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Bug#910207: marked as done (linux-headers-4.18.0-*: unhandled symlink to directory conversion: /usr/share/doc/PACKAGE)

Your message dated Fri, 05 Oct 2018 18:23:16 +0100
with message-id <4ad425a0ec5aefde7cf97df869f27d5cc252fdb1.camel@decadent.org.uk>
and subject line Re: Bug#910207: linux-headers-4.18.0-*: unhandled symlink to directory conversion: /usr/share/doc/PACKAGE
has caused the Debian Bug report #910207,
regarding linux-headers-4.18.0-*: unhandled symlink to directory conversion: /usr/share/doc/PACKAGE
to be marked as done.

This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.

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-- 
910207: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=910207
Debian Bug Tracking System
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--- Begin Message --- 
Source: linux
Version: 4.18.8-1
Severity: serious
User: debian-qa@lists.debian.org
Usertags: piuparts
Control: affects -1 + linux-headers-4.18.0-1-amd64

Hi,

an upgrade test with piuparts revealed that your package installs files
over existing symlinks and possibly overwrites files owned by other
packages. This usually means an old version of the package shipped a
symlink but that was later replaced by a real (and non-empty)
directory. This kind of overwriting another package's files cannot be
detected by dpkg.

This was observed on the following upgrade paths:


For /usr/share/doc/PACKAGE this may not be problematic as long as both
packages are installed, ship byte-for-byte identical files and are
upgraded in lockstep. But once one of the involved packages gets
removed, the other one will lose its documentation files, too,
including the copyright file, which is a violation of Policy 12.5:
https://www.debian.org/doc/debian-policy/ch-docs.html#copyright-information

For other overwritten locations anything interesting may happen.

Note that dpkg intentionally does not replace directories with symlinks
and vice versa, you need the maintainer scripts to do this.
See in particular the end of point 4 in
https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html#details-of-unpack-phase-of-installation-or-upgrade

It is recommended to use the dpkg-maintscript-helper commands
'dir_to_symlink' and 'symlink_to_dir' (available since dpkg 1.17.14)
to perform the conversion, ideally using d/$PACKAGE.maintscript.
Do not forget to add 'Pre-Depends: ${misc:Pre-Depends}' in d/control.
See dpkg-maintscript-helper(1) and dh_installdeb(1) for details.


>From the attached log (scroll to the bottom...):

0m31.8s ERROR: FAIL: silently overwrites files via directory symlinks:
  /usr/share/doc/linux-headers-4.18.0-1-amd64/changelog.Debian.gz (linux-headers-4.18.0-1-amd64) != /usr/share/doc/linux-headers-4.18.0-1-common/changelog.Debian.gz (linux-headers-4.18.0-1-common)
    /usr/share/doc/linux-headers-4.18.0-1-amd64 -> linux-headers-4.18.0-1-common
  /usr/share/doc/linux-headers-4.18.0-1-amd64/copyright (linux-headers-4.18.0-1-amd64) != /usr/share/doc/linux-headers-4.18.0-1-common/copyright (linux-headers-4.18.0-1-common)
    /usr/share/doc/linux-headers-4.18.0-1-amd64 -> linux-headers-4.18.0-1-common

This seems to happen in all linux-headers-VERSION-ABI-FLAVOR packages.

(This will probably resolve automatically with the next ABI bump.)


cheers,

Andreas

Attachment: linux-headers-4.18.0-1-amd64_4.18.8-1.log.gz
Description: application/gzip


--- End Message ---
--- Begin Message --- 
Version: 4.18.10-1

On Wed, 2018-10-03 at 16:46 +0200, Andreas Beckmann wrote:
[...]
> (This will probably resolve automatically with the next ABI bump.)

Which has already happened, so closing this.

Ben.

-- 
Ben Hutchings
The most exhausting thing in life is being insincere.
                                                 - Anne Morrow Lindberg

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