Contents

module Bunch
  class Rack
    def initialize(path, opts={})
      @root = Pathname.new(path)
      @headers = {}

      if opts.delete(:no_cache)
        @headers['Cache-Control'] = 'private, max-age=0, must-revalidate'
        @headers['Pragma'] = 'no-cache'
        @headers['Expires'] = 'Thu, 01 Dec 1994 16:00:00 GMT'
      end
    end

    def call(env)
      path = @root.join(env['PATH_INFO'].sub(/^\//, '')).to_s
      type = MIME::Types.type_for(path).first || 'text/plain'

      [200, headers(type), [generate(path)]]
    rescue => e
      [500, headers('text/plain'), [error_log(e)]]
    end

    private
      def headers(mime_type)
        @headers.merge('Content-Type' => mime_type.to_s)
      end

      def generate(path)
        case
        when File.exist?(path)
          contents(path)
        when File.exist?(chopped_path = path.sub(%r(\.[^.]*$), ''))
          contents(chopped_path)
        when File.basename(path).start_with?('all.')
          contents(File.dirname(path))
        when (path_w_different_extension = Dir["#{chopped_path}.*"].first)
          contents(path_w_different_extension)
        else
          raise Errno::ENOENT, path.to_s
        end
      end

      def contents(path)
        Bunch::Tree(path.to_s).contents
      end

      def error_log(e)
        "#{e.class}: #{e.message}\n  #{e.backtrace.join("\n  ")}"
      end
  end
end

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
bunch-0.0.4	lib/bunch/rack.rb