[Yum-devel] Depsolving I don't understand

[James Antill]

On Sun, 2009-04-05 at 23:01 +0200, Jeroen van Meeuwen wrote:
> I found the following situation:
> 
> On an x86_64 system, I get a list of package names (['foo']).
> I resolve the package names to actual available packages (pos),
> and select them all (sorry 'bout that)
> 
> Then of course, given pkgpolicy=newest and multilib_policy=best, yum -d9 
> shows the following as a result of yum/depsolve:993:_compare_providers() 
> (in order of best match, see snippet below):
> 
> foo-1.0.x86_64, foo-1.1.x86_64, (both equal score)
> foo-1.0.i386, foo-1.1.i386 (both equal but lower score)
> 
> The resulting transaction has foo-1.0.x86_64.
> 
> My question here is, shouldn't _compare_providers() take into account 
> version numbers as well?

 No, at least not in the same way YumBase.install() does. For instance
say you do "yum install foo-1.0" and then hit the above situation due to
deps. _compare_providers() shouldn't update from what you wanted.
 Also _compare_providers() mostly works on packages of different names,
so comparing them via. versions is a bad idea.

-- 
James Antill <james at fedoraproject.org>
Fedora