[bug#43347] [PATCH] services: dovecot: Do not require dovecot to be globally installed.

[Alexey Abramov <levenson@mmer.org>]

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Hi,

I see, let me try to fix this.

Alexey
On September 11, 2020 23:03:22 Tobias Geerinckx-Rice via Guix-patches via 
<guix-patches@gnu.org> wrote:

> Pierre,
>
> Thank you very much for the bug report.
>
> On 2020-09-11 21:40, Pierre Langlois wrote:
>> I noticed recently my little dovecot mailserver failed to boot, I
>> tracked it down to our service installing a symlink as:
>>
>> /etc/dovecot/modules -> /run/current-system/profile/lib/dovecot
>>
>> However, I didn't have the dovecot package globally installed, the
>> service does not install it AFAICT.
>
> Sorry, this is my fault.  I've been slowly merging some Dovecot
> improvements[0] into master.
>
> While I'm happily replying from the latest Dovecot service, I run it in
> an... idiosyncratic manner that had me write some glue code to test
> these patches.  I didn't realize that said glue was doing more work than
> I, er, realized.  Too much.
>
>> We could extend the service to install dovecot into the global profile,
>> however instead we can just symlink /etc/dovecot/modules to the dovecot
>> package in the store directly.
>
> Nack.  That just reverts to last week's monolithic Dovecot service that
> doesn't support modules, but now with pointless indirection via /etc.
> Nor should the service add anything to the system profile, or expect the
> user to do so.
>
> The fix is to add a ‘modules’ field to the service configuration that,
> exactly like CUPS's ‘extensions’ field, adds module packages like
> dovecot-pigeonhole to the union directory that /etc/dovecot/modules
> points to.
>
> Kind regards,
>
> T G-R
>
> Sent from a Web browser. Excuse or enjoy my brevity.
>
> [0]: https://issues.guix.gnu.org/42899


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