114 lines
3.3 KiB
Haskell
114 lines
3.3 KiB
Haskell
{- git-annex command
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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 AGPL version 3 or higher.
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-}
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module Command.Expire where
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import Command
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import Logs.Activity
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import Logs.UUID
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import Logs.MapLog
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import Logs.Trust
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import Annex.UUID
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import Annex.VectorClock
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import qualified Remote
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import Utility.HumanTime
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import Control.Monad.Fail as Fail (MonadFail(..))
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import Data.Time.Clock.POSIX
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import qualified Data.Map as M
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cmd :: Command
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cmd = command "expire" SectionMaintenance
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"expire inactive repositories"
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paramExpire (seek <$$> optParser)
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paramExpire :: String
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paramExpire = (paramRepeating $ paramOptional paramRemote ++ ":" ++ paramTime)
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data ExpireOptions = ExpireOptions
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{ expireParams :: CmdParams
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, activityOption :: Maybe Activity
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, noActOption :: Bool
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}
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optParser :: CmdParamsDesc -> Parser ExpireOptions
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optParser desc = ExpireOptions
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<$> cmdParams desc
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<*> optional (option (str >>= parseActivity)
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( long "activity" <> metavar paramName
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<> help "specify activity that prevents expiry"
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))
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<*> switch
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( long "no-act"
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<> help "don't really do anything"
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)
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seek :: ExpireOptions -> CommandSeek
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seek o = do
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expire <- parseExpire (expireParams o)
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actlog <- lastActivities (activityOption o)
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u <- getUUID
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us <- filter (/= u) . M.keys <$> uuidDescMap
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descs <- uuidDescMap
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commandActions $ map (start expire (noActOption o) actlog descs) us
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start :: Expire -> Bool -> Log Activity -> UUIDDescMap -> UUID -> CommandStart
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start (Expire expire) noact actlog descs u =
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case lastact of
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Just ent | notexpired ent -> checktrust (== DeadTrusted) $
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starting "unexpire" (ActionItemOther (Just desc)) $ do
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showNote =<< whenactive
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unless noact $
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trustSet u SemiTrusted
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next $ return True
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_ -> checktrust (/= DeadTrusted) $
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starting "expire" (ActionItemOther (Just desc)) $ do
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showNote =<< whenactive
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unless noact $
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trustSet u DeadTrusted
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next $ return True
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where
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lastact = changed <$> M.lookup u actlog
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whenactive = case lastact of
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Just (VectorClock c) -> do
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d <- liftIO $ durationSince $ posixSecondsToUTCTime c
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return $ "last active: " ++ fromDuration d ++ " ago"
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_ -> return "no activity"
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desc = fromUUID u ++ " " ++ fromUUIDDesc (fromMaybe mempty (M.lookup u descs))
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notexpired ent = case ent of
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Unknown -> False
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VectorClock c -> case lookupexpire of
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Just (Just expiretime) -> c >= expiretime
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_ -> True
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lookupexpire = headMaybe $ catMaybes $
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map (`M.lookup` expire) [Just u, Nothing]
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checktrust want = stopUnless (want <$> lookupTrust u)
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data Expire = Expire (M.Map (Maybe UUID) (Maybe POSIXTime))
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parseExpire :: [String] -> Annex Expire
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parseExpire [] = giveup "Specify an expire time."
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parseExpire ps = do
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now <- liftIO getPOSIXTime
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Expire . M.fromList <$> mapM (parse now) ps
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where
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parse now s = case separate (== ':') s of
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(t, []) -> return (Nothing, parsetime now t)
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(n, t) -> do
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r <- Remote.nameToUUID n
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return (Just r, parsetime now t)
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parsetime _ "never" = Nothing
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parsetime now s = case parseDuration s of
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Nothing -> giveup $ "bad expire time: " ++ s
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Just d -> Just (now - durationToPOSIXTime d)
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parseActivity :: MonadFail m => String -> m Activity
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parseActivity s = case readish s of
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Nothing -> Fail.fail $ "Unknown activity. Choose from: " ++
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unwords (map show [minBound..maxBound :: Activity])
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Just v -> return v
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