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=-9.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 B6A3CCA9ED3 for ; Mon, 4 Nov 2019 21:50:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8C3FA21929 for ; Mon, 4 Nov 2019 21:50:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572904222; bh=NKZrH064zSWHbCkv4ldq9xtQnckfn8tIW6d4IdRtN2M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=boxma03ZaUQzcZC+2V3xNpGy+cMzIhrKfutzLkdOJUSdN0UocyPq+ODkl4UVgIvE7 7MwT1j2MG+sCZAPyUuQ6zn4Uw3L8P9x5fGUnutTzgu7sPON5lXmmpYEOeEiq2/Oq/Q DXZNq9ulzvcGZCh0qAKKGBrVAT+L+IwEsXpiJRao= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387682AbfKDVuV (ORCPT ); Mon, 4 Nov 2019 16:50:21 -0500 Received: from mail.kernel.org ([198.145.29.99]:42316 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387659AbfKDVuS (ORCPT ); Mon, 4 Nov 2019 16:50:18 -0500 Received: from localhost (6.204-14-84.ripe.coltfrance.com [84.14.204.6]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 3A306218BA; Mon, 4 Nov 2019 21:50:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1572904216; bh=NKZrH064zSWHbCkv4ldq9xtQnckfn8tIW6d4IdRtN2M=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HM26WWjzLZOWSbNgoqtfFvvxwkD+sOE/WkwKdrvztY/HqAiZMs7ZK2caJxjPx8qXC LqQaRxEngVGrN7Ue+mVaet+oom9T1YNc6P+a5ujcWhFxqvewzwPdGl/oxBk48iJ8tH RYcqBeY0x2C1MJq153Pf61vE6iaIs4c+eIYpdmxw= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Christian Kujau , Guenter Roeck , Alexander Kapshuk , Brian Norris , Genki Sky , Masahiro Yamada , Sasha Levin Subject: [PATCH 4.9 09/62] scripts/setlocalversion: Improve -dirty check with git-status --no-optional-locks Date: Mon, 4 Nov 2019 22:44:31 +0100 Message-Id: <20191104211911.247873148@linuxfoundation.org> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191104211901.387893698@linuxfoundation.org> References: <20191104211901.387893698@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Brian Norris [ Upstream commit ff64dd4857303dd5550faed9fd598ac90f0f2238 ] git-diff-index does not refresh the index for you, so using it for a "-dirty" check can give misleading results. Commit 6147b1cf19651 ("scripts/setlocalversion: git: Make -dirty check more robust") tried to fix this by switching to git-status, but it overlooked the fact that git-status also writes to the .git directory of the source tree, which is definitely not kosher for an out-of-tree (O=) build. That is getting reverted. Fortunately, git-status now supports avoiding writing to the index via the --no-optional-locks flag, as of git 2.14. It still calculates an up-to-date index, but it avoids writing it out to the .git directory. So, let's retry the solution from commit 6147b1cf19651 using this new flag first, and if it fails, we assume this is an older version of git and just use the old git-diff-index method. It's hairy to get the 'grep -vq' (inverted matching) correct by stashing the output of git-status (you have to be careful about the difference betwen "empty stdin" and "blank line on stdin"), so just pipe the output directly to grep and use a regex that's good enough for both the git-status and git-diff-index version. Cc: Christian Kujau Cc: Guenter Roeck Suggested-by: Alexander Kapshuk Signed-off-by: Brian Norris Tested-by: Genki Sky Signed-off-by: Masahiro Yamada Signed-off-by: Sasha Levin --- scripts/setlocalversion | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/scripts/setlocalversion b/scripts/setlocalversion index 966dd3924ea9c..aa28c3f298093 100755 --- a/scripts/setlocalversion +++ b/scripts/setlocalversion @@ -72,8 +72,16 @@ scm_version() printf -- '-svn%s' "`git svn find-rev $head`" fi - # Check for uncommitted changes - if git diff-index --name-only HEAD | grep -qv "^scripts/package"; then + # Check for uncommitted changes. + # First, with git-status, but --no-optional-locks is only + # supported in git >= 2.14, so fall back to git-diff-index if + # it fails. Note that git-diff-index does not refresh the + # index, so it may give misleading results. See + # git-update-index(1), git-diff-index(1), and git-status(1). + if { + git --no-optional-locks status -uno --porcelain 2>/dev/null || + git diff-index --name-only HEAD + } | grep -qvE '^(.. )?scripts/package'; then printf '%s' -dirty fi -- 2.20.1