Re: [PATCH 2/2] repository: allow repository format upgrade with extensions

> Jeff King <peff@peff.net> writes:
> 
> > Subject: verify_repository_format(): complain about new extensions in v0 repo
> >
> > We made the mistake in the past of respecting extensions.* even when the
> > repository format version was set to 0. This is bad because forgetting
> > to bump the repository version means that older versions of Git (which
> > do not know about our extensions) won't complain. I.e., it's not a
> > problem in itself, but it means your repository is in a state which does
> > not give you the protection you think you're getting from older
> > versions.
> >
> > For compatibility reasons, we are stuck with that decision for existing
> > extensions. However, we'd prefer not to extend the damage further. We
> > can do that by catching any newly-added extensions and complaining about
> > the repository format.
> 
> Looking good overall, but I needed this to build from the source.