On Wed, Nov 12, 2014 at 03:35:43PM +0100, Jan Pazdziora wrote:
> On Wed, Nov 12, 2014 at 03:02:43PM +0100, Jakub Hrozek wrote:
> > On Wed, Nov 12, 2014 at 02:48:28PM +0100, Jan Pazdziora wrote:
> > >
> > > I think Requires(pre) is the recommended syntax these days. It helps
> > > people remember that they can also use it for other scriptlet times if
> > > they need to.
> >
> > Hmm, doesn't Requires(pre) specify what is required for the %pre
> > scriptlet?
>
> Right. I thought that's what you wanted. The point is, pure Requires
> merely states what requirements should be fulfilled once the
> transaction finishes. By using Requires(...), you state requirement
> for the particular phase of the transaction.
Sorry, I was ambiguous. What we have now is a dependency like this:
sssd-krb5 -- sssd-krb5-common -- sssd-common
-- sssd-common
In some cases, I saw that yum/RPM installed sssd-krb5-common first and
only then sssd-common. This breaks because sssd-krb5-common needs a user
that was going to be created in sssd-common's %pre.
Sumit was correct that on the source level we have a strange cycle, but
I don't see that cycle being propagated into the RPM level -- I was able
to install sssd-common w/o sssd-krb5-common just fine ...
>
> Useful for cleanup as well when in %post you want to run something
> that might have been erased by the same transaction.
>
> --
> Jan Pazdziora
> Principal Software Engineer, Identity Management Engineering, Red Hat
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