Redmine/app/views/repositories/diff.rhtml

<h2><%= l(:label_revision) %> <%= format_revision(@rev) %> <%= @path.gsub(/^.*\//, '') %></h2>

<!-- Choose view type -->
<% form_tag({ :controller => 'repositories', :action => 'diff'}, :method => 'get') do %>
  <% params.each do |k, p| %>
    <% if k != "type" %>
      <%= hidden_field_tag(k,p) %>
    <% end %>
    <% end %>
  <p><label><%= l(:label_view_diff) %></label>
  <%= select_tag 'type', options_for_select([[l(:label_diff_inline), "inline"], [l(:label_diff_side_by_side), "sbs"]], @diff_type), :onchange => "if (this.value != '') {this.form.submit()}" %></p>
<% end %>

<% cache(@cache_key) do -%>
<% @diff.each do |table_file| -%>
<div class="autoscroll">
<% if @diff_type == 'sbs' -%>
<table class="filecontent CodeRay">
<thead>
<tr><th colspan="4" class="filename"><%= table_file.file_name %></th></tr>
<tr>
  <th colspan="2">@<%= format_revision @rev %></th>
  <th colspan="2">@<%= format_revision @rev_to %></th>
</tr>
</thead>
<tbody>
<% prev_line_left, prev_line_right = nil, nil -%>
<% table_file.keys.sort.each do |key| -%>
<% if prev_line_left && prev_line_right && (table_file[key].nb_line_left != prev_line_left+1) && (table_file[key].nb_line_right != prev_line_right+1) -%>
<tr class="spacing"><td colspan="4"></td></tr>
<% end -%>
<tr>
  <th class="line-num"><%= table_file[key].nb_line_left %></th>
  <td class="line-code <%= table_file[key].type_diff_left %>">
    <pre><%=to_utf8 table_file[key].line_left %></pre>
  </td>
  <th class="line-num"><%= table_file[key].nb_line_right %></th>
  <td class="line-code <%= table_file[key].type_diff_right %>">
    <pre><%=to_utf8 table_file[key].line_right %></pre>
  </td>
</tr>
<% prev_line_left, prev_line_right = table_file[key].nb_line_left.to_i, table_file[key].nb_line_right.to_i -%>
<% end -%>
</tbody>
</table>

<% else -%>
<table class="filecontent CodeRay">
<thead>
<tr><th colspan="3" class="filename"><%= table_file.file_name %></th></tr>
<tr>
  <th>@<%= format_revision @rev %></th>
  <th>@<%= format_revision @rev_to %></th>
  <th></th>
</tr>
</thead>
<tbody>
<% prev_line_left, prev_line_right = nil, nil -%>
<% table_file.keys.sort.each do |key, line| %>
<% if prev_line_left && prev_line_right && (table_file[key].nb_line_left != prev_line_left+1) && (table_file[key].nb_line_right != prev_line_right+1) -%>
<tr class="spacing"><td colspan="3"></td></tr>
<% end -%>
<tr>
  <th class="line-num"><%= table_file[key].nb_line_left %></th>
  <th class="line-num"><%= table_file[key].nb_line_right %></th>
  <% if table_file[key].line_left.empty? -%>
  <td class="line-code <%= table_file[key].type_diff_right %>">
    <pre><%=to_utf8 table_file[key].line_right %></pre>
  </td>
  <% else -%>
  <td class="line-code <%= table_file[key].type_diff_left %>">
    <pre><%=to_utf8 table_file[key].line_left %></pre>
  </td>
  <% end -%>
</tr>
<% prev_line_left = table_file[key].nb_line_left.to_i if table_file[key].nb_line_left.to_i > 0 -%>
<% prev_line_right = table_file[key].nb_line_right.to_i if table_file[key].nb_line_right.to_i > 0 -%>
<% end -%>
</tbody>
</table>
<% end -%>

</div>
<% end -%>
<% end -%>

<% html_title(with_leading_slash(@path), 'Diff') -%>

<% content_for :header_tags do %>
<%= stylesheet_link_tag "scm" %>
<% end %>