Unify Duplicate Libraries (Mac OS X)

chrubble · 01-15-2021, 07:33 AM

Hi,

Somehow, at some point, I've switch the location of my library from one virtual Google cloud drive to another. So, now in my Calibre library I have several hundred new books which are fine, but older books are listed but have no content in their folders except for a metadata file. I have located the original library and now I want to merge/unify the libraries to ensure that the ebook files all appear in the correct folders - I have a couple of thousand books, so I don't want to even think about doing this in a manual way.

Does anyone have tips on how I can combine the libraries and not lose content?

Thanks!

chrubble

Sirtel · 01-15-2021, 11:20 AM

Google Drive is not compatible with Calibre. It destroys your library. That's why you have empty books. So, the first thing to do is to stop using Google Drive for your library.

chrubble · 01-15-2021, 11:38 AM

Thanks, Sirtel.

QUOTE=Sirtel;4082471]Google Drive is not compatible with Calibre. It destroys your library. That's why you have empty books. So, the first thing to do is to stop using Google Drive for your library.[/QUOTE]

gbm · 01-15-2021, 01:00 PM

Quote:

Originally Posted by chrubble

Thanks, Sirtel.

QUOTE=Sirtel;4082471]Google Drive is not compatible with Calibre. It destroys your library. That's why you have empty books. So, the first thing to do is to stop using Google Drive for your library.

[/QUOTE]

From the calibre FAQ's

Quote:

Even with these tools there is danger of data corruption/loss, so only do this if you are willing to live with that risk. In particular, be aware that Google Drive is incompatible with calibre, if you put your calibre library in Google Drive, you will suffer data loss. See this thread for details.

I do not know if the possible solutions work.

luck
bernie

chrubble · 01-16-2021, 01:35 AM

Thanks, Bernie.

So, with the knowledge that I have to take my library out of the Google Drive, is there any way to compare/combine the two sets of folders to create a unified library?

Many thanks,

chrubble

From the calibre FAQ's

I do not know if the possible solutions work.

luck
bernie[/QUOTE]

kovidgoyal · 01-16-2021, 01:41 AM

add your second folder as anther library in calibre, and then use the copy to library function to copy the books from one library to another. You can control how duplicates are handled via the options in Preferences->Adding books

chrubble · 01-16-2021, 02:07 AM

Thank you, Kovid!

Quote:

Originally Posted by kovidgoyal

add your second folder as anther library in calibre, and then use the copy to library function to copy the books from one library to another. You can control how duplicates are handled via the options in Preferences->Adding books

01-15-2021, 07:33 AM	#1
chrubble Member Posts: 15 Karma: 10 Join Date: Jan 2014 Device: Kobo	Unify Duplicate Libraries (Mac OS X) Hi, Somehow, at some point, I've switch the location of my library from one virtual Google cloud drive to another. So, now in my Calibre library I have several hundred new books which are fine, but older books are listed but have no content in their folders except for a metadata file. I have located the original library and now I want to merge/unify the libraries to ensure that the ebook files all appear in the correct folders - I have a couple of thousand books, so I don't want to even think about doing this in a manual way. Does anyone have tips on how I can combine the libraries and not lose content? Thanks! chrubble

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01-15-2021, 11:20 AM	#2
Sirtel Grand Sorcerer Posts: 10,372 Karma: 225099840 Join Date: Jan 2014 Location: Estonia Device: Kobo Sage & Libra 2	Google Drive is not compatible with Calibre. It destroys your library. That's why you have empty books. So, the first thing to do is to stop using Google Drive for your library.

01-15-2021, 11:38 AM	#3
chrubble Member Posts: 15 Karma: 10 Join Date: Jan 2014 Device: Kobo	Thanks, Sirtel. QUOTE=Sirtel;4082471]Google Drive is not compatible with Calibre. It destroys your library. That's why you have empty books. So, the first thing to do is to stop using Google Drive for your library.[/QUOTE]

01-16-2021, 01:35 AM	#5
chrubble Member Posts: 15 Karma: 10 Join Date: Jan 2014 Device: Kobo	Thanks, Bernie. So, with the knowledge that I have to take my library out of the Google Drive, is there any way to compare/combine the two sets of folders to create a unified library? Many thanks, chrubble From the calibre FAQ's I do not know if the possible solutions work. luck bernie[/QUOTE]

01-16-2021, 01:41 AM	#6
kovidgoyal creator of calibre Posts: 43,973 Karma: 22669822 Join Date: Oct 2006 Location: Mumbai, India Device: Various	add your second folder as anther library in calibre, and then use the copy to library function to copy the books from one library to another. You can control how duplicates are handled via the options in Preferences->Adding books