Awesome

mobi

A Ruby Gem that reads MOBI metadata.

Ruby

Compatible up to ruby 2.0.0p0.

I haven't tested beyond that version, but it should work.

Installation

gem install mobi

Usage

Creating a Mobi::Metadata object

Mobi::Metadata.new(File.open('/path/to/file.mobi'))

A handy convenience method to do the exact same thing

Mobi.metadata File.open('/path/to/file.mobi')

Getting metadata information is as simple as:

metadata = Mobi.metadata File.open('/path/to/fellowship_of_the_ring.mobi')
#=> #<Mobi::Metadata>
metadata.author
#=> "J.R.R. Tolkien"

Supported metadata options are:

asin
author
contributor
description
imprint
isbn
publisher
published_at
review
rights
source
subject
subject_code
title
type
version

You can also drill down and get the PalmDOC and MOBI header details:

palm_doc_header = metadata.palm_doc_header
#=> #<Mobi::Header::PalmDocHeader>
palm_doc_header.raw_compression_type
#=> 2
palm_doc_header.compression_type
#=> "PalmDOC"

mobi_header = metadata.mobi_header
#=> #<Mobi::Header::MobiHeader>
mobi_header.raw_mobi_type
#=> 2
mobi_header.mobi_type
#=> "MOBIpocket Book"

See the source for more methods.

Thanks

Calibre open source project. I ripped off the idea of a Stream Slicer and got a better understanding of MOBI files from their code base. Check them out at http://calibre-ebook.com

Contributing to mobi

Check out the latest master to make sure the feature hasn't been implemented or the bug hasn't been fixed yet
Check out the issue tracker to make sure someone already hasn't requested it and/or contributed it
Fork the project
Start a feature/bugfix branch
Commit and push until you are happy with your contribution
Make sure to add tests for it. This is important so I don't break it in a future version unintentionally.
Please try not to mess with the Rakefile, version, or history. If you want to have your own version, or is otherwise necessary, that is fine, but please isolate to its own commit so I can cherry-pick around it.