On 08/22/2012 06:22 PM, Lennart Poettering wrote:
> On Wed, 22.08.12 19:17, Tom Lane (t...@redhat.com) wrote:
>
>>
>> Lennart Poettering <mzerq...@0pointer.de> writes:
>>> On Wed, 22.08.12 09:25, Kevin Fenzi (ke...@scrye.com) wrote:
>>>> I'll add a me too here.
>>>>
>>>> Any word on if the macros can/will be back-ported to f16/f17?
>>
>>> The preset logic is actually already available in F17, so we could
>>> theoretically backport that, but this would mean we'd also have to
>>> create and maintain a preset policy file for F17, and that's the bit I
>>> am not sure i'd like to do.
>>
>>> Without the preset policy the macros would only turn things off after
>>> installation, never on.
>>
>> What I would want to see in F16/F17 is macros that exactly duplicate the
>> previously-standard snippets they are supposed to replace. Nobody is
>> suggesting that the preset stuff ought to go into the released branches;
>> only that we don't want to have to maintain different specfile versions
>> for the different branches. And if these things are macros, we should
>> not have to.
>
> The thing is that previously we had to different snippets, one for
> enabling a service after installation, one for leaving it disabled. With
> the macros there is only one which checks the preset policy whether
> something should be enabled. Hence we can't really map the old logic to
> the new macros, I fear.
I think we can manage this. In the F17 and F16 systemd, provide the same
macros, except:
1) %systemd_post should be redefined as follows:
%systemd_post() \
if [ $1 -eq 1 ] ; then \
# Initial installation \
/bin/systemctl daemon-reload >/dev/null 2>&1 || : \
fi \
%{nil}
2) Create another macro:
%systemd_post_enable() \
if [ $1 -eq 1 ] ; then \
# Initial installation \
/bin/systemctl enable %{?*} >/dev/null 2>&1 || : \
fi \
%{nil}
3) We'll adjust the guidelines like this:
If your service is explicitly enabled by default in Fedora 16 or 17, and
you wish to have a shared spec file, you will need to add a
conditionalized call to the "%systemd_post_enable" macro, as follows:
%post
%if %{defined fc16} || %{defined fc17}
%systemd_post_enable apache-httpd.service
%else
%systemd_post apache-httpd.service
%endif
Thoughts?
~tom
==
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