Taskotron depcheck broken/incomplete (was: Re: Removing packages that have broken dependencies in F21 tree)

[Kevin Kofler]

Adam Williamson wrote:
> http://tirfa.com/current-state-of-depcheck-and-paths-forward.html

Sigh. This shows that once again a purported replacement for a working piece 
of software was deployed before it was able to perform the allegedly 
replaced tool's most important task, even though the problem was known to 
the replacement's developers. We really should not accept this kind of known 
regressions.

> I'm sort-of volunteered to write the approach I suggested in a comment
> as a new test, but it's going to have to wait until at least post-f21.

Your approach indeed makes sense. It will not cause issues caused by added 
Conflicts or the like, but at least it catches the common case. (Just make 
sure you also consider Obsoleted packages as "the old package" whose 
Provides will no longer be available.)

        Kevin Kofler