[Monotone-devel] Re: monotone CVS import failed.

[Jon Smirl]

On 10/17/06, Markus Schiltknecht <address@hidden> wrote:
> Hi,
>
> Wow, thank you for trying! I'm surprised and honored ;-)

I have been trying with cvs2svn for three months now and progress
isn't happening. You at least seem interested in making things work
right for Mozilla.

> Jon Smirl wrote:
> > You can get the Mozilla CVS repository here:
> > rsync -az cvs-mirror.mozilla.org::mozilla ~/mozilla/cvs-mirror
> > The import was about 85% through the revs, 1.1M total.
>
> Why do you think it's 85%? Are you expecting more than 894,279 versions?
> How did you count them? I'm sure there's a difference in counting or a
> bug in my code ;-)

cvs2svn reports somewhere between 1.0 and 1.1M revisions.

> > I attached gconfig/nsinstall/nsinstall.c,v but I don't see anything
> > obviously wrong with it.
>
> You are right, it hits a TODO. But that one certainly is after
> collecting all the CVS versions in blobs. It's just before the toposort,
> when trying to resolve circular deps. As I've told you, blob splitting
> in not implemented, sorry.

Let me know as soon as your code is ready. I know where most of the
tricky cases are located in the Mozilla repo. We can work together to
get me a good import and you some debugged code.

> And repositories as huge as mozilla's certainly have some dependency
> cycles, thus blobs would have to be split. Which is exactly what's still
> missing. As soon as I have some free time I'll try to implement that
> function.
>
> Did you watch memory consumption? Any idea how much it took? I think I
> can still optimize memory consumption, because I probably use that
> shared_ptr to often. But I'm optimistic, that all the algorithm can run
> in memory on a modern system.

Around 1.2GB when it died.

> I had the whole mozilla repo lying around one day, but then needed some
> free disk space and deleted it. I now take FreeBSDs cvs repo, which I
> still have around. It's around 3 Gb in size.

Mozilla is 4.2GB. It is good because it contains over 10 years of
commits and no giant files are checked into it. Some of the files have
3-4K revisions.

> Regards
>
> Markus


--
Jon Smirl
address@hidden