git-annex/Annex/Export.hs

57 lines
1.5 KiB
Haskell

{- git-annex exports
-
- Copyright 2017 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Annex.Export where
import Annex
import Annex.CatFile
import Types
import Types.Key
import qualified Git
import qualified Types.Remote as Remote
import Messages
import Control.Applicative
import Data.Maybe
import Prelude
-- An export includes both annexed files and files stored in git.
-- For the latter, a SHA1 key is synthesized.
data ExportKey = AnnexKey Key | GitKey Key
deriving (Show, Eq, Ord)
asKey :: ExportKey -> Key
asKey (AnnexKey k) = k
asKey (GitKey k) = k
exportKey :: Git.Sha -> Annex ExportKey
exportKey sha = mk <$> catKey sha
where
mk (Just k) = AnnexKey k
mk Nothing = GitKey $ mkKey $ \k -> k
{ keyName = Git.fromRef' sha
, keyVariety = SHA1Key (HasExt False)
, keySize = Nothing
, keyMtime = Nothing
, keyChunkSize = Nothing
, keyChunkNum = Nothing
}
warnExportImportConflict :: Remote -> Annex ()
warnExportImportConflict r = do
isimport <- Remote.isImportSupported r
isexport <- Remote.isExportSupported r
let (ops, resolvcmd) = case (isexport, isimport) of
(False, True) -> ("imported from", "git-annex import")
(True, False) -> ("exported to", "git-annex export")
_ -> ("exported to and/or imported from", "git-annex export")
toplevelWarning True $ unwords
[ "Conflict detected. Different trees have been"
, ops, Remote.name r ++ ". Use"
, resolvcmd
, "to resolve this conflict."
]