lock free dirstate - prototype

[Robert Collins]

On Tue, 2009-09-29 at 17:10 +1000, Andrew Cowie wrote:
> On Tue, 2009-09-29 at 15:52 +1000, Robert Collins wrote:
> 
> > We have a requirement ... to fix the way we manage
> 
> So I don't mean to be obtuse, but perhaps you can just mention to those
> of us who are lurking and listening to a discussion of
> yet-another-format with gnawing horror why a new format is required?

Have a look at the bugs linked from my dirstate2 branch; those bugs are
not fixable without changing the working tree format. The requirement to
fix stuff, is to *REDUCE* the number of new formats and their exposure
during development. Go back, oh, 4-5 months and look for a long
thread :).

>         [if that is what you are actually talking about? I'm fully aware
>         I could be completely misunderstanding what you're talking
>         about]
> 
> It seems to me that you just went to extraordinary effort to get 2a
> stabilized and prospectively usable for a considerable time to come — at
> least I thought that was the idea.

We have, and it is.

> Should be telling projects to hold off upgrading to 2a in favour of
> upgrading to this new format instead?

No, this is a tree format only, its totally local. Upgrade to 2a.
Please.

Rob
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