Switch to DNF in Koji?

[Dennis Gilmore]

On Friday, May 22, 2015 01:26:16 PM Miroslav Suchy wrote:
> Dne 21.5.2015 v 21:02 Dennis Gilmore napsal(a):
> > It will not be good enough, when the builders go to fedora 22 we
> > will have to use yum-deprecated and not yum.  this is all seriously
> > a huge mess that needs to not be rushed. it needs to not be a
> > True/False type setup it needs to be if there is a install command
> > for the tag, that can be inherited  use that, if not use yum.
> 
> This is already handled by Mock. On F22 when Mock should use yum it
> use yum-deprecated.
> https://bugzilla.redhat.com/show_bug.cgi?id=1211978

That is not a workable solution. we have to overwrite the site-defaults.cfg 
and have it work across rhel and fedora builders in fedora. the solution 
really needs to be a combination of things. I think the koji code needs to 
assume that there could be multiple possible backends, so we can set yum, yum-
deprecated, dnf.  but additionally mock needs to really know that if the host 
is f22 or newer or rhel8(big assumption here) or newer and you say yum is the 
backend you mean yum-deprecated. I am assuming yum-deprectaed will be in one 
of RHEL or EPEL. 

> > we also need to ensure that it will work with mock in rhel5 that
> > does not support setting the backend command.
> 
> We have some builder, which use rhel5? Mock are not released for RHEL5
> for some time.
> And if you put into config some option, which mock does not recognize,
> then it will be simply ignored. It will be just unused variable.
> So unless you want to build F23 packages on RHEL5 host, then this will
> work.
yes, so long as mock does not choke on unkown config options we should be 
okay.

Dennis
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