[bug#29483] [PATCH] services: Add openntpd service.

[Efraim Flashner]

On Fri, Mar 02, 2018 at 05:46:30PM +0100, Ludovic Courtès wrote:
> Hello,
> 
> Efraim Flashner <address@hidden> skribis:
> 
> > On Mon, Feb 05, 2018 at 04:26:52PM +0100, Ludovic Courtès wrote:
> >> Heya Efraim,
> >> 
> >> > +(define openntpd-shepherd-service
> >> > +  (match-lambda
> >> > +    (($ <openntpd-configuration> openntpd openntpd-listen-on
> >> > +        openntpd-query-from openntpd-sensor openntpd-server
> >> > +        openntpd-servers openntpd-constraint-from
> >> > +        openntpd-constraints-from allow-large-adjustment?)
> >> 
> >> This is error prone (you could be matching the wrong fields), could you
> >> change that to ‘match-record’?
> >> 
> >
> > I think this is the only thing left over.
> 
> To be clear, the switch from ‘match-lambda’ to ‘match-record’ should be
> entirely mechanical.  The above snippet would become:
> 
>   (define (openntpd-shepherd-service config)
>     (match-record config <openntpd-configuration>
>       (openntpd openntpd-listen-on
>        openntpd-query-from openntpd-sensor openntpd-server
>        openntpd-servers openntpd-constraint-from
>        openntpd-constraints-from allow-large-adjustment?)
>       …))
> 
> That’s all I was suggesting.  The body of that procedure can remain
> unchanged.
> 
> Does that make sense?
> 

Yes, that does make sense. Switching helped me find that I mistakenly
used openntpd-<var> when it should've just been <var>, so I've fixed
that. I've also added a default value field, like the ones that were
recently added for the SQL services, and I tested that it worked with
(service openntpd-service-type) in my test config.

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0001-services-Add-openntpd-service.patch
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