Mailinglist Archive: opensuse-factory (1134 mails)

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Re: [opensuse-factory] Build cycles versus rebuild="local"
On Wed, 27 Jun 2012, Stephan Kulow wrote:

On 27.06.2012 10:01, Michal Vyskocil wrote:
Hallo all,

as a Java package maintainer I did a lot of work to avoid bootstrapping
issues (aka build cycles) in openSUSE. That ends in a situation we have
been never able to submit maven into build service, because it creates a
**huge** list of dependencies, so with rebuild="transitive" it will kill
any cluster we will find a budget for ;-)

However with a newly introduced Scheduling Strategies feature, collo
have used rebuild="local" for Factory, so now we have the cycles in
Factory [2]. But probably because of the changed scheduling strategy,
coolo did not blame me as in a past for cycles I've introduced in a
past. But maybe both are tiny comparing to acl->zlib.

Did we changed the approach here? Especially Java packages, where cycles
exists in upstream and no one other takes a care it will be a huge step
forward. And in this case it even do not block the bootstrapping to an
another architecture, as packages are mostly noarch, so can be used

BTW: for Java packages we can be even more relaxed and use
rebuild="manual" and did it only on major jdk change as we did yet

I do care for cycles as they are a problem. Not for factory, but for
staging project(s). But I basically gave up on java, that's true. I
spent so many hours trying to find a solution for it, that it's just not
worth it ;(

But unless we leave java stuff out of factory, we have to find a way
to build it in projects with transitive rebuilds.

Well - we do have another rather big cycle already - you can view it
inside Base:build. It's the cycle that contains GCC. Obviously
there is some existing magic in obs or the project configs that
ignore selected edges in the build dependency graph ... why not
add appropriate java-cycle-edges here?

(oh yes, Base:build uses rebuild=local - so much better than to
never finish building ... ;))


Richard Guenther <rguenther@xxxxxxx>
SUSE LINUX Products GmbH - Nuernberg - AG Nuernberg - HRB 16746
GF: Jeff Hawn, Jennifer Guild, Felix Imend
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