Rework the dependencies between excuses.
Dependencies are specified based on packages (source or binary). Based
on these packages, dependencies on other excuses (that have these
packages) are calculated.
As with package dependencies, dependencies between excuses can contain
alternatives.
Each alternative can satisfy the dependency, so the excuse only becomes
invalid if all of the alternatives of a specific dependency are
invalidated.
Tracking of the alternatives and their validity is moved to separate
objects.
The code that was supposed to check uninstallability of existing binaries was
broken:
- it only checked arch: all on nobreakall archs, not arch any
- it checked if the new binary was in testing (this never happens)
- it doesn't work when binaries from both unstable and tpu are needed
Note that _excuse_unsat_deps() now handles nobreakall correctly.
don't show information about unsatisfiable depends that is not blocking
migration:
* arch all not on nobreakall arch
* arch any or arch all on breakarch
Also, set verdict to REJECTED_PERMANENTLY explicitly. This was already done
implicitly, because that is the default and it was never set to anything else.
Also, set verdict to REJECTED_PERMANENTLY explicitly. This was already done
implicitly, because that is the default and it was never set to anything else.
With this change, we reduce the number of migration items creted only
to be discarded because the item is not relevant/actionable.
Signed-off-by: Niels Thykier <niels@thykier.net>
Ivo De Decker
Paul Gevers
Niels Thykier