ruby script/plugin install git://github.com/adamsalter/sitemap_generator-plugin.git

1. Install plugin as normal

./script/plugin install git://github.com/adamsalter/sitemap_generator-plugin.git

2. Installation should create a 'config/sitemap.rb' file which will contain your logic for generation of the Sitemap files. (If you want to recreate this file manually run `rake sitemap:install`)

3. Run `rake sitemap:refresh` as needed to create Sitemap files. This will also ping all the major search engines.

Sitemaps with many urls (100,000+) take quite a long time to generate, so if you need to refresh your Sitemaps regularly you can set the rake task up as a cron job.

4. Finally, and optionally, add the following to your robots.txt file.

Sitemap: HOSTNAME/sitemap_index.xml.gz

The robots.txt Sitemap URL should be the complete URL to the Sitemap index, such as: `http://www.example.org/sitemap_index.xml.gz`

More details available in README file on GitHub.

Example 'config/sitemap.rb'

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

SitemapGenerator::Sitemap.add_links do |sitemap|
  # Put links creation logic here.
  #
  # The root path '/' and sitemap index file are added automatically.
  # Links are added to the Sitemap in the order they are specified.
  #
  # Usage: sitemap.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'
  sitemap.add articles_path, :priority => 0.7, :changefreq => 'daily'

  # add all individual articles
  Article.find(:all).each do |a|
    sitemap.add article_path(a), :lastmod => a.updated_at
  end

  # add merchant path
  sitemap.add '/purchase', :priority => 0.7, :host => "https://www.example.com"

end

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