From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-5.3 required=3.0 tests=AWL,BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,RCVD_IN_DNSWL_HI,RP_MATCHES_RCVD shortcircuit=no autolearn=ham autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by dcvr.yhbt.net (Postfix) with ESMTP id E599D20756 for ; Wed, 18 Jan 2017 00:09:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752681AbdARAJg (ORCPT ); Tue, 17 Jan 2017 19:09:36 -0500 Received: from mga09.intel.com ([134.134.136.24]:58848 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751750AbdARAJf (ORCPT ); Tue, 17 Jan 2017 19:09:35 -0500 Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga102.jf.intel.com with ESMTP; 17 Jan 2017 16:09:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.33,247,1477983600"; d="scan'208";a="31891935" Received: from jekeller-desk.amr.corp.intel.com ([10.166.35.174]) by orsmga002.jf.intel.com with ESMTP; 17 Jan 2017 16:09:32 -0800 From: Jacob Keller To: git@vger.kernel.org Cc: Johannes Sixt , Johannes Schindelin , Junio C Hamano , Jacob Keller Subject: [PATCH v3 5/5] describe: teach describe negative pattern matches Date: Tue, 17 Jan 2017 16:09:30 -0800 Message-Id: <20170118000930.5431-6-jacob.e.keller@intel.com> X-Mailer: git-send-email 2.11.0.403.g196674b8396b In-Reply-To: <20170118000930.5431-1-jacob.e.keller@intel.com> References: <20170118000930.5431-1-jacob.e.keller@intel.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org From: Jacob Keller Teach git-describe the `--exclude` option which will allow specifying a glob pattern of tags to ignore. This can be combined with the `--match` patterns to enable more flexibility in determining which tags to consider. For example, suppose you wish to find the first official release tag that contains a certain commit. If we assume that official release tags are of the form "v*" and pre-release candidates include "*rc*" in their name, we can now find the first tag that introduces commit abcdef via: git describe --contains --match="v*" --exclude="*rc*" Add documentation and tests for this change. Signed-off-by: Jacob Keller --- Documentation/git-describe.txt | 8 ++++++++ builtin/describe.c | 21 +++++++++++++++++++++ t/t6120-describe.sh | 8 ++++++++ 3 files changed, 37 insertions(+) diff --git a/Documentation/git-describe.txt b/Documentation/git-describe.txt index 7ad41e2f6ade..21a43b78924a 100644 --- a/Documentation/git-describe.txt +++ b/Documentation/git-describe.txt @@ -88,6 +88,14 @@ OPTIONS patterns will be considered. Use `--no-match` to clear and reset the list of patterns. +--exclude :: + Do not consider tags matching the given `glob(7)` pattern, excluding + the "refs/tags/" prefix. This can be used to narrow the tag space and + find only tags matching some meaningful criteria. If given multiple + times, a list of patterns will be accumulated and tags matching any + of the patterns will be excluded. Use `--no-exclude` to clear and + reset the list of patterns. + --always:: Show uniquely abbreviated commit object as fallback. diff --git a/builtin/describe.c b/builtin/describe.c index 5cc9e9abe798..6769446e1f57 100644 --- a/builtin/describe.c +++ b/builtin/describe.c @@ -29,6 +29,7 @@ static int max_candidates = 10; static struct hashmap names; static int have_util; static struct string_list patterns = STRING_LIST_INIT_NODUP; +static struct string_list exclude_patterns = STRING_LIST_INIT_NODUP; static int always; static const char *dirty; @@ -130,6 +131,22 @@ static int get_name(const char *path, const struct object_id *oid, int flag, voi return 0; /* + * If we're given exclude patterns, first exclude any tag which match + * any of the exclude pattern. + */ + if (exclude_patterns.nr) { + struct string_list_item *item; + + if (!is_tag) + return 0; + + for_each_string_list_item(item, &exclude_patterns) { + if (!wildmatch(item->string, path + 10, 0, NULL)) + return 0; + } + } + + /* * If we're given patterns, accept only tags which match at least one * pattern. */ @@ -421,6 +438,8 @@ int cmd_describe(int argc, const char **argv, const char *prefix) N_("consider most recent tags (default: 10)")), OPT_STRING_LIST(0, "match", &patterns, N_("pattern"), N_("only consider tags matching ")), + OPT_STRING_LIST(0, "exclude", &exclude_patterns, N_("pattern"), + N_("do not consider tags matching ")), OPT_BOOL(0, "always", &always, N_("show abbreviated commit object as fallback")), {OPTION_STRING, 0, "dirty", &dirty, N_("mark"), @@ -458,6 +477,8 @@ int cmd_describe(int argc, const char **argv, const char *prefix) argv_array_push(&args, "--tags"); for_each_string_list_item(item, &patterns) argv_array_pushf(&args, "--refs=refs/tags/%s", item->string); + for_each_string_list_item(item, &exclude_patterns) + argv_array_pushf(&args, "--exclude=refs/tags/%s", item->string); } if (argc) argv_array_pushv(&args, argv); diff --git a/t/t6120-describe.sh b/t/t6120-describe.sh index 9e5db9b87a1f..167491fd5b0d 100755 --- a/t/t6120-describe.sh +++ b/t/t6120-describe.sh @@ -218,6 +218,14 @@ test_expect_success 'describe --contains and --match' ' test_cmp expect actual ' +test_expect_success 'describe --exclude' ' + echo "c~1" >expect && + tagged_commit=$(git rev-parse "refs/tags/A^0") && + test_must_fail git describe --contains --match="B" $tagged_commit && + git describe --contains --match="?" --exclude="A" $tagged_commit >actual && + test_cmp expect actual +' + test_expect_success 'describe --contains and --no-match' ' echo "A^0" >expect && tagged_commit=$(git rev-parse "refs/tags/A^0") && -- 2.11.0.403.g196674b8396b