class Hoe

def define_spec
  self.spec = Gem::Specification.new do |s|
    dirs = Dir['lib']
    manifest = read_manifest
    abort [
           "Manifest is missing or couldn't be read.",
           "The Manifest is kind of a big deal.",
           "Maybe you're using a gem packaged by a linux project.",
           "It seems like they enjoy breaking other people's code."
           ].join "\n" unless manifest
    s.name                 = name
    s.version              = version if version
    s.summary              = summary
    s.email                = email
    s.homepage             = case urls
                             when Hash then
                               urls["home"] || urls.values.first
                             when Array then
                               urls.first
                             else
                               raise "unknown urls format: #{urls.inspect}"
                             end
    s.rubyforge_project    = rubyforge_name
    s.description          = description
    s.files                = manifest
    s.executables          = s.files.grep(/^bin/) { |f| File.basename(f) }
    s.bindir               = "bin"
    s.require_paths        = dirs unless dirs.empty?
    s.rdoc_options         = ['--main', readme_file]
    s.post_install_message = post_install_message
    s.test_files           = Dir[*self.test_globs]
    missing "Manifest.txt" if s.files.empty?
    case author
    when Array
      s.authors = author
    else
      s.author  = author
    end
    s.extra_rdoc_files += s.files.grep(/(txt|rdoc)$/)
    s.extra_rdoc_files.reject! { |f| f =~ %r%^(test|spec|vendor|template|data|tmp)/% }
    s.extra_rdoc_files += @extra_rdoc_files
  end
  unless self.version then
    version    = nil
    version_re = /VERSION += +([\"\'])([\d][\w\.]+)\1/
    spec.files.each do |file|
      next unless File.exist? file
      version = File.read_utf(file)[version_re, 2] rescue nil
      break if version
    end
    spec.version = self.version = version if version
    unless self.version then
      spec.version = self.version = "0.borked"
      warn "** Add 'VERSION = \"x.y.z\"' to your code,"
      warn "   add a version to your hoe spec,"
      warn "   or fix your Manifest.txt"
    end
  end
  # Do any extra stuff the user wants
  spec_extras.each do |msg, val|
    case val
    when Proc
      val.call spec.send(msg)
    else
      spec.send "#{msg}=", val
    end
  end
end