git-annex/Assistant/Threads/Upgrader.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

85 lines
2.6 KiB
Haskell

{- git-annex assistant thread to detect when upgrade is available
-
- Copyright 2013 Joey Hess <id@joeyh.name>
-
- Licensed under the GNU AGPL version 3 or higher.
-}
{-# LANGUAGE CPP #-}
module Assistant.Threads.Upgrader (
upgraderThread
) where
import Assistant.Common
import Assistant.Upgrade
import Assistant.Types.UrlRenderer
import Assistant.DaemonStatus
import Assistant.Alert
import Utility.NotificationBroadcaster
import qualified Annex
import qualified BuildInfo
import qualified Utility.DottedVersion as DottedVersion
import Types.Distribution
#ifdef WITH_WEBAPP
import Assistant.WebApp.Types
#endif
import Data.Time.Clock
import qualified Data.Text as T
upgraderThread :: UrlRenderer -> NamedThread
upgraderThread urlrenderer = namedThread "Upgrader" $
when (isJust BuildInfo.upgradelocation) $ do
{- Check for upgrade on startup, unless it was just
- upgraded. -}
unlessM (liftIO checkSuccessfulUpgrade) $
checkUpgrade urlrenderer
h <- liftIO . newNotificationHandle False . networkConnectedNotifier =<< getDaemonStatus
go h =<< liftIO getCurrentTime
where
{- Wait for a network connection event. Then see if it's been
- half a day since the last upgrade check. If so, proceed with
- check. -}
go h lastchecked = do
liftIO $ waitNotification h
autoupgrade <- liftAnnex $ annexAutoUpgrade <$> Annex.getGitConfig
if autoupgrade == NoAutoUpgrade
then go h lastchecked
else do
now <- liftIO getCurrentTime
if diffUTCTime now lastchecked > halfday
then do
checkUpgrade urlrenderer
go h =<< liftIO getCurrentTime
else go h lastchecked
halfday = 12 * 60 * 60
checkUpgrade :: UrlRenderer -> Assistant ()
checkUpgrade urlrenderer = do
debug [ "Checking if an upgrade is available." ]
go =<< downloadDistributionInfo
where
go Nothing = debug [ "Failed to check if upgrade is available." ]
go (Just d) = do
let installed = DottedVersion.normalize BuildInfo.packageversion
let avail = DottedVersion.normalize $ distributionVersion d
let old = DottedVersion.normalize <$> distributionUrgentUpgrade d
if Just installed <= old
then canUpgrade High urlrenderer d
else if installed < avail
then canUpgrade Low urlrenderer d
else debug [ "No new version found." ]
canUpgrade :: AlertPriority -> UrlRenderer -> GitAnnexDistribution -> Assistant ()
canUpgrade urgency urlrenderer d = ifM autoUpgradeEnabled
( startDistributionDownload d
, do
#ifdef WITH_WEBAPP
button <- mkAlertButton True (T.pack "Upgrade") urlrenderer (ConfigStartUpgradeR d)
void $ addAlert (canUpgradeAlert urgency (distributionVersion d) button)
#else
noop
#endif
)