Arseniy Alekseyev <aalekseyev@janestreet.com> [Mon, 05 Jun 2023 11:07:08 +0200] rev 50642
revlog: fix a bug in revlog splitting
Specifically, if the .i.s files are not added to the transaction,
then a follow-up modification of such a file records it into transaction
as non-empty, which is incorrect.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 29 May 2023 18:41:58 +0200] rev 50641
stream-clone: smoothly detect and handle a case were a revlog is split
This detect and handle the most common case for a race condition around stream
and revlog splitting. The one were the revlog is split between the initial
collection of data and the time were we start considering stream that data.
In such case, we repatch an inlined version of that revlog together when this
happens. This is necessary as stream-v2 promised a specific number of bytes and
a specific number of files to the client. In stream-v3, we will have the
opportunity to just send a split revlog instead.
Getting a better version of the protocol for stream-v3 is still useful, but it
is no longer a blocket to fix that race condition.
Note that another, rarer race condition exist, were the revlog is split while
we creating the revlog and extracing content from it. This can be dealt with
later.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 29 May 2023 14:07:58 +0200] rev 50640
stream-clone: implement decidated `get_streams` method for revlog
For revlog, we can do better using the maximum linkrev expected. This approach
open the way to dealing with a much larger set of non-trivial changes, like
splitting of inline revlogs.
We will actually tackle this issue in the next changesets (thanks to this one).
Pierre-Yves David <pierre-yves.david@octobus.net> [Sun, 28 May 2023 05:52:58 +0200] rev 50639
stream-clone: make it the responsability of the store entry to stream content
The store entry has more context, this will especially be true when it comes to
revlogs. So we move the details of how to retrieve binary content to the
StoreEntry. The stream clone code now focus on the protocol bits.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 29 May 2023 11:42:16 +0200] rev 50638
store: declare a `files` method on BaseStoreEntry
This will help pytype to type check. We have to move `StoreFile` earlier in the
file to use it in the type declaration.
Pierre-Yves David <pierre-yves.david@octobus.net> [Sun, 28 May 2023 05:23:46 +0200] rev 50637
revlog: add a `get_revlog` method
This might seen weird, but I actually thing we have been needing this for a
long time. There is multiple object that kind of pretend being revlogs while
actually wrapping the actual revlog. Since multiple code needs to access the
actuel revlog. See documentation for more details.
Expect cleanup of various places one the current series is done.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 29 May 2023 04:26:39 +0200] rev 50636
stream-clone: drop the _emit_v2 function
It has no user left.