git-annex/BackendChecksum.hs
2010-10-11 17:52:46 -04:00

19 lines
447 B
Haskell

{- git-annex "checksum" backend
- -}
module BackendChecksum (backend) where
import qualified BackendFile
import Data.Digest.Pure.SHA
import BackendType
import GitRepo
-- based on BackendFile just with a different key type
backend = BackendFile.backend {
name = "checksum",
getKey = keyValue
}
-- checksum the file to get its key
keyValue :: GitRepo -> FilePath -> IO (Maybe Key)
keyValue k = error "checksum keyValue unimplemented" -- TODO