require 'set' module RailsGuides class Generator attr_reader :output, :view_path, :view, :guides_dir def initialize(output = nil) @guides_dir = File.join(File.dirname(__FILE__), '..') @output = output || File.join(@guides_dir, "output") unless ENV["ONLY"] FileUtils.rm_r(@output) if File.directory?(@output) FileUtils.mkdir(@output) end @view_path = File.join(@guides_dir, "source") end def generate guides = Dir.entries(view_path).find_all {|g| g =~ /textile$/ } if ENV["ONLY"] only = ENV["ONLY"].split(",").map{|x| x.strip }.map {|o| "#{o}.textile" } guides = guides.find_all {|g| only.include?(g) } puts "GENERATING ONLY #{guides.inspect}" end guides.each do |guide| generate_guide(guide) end # Copy images and css files to html directory FileUtils.cp_r File.join(guides_dir, 'images'), File.join(output, 'images') FileUtils.cp_r File.join(guides_dir, 'files'), File.join(output, 'files') end def generate_guide(guide) guide =~ /(.*?)(\.erb)?\.textile/ name = $1 puts "Generating #{name}" file = File.join(output, "#{name}.html") File.open(file, 'w') do |f| @view = ActionView::Base.new(view_path) @view.extend(Helpers) if guide =~ /\.erb\.textile/ # Generate the erb pages with textile formatting - e.g. index/authors result = view.render(:layout => 'layout', :file => guide) f.write textile(result) else body = File.read(File.join(view_path, guide)) body = set_header_section(body, @view) body = set_index(body, @view) result = view.render(:layout => 'layout', :text => textile(body)) f.write result warn_about_broken_links(result) if ENV.key?("WARN_BROKEN_LINKS") end end end def set_header_section(body, view) new_body = body.gsub(/(.*?)endprologue\./m, '').strip header = $1 header =~ /h2\.(.*)/ page_title = $1.strip header = textile(header) view.content_for(:page_title) { page_title.html_safe! } view.content_for(:header_section) { header.html_safe! } new_body end def set_index(body, view) index = <<-INDEX
#{es}
dirty_workaround_for_notextile_(\d+)
}) do |_| code_blocks[$1.to_i] end end def warn_about_broken_links(html) anchors = extract_anchors(html) check_fragment_identifiers(html, anchors) end def extract_anchors(html) # Textile generates headers with IDs computed from titles. anchors = Set.new html.scan(/