[Yum-devel] Problem using doConfigSetup()

[Brad Smith]

> The standard fedora-core.repo uses $releasever to determine the version,
> which is looked up from rpmdb based on fedora-release package version.
> Since you're pointing yum to alternate root I think it's looking for rpmdb
> within that root (eg /home/brad/Work/yum/trackerRoot/var/lib/rpm), not
> finding it and so the baseurl/mirrorlist for that repo can't be completed
> it fails.

Indeed, that was the problem. When I replace $releasever with an
explicit number everything works fine. This actually touches on an
important issue that I will need to deal with in implementation,
though. Tracker doesn't just index for a single arch/ver combination,
but for pretty much all of them. Hence I will need to, perhaps using a
single config file but different root directories for each, populate
each repo for every arch/ver it supports while indexing.

As such, I need a way to set the arch/ver on-the-fly. I assumed this
would be possible by setting eg my.conf.yumvar['releasever'] just
after doConfigSetup(), but I still get the bad url problem when I do
that.

Is there a way to override the values of basearch, arch and releasever
from within yum?

I noticed these lines in config.py:

yumvars['basearch'] = rpmUtils.arch.getBaseArch()        # FIXME make
this configurable??
yumvars['arch'] = rpmUtils.arch.getCanonArch()             # FIXME
make this configurable??

...so maybe that's just not possible yet?

--Brad