[MBF] Obsoleting bzip2 compression in .deb packages

[Guillem Jover <guillem@debian.org>]

Hi!

I'd like to obsolete bzip2 (and lzma) as .deb compressors when building
binary packages. dpkg-deb currently emits warnings, this would turn them
into errors. For lzma it's fine in Debian as the archive has never
accepted them. For bzip2 there are currently 31 source packages that
produce some binary packages using that compressor:

<https://lintian.debian.org/tags/uses-deprecated-compression-for-data-tarball.html>

Unpacking *will* keep being supported for the forseeable future so that
we can examine old binaries, in the same way dpkg-deb still supports
format 0.939000.

I'm attaching the prospective dd-list, and the template bug report. I'd
like do the MBF in 1 or 2 weeks, and turn the warnings into errors in
the first dpkg release after 1 or 2 months from now. I'm easy if people
would like more or less time?

Thanks,
Guillem

"Adam C. Powell, IV" <hazelsct@debian.org>
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Hi!

This source package builds one or more binary packages using the
deprecated compressor bzip2. The default has been xz for a while now
which should usually compress better than bzip2. If instead you'd like
speed then switch to use gzip.

Using a deprecated compressor when building binary packages will
become an error in the near future. Please update the packages.

See also: <link to MBF thread>.

Thanks,
Guillem