We currently have excuses.html saying:
x264 (2:0.155.2917+git0a84d98-2 to 2:0.159.2999+git296494a-2)
Migration status for x264 (2:0.155.2917+git0a84d98-2 to 2:0.159.2999+git296494a-2): BLOCKED: Cannot migrate due to another item, which is blocked (please check which dependencies are stuck)
Issues preventing migration:
Implicit dependency: x264 nageru (not considered)
Invalidated by implicit-dependency
Implicit dependency: x264 ffmpeg
Implicit dependency: x264 gst-plugins-ugly1.0
Implicit dependency: x264 handbrake
Implicit dependency: x264 libquicktime
Implicit dependency: x264 mplayer
Implicit dependency: x264 mythtv
Implicit dependency: x264 obs-studio
Implicit dependency: x264 vlc
Implicit dependency: x264 xpra
Additional info:
8 days old
Apart from `nageru` it's not clear here that some further packages need
working on to move this migration forward. In fact, the package
`gst-plugins-ugly1.0` is FTBFS
Migration status for gst-plugins-ugly1.0 (1.16.2-2build2 to
1.16.2-2build3): BLOCKED: Maybe temporary, maybe blocked but Britney
is missing information (check below)
as is xpra. The remaining packages are simply those which are part of
this SONAME transition, as such they have
Migration status for mplayer (2:1.3.0-8build6 to 2:1.3.0-8build7):
BLOCKED: Cannot migrate due to another item, which is blocked (please
check which dependencies are stuck)
All of these excuses are (or should be) "invalid", but only the ones
which are not BLOCKED_BY_ANOTHER_ITEM require direct action. We should
show this, so that maintainers can see what they need to concentrate on.
When outputting depdencency problems, consider the policy verdict of the
excuse. If it's one that indicates further work is required for that
excuse, indicate this by outputting "(not considered)".
Hint to allow smooth update, even if the section isn't allowed in the
configuration.
Note that this takes the source name and the source version IN TESTING
of the binaries that must be allowed to stay around to allow a smooth
update.
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.
Adding a source parameter to the SourcePackage allow finding the source
the object is referring to, so that parameter doesn't have to be passed
along separately.
Signed-off-by: Ivo De Decker <ivodd@debian.org>
If a new pseudo-essential package was added to testing *and* it is
mutually-exclusive with an existing member, britney would incorrectly
flag it as uninstallable (unless another change triggered a cache
invalidation of the pseudo-essential set).
With this commit, the cache invalidation is now done based on whether
we add something that *might* be in the (effective) pseudo-essential
set. It is an overapproximation as there are cases where the
invalidation is unnecessary, but at the moment it is not a performance
concern.
Closes: https://bugs.debian.org/944190
Signed-off-by: Niels Thykier <niels@thykier.net>
The optimizations relies on assumptions that are not valid with the
allow-uninst that has not been corrected. When these assumptions, we
end up with invalid nuninst counters.
Signed-off-by: Niels Thykier <niels@thykier.net>
When an allow-uninst hint is added for an unversioned binary package, items
are allowed to migrate, even if they make that binary package uninstallable
(on the architecture specified in the hint, if one was specified, or on all
architectures otherwise).
Using this hint should avoid using force-hint to allow specific breakage.
Signed-off-by: Ivo De Decker <ivodd@debian.org>
We allow this already now even though dpkg/1.19.1 is not in stable as
it will not cause issues with upgrades (only dpkg-checkbuilddeps
needed change, so it will not cause issues on the buildds as we can
rely on dpkg from buster being present there).
Signed-off-by: Niels Thykier <niels@thykier.net>
The recent code changes made use remove from the "binaries" field in
SourcePackages. Lists are not particularly optimized for this kind
of removal and we have a few source packages with a lot of binary
packages (e.g. libreoffice, gcc-X-cross{,-ports}) that might trip
poor performance.
Signed-off-by: Niels Thykier <niels@thykier.net>
This test checks if every binary in the target suite is listed as a binary for
its source package and vice-versa.
This adds a config option check_consistency_level:
0: no checks
1: only check at the end
2: also check for every hint run (default)
3: check for every transaction (slow - only useful for the testsuite)
Signed-off-by: Ivo De Decker <ivodd@debian.org>
This is a step towards making migration unit-testable. This step
reduces the need for global state (in the MigrationItem class as class
fields) and with another step we can remove the global state entirely
and enable unit tests to create migration items without having to
worry about other unit tests.
Signed-off-by: Niels Thykier <niels@thykier.net>
All types of dependencies between excuses (Depends, Build-Depends,
Build-Depends-Indep, ...) are handled by the same code. The DependencyType is
used to distinguish between the types where needed.
Signed-off-by: Ivo De Decker <ivodd@debian.org>
When we try to compute_groups for a group which has a source or a binary with
a lower version than testing, throw an exception. In the cases where this can
happen, the exception is caught. In other cases, it is not and it serves as an
assert.
This can only happen when there are multiple candidates (from multiple suites)
changing the same source or binary.
This should fix the ordering issues tested in these tests:
- tpu-unstable-binnmu
- binnmu-tpu
- tpu-with-unstable-binnmu
With this change, it should be possible to accept binNMUs from *pu again.
Signed-off-by: Ivo De Decker <ivodd@debian.org>
This isolates the undo handling in the new transaction object and in
doop_source, which currently generates the undo items. This commit
will be a stepping stone to rewriting the undo handling.
Signed-off-by: Niels Thykier <niels@thykier.net>
When calculating smooth updateable binaries, filter out cruft binaries from
unstable, because they will not be part of the set of packages that britney
will try to migrate to testing.
Signed-off-by: Ivo De Decker <ivodd@debian.org>
Iain Lane
Iain Lane
Colin Watson
Ivo De Decker
Niels Thykier