1 files changed, 22 insertions, 0 deletions
diff --git a/commit.c b/commit.c
index cb119ebdf2..bab8d5ab07 100644
--- a/commit.c
+++ b/commit.c
@@ -544,6 +544,17 @@ struct commit_list *commit_list_insert(struct commit *item, struct commit_list *
 	return new_list;
 }
 
+int commit_list_contains(struct commit *item, struct commit_list *list)
+{
+	while (list) {
+		if (list->item == item)
+			return 1;
+		list = list->next;
+	}
+
+	return 0;
+}
+
 unsigned commit_list_count(const struct commit_list *l)
 {
 	unsigned c = 0;
@@ -563,6 +574,17 @@ struct commit_list *copy_commit_list(struct commit_list *list)
 	return head;
 }
 
+struct commit_list *reverse_commit_list(struct commit_list *list)
+{
+	struct commit_list *next = NULL, *current, *backup;
+	for (current = list; current; current = backup) {
+		backup = current->next;
+		current->next = next;
+		next = current;
+	}
+	return next;
+}
+
 void free_commit_list(struct commit_list *list)
 {
 	while (list)