git-annex/Assistant/Threads/TransferPoller.hs
Joey Hess b6d46c212e git-annex (5.20140402) unstable; urgency=medium
* unannex, uninit: Avoid committing after every file is unannexed,
    for massive speedup.
  * --notify-finish switch will cause desktop notifications after each
    file upload/download/drop completes
    (using the dbus Desktop Notifications Specification)
  * --notify-start switch will show desktop notifications when each
    file upload/download starts.
  * webapp: Automatically install Nautilus integration scripts
    to get and drop files.
  * tahoe: Pass -d parameter before subcommand; putting it after
    the subcommand no longer works with tahoe-lafs version 1.10.
    (Thanks, Alberto Berti)
  * forget --drop-dead: Avoid removing the dead remote from the trust.log,
    so that if git remotes for it still exist anywhere, git annex info
    will still know it's dead and not show it.
  * git-annex-shell: Make configlist automatically initialize
    a remote git repository, as long as a git-annex branch has
    been pushed to it, to simplify setup of remote git repositories,
    including via gitolite.
  * add --include-dotfiles: New option, perhaps useful for backups.
  * Version 5.20140227 broke creation of glacier repositories,
    not including the datacenter and vault in their configuration.
    This bug is fixed, but glacier repositories set up with the broken
    version of git-annex need to have the datacenter and vault set
    in order to be usable. This can be done using git annex enableremote
    to add the missing settings. For details, see
    http://git-annex.branchable.com/bugs/problems_with_glacier/
  * Added required content configuration.
  * assistant: Improve ssh authorized keys line generated in local pairing
    or for a remote ssh server to set environment variables in an
    alternative way that works with the non-POSIX fish shell, as well
    as POSIX shells.

# imported from the archive
2014-04-02 21:42:53 +01:00

56 lines
1.8 KiB
Haskell

{- git-annex assistant transfer polling thread
-
- Copyright 2012 Joey Hess <joey@kitenet.net>
-
- Licensed under the GNU GPL version 3 or higher.
-}
module Assistant.Threads.TransferPoller where
import Assistant.Common
import Assistant.DaemonStatus
import Logs.Transfer
import Utility.NotificationBroadcaster
import qualified Assistant.Threads.TransferWatcher as TransferWatcher
import Control.Concurrent
import qualified Data.Map as M
{- This thread polls the status of ongoing transfers, determining how much
- of each transfer is complete. -}
transferPollerThread :: NamedThread
transferPollerThread = namedThread "TransferPoller" $ do
g <- liftAnnex gitRepo
tn <- liftIO . newNotificationHandle True =<<
transferNotifier <$> getDaemonStatus
forever $ do
liftIO $ threadDelay 500000 -- 0.5 seconds
ts <- currentTransfers <$> getDaemonStatus
if M.null ts
-- block until transfers running
then liftIO $ waitNotification tn
else mapM_ (poll g) $ M.toList ts
where
poll g (t, info)
{- Downloads are polled by checking the size of the
- temp file being used for the transfer. -}
| transferDirection t == Download = do
let f = gitAnnexTmpObjectLocation (transferKey t) g
sz <- liftIO $ catchMaybeIO $
fromIntegral . fileSize <$> getFileStatus f
newsize t info sz
{- Uploads don't need to be polled for when the TransferWatcher
- thread can track file modifications. -}
| TransferWatcher.watchesTransferSize = noop
{- Otherwise, this code polls the upload progress
- by reading the transfer info file. -}
| otherwise = do
let f = transferFile t g
mi <- liftIO $ catchDefaultIO Nothing $
readTransferInfoFile Nothing f
maybe noop (newsize t info . bytesComplete) mi
newsize t info sz
| bytesComplete info /= sz && isJust sz =
alterTransferInfo t $ \i -> i { bytesComplete = sz }
| otherwise = noop