48 lines
1.2 KiB
Haskell
48 lines
1.2 KiB
Haskell
{- git-annex repo sizes, live updates
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-
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- Copyright 2024 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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{-# LANGUAGE BangPatterns #-}
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module Annex.RepoSize.LiveUpdate where
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import Annex.Common
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import qualified Annex
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import Types.RepoSize
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import Logs.Presence.Pure
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import Control.Concurrent
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import qualified Data.Map.Strict as M
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updateRepoSize :: UUID -> Key -> LogStatus -> Annex ()
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updateRepoSize u k s = do
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rsv <- Annex.getRead Annex.reposizes
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liftIO (takeMVar rsv) >>= \case
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Nothing -> liftIO (putMVar rsv Nothing)
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Just sizemap -> do
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let !sizemap' = M.adjust
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(fromMaybe (RepoSize 0) . f k . Just)
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u sizemap
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liftIO $ putMVar rsv (Just sizemap')
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where
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f = case s of
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InfoPresent -> addKeyRepoSize
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InfoMissing -> removeKeyRepoSize
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InfoDead -> removeKeyRepoSize
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addKeyRepoSize :: Key -> Maybe RepoSize -> Maybe RepoSize
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addKeyRepoSize k mrs = case mrs of
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Just (RepoSize sz) -> Just $ RepoSize $ sz + ksz
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Nothing -> Just $ RepoSize ksz
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where
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ksz = fromMaybe 0 $ fromKey keySize k
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removeKeyRepoSize :: Key -> Maybe RepoSize -> Maybe RepoSize
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removeKeyRepoSize k mrs = case mrs of
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Just (RepoSize sz) -> Just $ RepoSize $ sz - ksz
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Nothing -> Nothing
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where
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ksz = fromMaybe 0 $ fromKey keySize k
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