What would be needed to allow a server to send a pack?

Tasks

Server fetch/pull (server to client)

• git-odb

The below is a very early draft - it would be better to study existing implementations first to get a better overview on what (not) to do.
This one starts with the fun part to allow writing tests early and experiment with different diff algorithms and potentially their performance.

• generate a pack from objects received by an iterator producing (see issue)
  • base objects only
  • re-use existing delta objects
  • A mechanism to declare some bases to be 'out of pack' for thin pack support
• Iterator to feed pack generation efficiently
• pack creation

• git-transport

Certainly needs more research, but roughly…

• Server side accept()

  • http(s)
  • ssh
  • daemon probaby only used in testing, and we might implement it if it's useful for us as well

• git-protocol

  • Server side chatter to negotiate a pack for
    • protocol V2
    • protocol V1 (probably not worth it, let's see)

• gix-serve

Probably more like a toy at first merely for testing operation against various git clients.

• A server able to answer via
  • http(s)
  • file protocol (or remote invocation via SSH)
  • git://

Notes

• Could something like gittorrent be build using the plumbing of the server? Is it desirable even? Can there be some differentiation to allow custom transport layers easily?