aebcc395ff
This fixed one bug where it needed to be and wasn't (in Assistant.Unused). And also found one place where lockContent was used unnecessarily (by drop --from remote). A few other places like uninit probably don't really need to lockContent, but it doesn't hurt to do call it anyway. This commit was sponsored by David Wagner.
86 lines
2.4 KiB
Haskell
86 lines
2.4 KiB
Haskell
{- git-annex assistant unused files
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-
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- Copyright 2014 Joey Hess <joey@kitenet.net>
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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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{-# LANGUAGE OverloadedStrings #-}
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module Assistant.Unused where
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import qualified Data.Map as M
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import Assistant.Common
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import qualified Git
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import Types.Key
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import Logs.Unused
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import Logs.Location
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import Annex.Content
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import Utility.DataUnits
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import Utility.DiskFree
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import Utility.HumanTime
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import Utility.Tense
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import Data.Time.Clock.POSIX
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import qualified Data.Text as T
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describeUnused :: Assistant (Maybe TenseText)
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describeUnused = describeUnused' False
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describeUnusedWhenBig :: Assistant (Maybe TenseText)
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describeUnusedWhenBig = describeUnused' True
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{- This uses heuristics: 1000 unused keys, or more unused keys
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- than the remaining free disk space, or more than 1/10th the total
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- disk space being unused keys all suggest a problem. -}
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describeUnused' :: Bool -> Assistant (Maybe TenseText)
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describeUnused' whenbig = liftAnnex $ go =<< readUnusedLog ""
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where
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go m = do
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let num = M.size m
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let diskused = foldl' sumkeysize 0 (M.keys m)
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df <- forpath getDiskFree
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disksize <- forpath getDiskSize
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return $ if num == 0
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then Nothing
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else if not whenbig || moreused df diskused || tenthused disksize diskused
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then Just $ tenseWords
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[ UnTensed $ T.pack $ roughSize storageUnits False diskused
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, Tensed "are" "were"
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, "taken up by unused files"
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]
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else if num > 1000
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then Just $ tenseWords
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[ UnTensed $ T.pack $ show num ++ " unused files"
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, Tensed "exist" "existed"
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]
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else Nothing
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moreused Nothing _ = False
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moreused (Just df) used = df <= used
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tenthused Nothing _ = False
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tenthused (Just disksize) used = used >= disksize `div` 10
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sumkeysize s k = s + fromMaybe 0 (keySize k)
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forpath a = inRepo $ liftIO . a . Git.repoPath
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{- With a duration, expires all unused files that are older.
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- With Nothing, expires *all* unused files. -}
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expireUnused :: Maybe Duration -> Assistant ()
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expireUnused duration = do
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m <- liftAnnex $ readUnusedLog ""
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now <- liftIO getPOSIXTime
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let oldkeys = M.keys $ M.filter (tooold now) m
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forM_ oldkeys $ \k -> do
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debug ["removing old unused key", key2file k]
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liftAnnex $ do
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lockContent k removeAnnex
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logStatus k InfoMissing
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where
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boundry = durationToPOSIXTime <$> duration
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tooold now (_, mt) = case boundry of
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Nothing -> True
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Just b -> maybe False (\t -> now - t >= b) mt
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