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suggest when user may want annex.stalldetection

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When annex.stalldetection is not enabled, and a likely stall is detected,
display a suggestion to enable it.

Note that the progress meter display is not taken down when displaying
the message, so it will display like this:

	0%    8 B                 0 B/s
	  Transfer seems to have stalled. To handle stalling transfers, configure annex.stalldetection
	0%    10 B                0 B/s

Although of course if it's really stalled, it will never update
again after the message. Taking down the progress meter and starting
a new one doesn't seem too necessary given how unusual this is,
also this does help show the state it was at when it stalled.

Use of uninterruptibleCancel here is ok, the thread it's canceling
only does STM transactions and sleeps. The annex thread that gets
forked off is separate to avoid it being canceled, so that it
can be joined back at the end.

A module cycle required moving from dupState the precaching of the
remote list. Doing it at startConcurrency should cover all the cases
where the remote list is used in concurrent actions.

This commit was sponsored by Kevin Mueller on Patreon.
This commit is contained in:
Joey Hess 2021-02-03 15:35:32 -04:00
parent 7db4e62a90
commit dd39e9e255
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GPG key ID: DB12DB0FF05F8F38
18 changed files with 160 additions and 101 deletions
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4
Command/TransferKey.hs
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@ -51,7 +51,7 @@ start o (_, key) = startingCustomOutput key $ case fromToOptions o of
toPerform :: Key -> AssociatedFile -> Remote -> CommandPerform
toPerform key file remote = go Upload file $
upload' (uuid remote) key file stdRetry $ \p -> do
upload' (uuid remote) key file Nothing stdRetry $ \p -> do
tryNonAsync (Remote.storeKey remote key file p) >>= \case
Right () -> do
Remote.logStatus remote key InfoPresent
@ -62,7 +62,7 @@ toPerform key file remote = go Upload file $
fromPerform :: Key -> AssociatedFile -> Remote -> CommandPerform
fromPerform key file remote = go Upload file $
download' (uuid remote) key file stdRetry $ \p ->
download' (uuid remote) key file Nothing stdRetry $ \p ->
logStatusAfter key $ getViaTmp (retrievalSecurityPolicy remote) (RemoteVerify remote) key file $ \t ->
tryNonAsync (Remote.retrieveKeyFile remote key file (fromRawFilePath t) p) >>= \case
Right v -> return (True, v)