From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: string-append plus package
Date: Tue, 03 Jan 2017 00:10:49 +0100
Message-ID: <878tqt6osm.fsf@gnu.org>
References: <d7fabec3-9f43-e315-2ede-680a12c7ba59@crazy-compilers.com>
	<20161208195647.GA23449@jasmine>
	<d74b030d-d74d-3ece-f30e-13e2a557a972@crazy-compilers.com>
	<87h9608d3l.fsf@gnu.org>
	<3f930a82-663f-17ed-466c-d3bd021023d8@crazy-compilers.com>
	<87wpeh6l1u.fsf@gnu.org>
	<9a3f6d70-e24f-2273-4599-94ef0cb05763@crazy-compilers.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <help-guix-bounces+gcggh-help-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:60090)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1cOBkl-0000QW-JU
	for help-guix@gnu.org; Mon, 02 Jan 2017 18:10:56 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <ludo@gnu.org>) id 1cOBki-0005ra-DI
	for help-guix@gnu.org; Mon, 02 Jan 2017 18:10:55 -0500
In-Reply-To: <9a3f6d70-e24f-2273-4599-94ef0cb05763@crazy-compilers.com>
	(Hartmut Goebel's message of "Sat, 31 Dec 2016 13:56:23 +0100")
List-Id: <help-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/help-guix>,
	<mailto:help-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/help-guix/>
List-Post: <mailto:help-guix@gnu.org>
List-Help: <mailto:help-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/help-guix>,
	<mailto:help-guix-request@gnu.org?subject=subscribe>
Errors-To: help-guix-bounces+gcggh-help-guix=m.gmane.org@gnu.org
Sender: "Help-Guix" <help-guix-bounces+gcggh-help-guix=m.gmane.org@gnu.org>
To: Hartmut Goebel <h.goebel@crazy-compilers.com>
Cc: help-guix@gnu.org

Hartmut Goebel <h.goebel@crazy-compilers.com> skribis:

> Am 31.12.2016 um 00:42 schrieb Ludovic Court=C3=A8s:
>> Where does that string you want to build go to?
>
> As I already wrote in my initial mail, I need to reference the actual
> package output's path in some config-file within a system definition
> (e.g. gnu/system/examples/nginx.tmpl).
>
> So assume gnu/system/examples/nginx.tmpl to be:
>
> (use-modules (gnu))
> (use-package-modules networking web)
> (define NGINX (package-output (open-connection) nginx))
> (define TEST (string-append NGINX "/bin/nginxctl"))
>
> If "package-output" is not the correct solution, please tell me the
> correct one.

I think the discussion drifted a bit.  Your initial message mentioned
this use case:

        (nginx-service #:vhost-list
          (list (nginx-vhost-configuration=20=20=20=20=20
                 (root (string-append nginx "/share/nginx/html"))
                 (https-port #f)
                 (ssl-certificate #f)
                 (ssl-certificate-key #f))))

I explained back in November what I think should be done to fix this (as
in: allow you to write (file-append nginx "/share/nginx/html") above):

  https://lists.gnu.org/archive/html/guix-devel/2016-11/msg00161.html

Julien submitted a patch just before the holidays that nobody has taken
the time to review yet.  I=E2=80=99ll see if I can look at it tomorrow, but=
 help
is always welcome!

Ludo=E2=80=99.