From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS53758 23.128.96.0/24 X-Spam-Status: No, score=-3.7 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE, SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by dcvr.yhbt.net (Postfix) with ESMTP id AA7191F8C6 for ; Fri, 16 Jul 2021 05:22:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234195AbhGPFZm (ORCPT ); Fri, 16 Jul 2021 01:25:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:58556 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234125AbhGPFZi (ORCPT ); Fri, 16 Jul 2021 01:25:38 -0400 Received: from mail-wr1-x436.google.com (mail-wr1-x436.google.com [IPv6:2a00:1450:4864:20::436]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id CDBAAC061760 for ; Thu, 15 Jul 2021 22:22:43 -0700 (PDT) Received: by mail-wr1-x436.google.com with SMTP id d12so10544324wre.13 for ; Thu, 15 Jul 2021 22:22:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=message-id:in-reply-to:references:from:date:subject:fcc :content-transfer-encoding:mime-version:to:cc; bh=O18rVwHaBqtlPLP6Pdo7VhX7/XvD51eODUz8g95rd0o=; b=U9H/PHpoijDKwzqdarCKuNni/gxtVcv8VSQfnb4C5F73yEYoM78u9rhISPPF1UBX1J Ebetzket0y0iv/ELOLluuuDAZUVq47gd/5c/xbEDfEZI9QC9jDOFQf5xltmZSunMEphm b4EvhjzbKemkyjk8vY++qrD2Bx+mgmNwKxYqyblwo3xW7S8a7pEYNos38MsSAscHl/Wf BZg1Ctlcie0TL8BHGD+FirCnoF6uROMoF5Tky3oIk0NHMjc+HEM0JnKR+I9L4y6UAN32 qrtFqQUwv0ehiqe+/obX803KoCmtCxcOsDk9rsJORRnCKK1QwE7+Bj9Asj1YxQCh/nJw gLvA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:message-id:in-reply-to:references:from:date :subject:fcc:content-transfer-encoding:mime-version:to:cc; bh=O18rVwHaBqtlPLP6Pdo7VhX7/XvD51eODUz8g95rd0o=; b=A6eoOUVpKiUHsItx+KFi67RABfmMZVTjmbzATNZfvkgh1NxheaKUf+/OfaFsNjgDEg nUagQsBtGYjTuj9ltRswXtLPSJJwtR5JysdlkyppqOSGMaJTwaiUzD4YhXABOc7FywWw ZwEMYlZ4JRT/2MEzNu8vhlsu+TZg4k3EUZ9EvHVhqMUehyzlRWO6ocEgWv4Rv85UHqfv q08L8uhnvKbPMs5lZkVHKMWJJLI8pj+u/ZbaUEvOtawgoyQbSqH/UO2Lz+LxLjur/H9B ldkA7GCPsCRb0gTS3eqrLMRfmkiNGM7LKmI7uDUYvgEhjEWzLsO88nkJiB1Wvtdc1vfr 7MyQ== X-Gm-Message-State: AOAM533Yr6P7qAUV3RyOTiLVlTa0Sy/+7gQ1FK0OhgMNhL2fQOapo65o vS9lHKVJ+S/dhVeEB0Uor9ajGCsrRS0= X-Google-Smtp-Source: ABdhPJylZG22UjOaJRZYAX7Jg8nRRyZJNQd5UCL0QWOVzI5lR5vPB2d66NJHnTIdMhiqV3PXNbtolQ== X-Received: by 2002:a5d:52d0:: with SMTP id r16mr9801911wrv.323.1626412962506; Thu, 15 Jul 2021 22:22:42 -0700 (PDT) Received: from [127.0.0.1] ([13.74.141.28]) by smtp.gmail.com with ESMTPSA id s24sm9767345wra.33.2021.07.15.22.22.42 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 15 Jul 2021 22:22:42 -0700 (PDT) Message-Id: <79c5153682980f8657b3fdc7bb85cbe5ea816398.1626412958.git.gitgitgadget@gmail.com> In-Reply-To: References: From: "Elijah Newren via GitGitGadget" Date: Fri, 16 Jul 2021 05:22:35 +0000 Subject: [PATCH v3 5/7] merge-ort: defer recursing into directories when merge base is matched Fcc: Sent Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit MIME-Version: 1.0 To: git@vger.kernel.org Cc: Derrick Stolee , =?UTF-8?Q?=C3=86var_Arnfj=C3=B6r=C3=B0?= Bjarmason , Elijah Newren , Bagas Sanjaya , Elijah Newren , Elijah Newren Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Elijah Newren When one side of history matches the merge base (including when the merge base has no entry for the given directory), have collect_merge_info_callback() defer recursing into the directory. To ensure those entries are eventually handled, add a call to handled_deferred_entries() in collect_merge_info() after traverse_trees() returns. Note that the condition in collect_merge_info_callback() may look more complicated than necessary at first glance; renames->trivial_merges_okay[side] is always true until handle_deferred_entries() is called, and possible_trivial_merges[side] is always empty right now (and in the future won't be filled until handle_deferred_entries() is called). However, when handle_deferred_entries() calls traverse_trees() for the relevant deferred directories, those traverse_trees() calls will once again end up in collect_merge_info_callback() for all the entries under those subdirectories. The extra conditions are there for such deferred cases and will be used more as we do more with those variables. Signed-off-by: Elijah Newren --- merge-ort.c | 33 +++++++++++++++++++++++++++++++-- 1 file changed, 31 insertions(+), 2 deletions(-) diff --git a/merge-ort.c b/merge-ort.c index f0a07684df6..dbccf8c62e2 100644 --- a/merge-ort.c +++ b/merge-ort.c @@ -1147,8 +1147,36 @@ static int collect_merge_info_callback(int n, struct tree_desc t[3]; void *buf[3] = {NULL, NULL, NULL}; const char *original_dir_name; - int i, ret; + int i, ret, side; + /* + * Check for whether we can avoid recursing due to one side + * matching the merge base. The side that does NOT match is + * the one that might have a rename destination we need. + */ + assert(!side1_matches_mbase || !side2_matches_mbase); + side = side1_matches_mbase ? MERGE_SIDE2 : + side2_matches_mbase ? MERGE_SIDE1 : MERGE_BASE; + if (filemask == 0 && (dirmask == 2 || dirmask == 4)) { + /* + * Also defer recursing into new directories; set up a + * few variables to let us do so. + */ + ci->match_mask = (7 - dirmask); + side = dirmask / 2; + } + if (renames->dir_rename_mask != 0x07 && + side != MERGE_BASE && + renames->deferred[side].trivial_merges_okay && + !strset_contains(&renames->deferred[side].target_dirs, + pi.string)) { + strintmap_set(&renames->deferred[side].possible_trivial_merges, + pi.string, renames->dir_rename_mask); + renames->dir_rename_mask = prev_dir_rename_mask; + return mask; + } + + /* We need to recurse */ ci->match_mask &= filemask; newinfo = *info; newinfo.prev = info; @@ -1202,7 +1230,6 @@ static int collect_merge_info_callback(int n, return mask; } -MAYBE_UNUSED static int handle_deferred_entries(struct merge_options *opt, struct traverse_info *info) { @@ -1291,6 +1318,8 @@ static int collect_merge_info(struct merge_options *opt, trace2_region_enter("merge", "traverse_trees", opt->repo); ret = traverse_trees(NULL, 3, t, &info); + if (ret == 0) + ret = handle_deferred_entries(opt, &info); trace2_region_leave("merge", "traverse_trees", opt->repo); return ret; -- gitgitgadget