# File lib/reap/rdoc_task.rb, line 36
  def run
    if !File.exists?(@main) or File.directory?(@main)
      warn "Specified RDoc Main file #{@main} not found. Ignored."
      @main = nil
    end
    rdoc_dir = File.expand_path(@dir)
    if FileTest.directory?(@dir)
      print "Directory '#{@dir}' already exists. Clobber? [y/N] "
      until inp = $stdin.gets[0,1] ; sleep 1 ; end ; puts
      if (inp || 'y').downcase == 'y'
        puts "Removing old directory '#{rdoc_dir}'..."
        #FileUtils.mkdir_p(".trash") unless FileTest.directory?(".trash")
        #trashdir = ".trash/#{File.basename(@dir)}"
        #FileUtils.rm_r(trashdir) if FileTest.exists?(trashdir)
        #FileUtils.mv(@dir, trashdir)
        FileUtils.rm_r(@dir)
      else
        puts "Reap rdoc task canceled."
        return nil
      end
    end
    rdoc_target = "#{rdoc_dir}/index.html"
    # rdoc files
    rdoc_files = FileList.new
    rdoc_files.include(*@include)
    rdoc_files.exclude(*@exclude)
    rdoc_files = '"' << rdoc_files.join('" "') << '"'
    # build options string
    build = @options.dup
    build << "--main '#{@main}'" if @main
    build << "--title '#{@title}'" if @title
    build << "-T '#{@template}'" if @template
    rdoc_opts = build.join(' ')
    # do it!
    puts "Reap is shelling work out to RDoc..."
    puts %{rdoc -o #{@dir} #{rdoc_opts}}
    sh %{rdoc -o #{rdoc_dir} #{rdoc_opts} #{rdoc_files}}
  end