From patchwork Tue Oct 24 13:10:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Patrick Steinhardt X-Patchwork-Id: 13434440 Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2BD2029439 for ; Tue, 24 Oct 2023 13:11:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=pks.im header.i=@pks.im header.b="gP4YN6eJ"; dkim=pass (2048-bit key) header.d=messagingengine.com header.i=@messagingengine.com header.b="DloN5qZ/" Received: from wout4-smtp.messagingengine.com (wout4-smtp.messagingengine.com [64.147.123.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5A3AC171B for ; Tue, 24 Oct 2023 06:11:01 -0700 (PDT) Received: from compute6.internal (compute6.nyi.internal [10.202.2.47]) by mailout.west.internal (Postfix) with ESMTP id 8038C32009BC; Tue, 24 Oct 2023 09:11:00 -0400 (EDT) Received: from mailfrontend2 ([10.202.2.163]) by compute6.internal (MEProxy); Tue, 24 Oct 2023 09:11:00 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=pks.im; h=cc:cc :content-type:content-type:date:date:from:from:in-reply-to :in-reply-to:message-id:mime-version:references:reply-to:sender :subject:subject:to:to; s=fm3; t=1698153060; x=1698239460; bh=Yn vpPzdGk4bUNY/bhU20UOcJo8wC+m4Qxkd/16716R8=; b=gP4YN6eJClfhNfl3Rv NH2/RzVJjtnC5bJC7v+Ma2/iEn6ik2I5NuUdsO3pLlBxCYYId0fObHETkqVc4jPb Zk3GCA8YwN2OTruBYL87ihhOjHjQTCvJcs4ZNRamMzX+41hAJDwj08fRtln2+Q7O BKIswIYBFLHoO/SuI3Z9VN//tKblFyepUXVLFAu5RPHfAD6RonIyCDwz2CRLjcVQ k9WkGNW8c5vHp458RL0bIveVPT4/OZQW46RuBU3GN5aQ4+IVabXXOWvHPDiPelXy cGWi7ugqK4CHROwZM9tDVLxp0lXfF0tWcfs1jd9Pp9eFSStX3JK9MGfEHkAbkxNV 5WRQ== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:content-type:date:date :feedback-id:feedback-id:from:from:in-reply-to:in-reply-to :message-id:mime-version:references:reply-to:sender:subject :subject:to:to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender :x-sasl-enc; s=fm3; t=1698153060; x=1698239460; bh=YnvpPzdGk4bUN Y/bhU20UOcJo8wC+m4Qxkd/16716R8=; b=DloN5qZ/jJRBZQtdPFxdmDdkAF3u2 5A41roaa/FO6PEb8YgzQH7WfEFuTC4Yuw92cZurwapbuCU/Qpy+5353hcdw4yStv UQWyAVH7P9VHZ1HbMLcnIJRjlyM9yy0+TOTc0tlPEjX/qNCW7RXQeqplir+F5iUR d0S4wKNseukThavu3Wl/8uqgsEX4/BmtJTCZ4zdFAvKnf8UxLwXgOB8T2+w+1nNn hvIaV7OZbcqhATJ6d8rBUFubOsyz7V5gGtZpuq8wl8W5b6iRbnn14/h2wgrhhBTT /sMQw7E0LtPSk5yknvx81Zi0TZs1bIYXmHn2baIgrU4cr/o+kphEcl1+w== X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvkedrkeekgdeitdcutefuodetggdotefrodftvf curfhrohhfihhlvgemucfhrghsthforghilhdpqfgfvfdpuffrtefokffrpgfnqfghnecu uegrihhlohhuthemuceftddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenuc fjughrpeffhffvvefukfhfgggtuggjsehgtderredttddvnecuhfhrohhmpefrrghtrhhi tghkucfuthgvihhnhhgrrhguthcuoehpshesphhkshdrihhmqeenucggtffrrghtthgvrh hnpeeukedtvedtffevleejtefgheehieegkeeluddvfeefgeehgfeltddtheejleffteen ucevlhhushhtvghrufhiiigvpedunecurfgrrhgrmhepmhgrihhlfhhrohhmpehpshesph hkshdrihhm X-ME-Proxy: Feedback-ID: i197146af:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Tue, 24 Oct 2023 09:10:58 -0400 (EDT) Received: by vm-mail (OpenSMTPD) with ESMTPSA id ed772654 (TLSv1.3:TLS_AES_256_GCM_SHA384:256:NO); Tue, 24 Oct 2023 13:10:54 +0000 (UTC) Date: Tue, 24 Oct 2023 15:10:57 +0200 From: Patrick Steinhardt To: git@vger.kernel.org Cc: Junio C Hamano , Eric Sunshine , Han-Wen Nienhuys Subject: [PATCH 05/12] builtin/show-ref: refactor `--exclude-existing` options Message-ID: <8d0b0b5700c7ffed6b3a74760d0d9155b404bb4f.1698152926.git.ps@pks.im> References: Precedence: bulk X-Mailing-List: git@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: It's not immediately obvious options which options are applicable to what subcommand ni git-show-ref(1) because all options exist as global state. This can easily cause confusion for the reader. Refactor options for the `--exclude-existing` subcommand to be contained in a separate structure. This structure is stored on the stack and passed down as required. Consequentially, it clearly delimits the scope of those options and requires the reader to worry less about global state. Signed-off-by: Patrick Steinhardt --- builtin/show-ref.c | 72 +++++++++++++++++++++++++--------------------- 1 file changed, 39 insertions(+), 33 deletions(-) diff --git a/builtin/show-ref.c b/builtin/show-ref.c index eb60f940a3c..e130b999c0b 100644 --- a/builtin/show-ref.c +++ b/builtin/show-ref.c @@ -19,8 +19,7 @@ static const char * const show_ref_usage[] = { }; static int deref_tags, show_head, tags_only, heads_only, found_match, verify, - quiet, hash_only, abbrev, exclude_arg; -static const char *exclude_existing_arg; + quiet, hash_only, abbrev; static void show_one(const char *refname, const struct object_id *oid) { @@ -95,6 +94,11 @@ static int add_existing(const char *refname, return 0; } +struct exclude_existing_options { + int enabled; + const char *pattern; +}; + /* * read "^(?:\s)?(?:\^\{\})?$" from the standard input, * and @@ -104,11 +108,11 @@ static int add_existing(const char *refname, * (4) ignore if refname is a ref that exists in the local repository; * (5) otherwise output the line. */ -static int cmd_show_ref__exclude_existing(const char *match) +static int cmd_show_ref__exclude_existing(const struct exclude_existing_options *opts) { struct string_list existing_refs = STRING_LIST_INIT_DUP; char buf[1024]; - int matchlen = match ? strlen(match) : 0; + int matchlen = opts->pattern ? strlen(opts->pattern) : 0; for_each_ref(add_existing, &existing_refs); while (fgets(buf, sizeof(buf), stdin)) { @@ -124,11 +128,11 @@ static int cmd_show_ref__exclude_existing(const char *match) for (ref = buf + len; buf < ref; ref--) if (isspace(ref[-1])) break; - if (match) { + if (opts->pattern) { int reflen = buf + len - ref; if (reflen < matchlen) continue; - if (strncmp(ref, match, matchlen)) + if (strncmp(ref, opts->pattern, matchlen)) continue; } if (check_refname_format(ref, 0)) { @@ -200,44 +204,46 @@ static int hash_callback(const struct option *opt, const char *arg, int unset) static int exclude_existing_callback(const struct option *opt, const char *arg, int unset) { + struct exclude_existing_options *opts = opt->value; BUG_ON_OPT_NEG(unset); - exclude_arg = 1; - *(const char **)opt->value = arg; + opts->enabled = 1; + opts->pattern = arg; return 0; } -static const struct option show_ref_options[] = { - OPT_BOOL(0, "tags", &tags_only, N_("only show tags (can be combined with heads)")), - OPT_BOOL(0, "heads", &heads_only, N_("only show heads (can be combined with tags)")), - OPT_BOOL(0, "verify", &verify, N_("stricter reference checking, " - "requires exact ref path")), - OPT_HIDDEN_BOOL('h', NULL, &show_head, - N_("show the HEAD reference, even if it would be filtered out")), - OPT_BOOL(0, "head", &show_head, - N_("show the HEAD reference, even if it would be filtered out")), - OPT_BOOL('d', "dereference", &deref_tags, - N_("dereference tags into object IDs")), - OPT_CALLBACK_F('s', "hash", &abbrev, N_("n"), - N_("only show SHA1 hash using digits"), - PARSE_OPT_OPTARG, &hash_callback), - OPT__ABBREV(&abbrev), - OPT__QUIET(&quiet, - N_("do not print results to stdout (useful with --verify)")), - OPT_CALLBACK_F(0, "exclude-existing", &exclude_existing_arg, - N_("pattern"), N_("show refs from stdin that aren't in local repository"), - PARSE_OPT_OPTARG | PARSE_OPT_NONEG, exclude_existing_callback), - OPT_END() -}; - int cmd_show_ref(int argc, const char **argv, const char *prefix) { + struct exclude_existing_options exclude_existing_opts = {0}; + const struct option show_ref_options[] = { + OPT_BOOL(0, "tags", &tags_only, N_("only show tags (can be combined with heads)")), + OPT_BOOL(0, "heads", &heads_only, N_("only show heads (can be combined with tags)")), + OPT_BOOL(0, "verify", &verify, N_("stricter reference checking, " + "requires exact ref path")), + OPT_HIDDEN_BOOL('h', NULL, &show_head, + N_("show the HEAD reference, even if it would be filtered out")), + OPT_BOOL(0, "head", &show_head, + N_("show the HEAD reference, even if it would be filtered out")), + OPT_BOOL('d', "dereference", &deref_tags, + N_("dereference tags into object IDs")), + OPT_CALLBACK_F('s', "hash", &abbrev, N_("n"), + N_("only show SHA1 hash using digits"), + PARSE_OPT_OPTARG, &hash_callback), + OPT__ABBREV(&abbrev), + OPT__QUIET(&quiet, + N_("do not print results to stdout (useful with --verify)")), + OPT_CALLBACK_F(0, "exclude-existing", &exclude_existing_opts, + N_("pattern"), N_("show refs from stdin that aren't in local repository"), + PARSE_OPT_OPTARG | PARSE_OPT_NONEG, exclude_existing_callback), + OPT_END() + }; + git_config(git_default_config, NULL); argc = parse_options(argc, argv, prefix, show_ref_options, show_ref_usage, 0); - if (exclude_arg) - return cmd_show_ref__exclude_existing(exclude_existing_arg); + if (exclude_existing_opts.enabled) + return cmd_show_ref__exclude_existing(&exclude_existing_opts); else if (verify) return cmd_show_ref__verify(argv); else