redmine/app/views/repositories/_breadcrumbs.html.erb

<%
dirs = path.split('/')
if 'file' == kind
    filename = dirs.pop
end

breadcrumbs = []
breadcrumbs << link_to(
  @repository.identifier.presence || 'root', :action => 'show',
  :id => @project, :repository_id => @repository.identifier_param,
  :path => nil, :rev => @rev)
link_path = ''

dirs.each do |dir|
    next if dir.blank?

    link_path << '/' unless link_path.empty?
    link_path << "#{dir}"
    breadcrumbs << link_to(dir, :action => 'show', :id => @project,
      :repository_id => @repository.identifier_param,
      :path => to_path_param(link_path), :rev => @rev)
end
if filename
    breadcrumbs << link_to(filename, :action => 'entry', :id => @project,
      :repository_id => @repository.identifier_param,
      :path => to_path_param("#{link_path}/#{filename}"), :rev => @rev)
end
%>
<%= breadcrumbs.join(tag.span('/', :class => 'separator')).html_safe -%>
<%
  # @rev is revsion or Git and Mercurial branch or tag.
  # For Mercurial *tip*, @rev and @changeset are nil.
  rev_text = @changeset.nil? ? @rev : format_revision(@changeset)
%>
<%= " @ #{rev_text}" unless rev_text.blank? -%>
<% html_title(with_leading_slash(path)) %>