Re: [PATCH] services: dovecot: Fix unix_listeners and fifo_listeners path types.

["Clément Lassieur" <clement@lassieur.org>]

Clément Lassieur <clement@lassieur.org> writes:

> Andy Wingo <wingo@igalia.com> writes:
>
>> On Sun 26 Feb 2017 20:42, Clément Lassieur <clement@lassieur.org> writes:
>>
>>> * gnu/services/mail.scm (unix-listener-configuration)[path]
>>>   (fifo-listener-configuration)[path]: Change type from 'file-name' to 'string'.
>>> * doc/guix.texi (Mail Services): Document it.
>>
>> Why's that?  Is the extra checking from the file-name type (that the
>> string start with "/") getting in the way of something?
>
> Yes, because the path is also used as the section name (see
> http://wiki2.dovecot.org/Services#Service_listeners).
>
> So for example, this code (from gnu/services/mail.scm:445) raises an
> error because "lmtp" doesn't start with "/":
>
> (service-configuration
>  (kind "lmtp")
>  (listeners
>   (list (unix-listener-configuration (path "lmtp") (mode "0666")))))
>
> I don't understand how it could work before.  Maybe the check wasn't
> done.

Well, maybe here "lmtp" is not the section name, but the path, relative
to "base_dir".  Sould I update the documentation to specify that "path"
may be relative to "base_dir" too?

But anyway there's still the bug, because relative paths don't start
with "/".