setup and 'provides:'

[cyg Simple]

On 10/7/2018 6:02 PM, Ken Brown wrote:
> I've been experimenting with setup's support for the 'provides:' tag, and it's 
> not behaving the way I expect [*].  I'm not sure if something in setup's 
> interface with libsolv needs to be tweaked or if I'm just misunderstanding how 
> this should work.  Here's what I tried:
> 

Shouldn't there be a need for a 'conflicts:' tag as well?

> I created a test repo with packages A, B, and C.  I made A require foo (not a 
> package), and I made B and C provide foo.  The attached script does all this 
> [**].  I then ran setup and selected A for installation.
> 

So C:foo conflicts with B:foo.

> The result was that libsolv simply chose B for installation, and setup showed 
> this in the "Confirm" dialog.  What I expected was that libsolv would report a 
> problem ("A requires foo but no selected or installed packages provide it"), 
> with two possible solutions ("Install B or C").  Is that expectation unreasonable?
> 

Not unreasonable but what happens if B:foo is already installed and
C:foo is the required because the functionality is slightly different?

-- 
cyg Simple