Re: [Boost-users] What's happened to Ryppl?

Subject: Re: [Boost-users] What's happened to Ryppl?
From: Dean Michael Berris (mikhailberis_at_[hidden])
Date: 2011-01-24 23:49:16

On Tue, Jan 25, 2011 at 11:36 AM, John Wiegley <johnw_at_[hidden]> wrote:
> Dave Abrahams <dave_at_[hidden]> writes:
>
>>> Exactly. Â I'm 98% of the way toward a branchified sequence today.
>>
>> Awesome!
>
> OK, branchification is working! Â All that's left is submodulization as part of
> the same run.
>

Way cool!

>
> Actually, the speed of this script is already too slow, so I'm rewriting it in
> C++ today both for the native speed increase (10x so far, for dump-file
> parsing), and because it lets me use libgit2 (https://github.com/libgit2) to
> create Git objects directly, rather than shelling out to git-hash-object and
> git-mktree over a million times. Â That alone takes over 15 hours to do on my
> Mac Pro. Â Don't even ask how long the git gc takes to run! Â (It's longer).
>

Interesting. I'd love to see the C++ version too. :)

> If anyone wonders whether my process -- which works for any Subversion repo,
> btw, not just Boost -- preserves more information than plain git-svn: consider
> that my branchified Git has just over one million Git objects in it, while the
> boost-svn repository on ryppl has only 593026 right now. Â That means over 40%
> of the repository's objects got dropped on the cutting floor by git-svn's
> hueristics.
>

Coolness! :D So now I think it's a matter of convincing the other
peeps that moving from Subversion to Git is actually a worthwhile
effort. ;)

-- 
Dean Michael Berris
about.me/deanberris