#ifndef REPLACE_OBJECT_H
#define REPLACE_OBJECT_H
+#include "oidmap.h"
+#include "repository.h"
+#include "object-store.h"
+
struct replace_object {
struct oidmap_entry original;
struct object_id replacement;
};
+/*
+ * This internal function is only declared here for the benefit of
+ * lookup_replace_object(). Please do not call it directly.
+ */
+#define do_lookup_replace_object(r, s) do_lookup_replace_object_##r(s)
+extern const struct object_id *do_lookup_replace_object_the_repository(const struct object_id *oid);
+
+/*
+ * If object sha1 should be replaced, return the replacement object's
+ * name (replaced recursively, if necessary). The return value is
+ * either sha1 or a pointer to a permanently-allocated value. When
+ * object replacement is suppressed, always return sha1.
+ */
+#define lookup_replace_object(r, s) lookup_replace_object_##r(s)
+static inline const struct object_id *lookup_replace_object_the_repository(const struct object_id *oid)
+{
+ if (!check_replace_refs ||
+ (the_repository->objects->replace_map &&
+ the_repository->objects->replace_map->map.tablesize == 0))
+ return oid;
+ return do_lookup_replace_object(the_repository, oid);
+}
+
#endif /* REPLACE_OBJECT_H */