Add support for config param summary-tags

This parameter can be used to specify max number of tags to show on
the summary page. If not specified, all tags are printed.

Signed-off-by: Lars Hjemli <hjemli@gmail.com>

cgit.h

@@ -143,6 +143,7 @@ extern int cgit_cache_dynamic_ttl;
 extern int cgit_cache_static_ttl;
 extern int cgit_cache_max_create_time;
 extern int cgit_summary_log;
+extern int cgit_summary_tags;
 
 extern int cgit_max_msg_len;
 extern int cgit_max_repodesc_len;

shared.c

@@ -38,6 +38,7 @@ int cgit_cache_dynamic_ttl     =  5;
 int cgit_cache_static_ttl      = -1;
 int cgit_cache_max_create_time =  5;
 int cgit_summary_log           =  0;
+int cgit_summary_tags          =  0;
 int cgit_renamelimit           = -1;
 
 int cgit_max_msg_len = 60;
@@ -181,6 +182,8 @@ void cgit_global_config_cb(const char *name, const char *value)
 		cgit_max_commit_count = atoi(value);
 	else if (!strcmp(name, "summary-log"))
 		cgit_summary_log = atoi(value);
+	else if (!strcmp(name, "summary-tags"))
+		cgit_summary_tags = atoi(value);
 	else if (!strcmp(name, "agefile"))
 		cgit_agefile = xstrdup(value);
 	else if (!strcmp(name, "renamelimit"))

ui-summary.c

@@ -162,7 +162,7 @@ static void cgit_print_branches()
 		cgit_print_branch(list.refs[i]);
 }
 
-static void cgit_print_tags()
+static void cgit_print_tags(int maxcount)
 {
 	struct reflist list;
 	int i;
@@ -174,8 +174,12 @@ static void cgit_print_tags()
 	if (list.count == 0)
 		return;
 	qsort(list.refs, list.count, sizeof(*list.refs), cmp_tag_age);
+	if (!maxcount)
+		maxcount = list.count;
+	else if (maxcount > list.count)
+		maxcount = list.count;
 	print_tag_header();
-	for(i=0; i<list.count; i++)
+	for(i=0; i<maxcount; i++)
 		print_tag(list.refs[i]);
 }
 
@@ -206,6 +210,6 @@ void cgit_print_summary()
 		html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
 	cgit_print_branches();
 	html("<tr class='nohover'><td colspan='4'>&nbsp;</td></tr>");
-	cgit_print_tags();
+	cgit_print_tags(cgit_summary_tags);
 	html("</table>");
 }