40ecf58d4bThis does not change the overall license of the git-annex program, which was already AGPL due to a number of sources files being AGPL already. Legally speaking, I'm adding a new license under which these files are now available; I already released their current contents under the GPL license. Now they're dual licensed GPL and AGPL. However, I intend for all my future changes to these files to only be released under the AGPL license, and I won't be tracking the dual licensing status, so I'm simply changing the license statement to say it's AGPL. (In some cases, others wrote parts of the code of a file and released it under the GPL; but in all cases I have contributed a significant portion of the code in each file and it's that code that is getting the AGPL license; the GPL license of other contributors allows combining with AGPL code.)
56 lines
1.5 KiB
Haskell
56 lines
1.5 KiB
Haskell
{- git-annex uuid log
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-
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- uuid.log stores a list of known uuids, and their descriptions.
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-
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- Copyright 2010-2019 Joey Hess <id@joeyh.name>
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-
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- Licensed under the GNU AGPL version 3 or higher.
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-}
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module Logs.UUID (
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uuidLog,
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describeUUID,
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uuidDescMap,
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uuidDescMapLoad
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) where
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import Types.UUID
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import Annex.Common
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import Annex.VectorClock
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import qualified Annex
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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 qualified Annex.UUID
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import qualified Data.Map.Strict as M
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import qualified Data.ByteString.Lazy as L
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import qualified Data.Attoparsec.ByteString.Lazy as A
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{- Records a description for a uuid in the log. -}
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describeUUID :: UUID -> UUIDDesc -> Annex ()
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describeUUID uuid desc = do
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c <- liftIO currentVectorClock
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Annex.Branch.change uuidLog $
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buildLogOld buildUUIDDesc . changeLog c uuid desc . parseUUIDLog
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{- The map is cached for speed. -}
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uuidDescMap :: Annex UUIDDescMap
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uuidDescMap = maybe uuidDescMapLoad return =<< Annex.getState Annex.uuiddescmap
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{- Read the uuidLog into a simple Map.
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-
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- The UUID of the current repository is included explicitly, since
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- it may not have been described and otherwise would not appear. -}
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uuidDescMapLoad :: Annex UUIDDescMap
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uuidDescMapLoad = do
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m <- simpleMap . parseUUIDLog <$> Annex.Branch.get uuidLog
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u <- Annex.UUID.getUUID
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let m' = M.insertWith preferold u mempty m
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Annex.changeState $ \s -> s { Annex.uuiddescmap = Just m' }
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return m'
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where
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preferold = flip const
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parseUUIDLog :: L.ByteString -> Log UUIDDesc
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parseUUIDLog = parseLogOld (UUIDDesc <$> A.takeByteString)
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