Jekyll plugin for generating tag index files and directories.

tab.rb

module Jekyll

  class TagIndex < Page
    def initialize(site, base, dir, tag)
      @site = site
      @base = base
      @dir = dir
      @name = 'index.html'

      self.process(@name)
      self.data = {}
      self.data['layout'] = 'tag_index'
      self.data['tag'] = tag

      self.data['related'] = []
      site.tags[tag].each do |post|
        post.tags.each do |rel| 
          self.data['related'].push(rel)
        end
      end
      self.data['related'] = self.data['related'].uniq

      tag_title_prefix = site.config['tag_title_prefix'] || 'Tag: '
      self.data['title'] = "#{tag_title_prefix}#{tag}"
    end
  end

  class TagList < Page
    def initialize(site,  base, dir, tags)
      @site = site
      @base = base
      @dir = dir
      @name = 'index.html'

      self.process(@name)
      self.data = {}
      self.data['layout'] = 'tag_list'
      self.data['tags'] = tags

      self.data['title'] = site.config['tag_index_title'] || 'All Tags'
    end
  end

  class TagGenerator < Generator
    safe true
    
    def generate(site)
      if site.layouts.key? 'tag_index'
        dir = site.config['tag_dir'] || 'tags'
        site.tags.keys.each do |tag|
          write_tag_index(site, File.join(dir, tag.gsub(/\s/, "-").gsub(/[^\w-]/, '').downcase), tag)
        end
      end

      if site.layouts.key? 'tag_list'
        dir = site.config['tag_dir'] || 'tags'
        write_tag_list(site, dir, site.tags.keys.sort)
      end
    end
  
    def write_tag_index(site, dir, tag)
      index = TagIndex.new(site, site.source, dir, tag)
      index.render(site.layouts, site.site_payload)
      index.write(site.dest)
      site.static_files << index
    end

    def write_tag_list(site, dir, tags)
      index = TagList.new(site, site.source, dir, tags)
      index.render(site.layouts, site.site_payload)
      index.write(site.dest)
      site.static_files << index
    end
  end

end

This is a fork of Jose Gonzalez' tag.rb plugin.