109 lines
3.4 KiB
Haskell
109 lines
3.4 KiB
Haskell
{- git-annex command
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-
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- Copyright 2012-2013 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.Import where
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import Common.Annex
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import Command
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import qualified Annex
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import qualified Command.Add
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import Utility.CopyFile
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import Backend
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import Remote
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import Types.KeySource
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import Types.Key
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cmd :: [Command]
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cmd = [withOptions opts $ notBareRepo $ command "import" paramPaths seek
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SectionCommon "move and add files from outside git working copy"]
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opts :: [Option]
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opts = duplicateModeOptions ++ fileMatchingOptions
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data DuplicateMode = Default | Duplicate | DeDuplicate | CleanDuplicates | SkipDuplicates
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deriving (Eq, Enum, Bounded)
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associatedOption :: DuplicateMode -> Maybe Option
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associatedOption Default = Nothing
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associatedOption Duplicate = Just $
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flagOption [] "duplicate" "do not delete source files"
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associatedOption DeDuplicate = Just $
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flagOption [] "deduplicate" "delete source files whose content was imported before"
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associatedOption CleanDuplicates = Just $
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flagOption [] "clean-duplicates" "delete duplicate source files (import nothing)"
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associatedOption SkipDuplicates = Just $
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flagOption [] "skip-duplicates" "import only new files"
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duplicateModeOptions :: [Option]
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duplicateModeOptions = mapMaybe associatedOption [minBound..maxBound]
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getDuplicateMode :: Annex DuplicateMode
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getDuplicateMode = go . catMaybes <$> mapM getflag [minBound..maxBound]
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where
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getflag m = case associatedOption m of
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Nothing -> return Nothing
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Just o -> ifM (Annex.getFlag (optionName o))
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( return (Just m)
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, return Nothing
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)
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go [] = Default
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go [m] = m
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go ms = error $ "cannot combine " ++
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unwords (map (optionParam . fromJust . associatedOption) ms)
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seek :: CommandSeek
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seek ps = do
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mode <- getDuplicateMode
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withPathContents (start mode) ps
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start :: DuplicateMode -> (FilePath, FilePath) -> CommandStart
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start mode (srcfile, destfile) =
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ifM (liftIO $ isRegularFile <$> getSymbolicLinkStatus srcfile)
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( do
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ma <- pickaction
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case ma of
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Nothing -> stop
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Just a -> do
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showStart "import" destfile
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next a
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, stop
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)
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where
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deletedup k = do
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showNote $ "duplicate of " ++ key2file k
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liftIO $ removeFile srcfile
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next $ return True
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importfile = do
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handleexisting =<< liftIO (catchMaybeIO $ getSymbolicLinkStatus destfile)
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liftIO $ createDirectoryIfMissing True (parentDir destfile)
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liftIO $ if mode == Duplicate || mode == SkipDuplicates
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then void $ copyFileExternal CopyAllMetaData srcfile destfile
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else moveFile srcfile destfile
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Command.Add.perform destfile
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handleexisting Nothing = noop
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handleexisting (Just s)
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| isDirectory s = notoverwriting "(is a directory)"
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| otherwise = ifM (Annex.getState Annex.force)
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( liftIO $ nukeFile destfile
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, notoverwriting "(use --force to override, or a duplication option such as --deduplicate to clean up)"
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)
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notoverwriting why = error $ "not overwriting existing " ++ destfile ++ " " ++ why
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checkdup dupa notdupa = do
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backend <- chooseBackend destfile
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let ks = KeySource srcfile srcfile Nothing
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v <- genKey ks backend
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case v of
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Just (k, _) -> ifM (not . null <$> keyLocations k)
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( return (maybe Nothing (\a -> Just (a k)) dupa)
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, return notdupa
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)
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_ -> return notdupa
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pickaction = case mode of
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DeDuplicate -> checkdup (Just deletedup) (Just importfile)
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CleanDuplicates -> checkdup (Just deletedup) Nothing
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SkipDuplicates -> checkdup Nothing (Just importfile)
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_ -> return (Just importfile)
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