit $ commandAction . go)
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=<< workTreeItems (copyFiles o)
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{- A copy is just a move that does not delete the source file.
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- However, auto mode avoids unnecessary copies, and avoids getting or
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- sending non-preferred content. -}
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start :: CopyOptions -> FilePath -> Key -> CommandStart
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start o file key = stopUnless shouldCopy $
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Command.Move.start (fromToOptions o) Command.Move.RemoveNever file key
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where
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shouldCopy
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| autoMode o = want <||> numCopiesCheck file key (<)
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| otherwise = return True
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want = case fromToOptions o of
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Right (ToRemote dest) ->
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(Remote.uuid <$> getParsed dest) >>= checkwantsend
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Right (FromRemote _) -> checkwantget
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Left ToHere -> checkwantget
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checkwantsend = wantSend False (Just key) (AssociatedFile (Just file))
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checkwantget = wantGet False (Just key) (AssociatedFile (Just file))
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