Correct way of providing uncompressed data.tar
Hi,
in linux-source-3.11, we have an issue due to unclear procedure how to
use uncompressed data.tar files:
http://bugs.debian.org/725492
While lintian rejects packages with data.tar (in contrast to the
compressed data.tar.{...} variants), an uncompressed data.tar.gz that
the kernel is currently using (dpkg-source -Xgzip -z0) triggers problems
in apt-ftparchive.
To implement a correct fix, Ben asked for a decision by dpkg
maintainers, FTP team and policy. Basically, the question is if
uncompressed data.tar is the correct way (for me, this would be the
logical consequence), or rather uncompressed data.tar.gz as linux
currently does, but which isn't actually gzip formatted file, or sth. else.
See also http://bugs.debian.org/718330
Thanks in advance,
Roland
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Re: Correct way of providing uncompressed data.tar
Hi, On Thu, 05 Dec 2013, Roland Stigge wrote: To implement a correct fix, Ben asked for a decision by dpkg maintainers, FTP team and policy. Basically, the question is if I think Guillem's position is rather clear, since he filed #718330 requesting support of data.tar in APT. I also agree with him, data.tar ought to be correctly supported. Guillem also added preliminary support to normalize the compression method in dpkg at build time, see commit 625a24bbc8280362c2ab0e3f2f83aacbf25283e0 and the new fixup_gzip_params(). http://anonscm.debian.org/gitweb/?p=dpkg/dpkg.git;a=commitdiff;h=625a24bbc8280362c2ab0e3f2f83aacbf25283e0 It lacks a call to compressor_fixup_params() in dpkg-deb/build.c to make this effective but the intention is clear. -Zgzip -z0 shall at some point result in a data.tar member. Cheers, -- Raphaël Hertzog ◈ Debian Developer Discover the Debian Administrator's Handbook: → http://debian-handbook.info/get/ -- To UNSUBSCRIBE, email to debian-lint-maint-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: http://lists.debian.org/20131205132750.ga...@x230-buxy.home.ouaza.com
Re: Correct way of providing uncompressed data.tar
Hi!
On Thu, 2013-12-05 at 13:19:57 +0100, Roland Stigge wrote:
in linux-source-3.11, we have an issue due to unclear procedure how to
use uncompressed data.tar files:
http://bugs.debian.org/725492
While lintian rejects packages with data.tar (in contrast to the
compressed data.tar.{...} variants), an uncompressed data.tar.gz that
the kernel is currently using (dpkg-source -Xgzip -z0) triggers problems
in apt-ftparchive.
To implement a correct fix, Ben asked for a decision by dpkg
maintainers, FTP team and policy. Basically, the question is if
uncompressed data.tar is the correct way (for me, this would be the
logical consequence), or rather uncompressed data.tar.gz as linux
currently does, but which isn't actually gzip formatted file, or sth. else.
See also http://bugs.debian.org/718330
I've had a working fix for 718295 since end of July, but I've not
applied it as it would remove a currently used misfeature with no
substitute. As long as the data.tar support in general is so poor [0]
and at least something like linux-source-3.11 uses the uncompressed
tar.gz trick it would seems like a disservice to change it now.
But I do think those .deb packages are bogus, and they break the
assumption that .deb packages can be handled (w/o hacks) by standard
Unix tools (in this case gzip needs a --force option to comply with
the request). Sorry, should have updated my comment on the bug report
clarifying that.
The danger is that not fixing it, means tools might start supporting
the bogusly created packages, but those have existed for a long time
already, so they might need to anyway… Has someone tried recompressing
linux-source-3.11 with something like -Zgzip -z1 as proposed in that
bug report to see how it turns out (space and time-wise), if that
happened to be acceptable, I'd happily push the fix for dpkg 1.17.4.
[0] https://wiki.debian.org/Teams/Dpkg/DebSupport, created after
this was spotted, I'd need to update it now probably.
Thanks,
Guillem
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