From: Tom Grennan <tmgrennan@gmail.com>
Date: Sat, 11 Feb 2012 02:16:56 GMT
Subject: [PATCHv2 2/4] tag: use refs.c:refname_match_patterns()
Message-ID: <1328926618-17167-3-git-send-email-tmgrennan@gmail.com>
In-Reply-To: <1328926618-17167-1-git-send-email-tmgrennan@gmail.com>

This will exclude tags matching patterns prefaced with the '!'
character.  This has precedence over other matching patterns.
For example,

  $ git tag -l \!*-rc? v1.7.8*
  v1.7.8
  v1.7.8.1
  v1.7.8.2
  v1.7.8.3
  v1.7.8.4
  $ git tag -l v1.7.8* \!*-rc?
  v1.7.8
  v1.7.8.1
  v1.7.8.2
  v1.7.8.3
  v1.7.8.4

This is equivalent to,

  $ git tag -l v1.7.8* | grep -v '\-rc.'

Without a matching pattern, filter all tags with the "!" patterns,
  $ ./git-tag -l \!*-rc?
  gitgui-0.10.0
  gitgui-0.10.1
  gitgui-0.10.2
  ...
  v1.7.8.3
  v1.7.8.4
  v1.7.9

That is equivalent to,

  $ git tag -l | grep -v '\-rc.'

Signed-off-by: Tom Grennan <tmgrennan@gmail.com>
---
 Documentation/git-tag.txt |   10 ++++++----
 builtin/tag.c             |   15 ++-------------
 2 files changed, 8 insertions(+), 17 deletions(-)

diff --git a/Documentation/git-tag.txt b/Documentation/git-tag.txt
index 53ff5f6..56ea2fa 100644
--- a/Documentation/git-tag.txt
+++ b/Documentation/git-tag.txt
@@ -12,7 +12,7 @@ SYNOPSIS
 'git tag' [-a | -s | -u <key-id>] [-f] [-m <msg> | -F <file>]
 	<tagname> [<commit> | <object>]
 'git tag' -d <tagname>...
-'git tag' [-n[<num>]] -l [--contains <commit>] [<pattern>...]
+'git tag' [-n[<num>]] -l [--contains <commit>] [[!]<pattern>...]
 'git tag' -v <tagname>...
 
 DESCRIPTION
@@ -75,13 +75,15 @@ OPTIONS
 	If no number is given to `-n`, only the first line is printed.
 	If the tag is not annotated, the commit message is displayed instead.
 
--l <pattern>::
---list <pattern>::
+-l [!]<pattern>::
+--list [!]<pattern>::
 	List tags with names that match the given pattern (or all if no
 	pattern is given).  Running "git tag" without arguments also
 	lists all tags. The pattern is a shell wildcard (i.e., matched
 	using fnmatch(3)).  Multiple patterns may be given; if any of
-	them matches, the tag is shown.
+	them matches, the tag is shown.  If the pattern is prefaced with
+	the '!' character, all tags matching the pattern are filtered
+	from the list.
 
 --contains <commit>::
 	Only list tags which contain the specified commit.
diff --git a/builtin/tag.c b/builtin/tag.c
index 31f02e8..7f99424 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -19,7 +19,7 @@
 static const char * const git_tag_usage[] = {
 	"git tag [-a|-s|-u <key-id>] [-f] [-m <msg>|-F <file>] <tagname> [<head>]",
 	"git tag -d <tagname>...",
-	"git tag -l [-n[<num>]] [<pattern>...]",
+	"git tag -l [-n[<num>]] [[!]<pattern>...]",
 	"git tag -v <tagname>...",
 	NULL
 };
@@ -30,17 +30,6 @@ struct tag_filter {
 	struct commit_list *with_commit;
 };
 
-static int match_pattern(const char **patterns, const char *ref)
-{
-	/* no pattern means match everything */
-	if (!*patterns)
-		return 1;
-	for (; *patterns; patterns++)
-		if (!fnmatch(*patterns, ref, 0))
-			return 1;
-	return 0;
-}
-
 static int in_commit_list(const struct commit_list *want, struct commit *c)
 {
 	for (; want; want = want->next)
@@ -88,7 +77,7 @@ static int show_reference(const char *refname, const unsigned char *sha1,
 {
 	struct tag_filter *filter = cb_data;
 
-	if (match_pattern(filter->patterns, refname)) {
+	if (refname_match_patterns(filter->patterns, refname)) {
 		int i;
 		unsigned long size;
 		enum object_type type;
-- 
1.7.8