gistfile1.rb

# Author: Toby DiPasquale <toby@cbcg.net>
require 'fileutils'
require 'rubygems'
require 'sequel'
require 'jekyll/filters'

module Jekyll
  module Typo
    class <<self
      include Jekyll::Filters
    end
    def self.process dbname
      FileUtils.mkdir_p '_posts'
      db = Sequel.sqlite dbname
      db[:contents].left_outer_join(:text_filters, :id => :text_filter_id).select(:contents.*,:text_filters__name.as(:filter)).each do |post|
        p post[:id]
        date = post[:published_at] || post[:created_at]
        name = 
          case post[:type]
          when "Article"
            [ date.strftime('%Y-%m-%d'),
              post[:permalink].strip ].join('-')
          when "Page"
            [ date.strftime('%Y-%m-%d'),
              'page',
              post[:name].gsub('/','-').strip].join('-')
          end
        # Can have more than one text filter in this field, but we just want
        # the first one for this
        name += '.' + (post[:filter] ? post[:filter].split(' ')[0] : 'html')

        File.open("_posts/#{name}", 'w') do |f|
          typo_attrs={}
          [:type, :published_at, :created_at,
           :updated_at, :keywords, :permalink, :name].each do |n|
            typo_attrs[n.to_s]=post[n]
          end
          f.puts({ 'layout'   => 'post',
                   'title'    => post[:title].to_s,
                   'typo_id'  => post[:id],
                   'published' => post[:published],
                   'typo_attrs' => typo_attrs
                 }.delete_if { |k, v| v.nil? || v == '' }.to_yaml)
          f.puts '---'
          f.puts post_filter(post[:body]).delete("\r")
          f.puts '----'
          f.puts post_filter(post[:extended]).delete("\r") if post[:extended]
        end
      end
    end

    def self.post_filter(content)
      c=content.dup
      c.gsub!(%r!<typo:code>(.*?)</typo:code>!m){|m|
        "\n<pre><code>"+xml_escape(Regexp.last_match[1])+"\n</code></pre>\n"
      }
      c.gsub!(%r!<typo:code lang="(.*?)">(.*?)</typo:code>!m,
              "\n{% highlight \\1 %}\n\\2\n{% endhighlight %}\n")
      c.gsub!(%r!<typo:hide>(.*?)</typo:hide>!m,
              "<span class=\"typo_hide\">\\1</span>")
      c
    end

  end   # module Typo
end   # module Jekyll

Jekyll::Typo.process(ARGV[0])