[MERGE/RFC] Use Branch.pull() to update master branch.
jelmer at samba.org
Wed Feb 25 18:48:33 GMT 2009
On Wed, 2009-02-25 at 12:07 -0600, John Arbash Meinel wrote:
> Jelmer Vernooij wrote:
> > The attached patch makes the commit code use Branch.pull() to update the
> > master branch when committing to a bound branch.
> > This is required for bzr-svn as it can't update just the repository, it
> > has to update the branch as well. Previously it had some magic in the
> > Repository.fetch() code to handle this, but that is vulnerable to race
> > conditions. (#248289)
> > Is Branch.pull() the right call here, or should I be adding something
> > custom?
> This might be ok. I think the main problem is that we can't update
> self.last_revision until after the data has been fetched to the master.
> So 'new_rev_id' doesn't *exist* in the source branch. So the code
> as-written means that branches must support pull() with a revision that
> is not in their ancestry.
So perhaps we can have a separate function on Branch for this ? It could
take a other_repo and new_revid argument and default to:
if not self.repository.has_same_location(other_repo):
Perhaps Branch.import_new_revision(other_repo, new_revid) ?
Jelmer Vernooij <jelmer at samba.org> - http://samba.org/~jelmer/
Jabber: jelmer at jabber.fsfe.org
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