From mboxrd@z Thu Jan 1 00:00:00 1970 From: Karthik Nayak Subject: [PATCH v6 03/17] ref-filter: implement %(if:equals=) and %(if:notequals=) Date: Sun, 15 May 2016 16:15:19 +0530 Message-ID: <1463309133-14503-4-git-send-email-Karthik.188@gmail.com> References: <1463309133-14503-1-git-send-email-Karthik.188@gmail.com> Cc: gitster@pobox.com, peff@peff.net, Karthik Nayak , Karthik Nayak To: git@vger.kernel.org X-From: git-owner@vger.kernel.org Sun May 15 12:45:57 2016 Return-path: Envelope-to: gcvg-git-2@plane.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1b1tYT-0003Ln-HO for gcvg-git-2@plane.gmane.org; Sun, 15 May 2016 12:45:49 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754147AbcEOKpq (ORCPT ); Sun, 15 May 2016 06:45:46 -0400 Received: from mail-pa0-f66.google.com ([209.85.220.66]:36653 "EHLO mail-pa0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751953AbcEOKpo (ORCPT ); Sun, 15 May 2016 06:45:44 -0400 Received: by mail-pa0-f66.google.com with SMTP id xm6so1468396pab.3 for ; Sun, 15 May 2016 03:45:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=kxRKIiLZ7TblMyrPladR42GIxl8vexlHfbrndh/KK4g=; b=S3ZshLEc1MDNcywsh7graetvzBPOFOyUFs+HlHvJ3Y/BMKBlPMPHMuG6eNS4oWiDWl 3VJdWNUnTPTRqDVXtikDJX3N+/FBv/8OURU8p9Ot1iQiyp/+rNOaytKRBoetDTVkiSM9 vgSrgMLA/2rHGGKxns9ZLoL/SY8PY9tQBJG4a/aJfs1jRSnm0E9RV6XeRo6L+7D1QIVZ ACw2A1Jo/ZmwGWHnCyRyZ0ORClhR4ihiS1ciChkiaJcfE9WQnVDDYEYESykC6O+dTK/s bOwrim+mBWzX9M/LlXtT31icpMLpPSHsr2ErS9u9x/wD/ugkTp7ezIqn0mdkvP4BZgWZ YO5w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=kxRKIiLZ7TblMyrPladR42GIxl8vexlHfbrndh/KK4g=; b=ljlSw5NAWlte7qd0UdXrMWz0TR/8vAZkgUO3pefood16HibeKuBYXmui5CyBQfmKqG TJe+3NiNW/ZSJj0J1yJUrvLrJgu1W8FsZGkRWbePvL3/3wFmvyks4gPou8pyZMnvisaR cgPYGHdt731q7WJc6V/Ed0mE28jh27tXBdELxDMaUwi5VugqmqhnbVObXNef+v7JYf1y RilnU5lAOKt6XtbUbCHhHPuI4PxNGQEEabEtblsb1DfRVJ9txD6Xy2oqq1SUb0XlYZlR udxlogjvsUngZe4GU2QlmmBOr7uw/dapPdSYsxwd6QLMoBMI9odksdUOl5Q5Yhr06evL z/wA== X-Gm-Message-State: AOPr4FU8NmWLSSbUM+HO7WnYILS8CBPKcQxe4BvbJ8JfPBa0sVEhDX9kvEjD2riuQopn+w== X-Received: by 10.66.177.16 with SMTP id cm16mr36833034pac.23.1463309143839; Sun, 15 May 2016 03:45:43 -0700 (PDT) Received: from ashley.localdomain ([106.51.133.65]) by smtp.gmail.com with ESMTPSA id 71sm39866747pfy.32.2016.05.15.03.45.40 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Sun, 15 May 2016 03:45:43 -0700 (PDT) X-Google-Original-From: Karthik Nayak X-Mailer: git-send-email 2.8.2 In-Reply-To: <1463309133-14503-1-git-send-email-Karthik.188@gmail.com> Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: Implement %(if:equals=) wherein the if condition is only satisfied if the value obtained between the %(if:...) and %(then) atom is the same as the given ''. Similarly, implement (if:notequals=) wherein the if condition is only satisfied if the value obtained between the %(if:...) and %(then) atom is differnt from the given ''. This is done by introducing 'if_atom_parser()' which parses the given %(if) atom and then stores the data in used_atom which is later passed on to the used_atom of the %(then) atom, so that it can do the required comparisons. Add tests and Documentation for the same. Mentored-by: Christian Couder Mentored-by: Matthieu Moy Signed-off-by: Karthik Nayak --- Documentation/git-for-each-ref.txt | 3 +++ ref-filter.c | 43 +++++++++++++++++++++++++++++++++----- t/t6302-for-each-ref-filter.sh | 18 ++++++++++++++++ 3 files changed, 59 insertions(+), 5 deletions(-) diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index aea37b2..58dc9e7 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -152,6 +152,9 @@ if:: evaluating the string before %(then), this is useful when we use the %(HEAD) atom which prints either "*" or " " and we want to apply the 'if' condition only on the 'HEAD' ref. + Append ":equals=" or ":notequals=" to compare + the value between the %(if:...) and %(then) atoms with the + given string. In addition to the above, for commit and tag objects, the header field names (`tree`, `parent`, `object`, `type`, and `tag`) can diff --git a/ref-filter.c b/ref-filter.c index 12e646c..857a8b5 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -22,6 +22,8 @@ struct align { }; struct if_then_else { + const char *if_equals, + *not_equals; unsigned int then_atom_seen : 1, else_atom_seen : 1, condition_satisfied : 1; @@ -49,6 +51,10 @@ static struct used_atom { enum { C_BARE, C_BODY, C_BODY_DEP, C_LINES, C_SIG, C_SUB } option; unsigned int nlines; } contents; + struct { + const char *if_equals, + *not_equals; + } if_then_else; enum { O_FULL, O_SHORT } objectname; } u; } *used_atom; @@ -169,6 +175,19 @@ static void align_atom_parser(struct used_atom *atom, const char *arg) string_list_clear(¶ms, 0); } +static void if_atom_parser(struct used_atom *atom, const char *arg) +{ + if (!arg) + return; + else if (skip_prefix(arg, "equals=", &atom->u.if_then_else.if_equals)) + ; + else if (skip_prefix(arg, "notequals=", &atom->u.if_then_else.not_equals)) + ; + else + die(_("unrecognized %%(if) argument: %s"), arg); +} + + static struct { const char *name; cmp_type cmp_type; @@ -209,7 +228,7 @@ static struct { { "color", FIELD_STR, color_atom_parser }, { "align", FIELD_STR, align_atom_parser }, { "end" }, - { "if" }, + { "if", FIELD_STR, if_atom_parser }, { "then" }, { "else" }, }; @@ -410,6 +429,9 @@ static void if_atom_handler(struct atom_value *atomv, struct ref_formatting_stat struct ref_formatting_stack *new; struct if_then_else *if_then_else = xcalloc(sizeof(struct if_then_else), 1); + if_then_else->if_equals = atomv->atom->u.if_then_else.if_equals; + if_then_else->not_equals = atomv->atom->u.if_then_else.not_equals; + push_stack_element(&state->stack); new = state->stack; new->at_end = if_then_else_handler; @@ -441,10 +463,17 @@ static void then_atom_handler(struct atom_value *atomv, struct ref_formatting_st die(_("format: %%(then) atom used after %%(else)")); if_then_else->then_atom_seen = 1; /* - * If there exists non-empty string between the 'if' and - * 'then' atom then the 'if' condition is satisfied. + * If the 'equals' or 'notequals' attribute is used then + * perform the required comparison. If not, only non-empty + * strings satisfy the 'if' condition. */ - if (cur->output.len && !is_empty(cur->output.buf)) + if (if_then_else->if_equals) { + if (!strcmp(if_then_else->if_equals, cur->output.buf)) + if_then_else->condition_satisfied = 1; + } else if (if_then_else->not_equals) { + if (strcmp(if_then_else->not_equals, cur->output.buf)) + if_then_else->condition_satisfied = 1; + } else if (cur->output.len && !is_empty(cur->output.buf)) if_then_else->condition_satisfied = 1; strbuf_reset(&cur->output); } @@ -1137,7 +1166,11 @@ static void populate_value(struct ref_array_item *ref) } else if (!strcmp(name, "end")) { v->handler = end_atom_handler; continue; - } else if (!strcmp(name, "if")) { + } else if (starts_with(name, "if")) { + const char *s; + + if (skip_prefix(name, "if:", &s)) + v->s = xstrdup(s); v->handler = if_atom_handler; continue; } else if (!strcmp(name, "then")) { diff --git a/t/t6302-for-each-ref-filter.sh b/t/t6302-for-each-ref-filter.sh index fed3013..a09a1a4 100755 --- a/t/t6302-for-each-ref-filter.sh +++ b/t/t6302-for-each-ref-filter.sh @@ -403,4 +403,22 @@ test_expect_success 'ignore spaces in %(if) atom usage' ' test_cmp expect actual ' +test_expect_success 'check %(if:equals=)' ' + git for-each-ref --format="%(if:equals=master)%(refname:short)%(then)Found master%(else)Not master%(end)" refs/heads/ >actual && + cat >expect <<-\EOF && + Found master + Not master + EOF + test_cmp expect actual +' + +test_expect_success 'check %(if:notequals=)' ' + git for-each-ref --format="%(if:notequals=master)%(refname:short)%(then)Not master%(else)Found master%(end)" refs/heads/ >actual && + cat >expect <<-\EOF && + Found master + Not master + EOF + test_cmp expect actual +' + test_done -- 2.8.2