[MERGE][1.6] Deprecate knit repositories.

[Martin Pool]

On Fri, Jul 25, 2008 at 12:42 AM, John Arbash Meinel
<john at arbash-meinel.com> wrote:

> So, one of the big complaints about how we did this with weaves, is that
> we did it every time you accessed one, even if it was someone else's branch.
>
> So doing: "bzr branch http://someone/else" would warn you to upgrade
> that branch.
>
> Aaron's (reasonable) position was that we should only warn when you take
> out a write-lock on the branch.
>
> I realize that is significantly more effort (which is why we didn't do it.)
>
> But I know our users will be a little bit annoyed with having this message.
>
> That said, we've let knits regress (performance wise) tremendously, and
> unless we restore at least the transaction cache, then I think something
> like this is necessary.

I have seen several people in the last few weeks be confused by Bazaar
being really slow because they're pulling from a knit branch.  So for
these people only warning when writing or when a write lock is taken
would clue them in.  There will be people who know they want to keep
an old branch format but I think the majority of users would rather be
warned.

I do agree that finer grained control over warnings in general, not
just for old formats, would be useful.  But it's a separate issue.

-- 
Martin <http://launchpad.net/~mbp/>