From patchwork Sat Dec 24 15:51:38 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Masahiro Yamada X-Patchwork-Id: 13081382 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4D4D4C4167B for ; Sat, 24 Dec 2022 15:51:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230510AbiLXPvs (ORCPT ); Sat, 24 Dec 2022 10:51:48 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44626 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231205AbiLXPvr (ORCPT ); Sat, 24 Dec 2022 10:51:47 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 463ACB4A4; Sat, 24 Dec 2022 07:51:46 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id D2E1E60AB3; Sat, 24 Dec 2022 15:51:45 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id CBA8FC433F1; Sat, 24 Dec 2022 15:51:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1671897105; bh=yg//8hD31XxiPCoRTUQMtdjbNNcNmuW0h+F67eoF5Vk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ow41Lbuwc2FXdptY6AZ12z+BryyyBJC8Y5LrrrRihCwZGr/MC3fwQs7gwCEzY1vo1 b0bHIoipBUMTXHlqf2QTQeiyEbsru/oy1VFfHm3lVNwgf3pwCh3DjhyzX+Xd9ItS7N 4o6/Oy+pfI9NcUvwTART4udJqHGR004SMlED8kQL4kjtVLDZdyYkJSTo+08XRTwWqb qUYxTGnjpfunoG1DdhISAXdsTcWDxXlnDK4g2ai9tF+embm2bf9r+UOoI1KCn1ppo5 9fzbIlArpJeEPuQ8gOz0SNPdyJPcEloJNsnnTPbikCA/quMMVHI0HiDmvimHA0N1os kkire3ci1fCLg== From: Masahiro Yamada To: linux-kbuild@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Masahiro Yamada , Nathan Chancellor , Nick Desaulniers , Nicolas Schier Subject: [PATCH v2 2/2] kbuild: make W=1 warn files that are tracked but ignored by git Date: Sun, 25 Dec 2022 00:51:38 +0900 Message-Id: <20221224155138.447912-2-masahiroy@kernel.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20221224155138.447912-1-masahiroy@kernel.org> References: <20221224155138.447912-1-masahiroy@kernel.org> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kbuild@vger.kernel.org The top .gitignore comments about how to detect files breaking .gitignore rules, but people rarely care about it. Add a new W=1 warning to detect files that are tracked but ignored by git. If git is not installed or the source tree is not tracked by git at all, this script does not print anything. Running it on the v6.1 kernel detected the following: $ make W=1 misc-check Documentation/devicetree/bindings/.yamllint: warning: ignored by one of the .gitignore files drivers/clk/.kunitconfig: warning: ignored by one of the .gitignore files drivers/gpu/drm/tests/.kunitconfig: warning: ignored by one of the .gitignore files drivers/hid/.kunitconfig: warning: ignored by one of the .gitignore files fs/ext4/.kunitconfig: warning: ignored by one of the .gitignore files fs/fat/.kunitconfig: warning: ignored by one of the .gitignore files kernel/kcsan/.kunitconfig: warning: ignored by one of the .gitignore files lib/kunit/.kunitconfig: warning: ignored by one of the .gitignore files mm/kfence/.kunitconfig: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/.gitignore: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/Makefile: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/run_tags_test.sh: warning: ignored by one of the .gitignore files tools/testing/selftests/arm64/tags/tags_test.c: warning: ignored by one of the .gitignore files These are ignored by the '.*' or 'tags' in the top .gitignore, but there is no rule to negate it. You might be tempted to do 'git add -f' but I want to have the real issue fixed (by fixing a .gitignore, or by renaming files, etc.). Signed-off-by: Masahiro Yamada Reviewed-by: Nathan Chancellor Reviewed-by: Nicolas Schier --- Changes in v2: - Add $(srctree)/ to make it work with O= Makefile | 6 ++++++ scripts/misc-check | 19 +++++++++++++++++++ 2 files changed, 25 insertions(+) create mode 100755 scripts/misc-check diff --git a/Makefile b/Makefile index 44239352d2bf..f6ff8f77a669 100644 --- a/Makefile +++ b/Makefile @@ -1852,6 +1852,12 @@ rust-analyzer: # Misc # --------------------------------------------------------------------------- +PHONY += misc-check +misc-check: + $(Q)$(srctree)/scripts/misc-check + +all: misc-check + PHONY += scripts_gdb scripts_gdb: prepare0 $(Q)$(MAKE) $(build)=scripts/gdb diff --git a/scripts/misc-check b/scripts/misc-check new file mode 100755 index 000000000000..bf68712d1ac1 --- /dev/null +++ b/scripts/misc-check @@ -0,0 +1,19 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0-only + +set -e + +# Detect files that are tracked but ignored by git. This is checked only when +# ${KBUILD_EXTRA_WARN} contains 1, git is installed, and the source tree is +# tracked by git. +check_tracked_ignored_files () { + case "${KBUILD_EXTRA_WARN}" in + *1*) ;; + *) return;; + esac + + git ls-files -i -c --exclude-per-directory=.gitignore 2>/dev/null | + sed 's/$/: warning: ignored by one of the .gitignore files/' >&2 +} + +check_tracked_ignored_files