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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5930BC433F5 for ; Wed, 23 Mar 2022 09:14:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243205AbiCWJQF (ORCPT ); Wed, 23 Mar 2022 05:16:05 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48006 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243094AbiCWJPc (ORCPT ); Wed, 23 Mar 2022 05:15:32 -0400 Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id ACB3775E56 for ; Wed, 23 Mar 2022 02:14:02 -0700 (PDT) Received: by mail-pl1-x62a.google.com with SMTP id j13so937138plj.8 for ; Wed, 23 Mar 2022 02:14:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=q/biLvqSFiqH9pmRg3/K8Zbz+ot4nD0sdObZwmVy9hE=; b=YZ13tXng5T00ifGKVVrcU8mhY6GfmEJ2HggNTTu58DC67/YaudkRw1jTse+F9awmdY /v2QVO9yprsv0LZajMfXVqf2kjQgOlLRbFhB/nSaXRBlsmbM+95F3o78/3hkOpYY79uo F7XjJwe8byHFG4vdR9SGt7dsXcoHCLGE4WfzL982UrMgdggVUI/l1tJ/yMF9KhCx4er4 vhlbN3zbYlRqvWAhWRfgLh7Rw7lMzLB2TCZRMtERjdaxr8yihSvNM+6uqATuHSXzyF8b w0g33GNWMRRoj56wltnm/fi75Sfy9x4QrqIFW2Va3jX1LQ6GGQRi4HWl4EkabSW1PWe4 KVaQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=q/biLvqSFiqH9pmRg3/K8Zbz+ot4nD0sdObZwmVy9hE=; b=qDNKHOXaAyhHAWv9j4H3eqpHBnj0/MaJL7ZSN5MtOiauF9ZK1sAhD7eP/bdYX6UEmT ARVjrUsLkbv1NdOivHiOYkdyLdHqtUBwVLs9ea8KokbR7owiHqI6/8aB8u89o6MUw0nS z0iZcBEn9Qt8xCrSjW0BmcHRnkwV/lQP737/wKuZqNioKj3QMYtCS0jMUsgVsfui9xN5 YgA/TZqKGD8xpacO3+blI9M9oETLRp5mdiblD1KtTRMDU/JzVDWndQZB6ez/34FY1ceo m7sI3FWX4b96r7+/9pyGy/LtbAMb4ZVqXh77rAEM+xlgQH8VnV9fvNfGQzlBSR446LmV ITBw== X-Gm-Message-State: AOAM531LLuF9fzWcxB+2mZ1nQsfWDVwxxIMrBHtTl+R9ZyrqFZTSfz3P K8dYRmJRuCttQZFS9Ex90aI= X-Google-Smtp-Source: ABdhPJzfclOozFltQ0uQ+E7n5JBdGwdyF7q7VZ0cE/LEN3q/NOMI/PT/5wGE3kU2RtsOvaNZVAytzQ== X-Received: by 2002:a17:902:70cc:b0:154:1cc8:9df8 with SMTP id l12-20020a17090270cc00b001541cc89df8mr22934034plt.32.1648026842093; Wed, 23 Mar 2022 02:14:02 -0700 (PDT) Received: from code-infra-dev-cbj.ea134 ([140.205.70.39]) by smtp.gmail.com with ESMTPSA id s135-20020a63778d000000b0038259e54389sm10224261pgc.19.2022.03.23.02.13.59 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Wed, 23 Mar 2022 02:14:01 -0700 (PDT) From: Teng Long To: dyroneteng@gmail.com Cc: Johannes.Schindelin@gmx.de, avarab@gmail.com, congdanhqx@gmail.com, git@vger.kernel.org, gitster@pobox.com, martin.agren@gmail.com, peff@peff.net, tenglong.tl@alibaba-inc.com Subject: [PATCH v14 15/15] ls-tree: split up "fast path" callbacks Date: Wed, 23 Mar 2022 17:13:15 +0800 Message-Id: <55a96e933b0949bbf3f33153b8e370af6c6299bb.1648026472.git.dyroneteng@gmail.com> X-Mailer: git-send-email 2.34.1.404.g92931a4a2c.dirty In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Ævar Arnfjörð Bjarmason Make the various if/else in the callbacks for the "fast path" a lot easier to read by just using common functions for the parts that are common, and have per-format callbacks for those parts that are different. Signed-off-by: Ævar Arnfjörð Bjarmason Signed-off-by: Teng Long --- builtin/ls-tree.c | 199 +++++++++++++++++++++++++++++----------------- 1 file changed, 125 insertions(+), 74 deletions(-) diff --git a/builtin/ls-tree.c b/builtin/ls-tree.c index 6550f27dfe..44a91cf9d0 100644 --- a/builtin/ls-tree.c +++ b/builtin/ls-tree.c @@ -173,108 +173,157 @@ static int show_tree_fmt(const struct object_id *oid, struct strbuf *base, return recurse; } -static int show_default(struct show_tree_data *data) +static int show_tree_common(struct show_tree_data *data, int *recurse, + const struct object_id *oid, struct strbuf *base, + const char *pathname, unsigned mode) { - size_t baselen = data->base->len; - - if (cmdmode == MODE_LONG) { - char size_text[24]; - if (data->type == OBJ_BLOB) { - unsigned long size; - if (oid_object_info(the_repository, data->oid, &size) == OBJ_BAD) - xsnprintf(size_text, sizeof(size_text), "BAD"); - else - xsnprintf(size_text, sizeof(size_text), - "%" PRIuMAX, (uintmax_t)size); - } else { - xsnprintf(size_text, sizeof(size_text), "-"); - } - printf("%06o %s %s %7s\t", data->mode, type_name(data->type), - find_unique_abbrev(data->oid, abbrev), size_text); - } else { - printf("%06o %s %s\t", data->mode, type_name(data->type), - find_unique_abbrev(data->oid, abbrev)); - } - baselen = data->base->len; - strbuf_addstr(data->base, data->pathname); - write_name_quoted_relative(data->base->buf, - chomp_prefix ? ls_tree_prefix : NULL, stdout, - line_termination); - strbuf_setlen(data->base, baselen); - return 1; -} - -static int show_tree(const struct object_id *oid, struct strbuf *base, - const char *pathname, unsigned mode, void *context) -{ - int recurse = 0; - size_t baselen; enum object_type type = object_type(mode); - struct show_tree_data data = { - .mode = mode, - .type = type, - .oid = oid, - .pathname = pathname, - .base = base, - }; + int ret = -1; + + *recurse = 0; + data->mode = mode; + data->type = type; + data->oid = oid; + data->pathname = pathname; + data->base = base; if (type == OBJ_BLOB) { if (ls_options & LS_TREE_ONLY) - return 0; + ret = 0; } else if (type == OBJ_TREE && show_recursive(base->buf, base->len, pathname)) { - recurse = READ_TREE_RECURSIVE; + *recurse = READ_TREE_RECURSIVE; if (!(ls_options & LS_SHOW_TREES)) - return recurse; + ret = *recurse; } - if (cmdmode == MODE_OBJECT_ONLY) { - printf("%s%c", find_unique_abbrev(oid, abbrev), line_termination); - return recurse; - } + return ret; +} - if (cmdmode == MODE_NAME_ONLY) { - baselen = base->len; - strbuf_addstr(base, pathname); - write_name_quoted_relative(base->buf, - chomp_prefix ? ls_tree_prefix : NULL, - stdout, line_termination); - strbuf_setlen(base, baselen); - return recurse; +static void show_tree_common_default_long(struct strbuf *base, + const char *pathname, + const size_t baselen) +{ + strbuf_addstr(base, pathname); + write_name_quoted_relative(base->buf, + chomp_prefix ? ls_tree_prefix : NULL, stdout, + line_termination); + strbuf_setlen(base, baselen); +} + +static int show_tree_default(const struct object_id *oid, struct strbuf *base, + const char *pathname, unsigned mode, + void *context) +{ + int early; + int recurse; + struct show_tree_data data = { 0 }; + + early = show_tree_common(&data, &recurse, oid, base, pathname, mode); + if (early >= 0) + return early; + + printf("%06o %s %s\t", data.mode, type_name(data.type), + find_unique_abbrev(data.oid, abbrev)); + show_tree_common_default_long(base, pathname, data.base->len); + return recurse; +} + +static int show_tree_long(const struct object_id *oid, struct strbuf *base, + const char *pathname, unsigned mode, void *context) +{ + int early; + int recurse; + struct show_tree_data data = { 0 }; + char size_text[24]; + + early = show_tree_common(&data, &recurse, oid, base, pathname, mode); + if (early >= 0) + return early; + + if (data.type == OBJ_BLOB) { + unsigned long size; + if (oid_object_info(the_repository, data.oid, &size) == OBJ_BAD) + xsnprintf(size_text, sizeof(size_text), "BAD"); + else + xsnprintf(size_text, sizeof(size_text), + "%" PRIuMAX, (uintmax_t)size); + } else { + xsnprintf(size_text, sizeof(size_text), "-"); } - if (cmdmode == MODE_LONG || - (!ls_options || (ls_options & LS_RECURSIVE) - || (ls_options & LS_SHOW_TREES) - || (ls_options & LS_TREE_ONLY))) - show_default(&data); + printf("%06o %s %s %7s\t", data.mode, type_name(data.type), + find_unique_abbrev(data.oid, abbrev), size_text); + show_tree_common_default_long(base, pathname, data.base->len); + return 1; +} +static int show_tree_name_only(const struct object_id *oid, struct strbuf *base, + const char *pathname, unsigned mode, void *context) +{ + int early; + int recurse; + const size_t baselen = base->len; + struct show_tree_data data = { 0 }; + + early = show_tree_common(&data, &recurse, oid, base, pathname, mode); + if (early >= 0) + return early; + + strbuf_addstr(base, pathname); + write_name_quoted_relative(base->buf, + chomp_prefix ? ls_tree_prefix : NULL, + stdout, line_termination); + strbuf_setlen(base, baselen); + return recurse; +} + +static int show_tree_object(const struct object_id *oid, struct strbuf *base, + const char *pathname, unsigned mode, void *context) +{ + int early; + int recurse; + struct show_tree_data data = { 0 }; + + early = show_tree_common(&data, &recurse, oid, base, pathname, mode); + if (early >= 0) + return early; + + printf("%s%c", find_unique_abbrev(oid, abbrev), line_termination); return recurse; } struct ls_tree_cmdmode_to_fmt { enum ls_tree_cmdmode mode; const char *const fmt; + read_tree_fn_t fn; }; static struct ls_tree_cmdmode_to_fmt ls_tree_cmdmode_format[] = { { .mode = MODE_DEFAULT, .fmt = "%(objectmode) %(objecttype) %(objectname)%x09%(path)", + .fn = show_tree_default, }, { .mode = MODE_LONG, .fmt = "%(objectmode) %(objecttype) %(objectname) %(objectsize:padded)%x09%(path)", + .fn = show_tree_long, }, { .mode = MODE_NAME_ONLY, /* And MODE_NAME_STATUS */ .fmt = "%(path)", + .fn = show_tree_name_only, }, { .mode = MODE_OBJECT_ONLY, .fmt = "%(objectname)", + .fn = show_tree_object + }, + { + /* fallback */ + .fn = show_tree_default, }, - { 0 }, }; int cmd_ls_tree(int argc, const char **argv, const char *prefix) @@ -282,7 +331,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) struct object_id oid; struct tree *tree; int i, full_tree = 0; - read_tree_fn_t fn = show_tree; + read_tree_fn_t fn = NULL; const struct option ls_tree_options[] = { OPT_BIT('d', NULL, &ls_options, N_("only show trees"), LS_TREE_ONLY), @@ -311,6 +360,7 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) OPT__ABBREV(&abbrev), OPT_END() }; + struct ls_tree_cmdmode_to_fmt *m2f = ls_tree_cmdmode_format; git_config(git_default_config, NULL); ls_tree_prefix = prefix; @@ -365,18 +415,19 @@ int cmd_ls_tree(int argc, const char **argv, const char *prefix) * The generic show_tree_fmt() is slower than show_tree(), so * take the fast path if possible. */ - if (format) { - struct ls_tree_cmdmode_to_fmt *m2f; - - fn = show_tree_fmt; - for (m2f = ls_tree_cmdmode_format; m2f->fmt; m2f++) { - if (strcmp(format, m2f->fmt)) - continue; - + while (m2f) { + if (!m2f->fmt) { + fn = format ? show_tree_fmt : show_tree_default; + } else if (format && !strcmp(format, m2f->fmt)) { cmdmode = m2f->mode; - fn = show_tree; - break; + fn = m2f->fn; + } else if (!format && cmdmode == m2f->mode) { + fn = m2f->fn; + } else { + m2f++; + continue; } + break; } return !!read_tree(the_repository, tree, &pathspec, fn, NULL); -- 2.34.1.404.g92931a4a2c.dirty