Using sitemap_generator gem and configuring it to generate pages from high_voltage

sitemap.rb

# Set the host name for URL creation
SitemapGenerator::Sitemap.default_host = 'http://www.pycosystems.com'

SitemapGenerator::Sitemap.create do
  # Put links creation logic here.
  #
  # The root path '/' and sitemap index file are added automatically for you.
  # Links are added to the Sitemap in the order they are specified.
  #
  # Usage: add(path, options={})
  #        (default options are used if you don't specify)
  #
  # Defaults: priority: 0.5, changefreq: 'weekly',
  #           lastmod: Time.now, host: default_host
  #
  # Examples:
  #
  # Add '/articles'
  #
  #   add articles_path, priority: 0.7, changefreq: 'daily'
  #
  # Add all articles:
  #
  #   Article.find_each do |article|
  #     add article_path(article), lastmod: article.updated_at
  #   end
  all_pages = Dir.entries(Rails.root.join('app', 'views', HighVoltage.content_path)).map { |page| Rails.application.routes.url_helpers.page_path(page.gsub('.html.erb', '')) if page =~ /.html.erb$/ && page !~ /coming_soon|home/ }.compact
  all_pages << Rails.application.routes.url_helpers.trainings_path

  all_pages.sort.each do |page|
    add(page, priority: 1.0, changefreq: 'weekly')
  end
end