git-annex/Annex/Quvi.hs
2015-01-21 12:50:09 -04:00

33 lines
845 B
Haskell

{- quvi options for git-annex
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
{-# LANGUAGE Rank2Types #-}
module Annex.Quvi where
import Common.Annex
import qualified Annex
import Utility.Quvi
import Utility.Url
withQuviOptions :: forall a. Query a -> [QuviParam] -> URLString -> Annex a
withQuviOptions a ps url = do
v <- quviVersion
opts <- map Param . annexQuviOptions <$> Annex.getGitConfig
liftIO $ a v (map (\mkp -> mkp v) ps++opts) url
quviSupported :: URLString -> Annex Bool
quviSupported u = liftIO . flip supported u =<< quviVersion
quviVersion :: Annex QuviVersion
quviVersion = go =<< Annex.getState Annex.quviversion
where
go (Just v) = return v
go Nothing = do
v <- liftIO probeVersion
Annex.changeState $ \s -> s { Annex.quviversion = Just v }
return v