git-annex/Assistant/Threads/Glacier.hs
Joey Hess 40ecf58d4b
update licenses from GPL to AGPL
This does not change the overall license of the git-annex program, which
was already AGPL due to a number of sources files being AGPL already.

Legally speaking, I'm adding a new license under which these files are
now available; I already released their current contents under the GPL
license. Now they're dual licensed GPL and AGPL. However, I intend
for all my future changes to these files to only be released under the
AGPL license, and I won't be tracking the dual licensing status, so I'm
simply changing the license statement to say it's AGPL.

(In some cases, others wrote parts of the code of a file and released it
under the GPL; but in all cases I have contributed a significant portion
of the code in each file and it's that code that is getting the AGPL
license; the GPL license of other contributors allows combining with
AGPL code.)
2019-03-13 15:48:14 -04:00

44 lines
1.4 KiB
Haskell

{- git-annex assistant Amazon Glacier retrieval
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
{-# LANGUAGE OverloadedStrings #-}
module Assistant.Threads.Glacier where
import Assistant.Common
import Utility.ThreadScheduler
import qualified Types.Remote as Remote
import qualified Remote.Glacier as Glacier
import Types.Transfer
import Logs.Transfer
import Assistant.DaemonStatus
import Assistant.TransferQueue
import qualified Data.Set as S
{- Wakes up every half hour and checks if any glacier remotes have failed
- downloads. If so, runs glacier-cli to check if the files are now
- available, and queues the downloads. -}
glacierThread :: NamedThread
glacierThread = namedThread "Glacier" $ runEvery (Seconds 3600) <~> go
where
isglacier r = Remote.remotetype r == Glacier.remote
go = do
rs <- filter isglacier . downloadRemotes <$> getDaemonStatus
forM_ rs $ \r ->
check r =<< liftAnnex (getFailedTransfers $ Remote.uuid r)
check _ [] = noop
check r l = do
let keys = map getkey l
(availkeys, failedkeys) <- liftAnnex $ Glacier.jobList r keys
let s = S.fromList (failedkeys ++ availkeys)
let l' = filter (\p -> S.member (getkey p) s) l
forM_ l' $ \(t, info) -> do
liftAnnex $ removeFailedTransfer t
queueTransferWhenSmall "object available from glacier" (associatedFile info) t r
getkey = transferKey . fst