Re: Git mirror - bidrectional

[Stephen J. Turnbull]

David Reitter writes:

 > Looking at the documentation, I see that the "update" hook is
 > designed to do just that.  When a remote repository does a push,
 > the new revisions are sent to the repository, but before the ref
 > (i.e. branch pointer) is updated, this hook is invoked.  It can
 > prevent the update to the ref.

Ah, this is better than what I just suggested.  The doc for
receive-pack isn't as clear as that for hooks.

The main thing that worries me in any such process is that bzr can
take a relatively long time to do a push.

 > What happens when the changes that originated on the git side are
 > re-imported to the git repository?  Would we get double revisions?

I think not.  This is the point of the fastimport format.  Although
it's possible that some metadata present in git objects is not
supplied by bzr.  In that case you would.

 > Also, would importing sidestep the new revisions on the git side
 > because the "marks" file points to an earlier previous revision?

I don't understand precisely what you mean by "importing", "sidestep",
or "new revisions on the git side".