"Robin Jarry" <robin.jarry@xxxxxxxxx> writes: > My main goal is to abort a push if a user hits ctrl-c (or is > disconnected) before the objects have been moved to permanent storage. > > But this always leads to errors on the client side when receive-pack > sends the "keepalive packet": Yes, you'd need to make all three new combinations work if you touch the protocol. An updated "receive-pack" must be inter-operable with a vanilla "push" as well as an updated "push", and an updated "push" must be inter-operable with a vanilla "receive-pack". You'd need to invent a new protocol capability, advertise it on the updated "receive-pack" side, and the updated "push" must check if the capability is advertized before asking to activate it. Then only after both ends discover that the other side knows how to deal with "keepalive" packets, use that feature.
