comps discussion at fudcon and the future

[Chuck Anderson]

On Thu, Jan 15, 2009 at 08:52:08AM -0500, Chuck Anderson wrote:
> On Wed, Jan 14, 2009 at 02:51:52PM -0500, seth vidal wrote:
> > When someone goes to install the group: 'yum groupinstall
> > mygroup-of-fun' or 'yum install @mygroup-of-fun' then yum will grab the
> > comps/groups file from each repo, look if the group you're requesting is
> > there. If so it will create a metapkg rpm (a package containing only
> > requirements) on the packages that exist in the repositories that are
> > listed in that group. Then it will depsolve and install that pkg. The
> > package name will be @mygroup-of-fun. The package version will be a hash
> > of the contents of the package along with a timestamp. It needs to be
> > timestamp-based so the version is increasing so we can 'update' these
> > pkgs.
> 
> Will the installer install @groups or packages?  What if a user 
> installs a @group either with anaconda or yum groupinstall, and they 
> later decide they don't want one of the packages in that group?  How 
> do they remove just one package member?  What is the behavior of "yum 
> remove" on a @group?

Sorry, I missed the 2nd half of this thread where my question above is 
answered:

yum remove @group won't remove any real packages or group members, 
just the metapackage.  You'll also lose the ability to track this 
@group when new group-members appear in the repo(s).

yum remove group-member will remove that group-member and the @group's 
metapackage, leaving all the other group-members there.