78da00c7a6When the log has an activity that is not known, eg added by a future version of git-annex, it used to be treated as no activity at all, which would make git-annex expire think it should expire the repository, despite it having some kind of recent activity. Hopefully there will be no reason to add a new activity until enough time has passed that this commit is in use everywhere. Sponsored-by: Jake Vosloo on Patreon
61 lines
1.5 KiB
Haskell
61 lines
1.5 KiB
Haskell
{- git-annex activity log
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-
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- Copyright 2015-2021 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.Activity (
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Log,
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Activity(..),
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allActivities,
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recordActivity,
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lastActivities,
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) where
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import Annex.Common
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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 Data.ByteString as S
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import qualified Data.Attoparsec.ByteString as A
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import Data.ByteString.Builder
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data Activity
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= Fsck
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-- Allow for unknown activities to be added later.
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| UnknownActivity S.ByteString
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deriving (Eq, Read, Show)
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allActivities :: [Activity]
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allActivities = [Fsck]
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-- Record an activity. This takes the place of previously recorded activity
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-- for the UUID.
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recordActivity :: Activity -> UUID -> Annex ()
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recordActivity act uuid = do
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c <- currentVectorClock
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Annex.Branch.change (Annex.Branch.RegardingUUID [uuid]) activityLog $
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buildLogOld buildActivity
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. changeLog c uuid act
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. parseLogOld parseActivity
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-- Most recent activity for each UUID.
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lastActivities :: Maybe Activity -> Annex (Log Activity)
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lastActivities wantact = parseLogOld (onlywanted =<< parseActivity)
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<$> Annex.Branch.get activityLog
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where
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onlywanted a
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| wanted a = pure a
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| otherwise = fail "unwanted activity"
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wanted a = maybe True (a ==) wantact
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buildActivity :: Activity -> Builder
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buildActivity (UnknownActivity b) = byteString b
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buildActivity a = byteString $ encodeBS $ show a
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parseActivity :: A.Parser Activity
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parseActivity = go <$> A.takeByteString
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where
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go b = fromMaybe (UnknownActivity b) (readish $ decodeBS b)
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