git-annex/Logs/PreferredContent/Raw.hs

82 lines
2.9 KiB
Haskell

{- unparsed preferred content expressions
-
- Copyright 2012-2019 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Logs.PreferredContent.Raw where
import Annex.Common
import qualified Annex.Branch
import qualified Annex
import Logs
import Logs.UUIDBased
import Logs.MapLog
import Types.StandardGroups
import Types.Group
import qualified Data.Map as M
import qualified Data.ByteString.Lazy as L
import qualified Data.Attoparsec.ByteString.Lazy as A
import Data.ByteString.Builder
{- Changes the preferred content configuration of a remote. -}
preferredContentSet :: UUID -> PreferredContentExpression -> Annex ()
preferredContentSet = setLog preferredContentLog
requiredContentSet :: UUID -> PreferredContentExpression -> Annex ()
requiredContentSet = setLog requiredContentLog
setLog :: FilePath -> UUID -> PreferredContentExpression -> Annex ()
setLog logfile uuid@(UUID _) val = do
c <- liftIO currentVectorClock
Annex.Branch.change logfile $
buildLogOld buildPreferredContentExpression
. changeLog c uuid val
. parseLogOld parsePreferredContentExpression
Annex.changeState $ \s -> s
{ Annex.preferredcontentmap = Nothing
, Annex.requiredcontentmap = Nothing
}
setLog _ NoUUID _ = error "unknown UUID; cannot modify"
{- Changes the preferred content configuration of a group. -}
groupPreferredContentSet :: Group -> PreferredContentExpression -> Annex ()
groupPreferredContentSet g val = do
c <- liftIO currentVectorClock
Annex.Branch.change groupPreferredContentLog $
buildGroupPreferredContent
. changeMapLog c g val
. parseGroupPreferredContent
Annex.changeState $ \s -> s { Annex.preferredcontentmap = Nothing }
parseGroupPreferredContent :: L.ByteString -> MapLog Group String
parseGroupPreferredContent = parseMapLog parsegroup parsestring
where
parsegroup = Group <$> A.takeByteString
parsestring = decodeBS <$> A.takeByteString
buildGroupPreferredContent :: MapLog Group PreferredContentExpression -> Builder
buildGroupPreferredContent = buildMapLog buildgroup buildexpr
where
buildgroup (Group g) = byteString g
buildexpr = byteString . encodeBS
parsePreferredContentExpression :: A.Parser PreferredContentExpression
parsePreferredContentExpression = decodeBS <$> A.takeByteString
buildPreferredContentExpression :: PreferredContentExpression -> Builder
buildPreferredContentExpression = byteString . encodeBS
preferredContentMapRaw :: Annex (M.Map UUID PreferredContentExpression)
preferredContentMapRaw = simpleMap . parseLogOld parsePreferredContentExpression
<$> Annex.Branch.get preferredContentLog
requiredContentMapRaw :: Annex (M.Map UUID PreferredContentExpression)
requiredContentMapRaw = simpleMap . parseLogOld parsePreferredContentExpression
<$> Annex.Branch.get requiredContentLog
groupPreferredContentMapRaw :: Annex (M.Map Group PreferredContentExpression)
groupPreferredContentMapRaw = simpleMap . parseGroupPreferredContent
<$> Annex.Branch.get groupPreferredContentLog