Can I use Composer to migrate cabinets, folders, or content from one repository to another?
We don’t recommend using Composer in this fashion because Composer was designed for application development and not data migration. Therefore, if you have a lot of cabinets, folders, and content, we cannot guarantee good migration performance. If the folders and content is related to application development and setup, such as an XML Application Folder with supporting documents, it is acceptable to import those into a Composer project.