From mboxrd@z Thu Jan  1 00:00:00 1970
From: Ricardo Wurmus <rekado@elephly.net>
Subject: wrap-program =?utf-8?Q?=E2=80=93=3E?= wrap-script
Date: Wed, 11 Dec 2019 16:57:41 +0100
Message-ID: <87h8263le2.fsf@elephly.net>
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.org@gnu.org>
Received: from eggs.gnu.org ([2001:470:142:3::10]:52461)
 by lists.gnu.org with esmtp (Exim 4.90_1)
 (envelope-from <rekado@elephly.net>) id 1if4N5-0004W4-8O
 for guix-devel@gnu.org; Wed, 11 Dec 2019 10:57:52 -0500
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
 (envelope-from <rekado@elephly.net>) id 1if4N4-0002pd-2X
 for guix-devel@gnu.org; Wed, 11 Dec 2019 10:57:51 -0500
Received: from sender4-of-o51.zoho.com ([136.143.188.51]:21168)
 by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32)
 (Exim 4.71) (envelope-from <rekado@elephly.net>) id 1if4N3-0002mm-Ko
 for guix-devel@gnu.org; Wed, 11 Dec 2019 10:57:50 -0500
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.org@gnu.org
Sender: "Guix-devel" <guix-devel-bounces+gcggd-guix-devel=m.gmane.org@gnu.org>
To: guix-devel@gnu.org

Hi Guix,

I=E2=80=99ve just pushed a change to use wrap-script in one package.  The
purpose of wrap-script is to wrap an executable without having to create
a separate wrapper shell script.  It does this by prepending a Guile
script to the top of the file, which sets the environment variables and
then re-executes itself with the target interpreter (e.g. Python).

I noticed two things:

1) wrap-script does not automatically pull in Guile as a dependency, so
if Guile isn=E2=80=99t among the inputs it will create a bad shebang.  This
should be fixed on core-updates.

2) we aren=E2=80=99t using wrap-script anywhere.  I think a good use case w=
ould
be the Python build system=E2=80=99s =E2=80=9Cwrap=E2=80=9D phase where we =
currently use
wrap-program.  Most of the time we=E2=80=99d be dealing with Python scripts=
, so
using wrap-script would be more appropriate here.

What do you think?

--
Ricardo