[RFC] make all-in-one formats upgrade-only

[Robert Collins]

On Tue, 2007-06-26 at 08:20 +1000, Martin Pool wrote:
> On 6/26/07, Aaron Bentley <aaron.bentley at utoronto.ca> wrote:
> 
> > I just managed to waste a good few hours trying to sort out why bundle
> > format 4 didn't work with weave repositories.
> >
> > The good news is that format 4 *does* work with weave repositories.  So
> > long as you use "metaweave", not "weave".  Our all-in-one formats don't
> > support that the update command, but the bundle test suite relies on it.
> >
> > The metadir formats were introduced with Bazaar 0.8, a bit more than a
> > year ago.  It seems like the all-in-one formats don't have good test
> > coverage, and without that, I think it makes sense to relegate them to
> > upgrade-only status.
> 
> +1 from me.  I think Robert was asking about this the other day.
> Dapper has a version of bzr which uses a knit format fwiw.

I'm ok with it, though foreign branches work as all-in-one for at least
hg and darcs and other all-in-one systems, so I'd rather we don't change
our contract.

What is it about the bundle test suite that requires a different tree
pointer to branch pointer?

-Rob
-- 
GPG key available at: <http://www.robertcollins.net/keys.txt>.
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