From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.3 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81F6BC43461 for ; Mon, 14 Sep 2020 07:14:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 4682F217BA for ; Mon, 14 Sep 2020 07:14:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726109AbgINHON (ORCPT ); Mon, 14 Sep 2020 03:14:13 -0400 Received: from mail3-relais-sop.national.inria.fr ([192.134.164.104]:53394 "EHLO mail3-relais-sop.national.inria.fr" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726063AbgINHOL (ORCPT ); Mon, 14 Sep 2020 03:14:11 -0400 X-IronPort-AV: E=Sophos;i="5.76,359,1592863200"; d="scan'208";a="358868903" Received: from abo-173-121-68.mrs.modulonet.fr (HELO hadrien) ([85.68.121.173]) by mail3-relais-sop.national.inria.fr with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Sep 2020 09:14:10 +0200 Date: Mon, 14 Sep 2020 09:14:09 +0200 (CEST) From: Julia Lawall X-X-Sender: jll@hadrien To: Markus Elfring cc: Sumera Priyadarsini , Coccinelle , Masahiro Yamada , Michal Marek , Gilles Muller , Nicolas Palix , kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [Cocci] [RFC PATCH] scripts: coccicheck: Improve error feedback when coccicheck fails In-Reply-To: <287a8c82-6359-9a7e-c2ca-d26aa5be9650@web.de> Message-ID: References: <44ab7442-1473-f267-4487-af98631a9338@web.de> <287a8c82-6359-9a7e-c2ca-d26aa5be9650@web.de> User-Agent: Alpine 2.22 (DEB 394 2020-01-19) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 14 Sep 2020, Markus Elfring wrote: > >> How do you think about to use the following check variant? > >> > >> + if [ "${DEBUG_FILE}" != '/dev/null' -a "${DEBUG_FILE}" != '' ]; then > > > > What difference does it make? > > I propose two implementation details for further development considerations. > > 1. Do you care if any variable names should be enclosed by curly brackets > in such script code? > > 2. A changeable value should be compared to two string literals here. > Varying contents should be enclosed by double quotes. > Constant values can be enclosed by single quotes, can't they? I have no idea. Why can't they be nclosed by double quotes as well? julia