rosa-build/app/views/wiki/_compare.html.haml

- revert_button = capture do
  = link_to t("layout.wiki.revert_page#{action_name == 'revert' ? '' : 's'}"), '#', :class => "gollum-revert-button"

#compare-content
  - if action_name != 'revert' 
    %ul.actions
      %li.minibutton
        = form_tag revert_path(@project, @versions[0][0..6], @versions[1][0..6], @name),
            :name => "gollum-revert", :id => "gollum-revert-form" do
          = revert_button

  = render :partial => 'diff_data', :collection => @diffs, :as => :diff
  .spacer

#gollum-footer
  %ul.actions
    - if action_name != 'revert'
      %li.minibutton
        = revert_button
    %li.minibutton= link_to t("layout.wiki.back_to_top"), '#wiki'