Bug#968268: debian-edu-config: wakeupclients script fail because SiteSummary.pm is missing

[Mike Gabriel <mike.gabriel@das-netzwerkteam.de>]

Hi Petter,

On  Mi 12 Aug 2020 09:20:40 CEST, Petter Reinholdtsen wrote:

> Package: debian-edu-config
> Version: 2.10.65+deb10u6
> Severity: normal
>
> There is an issue with how three Debian Edu packages interact.  It
> involves debian-edu-config, sitesummary and shutdown-at-night.
>
> After setting up outgoing emails on my laptop, where debian-edu-config
> and shutdown-at-night, but not sitesummary, is installed, I started
> getting cron emails like this:
>
>   Subject: Cron <root@minerva> test -x  
> /usr/lib/shutdown-at-night/wakeupclients &&  
> /usr/lib/shutdown-at-night/wakeupclients
>
>   Can't locate SiteSummary.pm in @INC (you may need to install the
>     SiteSummary module) (@INC contains: /etc/perl
>     /usr/local/lib/x86_64-linux-gnu/perl/5.28.1
>     /usr/local/share/perl/5.28.1 /usr/lib/x86_64-linux-gnu/perl5/5.28
>     /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.28
>     /usr/share/perl/5.28 /usr/local/lib/site_perl
>     /usr/lib/x86_64-linux-gnu/perl-base) at
>     /etc/shutdown-at-night/clients-generator line 7.
>   BEGIN failed--compilation aborted at
>     /etc/shutdown-at-night/clients-generator line 7.
>
> The cause seem to be that the cron job from shutdown-at-night
> (/etc/cron.d/shutdown-at-night) calls the
> /etc/shutdown-at-night/clients-generator script from debian-edu-config,
> which fail to work when SiteSummary.pm from the sitesummary package is
> not available.
>
> I suspect some dependencies need to be adjusted to ensure the perl
> module is available when needed, or the script need to cope with the
> missing module in a better way.

the client-generator script in /etc/shutdown-at-night/ shipped in  
d-e-c requires SiteSummary.pm. So the quick fix would be a dependency  
of debian-edu-config on sitesummary.

However, for your notebook setup this might feel like an overload. My  
approach would be to split out the Perl module SiteSummary.pm into a  
separate bin:pkg within the sitesummary src:pkg and then let d-e-c  
depend on libsitesummary-perl.

Feedback? Too much of a change?

Mike
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