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')
ev.message.each do |m|
  puts m
end
=> # FAILED!
=> # 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

• Accept a directory containing many .epub files for processing.
• When using the command line, have option to write results to a log file
• Format "ERROR" and "WARNING" output for more intuitive instructions.