git-annex/Assistant/Threads/Pusher.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

50 lines
1.7 KiB
Haskell

{- git-annex assistant git pushing thread
-
- Copyright 2012 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
module Assistant.Threads.Pusher where
import Assistant.Common
import Assistant.Commits
import Assistant.Pushes
import Assistant.DaemonStatus
import Assistant.Sync
import Utility.ThreadScheduler
import qualified Remote
import qualified Types.Remote as Remote
{- This thread retries pushes that failed before. -}
pushRetryThread :: NamedThread
pushRetryThread = namedThread "PushRetrier" $ runEvery (Seconds halfhour) <~> do
-- We already waited half an hour, now wait until there are failed
-- pushes to retry.
topush <- getFailedPushesBefore (fromIntegral halfhour)
=<< getAssistant failedPushMap
unless (null topush) $ do
debug ["retrying", show (length topush), "failed pushes"]
void $ pushToRemotes topush
where
halfhour = 1800
{- This thread pushes git commits out to remotes soon after they are made. -}
pushThread :: NamedThread
pushThread = namedThread "Pusher" $ runEvery (Seconds 2) <~> do
-- We already waited two seconds as a simple rate limiter.
-- Next, wait until at least one commit has been made
void getCommits
-- Now see if now's a good time to push.
void $ pushToRemotes =<< pushTargets
{- We want to avoid pushing to remotes that are marked readonly.
-
- Also, avoid pushing to local remotes we can easily tell are not available,
- to avoid ugly messages when a removable drive is not attached.
-}
pushTargets :: Assistant [Remote]
pushTargets = liftIO . filterM (Remote.checkAvailable True)
=<< candidates <$> getDaemonStatus
where
candidates = filter (not . Remote.readonly) . syncGitRemotes