[PATCH] rebase: invalidate caches before stripping (issue1951)

[Stefano Tortarolo]

2010/2/11 Dirkjan Ochtman <dirkjan at ochtman.nl>

> On Thu, Feb 11, 2010 at 11:51, Stefano Tortarolo
> <stefano.tortarolo at gmail.com> wrote:
> > Well, the problem is that strip uses an old branchcache and fails in
> finding
> > the node.
> > Hence, strip fails -> rebase fails.
> > That's exactly what happens in issue1951.
>
> Well, I think it'd be better to update the cache instead of removing
> it. Removing it will mean the next thing that has to instantiate it
> will be *very* slow, so it would be nice if we could prevent that.
>
> Cheers,
>
> Dirkjan
>

Yes, it would be better if we could update just the cache, but should rebase
modify branchcache "manually"?
It doesn't seem to exist a suitable function to ask for a branchcache
update.

However, I've written a draft and it works. There are several corner cases
though.
I'll post something asap.

Cheers,
Stefano
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