1 files changed, 29 insertions, 0 deletions
diff --git a/source/blender/blenkernel/intern/lib_id.c b/source/blender/blenkernel/intern/lib_id.c
index 7fb19458eec..678f717efe4 100644
--- a/source/blender/blenkernel/intern/lib_id.c
+++ b/source/blender/blenkernel/intern/lib_id.c
@@ -75,6 +75,8 @@
 
 #include "RNA_access.h"
 
+#include "BLO_read_write.h"
+
 #include "atomic_ops.h"
 
 //#define DEBUG_TIME
@@ -2326,3 +2328,30 @@ void BKE_id_reorder(const ListBase *lb, ID *id, ID *relative, bool after)
     *id_order = relative_order - 1;
   }
 }
+
+void BKE_id_blend_write(BlendWriter *writer, ID *id)
+{
+  /* ID_WM's id->properties are considered runtime only, and never written in .blend file. */
+  if (id->properties && !ELEM(GS(id->name), ID_WM)) {
+    IDP_BlendWrite(writer, id->properties);
+  }
+
+  if (id->override_library) {
+    BLO_write_struct(writer, IDOverrideLibrary, id->override_library);
+
+    BLO_write_struct_list(writer, IDOverrideLibraryProperty, &id->override_library->properties);
+    LISTBASE_FOREACH (IDOverrideLibraryProperty *, op, &id->override_library->properties) {
+      BLO_write_string(writer, op->rna_path);
+
+      BLO_write_struct_list(writer, IDOverrideLibraryPropertyOperation, &op->operations);
+      LISTBASE_FOREACH (IDOverrideLibraryPropertyOperation *, opop, &op->operations) {
+        if (opop->subitem_reference_name) {
+          BLO_write_string(writer, opop->subitem_reference_name);
+        }
+        if (opop->subitem_local_name) {
+          BLO_write_string(writer, opop->subitem_local_name);
+        }
+      }
+    }
+  }
+}