From mboxrd@z Thu Jan  1 00:00:00 1970
From: Vincent Legoll <vincent.legoll@gmail.com>
Subject: Re: Proxy settings wrt guix daemon
Date: Sat, 4 Apr 2020 00:29:10 +0200
Message-ID: <CAEwRq=pNqK+cE+Vq6DxPgT9FCg=4kmsno5D8vSfjM7Fsg5FZLA@mail.gmail.com>
References: <CAEwRq=p-DQgHcmPRb9mYXTJ-WXy7NQVJStuKE_=7jGrgauqMNw@mail.gmail.com>
 <87blofyzn0.fsf@gnu.org>
 <CAEwRq=rcXmB31Hrrn_iDGO1t+AeOpZiPQ7qzWnyB0j4qC+UgUQ@mail.gmail.com>
 <87eet8v948.fsf@gnu.org>
Mime-Version: 1.0
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Return-path: <guix-devel-bounces+gcggd-guix-devel=m.gmane-mx.org@gnu.org>
Received: from eggs.gnu.org ([2001:470:142:3::10]:46887)
 by lists.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <vincent.legoll@gmail.com>) id 1jKUof-0006aq-P2
 for guix-devel@gnu.org; Fri, 03 Apr 2020 18:29:37 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
 (envelope-from <vincent.legoll@gmail.com>) id 1jKUod-0006bH-LP
 for guix-devel@gnu.org; Fri, 03 Apr 2020 18:29:33 -0400
In-Reply-To: <87eet8v948.fsf@gnu.org>
List-Id: "Development of GNU Guix and the GNU System distribution."
 <guix-devel.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/guix-devel>,
 <mailto:guix-devel-request@gnu.org?subject=unsubscribe>
List-Archive: <https://lists.gnu.org/archive/html/guix-devel>
List-Post: <mailto:guix-devel@gnu.org>
List-Help: <mailto:guix-devel-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/guix-devel>,
 <mailto:guix-devel-request@gnu.org?subject=subscribe>
Errors-To: guix-devel-bounces+gcggd-guix-devel=m.gmane-mx.org@gnu.org
Sender: "Guix-devel"
 <guix-devel-bounces+gcggd-guix-devel=m.gmane-mx.org@gnu.org>
To: =?UTF-8?Q?Ludovic_Court=C3=A8s?= <ludo@gnu.org>
Cc: guix-devel <guix-devel@gnu.org>

Hello,

thanks for the help, but...

On Tue, Mar 31, 2020 at 5:26 PM Ludovic Court=C3=A8s <ludo@gnu.org> wrote:
> I was proposing a custom action for the Shepherd service, just like the
> mcron Shepherd service has a custom =E2=80=98schedule=E2=80=99 action tha=
t one can
> invoke with =E2=80=9Cherd schedule mcron=E2=80=9D.
>
> Hope that=E2=80=99s clearer!

I've found the shepherd-schedule-action code, but that does not tell me
how to implement the whole thing.

Let me try harder, the following are all questions.
I do not know if they make any sense at all...

How do I make the running daemon use a proxy ?
By doing setenv() calls in builtins.cc builtinDownload()
before the execv(guix perform-download) ?

How do I make the running daemon know which proxy to use ?
By getting it from the settings object from globals.hh ?

How do I make the running daemon change the value stored
in the settings object ?
By sending it an order to do so via the listening socket ?

What will send this order through that socket ?
Another, one-shot, ephemeral, guix-daemon process with
the --set-proxy command-line option ?

What is the UI to run that guix-daemon --set-proxy ?
Use herd set-proxy guix-daemon "https://proxy:3128" ?
(Like what is done for mcron)

I really need a few "make this thing here do that" hints...

And then also a bit of a hint on how I would test the
modifications without risking my running system.

I hope that's not too demanding...

Thanks

--=20
Vincent Legoll