Re: Dovecot + pigeonhole packaging

["Gábor Boskovits" <boskovits@gmail.com>]

Hello Alexey,

Alexey Abramov <levenson@mmer.org> ezt írta (időpont: 2019. aug. 28., Sze,
22:30):

> Hi guix,
>
>
> My system requires me to have dovecot and pigeonhole. So I packaged it. I
> created two none public packages and merged them into one big package.
>

Is this on Guix System?
If yes, then guix system has a dovecot-service:
https://guix.gnu.org/manual/en/html_node/Mail-Services.html
maybe you could have a look at that, and see if it helps.


>
> But wouldn't it be better to do it the same way as debian does?Every
> component lives in a separate package, and if I need some library I don't
> have to install the giant package.
>

In guix packages can be split to multiple outputs. You can also define
separate packages,
but these are less common. Would multiple outputs make sense in this case?
https://guix.gnu.org/manual/en/html_node/Packages-with-Multiple-Outputs.html


>
>
> The problem I encountered is that dovecot has mail_plugin_dir property
> which does not accept multiple folders. It means I have to put and install
> new plugins in the very same directory with existing plugins. rpath is not
> an option here. Even if a library knows where to load its dependencies,
> dovecot doesn't aware of it.
>
>
> Is there a way to have shared store folder? Debian overrides  rpath to all
> dovecot extensions and set it to /usr/dovecot/lib.
>

If dovecot follows symlinks on plugin resoltuion, then the service
configuration
could be extended by a plugins keyword, like it was for postgresql
extensions,
that sets up a symlink is a well known location to the store item of the
package
providing the plugin.


>
> Or maybe create a dummy package and use it as a storage for the libraries?
> What is the right approach here?
>
>
> I also checked how nixos does it, and I don't like this approach, they
> patch source code and install their libs in /etc
>
>
> --
> Alexey
>
>
>
>
Best regards,
g_bor

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