From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?UTF-8?Q?Court=C3=A8s?=)
Subject: bug#24361: guix graph backtrace on graphviz help message
Date: Tue, 01 Nov 2016 22:05:23 +0100
Message-ID: <87twbqnc6k.fsf@gnu.org>
References: <20160903220354.GF4019@macbook42.flashner.co.il>
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: quoted-printable
Return-path: <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:58069)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1c1gFz-0001M2-7v
	for bug-guix@gnu.org; Tue, 01 Nov 2016 17:06:08 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1c1gFu-0002BA-93
	for bug-guix@gnu.org; Tue, 01 Nov 2016 17:06:07 -0400
Received: from debbugs.gnu.org ([208.118.235.43]:52305)
	by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16)
	(Exim 4.71) (envelope-from <Debian-debbugs@debbugs.gnu.org>)
	id 1c1gFu-0002Aw-6S
	for bug-guix@gnu.org; Tue, 01 Nov 2016 17:06:02 -0400
Received: from Debian-debbugs by debbugs.gnu.org with local (Exim 4.84_2)
	(envelope-from <Debian-debbugs@debbugs.gnu.org>) id 1c1gFt-0005Wq-Vy
	for bug-guix@gnu.org; Tue, 01 Nov 2016 17:06:01 -0400
Sender: "Debbugs-submit" <debbugs-submit-bounces@debbugs.gnu.org>
Resent-To: bug-guix@gnu.org
Resent-Message-ID: <handler.24361.D24361.147803433821215.done@debbugs.gnu.org>
In-Reply-To: <20160903220354.GF4019@macbook42.flashner.co.il> (Efraim
	Flashner's message of "Sun, 4 Sep 2016 01:03:54 +0300")
List-Id: Bug reports for GNU Guix <bug-guix.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/bug-guix/>
List-Post: <mailto:bug-guix@gnu.org>
List-Help: <mailto:bug-guix-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/bug-guix>,
	<mailto:bug-guix-request@gnu.org?subject=subscribe>
Errors-To: bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org
Sender: "bug-Guix" <bug-guix-bounces+gcggb-bug-guix=m.gmane.org@gnu.org>
To: Efraim Flashner <efraim@flashner.co.il>
Cc: 24361-done@debbugs.gnu.org

Efraim Flashner <efraim@flashner.co.il> skribis:

> efraim@macbook42:~$ time guix graph -t bag pbzip2 | dot -tpdf > pbzip2.pdf

[...]

> guix graph: error: scm_flush: Broken pipe

Hi Efraim!  It=E2=80=99s a feature, not a bug: =E2=80=98guix graph=E2=80=99=
 wasn=E2=80=99t able to write
everything to standard output, so it errors out.

There are other cases where it=E2=80=99s best to silently ignore that (=E2=
=80=98guix
package -A=E2=80=99 does that for instance), but this is not one of them IM=
O.

Ludo=E2=80=99.