bfc9039ead
Most of the individual logs are not converted yet, only presense logs have an efficient ByteString Builder implemented so far. The rest convert to and from String.
39 lines
1.2 KiB
Haskell
39 lines
1.2 KiB
Haskell
{- git-annex difference log
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-
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- Copyright 2015 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU GPL version 3 or higher.
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-}
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module Logs.Difference (
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recordDifferences,
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recordedDifferences,
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recordedDifferencesFor,
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module Logs.Difference.Pure
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) where
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import qualified Data.Map as M
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import Annex.Common
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import Types.Difference
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import qualified Annex.Branch
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import Logs
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import Logs.UUIDBased
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import Logs.Difference.Pure
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recordDifferences :: Differences -> UUID -> Annex ()
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recordDifferences ds@(Differences {}) uuid = do
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c <- liftIO currentVectorClock
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Annex.Branch.change differenceLog $
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encodeBL . showLog id . changeLog c uuid (showDifferences ds) . parseLog Just . decodeBL
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recordDifferences UnknownDifferences _ = return ()
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-- Map of UUIDs that have Differences recorded.
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-- If a new version of git-annex has added a Difference this version
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-- doesn't know about, it will contain UnknownDifferences.
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recordedDifferences :: Annex (M.Map UUID Differences)
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recordedDifferences = parseDifferencesLog . decodeBL <$> Annex.Branch.get differenceLog
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recordedDifferencesFor :: UUID -> Annex Differences
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recordedDifferencesFor u = fromMaybe mempty . M.lookup u
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<$> recordedDifferences
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