Daniel Barkalow <barkalow@iabervon.org> writes:

quoted text
> On Mon, 5 Nov 2007, Junio C Hamano wrote:
>
>> The upload-pack protocol goes "S: here are what I have, C: I
>> want these, C: I have these, S: ok, continue, C: I have these,
>> S: ok, continue, C: I have these, S: ok, I've heard enough, C:
>> done, S: packfile is here", so after packfile generation starts
>> there is nothing further the downloader can say.
>> 
>> Otherwise you would be able to do the tag following using the
>> same connection, but that is unfortunately not a case.
>
> It would be nice if this could continue...

You would need a protocol extension for this, as the protocol
defines all the remainder after the have-ack exchange to be
intended for unpack-objects, not just the data for a single pack
that immediately follows the exchange.  Mysteriously,
unpack-objects even has code to write out the remainder after
the pack data.

The protocol extension would probably need to depend on the
existence of sideband.  Make the sending side signal the end of
the pack data over the sideband after sending a pack, and then
both sides can go back to the "C: I want these too, S: Ok, here
it is" exchange.  You may optionally want to do another have-ack
exchange here, but for the purpose of tag following I suspect
there is no need for that.
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