Autotest.add_hook :initialize do |at|
  ignore = %w[.git examples ext pkg .DS_Store CHANGELOG LICENSE VERSION.yml README.rdoc .autotest Rakefile blather.gemspec]

  ignore.each { |exception| at.add_exception(exception) }

  at.clear_mappings

  at.add_mapping(%r%^spec/.*_spec.rb$%) { |filename, _| filename }
  at.add_mapping(%r%^lib/(.*)\.rb$%) { |_, m| ["spec/#{m[1]}_spec.rb"] }
  at.add_mapping(%r%^spec/(spec_helper|shared/.*)\.rb$%) { 
    at.files_matching %r%^spec/.*_spec\.rb$%
  }
end