remote: convert get_stale_heads to take a struct refspec

Convert 'get_stale_heads()' to take a 'struct refspec' as a parameter instead
of a list of 'struct refspec_item'.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

builtin/fetch.c

@@ -963,7 +963,7 @@ static int prune_refs(struct refspec *rs, struct ref *ref_map,
 		      const char *raw_url)
 {
 	int url_len, i, result = 0;
-	struct ref *ref, *stale_refs = get_stale_heads(rs->items, rs->nr, ref_map);
+	struct ref *ref, *stale_refs = get_stale_heads(rs, ref_map);
 	char *url;
 	int summary_width = transport_summary_width(stale_refs);
 	const char *dangling_msg = dry_run

builtin/remote.c

@@ -347,8 +347,7 @@ static int get_ref_states(const struct ref *remote_refs, struct ref_states *stat
 		else
 			string_list_append(&states->tracked, abbrev_branch(ref->name));
 	}
-	stale_refs = get_stale_heads(states->remote->fetch.items,
-				     states->remote->fetch.nr, fetch_map);
+	stale_refs = get_stale_heads(&states->remote->fetch, fetch_map);
 	for (ref = stale_refs; ref; ref = ref->next) {
 		struct string_list_item *item =
 			string_list_append(&states->stale, abbrev_branch(ref->name));

remote.c

@@ -698,7 +698,9 @@ static int match_name_with_pattern(const char *key, const char *name,
 	return ret;
 }
 
-static void query_refspecs_multiple(struct refspec_item *refs, int ref_count, struct refspec_item *query, struct string_list *results)
+static void query_refspecs_multiple(struct refspec *rs,
+				    struct refspec_item *query,
+				    struct string_list *results)
 {
 	int i;
 	int find_src = !query->src;
@@ -706,8 +708,8 @@ static void query_refspecs_multiple(struct refspec_item *refs, int ref_count, st
 	if (find_src && !query->dst)
 		error("query_refspecs_multiple: need either src or dst");
 
-	for (i = 0; i < ref_count; i++) {
-		struct refspec_item *refspec = &refs[i];
+	for (i = 0; i < rs->nr; i++) {
+		struct refspec_item *refspec = &rs->items[i];
 		const char *key = find_src ? refspec->dst : refspec->src;
 		const char *value = find_src ? refspec->src : refspec->dst;
 		const char *needle = find_src ? query->dst : query->src;
@@ -2068,8 +2070,7 @@ struct ref *guess_remote_head(const struct ref *head,
 struct stale_heads_info {
 	struct string_list *ref_names;
 	struct ref **stale_refs_tail;
-	struct refspec_item *refs;
-	int ref_count;
+	struct refspec *rs;
 };
 
 static int get_stale_heads_cb(const char *refname, const struct object_id *oid,
@@ -2082,7 +2083,7 @@ static int get_stale_heads_cb(const char *refname, const struct object_id *oid,
 	memset(&query, 0, sizeof(struct refspec_item));
 	query.dst = (char *)refname;
 
-	query_refspecs_multiple(info->refs, info->ref_count, &query, &matches);
+	query_refspecs_multiple(info->rs, &query, &matches);
 	if (matches.nr == 0)
 		goto clean_exit; /* No matches */
 
@@ -2110,7 +2111,7 @@ clean_exit:
 	return 0;
 }
 
-struct ref *get_stale_heads(struct refspec_item *refs, int ref_count, struct ref *fetch_map)
+struct ref *get_stale_heads(struct refspec *rs, struct ref *fetch_map)
 {
 	struct ref *ref, *stale_refs = NULL;
 	struct string_list ref_names = STRING_LIST_INIT_NODUP;
@@ -2118,8 +2119,7 @@ struct ref *get_stale_heads(struct refspec_item *refs, int ref_count, struct ref
 
 	info.ref_names = &ref_names;
 	info.stale_refs_tail = &stale_refs;
-	info.refs = refs;
-	info.ref_count = ref_count;
+	info.rs = rs;
 	for (ref = fetch_map; ref; ref = ref->next)
 		string_list_append(&ref_names, ref->name);
 	string_list_sort(&ref_names);

remote.h

@@ -267,7 +267,7 @@ struct ref *guess_remote_head(const struct ref *head,
 			      int all);
 
 /* Return refs which no longer exist on remote */
-struct ref *get_stale_heads(struct refspec_item *refs, int ref_count, struct ref *fetch_map);
+struct ref *get_stale_heads(struct refspec *rs, struct ref *fetch_map);
 
 /*
  * Compare-and-swap