On Mon, Sep 27, 2021 at 8:30 AM Jaroslav Mracek <jmracek(a)redhat.com> wrote:
> 2. What happens if package P (already installed on the
user's system)
> starts recommending package Q (not installed on the user's system)? Will
Q
> get auto-installed together with P's update, or not? I believe it's
> important to keep auto-installation enabled for *new* weak relationships.
New weak dependencies of package P are installed.
Installed P-1-1.noarch (no recommends)
Available P-1-2.noarch (recommends ddd) will install ddd on upgrade if
possible.
> 3. Similarly to above (perhaps exactly the same case), what happens when
> package Q (not installed) starts supplementing package P (installed),
will
> it get auto-installed or not?
No, Q will be not installed. With supplements it is difficult to known
when it appears, because that information is not on RPMDB.
While it makes sense technically, this might be quite confusing for
packagers. Up until now I think there were no real-world differences
between forward (recommends) and backward (supplements) dependencies. This
(and also the first answer) should get documented in the Change proposal
and in the packaging guidelines [1]. Can you please add an action item to
the proposal to adjust relevant Fedora docs?
[1]
https://docs.fedoraproject.org/en-US/packaging-guidelines/WeakDependencies/