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{- git cat-file interface, with handle automatically stored in the Annex monad
-
- Copyright 2011 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Annex.CatFile (
catFile,
catObject,
catFileHandle
) where
import qualified Data.ByteString.Lazy.Char8 as L
import Common.Annex
import qualified Git
import qualified Git.CatFile
import qualified Annex
catFile :: Git.Branch -> FilePath -> Annex L.ByteString
catFile branch file = do
h <- catFileHandle
liftIO $ Git.CatFile.catFile h branch file
catObject :: Git.Ref -> Annex L.ByteString
catObject ref = do
h <- catFileHandle
liftIO $ Git.CatFile.catObject h ref
catFileHandle :: Annex Git.CatFile.CatFileHandle
catFileHandle = maybe startup return =<< Annex.getState Annex.catfilehandle
where
startup = do
h <- inRepo Git.CatFile.catFileStart
Annex.changeState $ \s -> s { Annex.catfilehandle = Just h }
return h
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