model

class Post

  @@posts ||= []

  attr_accessor :body, :header

  def initialize (doc, slug)
    self.header, self.body = doc.split("\n...\n")
    self.header = YAML.load(header)
    self.header['slug'] = slug + '.html'
    @@posts << self
  end

  def all
    @@posts
  end

end

rakefile

def collect_files_from(dir)
  files = Dir[dir+'*.text']
  files.each do |file| 
    slug = File.basename(file, ".text")
    file = File.read(file)
    return Post.new(file, slug)
  end
end