[RFC/PATCH 7/9] parse-options.h: add macros for '--contains' option

[Karthik Nayak <karthik.188@gmail.com>]

Add a macro for using the '--contains' option in parse-options.h
also include an optional '--with' option macro which performs the
same action as '--contains'.

Make tag.c use this new macro

Mentored-by: Christian Couder <christian.couder@gmail.com>
Mentored-by: Matthieu Moy <matthieu.moy@grenoble-inp.fr>
Signed-off-by: Karthik Nayak <karthik.188@gmail.com>
---
 builtin/tag.c   | 14 ++------------
 parse-options.h | 10 ++++++++++
 2 files changed, 12 insertions(+), 12 deletions(-)

diff --git a/builtin/tag.c b/builtin/tag.c
index eda76ba..e16668b 100644
--- a/builtin/tag.c
+++ b/builtin/tag.c
@@ -591,23 +591,13 @@ int cmd_tag(int argc, const char **argv, const char *prefix)
 
 		OPT_GROUP(N_("Tag listing options")),
 		OPT_COLUMN(0, "column", &colopts, N_("show tag list in columns")),
+		OPT_CONTAINS(&with_commit, N_("print only tags that contain the commit")),
+		OPT_WITH(&with_commit, N_("print only tags that contain the commit")),
 		{
 			OPTION_CALLBACK, 0, "sort", &tag_sort, N_("type"), N_("sort tags"),
 			PARSE_OPT_NONEG, parse_opt_sort
 		},
 		{
-			OPTION_CALLBACK, 0, "contains", &with_commit, N_("commit"),
-			N_("print only tags that contain the commit"),
-			PARSE_OPT_LASTARG_DEFAULT,
-			parse_opt_with_commit, (intptr_t)"HEAD",
-		},
-		{
-			OPTION_CALLBACK, 0, "with", &with_commit, N_("commit"),
-			N_("print only tags that contain the commit"),
-			PARSE_OPT_HIDDEN | PARSE_OPT_LASTARG_DEFAULT,
-			parse_opt_with_commit, (intptr_t)"HEAD",
-		},
-		{
 			OPTION_CALLBACK, 0, "points-at", &points_at, N_("object"),
 			N_("print only tags of the object"), 0, parse_opt_points_at
 		},
diff --git a/parse-options.h b/parse-options.h
index 7bcf0f3..d8389ad 100644
--- a/parse-options.h
+++ b/parse-options.h
@@ -254,5 +254,15 @@ extern int parse_opt_noop_cb(const struct option *, const char *, int);
 	  PARSE_OPT_LASTARG_DEFAULT | PARSE_OPT_NONEG, \
 	  parse_opt_merge_filter, (intptr_t) "HEAD" \
 	}
+#define OPT_CONTAINS(filter, h) \
+	{ OPTION_CALLBACK, 0, "contains", (filter), N_("commit"), (h), \
+	  PARSE_OPT_LASTARG_DEFAULT, \
+	  parse_opt_with_commit, (intptr_t) "HEAD" \
+	}
+#define OPT_WITH(filter, h) \
+	{ OPTION_CALLBACK, 0, "with", (filter), N_("commit"), (h), \
+	  PARSE_OPT_LASTARG_DEFAULT, \
+	  parse_opt_with_commit, (intptr_t) "HEAD" \
+	}
 
 #endif
-- 
2.4.2