10-08-2011, 05:38 PM
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#1 |
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Evangelist
  
Posts: 456
Karma: 1044878
Join Date: Apr 2009
Device: Kindle Paperwhite 4
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Criteria to determine if book is already on device?
I'm curious: is the criteria that Calibre uses to determine if books are already on the device identified anywhere? (I'd even find "in the code" useful as an answer if someone can point me at the right file/function.
 )Sometimes Calibre can match two books up, despite differences, while other times byte-for-byte identical ePubs aren't matched. Which leaves me perplexed, to say the least... |
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10-08-2011, 10:16 PM
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#2 |
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creator of calibre
Posts: 43,935
Karma: 22669822
Join Date: Oct 2006
Location: Mumbai, India
Device: Various
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calibre uses metadata matching. i.e it uses the uuid, title and author metadata fields. IIRC the matching code i in gui2/device.py but I may be misremembering.
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10-09-2011, 03:34 AM
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#3 |
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Grand Sorcerer
Posts: 11,764
Karma: 7029857
Join Date: Jan 2010
Location: Notts, England
Device: Kobo Libra 2
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There is a fairly detailed discussion of this in the second post of thread https://www.mobileread.com/forums/sho...d.php?t=134963
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