** Changed in: python-debian (Ubuntu)
Status: Confirmed => Fix Released
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https://bugs.launchpad.net/bugs/1945205
Title:
[FFe] Add zstd support
Status in python-debian package in Ubuntu:
Fix Released
Bug description:
[Feature Freeze Exception]
Now that dpkg-deb defaults to compressing with zstd, python-debian can
no longer decompress the compressed data into the binary package
archive [1].
The proposed change, created as an MP at [2], introduces zstd support
to python-debian 0.1.39 by adding a dependency to zstd to the package
and by extending the python-debian xz support for python < 3.3, where
xz was still not supported by tarfile, to also support the zstd
compression.
It is also important to note that, for python-debian 0.1.40, the
relevant (here patched) code was re-worked (python < 3.3 support was
dropped) and this proposed patch, along with the relevant proposed
unit test, will need to be re-written. This re-writing effort is
already an ongoing work proposed upstream in [3].
Once [3] is merged, this patch can be dropped and python-debian can be
sync'd from upstream again. If there is a need to merge python-debian
before [3] is accepted and released upstream, the next version of
python-debian will need to drop the proposed patch and apply [3]
instead, for the reasons listed above.
While python-debian is not completely broken without this FFe patch,
some of its features will not work properly on Ubuntu packages now
they are compressed with zstd. For instance, any packages or scripts
that try to use python-debian for extracting data from deb packages
will no longer work. Namely, dh-cmake FTBFS when trying to decompress
a deb package during its unit test run step [4].
A PPA with the proposed fix is available at [5], along with the build
logs.
I ran the dep8 test suite locally with the following results:
autopkgtest [20:04:02]: @@@@@@@@@@@@@@@@@@@@ summary
python3-debian PASS
I am also attaching the logs for installation, removal and upgrades of
the patched package.
[1] https://bugs.launchpad.net/ubuntu/+source/python-debian/+bug/1923845
[2]
https://code.launchpad.net/~athos-ribeiro/ubuntu/+source/python-debian/+git/python-debian/+merge/407413
[3]
https://salsa.debian.org/python-debian-team/python-debian/-/merge_requests/65
[4]
https://launchpadlibrarian.net/552708462/buildlog_ubuntu-impish-amd64.dh-cmake_0.6.1_BUILDING.txt.gz
[5]
https://launchpad.net/~athos-ribeiro/+archive/ubuntu/lp-1923845-python-debian/+packages
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