Hi Andreas

Thanks for the report.

/ Ola

Sent from a phone

Den 15 okt 2016 13:33 skrev "Andreas Beckmann" <a...@debian.org>:

> Package: tigervnc-viewer
> Version: 1.6.0+dfsg-2
> Severity: important
> User: debian...@lists.debian.org
> Usertags: piuparts
>
> Hi,
>
> during a test with piuparts I noticed your package left unowned files on
> the system after purge, which is a violation of policy 6.8:
>
> https://www.debian.org/doc/debian-policy/ch-maintainerscripts.html#s-
> removedetails
>
> The leftover files are actually alternatives that were installed by the
> package but have not been properly removed.
>
> While there is ongoing discussion how to remove alternatives correctly
> (see https://bugs.debian.org/71621 for details) the following strategy
> should work for regular cases:
> * 'postinst configure' always installs the alternative
> * 'prerm remove' removes the alternative
> * 'postrm remove' and 'postrm disappear' remove the alternative
> In all other cases a maintainer script is invoked (e.g. upgrade,
> deconfigure) the alternatives are not modified to preserve user
> configuration.
> Removing the alternative in 'prerm remove' avoids having a dangling link
> once the actual file gets removed, but 'prerm remove' is not called in
> all cases (e.g. unpacked but not configured packages or disappearing
> packages) so the postrm must remove the alternative again
> (update-alternatives gracefully handles removal of non-existing
> alternatives).
>
> Note that the arguments for adding and removing alternatives differ, for
> removal it's 'update-alternatives --remove <name> <path>'.
>
> Filing this as important as having a piuparts clean archive is a release
> goal since lenny.
>
> >From the attached log (scroll to the bottom...):
>
> 0m27.9s INFO: Warning: Package purging left files on system:
>   /etc/alternatives/vncviewer -> /usr/bin/xtigervncviewer        not owned
>   /etc/alternatives/vncviewer.1.gz -> /usr/share/man/man1/xtigervncviewer.1.gz
>  not owned
>   /etc/alternatives/xvncviewer -> /usr/bin/xtigervncviewer       not owned
>   /etc/alternatives/xvncviewer.1.gz -> 
> /usr/share/man/man1/xtigervncviewer.1.gz
> not owned
>   /usr/bin/vncviewer -> /etc/alternatives/vncviewer      not owned
>   /usr/bin/xvncviewer -> /etc/alternatives/xvncviewer    not owned
>   /usr/share/man/man1/vncviewer.1.gz -> /etc/alternatives/vncviewer.1.gz
>        not owned
>   /usr/share/man/man1/xvncviewer.1.gz -> /etc/alternatives/xvncviewer.1.gz
>      not owned
>
>
> cheers,
>
> Andreas
>
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