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Old 08-27-2010, 02:41 PM   #1
erion
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Autotagging with Calibre (command line)

Hello,

I am wondering if Calibre is able to set an epub's metadata using internet sources such as librarything, amazon, etc.
I know that the GUI is able to do that, however due to QT's certain limitations I am not really able to use it that way.
I am able to get book information using librarything and fetch-ebook-metadata, however I need a way to actually put the retrieved info into the .epub book itself.
An alternative would be to edit the xml data directly, however that gets a bit tedious if you happen to have a large library.

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Old 08-27-2010, 03:12 PM   #2
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Explore the rest of the command line interface it includes tools tp update metadata in book files and in the calibre db
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Old 08-27-2010, 03:41 PM   #3
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Hello,
Thank you for your reply.
Maybe it's just me, but I'm unable to find such an option. I saw the option to update metadata, but it's from an opf file, or from the command line itself via options (e.g. -t, -a, etc).
This would work nicely if the tools which get metadata information would return for example an .opf file, but currently I have to redirect the output of either librarything or fetch-ebook-metadata to the StdOut, open the file in a text editor and call ebook-meta with the appropriate parameters based on the content of the saved file.

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Old 08-27-2010, 03:49 PM   #4
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Librarything is hardly the most reliable source. I do have an account that I do not use because of some serious errors that the people in charge never felt like fixing after I reported a few times. Goodreads has librarians that actually respond and do fix errors.
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Old 08-27-2010, 03:59 PM   #5
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You'll have to write a small script to extract the info from the output of fetch-ebook-metadata shouldn't be too hard.
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Old 08-27-2010, 05:15 PM   #6
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Hello,
Thank you very much.
Somehow I knew it'll end that way.
Anyways, Calibre is by far the best!

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Old 08-28-2010, 07:34 AM   #7
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Hello,
My script is working fine now, except for the comment.
A book has usually a description which spawns more lines, but Microsoft's command line has a serious limitation whereas it interprets a new line character as a new command. This results in a comment tag which has the first line of the comment, while the rest is ignored.
Does Calibre have a special character which could signify a new line, and which is accepted by the standard windows command line interpreter (cmd)?

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Old 08-28-2010, 12:14 PM   #8
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why not redirect the output to a file?
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Old 08-28-2010, 12:50 PM   #9
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Hello,
You mean the input... No, sadly ebook-meta won't accept commands from the StdIn when I specify a file, e.g.
Code:
ebook-meta <file.txt
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Old 08-28-2010, 01:21 PM   #10
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No I meant write out the metadata as an opf file (it's a simple xml file) and use --from-opf option of ebook-meta
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Old 08-28-2010, 01:31 PM   #11
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Hello,

Oh I see. Is there a sample .opf file somewhere I could use to convert the output of fetch-ebook-metadata?

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Old 08-28-2010, 01:33 PM   #12
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You can always create one from within Calibre by using the Save to Disk command and ticking the option to create the .opf file.
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