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|
{- git-annex scheduled activities
-
- Copyright 2013 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Types.ScheduledActivity where
import Common
import Utility.Scheduled
import Utility.HumanTime
import Types.UUID
import Data.Either
data ScheduledActivity
= ScheduledSelfFsck Schedule Duration
| ScheduledRemoteFsck UUID Schedule Duration
deriving (Eq, Read, Show, Ord)
{- Activities that run on a remote, within a time window, so
- should be run when the remote gets connected. -}
connectActivityUUID :: ScheduledActivity -> Maybe UUID
connectActivityUUID (ScheduledRemoteFsck u (Schedule _ AnyTime) _) = Just u
connectActivityUUID _ = Nothing
getSchedule :: ScheduledActivity -> Schedule
getSchedule (ScheduledSelfFsck s _) = s
getSchedule (ScheduledRemoteFsck _ s _) = s
getDuration :: ScheduledActivity -> Duration
getDuration (ScheduledSelfFsck _ d) = d
getDuration (ScheduledRemoteFsck _ _ d) = d
fromScheduledActivity :: ScheduledActivity -> String
fromScheduledActivity (ScheduledSelfFsck s d) = unwords
[ "fsck self", fromDuration d, fromSchedule s ]
fromScheduledActivity (ScheduledRemoteFsck u s d) = unwords
[ "fsck", fromUUID u, fromDuration d, fromSchedule s ]
toScheduledActivity :: String -> Maybe ScheduledActivity
toScheduledActivity = eitherToMaybe . parseScheduledActivity
parseScheduledActivity :: String -> Either String ScheduledActivity
parseScheduledActivity s = case words s of
("fsck":"self":d:rest) -> qualified $ ScheduledSelfFsck
<$> parseSchedule (unwords rest)
<*> getduration d
("fsck":u:d:rest) -> qualified $ ScheduledRemoteFsck
<$> pure (toUUID u)
<*> parseSchedule (unwords rest)
<*> getduration d
_ -> qualified $ Left "unknown activity"
where
qualified (Left e) = Left $ e ++ " in \"" ++ s ++ "\""
qualified v = v
getduration d = maybe (Left $ "failed to parse duration \""++d++"\"") Right (parseDuration d)
fromScheduledActivities :: [ScheduledActivity] -> String
fromScheduledActivities = intercalate "; " . map fromScheduledActivity
parseScheduledActivities :: String -> Either String [ScheduledActivity]
parseScheduledActivities s
| null bad = Right good
| otherwise = Left $ intercalate "; " bad
where
(bad, good) = partitionEithers $
map parseScheduledActivity $ split "; " s
|
