1 files changed, 13 insertions, 1 deletions
diff --git a/oidset.c b/oidset.c
index b36a2ba..91d1385 100644
--- a/oidset.c
+++ b/oidset.c
@@ -1,5 +1,7 @@
-#include "cache.h"
+#include "git-compat-util.h"
 #include "oidset.h"
+#include "hex.h"
+#include "strbuf.h"
 
 void oidset_init(struct oidset *set, size_t initial_size)
 {
@@ -21,6 +23,16 @@ int oidset_insert(struct oidset *set, const struct object_id *oid)
 	return !added;
 }
 
+void oidset_insert_from_set(struct oidset *dest, struct oidset *src)
+{
+	struct oidset_iter iter;
+	struct object_id *src_oid;
+
+	oidset_iter_init(src, &iter);
+	while ((src_oid = oidset_iter_next(&iter)))
+		oidset_insert(dest, src_oid);
+}
+
 int oidset_remove(struct oidset *set, const struct object_id *oid)
 {
 	khiter_t pos = kh_get_oid_set(&set->set, *oid);