After a large import, many of the new books did not appear in my library.
The 'Check library' tool, shows many 'Extra titles'.
When I look at the Calibre library folder structure in the Finder (I am on Mac OSX), I book folders with proper book files but no opf metadata file.
I assume that the missing books, the Extra titles and the folders without opf all correspond to the same thing.
Running 'Restore library' did not help.
Running 'Add books' again on some original files did bring back their missing books.
To get rid of the 'Extra books', I tried 'Moving library to new location', hoping that the folders without opf would be left behind. Unfortunately, they were copied as well.
I have two questions:
(1) How can I clear a Calibre library folder structure from all folders without opf files, which seem to be parasitic folders since the books they contain do do not appear in the GUI?
(2) If such folders cannot be easily removed from within Calibre (ie: without writing my own shell script), is there a way to create or to recreate the opf files?
Your answers and recommendations will be greatly appreciated, as they will condition what I do to restore my library. Thanks in advance! W.
PS - the following threads discuss similar issues
https://www.mobileread.com/forums/sho...d.php?t=255818
https://www.mobileread.com/forums/sho...d.php?t=256497