create_month_index.rake

task :create_month_index, :year, :month do |t,args|
  args.with_defaults(:year => Time.now.strftime('%Y'), :month => Time.now.strftime('%m'))
  year = args.year
  month = args.month

  # ... snip ...

  Webby::Builder.create(fn, :from => tmpl,
        :locals => {:title => month, :directory => dir, :dirty => ("#{year}.#{month}" == Time.now.strftime('%Y.%m'))})
  end
end

create_year_index.rake

task :create_year_index, :year do |t,args|
  args.with_defaults(:year => Time.now.strftime('%Y'))
  year = args.year

  # ... snip ...

  Webby::Builder.create(fn, :from => tmpl,
        :locals => {:title => year, :directory => dir, :dirty => (year == Time.now.strftime('%Y'))})
  end
end

import_posts.rake

desc "Import blog posts"
task :import_posts, :dbfile do |t,args|
  require 'active_record'

  ActiveRecord::Base.establish_connection(
    :adapter => 'sqlite3',
    :dbfile => args.dbfile
  )

  class Content < ActiveRecord::Base; end
  class Page < Content; end
  class Article < Content; end

  Article.find(:all, :conditions => { :published => true }).each do |post|
    published_at = post.published_at

    page = ::Webby::Resources.basename(post.title).to_url
    title = post.title
    dir = "#{Webby.site.blog_dir}/#{published_at.strftime('%Y/%m/%d')}"

    ::Webby.site.args = OpenStruct.new(:raw => [title], :page => page, :title => title, :dir => '')

    year = published_at.strftime('%Y')
    month = published_at.strftime('%m')

    Rake::Task['blog:create_year_index'].execute(Rake::TaskArguments.new([:year], [year]))
    Rake::Task['blog:create_month_index'].execute(Rake::TaskArguments.new([:year, :month], [year, month]))

    page = File.join(dir, File.basename(page))

    # Colons in the title isn't correct YAML
    title = "\"#{title}\"" if title =~ /:/

    body = post.body

    # Convert the Ultraviolet textfilter blocks
    body.gsub!(/<typo:ultraviolet(.*?)>/, '<%% uv\1 do -%>')
    body.gsub!('</typo:ultraviolet>', '<%% end -%>')
    body.gsub!(/<%% uv (.*) do -%>/) do
      s = $1.split(' ').map {|i| i.gsub(/(.*)="(.*)[/) { ](#$1) => '#$2'" }}.join(', ')
      s.sub!('linenumber', 'line_numbers')
      "<%% uv #{s} do -%>"
    end

    # Remove extra carriage returns from the SQLite3 string.
    body.gsub!("\r", '')

    Webby::Builder.create(page,
                          :from => File.join(Webby.site.template_dir, 'blog', 'post.erb'),
                          :locals => {
                             :title => title,
                             :directory => dir,
                             :body => body,
                             :created_at => published_at.to_y })
  end
end

template.erb

title:      <%= title %>
created_at: <%= Time.now.to_y %>
filter:     erb
<%= 'dirty:      true' if dirty %>