epubValidator - Check your EPUB Books

This library will check that your .epub files are valid IDPF EPUB v2.x documents and return a successful or error message. It can be called as a Ruby library, or invoked from the command line.

For more about the IDPF see http://idpf.org

For more about the epubcheck tool see http://code.google.com/p/epubcheck/

Setup

gem install epub_validator

Basic Usage

Sample usage and output:

require 'epub_validator'

ev = EpubValidator.check('/path/to/sample.epub')
puts ev[:valid]
ev[:message].each do |m|
  puts m
end
=> 0
=> ERROR: OPS/toc.ncx(21): 'OPS/': referenced resource exists, but not declared in the OPF file

Now from the command line:

$ epub_validator /path/to/sample.epub

Checking....FAILED!

ERROR: OPS/toc.ncx(21): 'OPS/': referenced resource exists, but not declared in the OPF file

Requirements

Java must be installed and set in your PATH.

Future Features

• Command line: accept directory containing many .epub files for processing.
• Command line: have switch for writing results to log file
• Format "ERROR" and "WARNING" output for more intuitive instructions.