class Jekyll::HamlPartialTag

Public Class Methods

new(tag_name, file, tokens) click to toggle source
Calls superclass method
# File lib/jekyll-haml-improved/tags/haml_partial.rb, line 6
def initialize(tag_name, file, tokens)
  super
  @file = file.strip
end

Public Instance Methods

render(context) click to toggle source
# File lib/jekyll-haml-improved/tags/haml_partial.rb, line 11
def render(context)
  includes_dir = File.join(context.registers[:site].source, '_includes')

  if File.symlink?(includes_dir)
    return "Includes directory '#{includes_dir}' cannot be a symlink"
  end

  if @file !~ /^[a-zA-Z0-9_\/\.-]+$/ || @file =~ /\.\// || @file =~ /\/\./
    return "Include file '#{@file}' contains invalid characters or sequences"
  end

  return "File must have \".haml\" extension" if @file !~ /\.haml$/

  Dir.chdir(includes_dir) do
    choices = Dir['**/*'].reject { |x| File.symlink?(x) }
    if choices.include?(@file)
      source     = File.read(@file)
      conversion = ::Haml::Engine.new(source).render.delete("\n")
      partial    = Liquid::Template.parse(conversion)
      begin
        return partial.render!(context)
      rescue => e
        print "Liquid Exception: #{e.message}"
        print "in #{self.data["layout"]}"
        e.backtrace.each do |backtrace|
          puts backtrace
        end
        abort("Build Failed")
      end

      context.stack do
        return partial.render(context)
      end
    else
      "Included file '#{@file}' not found in _includes directory"
    end
  end
end