Chaptered usage updates

[Quietus]

Unsure if you want all these changes or if you want to handle these differently. At present, in chaptered mode there's an error when adding the cover art (#208), because it tries to do so to the base filename instead of the chapter files. Options are:

1. Add the cover art to every chapter.
2. Don't add the cover art to any file and leave the cover art in the folder instead.

I chose option 2.

The additional file cleanup should probably not use mv -v (verbose move)

The flattening at lines 540-543 mirrors the one done in #207 which applied to single-file mode only.

[Maloupi]

Hi,
Thank you :-)
I understand the move of jpg file to complete dir but why moving voucher and chapters ?

[Quietus]

They're all part of the files from using audible-cli and relate to that book. If I'm using the -C/--complete_dir flag, I want all the files related to that book to be moved to the complete_dir (for archival).

With respect to the issue you raised, all I've changed is not trying to add the cover art to the output file (these are the changes at line 291 and 972). The jpg is already copied to the output folder in lines 795-809

[Maloupi]

I understand :-) Thank you