From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: Philipp Stephani Newsgroups: gmane.emacs.help Subject: Weird behavior of kill-emacs Date: Wed, 18 Feb 2015 18:58:13 +0000 Message-ID: NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-Trace: ger.gmane.org 1424285920 32760 80.91.229.3 (18 Feb 2015 18:58:40 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 18 Feb 2015 18:58:40 +0000 (UTC) To: "help-gnu-emacs@gnu.org" Original-X-From: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Wed Feb 18 19:58:34 2015 Return-path: Envelope-to: geh-help-gnu-emacs@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YO9pR-0001Yl-I6 for geh-help-gnu-emacs@m.gmane.org; Wed, 18 Feb 2015 19:58:33 +0100 Original-Received: from localhost ([::1]:52277 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YO9pQ-00032P-T6 for geh-help-gnu-emacs@m.gmane.org; Wed, 18 Feb 2015 13:58:32 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:57274) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YO9pF-00032I-1o for help-gnu-emacs@gnu.org; Wed, 18 Feb 2015 13:58:22 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YO9pA-0006Ob-6A for help-gnu-emacs@gnu.org; Wed, 18 Feb 2015 13:58:20 -0500 Original-Received: from mail-lb0-f182.google.com ([209.85.217.182]:44548) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YO9p9-0006O6-VZ for help-gnu-emacs@gnu.org; Wed, 18 Feb 2015 13:58:16 -0500 Original-Received: by lbiz12 with SMTP id z12so3025404lbi.11 for ; Wed, 18 Feb 2015 10:58:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:from:date:message-id:subject:to:content-type; bh=EGjBLLQreVoRZj/CLIHpDYfrgG7CZNxfQRbYZJu56/A=; b=rBPlQbPGcTa1orF3Qn3GHnsAtU3BZrE6vNCn45B+Yld4QzqtgaNaU9vcoJA+UNIRwb ghHIdzpx2o6J1Ar49q9EAB8JbAKmwQIEbv8a4YUjhe75ymXejkERvqR+/738Jz9dp9a1 zOUX5DYRHpwLg5fXrTyIZKV6kp6jgVPyANBT6cM6SjdbLtHQ3EiFEp/8/7kUklhEMwMW tonkGRaQPgR1v19MekIUrpCbXYIOCr3qBfmikRJx8jY4frCbxtDZOrb+PTEXvjNyWg6B skKwp6uhro+xFs4F6OBgR/MoSYqH2HcduvRuD6WfuESV046h6Z9deQC5OUzCOxw+6bTX To5A== X-Received: by 10.152.36.162 with SMTP id r2mr714194laj.9.1424285894326; Wed, 18 Feb 2015 10:58:14 -0800 (PST) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] [fuzzy] X-Received-From: 209.85.217.182 X-Content-Filtered-By: Mailman/MimeDel 2.1.14 X-BeenThere: help-gnu-emacs@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: Users list for the GNU Emacs text editor List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Original-Sender: help-gnu-emacs-bounces+geh-help-gnu-emacs=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.help:102793 Archived-At: Hi, kill-emacs contains the following code ( http://git.savannah.gnu.org/cgit/emacs.git/tree/src/emacs.c#n1899): if (feof (stdin)) arg = Qt; According to git blame this was introduced in commit f927c5aed, the first revision. I suspect this code is responsible for the following somewhat surprising behavior: $ emacs -Q -batch -eval '(kill-emacs 37)' < /dev/null ; echo $? 37 $ emacs -Q -batch -eval '(progn (read) (kill-emacs 37))' < /dev/null ; echo $? Lisp expression: Error reading from stdin 0 So Emacs silently succeeds if it hit EOF of stdin, no matter what the exit code passed to kill-emacs was! This can be a problem for batch jobs that use kill-emacs, e.g. ert-run-tests-batch-and-exit. Is this working as intended? If so, what's the reason? Is there a way to work around this behavior? Thanks, Philipp