[CentOS-devel] RPMS and REPOS and REPO-Linkages

Tue Nov 14 00:08:50 UTC 2006
seth vidal <skvidal at linux.duke.edu>

On Tue, 2006-11-14 at 00:05 +0000, Karanbir Singh wrote:
> When an rpm is built for CentOS-Extras or CentOS-Plus, is it safe to 
> assume that people using these repo's only use them for specific rpms ( 
> eg, someone with a stock CentOS install might use the CentOS-Plus repo 
> for php-5 and only php-5 ) or are most people enabling the entire repo ?
> This question comes from the idea of when building a package, should a 
> rpm, hosted in CentOS-Plus link against only [base]+[updates] and only 
> use the minimum possible set of packages from [centosplus] ? So as to 
> have a situation wherein you can use selective packages from 
> CentOS-Plus, while not needing any support stuff from there ( eg. 
> postfix-mysql in CentOS-Plus should link against mysql-4.1 since thats 
> whats in [base] rather than mysql-5 which is in CentOS Plus )
> This does create a risk that we might end up creating packages that are 
> themselves incompatible with other packages from the same repository, 
> but work fine when used with the [base] packages for the same functionality.
> The other option is to have the entire CentOS-Plus repo enabled for any 
> packages built for the same repo, which might mean that using php-5 from 
>   CentOS-Plus needs MySQL-5 and pgsql-8 from CentOS Plus also installed.

I'd say centos-plus can rely on centos-plus in total and base+updates.

either you have the repo enabled or you don't. Fence sitters can just