The importadded plugin is useful when an existing collection is imported and the time when albums and items were added should be preserved.
The mtime of files that are imported into the library are assumed to represent the time when the items were originally added.
The item.added field is populated as follows:
This plugin can optionally be configured to also preserve mtimes:
importadded:
preserve_mtimes: yes # default: no
File modification times are preserved as follows:
Note that there is no album.mtime field in the database and that the mtime of album directories on disk aren’t preserved.