client push to remote

[Sebastian Thiel (Byron)]

As in git push.

Tasks

• git-odb

  • basic pack generation based on tree-diff or tree-traversal

• Traversal (as building blocks to feed pack generation)

  • Traverse a commit graph (look around to see what's common, if in doubt walk back the commit graph and see how to deal with branching)
  • Traverse trees
  • best-fit delta objects creation using the imara-diff, or maybe something custom if that's what git does.

• git-protocol

  • ReceivePack logic for V1 and V2
  • async & blocking negotiation of commits (see push.negotiation)

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Original issue: #306