gitlab-org--gitlab-foss/app/assets/javascripts/lib/ace/ace_config_paths.js.erb

<%
ace_gem_path = Bundler.rubygems.find_name('ace-rails-ap').first.full_gem_path
ace_workers = Dir[ace_gem_path + '/vendor/assets/javascripts/ace/worker-*.js'].sort.map do |file|
  File.basename(file, '.js').sub(/^worker-/, '')
end
ace_modes = Dir[ace_gem_path + '/vendor/assets/javascripts/ace/mode-*.js'].sort.map do |file|
  File.basename(file, '.js').sub(/^mode-/, '')
end
%>
// Lazy-load configuration when ace.edit is called
(function() {
  var basePath;
  var ace = window.ace;
  var edit = ace.edit;
  ace.edit = function() {
    window.gon = window.gon || {};
    basePath = (window.gon.relative_url_root || '').replace(/\/$/, '') + '/assets/ace';
    ace.config.set('basePath', basePath);

    // configure paths for all worker modules
<% ace_workers.each do |worker| %>
    ace.config.setModuleUrl('ace/mode/<%= worker %>_worker', basePath + '/<%= File.basename(asset_path("ace/worker-#{worker}.js")) %>');
<% end %>

    // configure paths for all mode modules
<% ace_modes.each do |mode| %>
    ace.config.setModuleUrl('ace/mode/<%= mode %>', basePath + '/<%= File.basename(asset_path("ace/mode-#{mode}.js")) %>');
<% end %>

    // restore original method
    ace.edit = edit;
    return ace.edit.apply(ace, arguments);
  };
})();