[Yum-devel] group DB

[Jeremy Katz]

On Tuesday, May 26 2009, Seth Vidal said:
> On Fri, 22 May 2009, James Antill wrote:
>> Some thoughts about group DB (having groups as real objects). I mainly
>> wrote this for me, to see if "group DB" was actually possible. I think
>> so :).
[snip]
>> ...a couple of things that fall out of this:
>>
>> i. You can have all the packages for a group installed, but the group
>> not installed.

This has in the past been a contention from a UI perspective

>> ii. You can have a group installed, but no packages from that group
>> installed.

And this definitely feels weird.  What does having the group "installed"
mean then?

Doing this via some yum-only-database still feels like we're going to
get into trouble for all the reasons we had talked about back in January

> and all of the above means we're doing it via a yum "groupdb" of  some  
> kind. I'm not necessarily opposed to it but if:
>
> 1. we could construct rpm hdr objects in memory from python
> 2. we could insert these objects into the rpmdb in a transaction
>
> would that be enough to step around the weird extra db?
>
> specifically it would allow us to make meta-pkg "Group" packages on the  
> fly and have the rpmdb keep things consistent - including something like 
> a "version".

There's still some amount of fiddles and bits perhaps required due to
repo enabling/disabling.  But it feels a little bit better if we can get
the information into the rpmdb rather than more and more dbs in more and
more places...

Jeremy