[Fedora-packaging] Re: Full repo rebuilds

[Axel Thimm]

On Tue, Apr 10, 2007 at 08:48:44AM -0400, Jesse Keating wrote:
> On Tuesday 10 April 2007 02:55:47 Axel Thimm wrote:
> > No, that's not the truth, we had them for every release until now,
> > only F7 got skipped. Check the repo if you can't remember.
> 
> We haven't on core side.

It depends on what you call a full rebuild. The core side has always
rebuilt >= 95% of all packages, most release much more than 99%. I
would call that very close to a full rebuild.

Here are the numbers of the amount of Core packages rebuilt per
release. FC1 gets 100% because I don't have the RHL9 packages handy,
but anyway (for > 99% I added as many digits as neccessary to show
what wasn't rebuilt):

1 100%
2 99.7%
3 100%
4 96.6%
5 99.991%
6 95%
7 80%

So as you see, up to F7 Core had really been effectively rebuilt on
each release with FC4 and FC5 being the most "sloppy" ones leaving
3.4% and 5% resp. not rebuilt. With F7 Core drops down to 80% rebuild
rate. This *is* a new release model.

Just looking at what hasn't been requilt: Some packages like
bitstream-fonts really don't deserve a rebuild (they also don't
deserve a disttag FWIW), but others like bridge-utils that depend on
kernel-headers at build time possibly do, and now we're running with
bridge-utils built against 2.6.18.

Instead of checking each package whether it should be rebuilt or not,
it is easier, faster and correcter to do a full rebuild at release
freezing time in the development cycle.

> We've done targetted rebuilds of things for specific changes, not
> every single package.  Many noarch packages were not rebuilt for a
> period of time.  With FC6 we rebuilt every package that hadn't yet
> been built by our new buildsystem, as well as any compiled package
> that wasn't compiled with the new gcc.

Check the repos, you'll find the same numbers I wrote above.
-- 
Axel.Thimm at ATrpms.net
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