rustic currently saves the file # of links, as restic does. Other support for hard links is missing.

Restic uses the information of # of links and more (like device id) to (try to) restore hard links during restore. This so far only works for files within the restore and poses other problems, see restic/restic#3041 (comment).

Correct treatment of hard links during backup and restore is hard, but should be better supported. For instance:

• Save more/better information in the metadata during backup.
• Provide various options in restore to suit user's needs for restoring hard links.