Only load Ace on Snippets and file edit pages.

app/assets/javascripts/application.js

@@ -26,8 +26,6 @@
 /*= require bootstrap/tooltip */
 /*= require bootstrap/popover */
 /*= require select2 */
-/*= require ace-rails-ap */
-/*= require ace/ext-searchbox */
 /*= require underscore */
 /*= require dropzone */
 /*= require mousetrap */

app/assets/javascripts/blob_edit/blob_edit_bundle.js

+/*= require_tree . */
+
+(function() {
+  $(function() {
+    url = $(".js-edit-blob-form").data("relative-url-root");
+    url += $(".js-edit-blob-form").data("assets-prefix");
+
+    blob = new EditBlob(url, $('.js-edit-blob-form').data('blob-language'));
+    new NewCommitForm($('.js-edit-blob-form'));
+  });
+
+}).call(this);

app/assets/javascripts/lib/ace.js

+/*= require ace-rails-ap */
+/*= require ace/ext-searchbox */

app/assets/javascripts/snippet/snippet_bundle.js

+/*= require_tree . */
+
+(function() {
+  $(function() {
+    editor = ace.edit("editor")
+
+    $(".snippet-form-holder form").on('submit', function() {
+      $(".snippet-file-content").val(editor.getValue());
+    });
+  });
+
+}).call(this);

app/views/projects/blob/edit.html.haml

 - page_title "Edit", @blob.path, @ref
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_tag('lib/ace.js')
+  = page_specific_javascript_tag('blob_edit/blob_edit_bundle.js')
 - if @conflict
   .alert.alert-danger
@@ -16,14 +19,10 @@
       = link_to '#preview', 'data-preview-url' => namespace_project_preview_blob_path(@project.namespace, @project, @id) do
         = editing_preview_title(@blob.name)
-  = form_tag(namespace_project_update_blob_path(@project.namespace, @project, @id), method: :put, class: 'form-horizontal js-quick-submit js-requires-input js-edit-blob-form') do
+  = form_tag(namespace_project_update_blob_path(@project.namespace, @project, @id), method: :put, class: 'form-horizontal js-quick-submit js-requires-input js-edit-blob-form', data: {'relative-url-root' => "#{Rails.application.config.relative_url_root}", 'assets-prefix' => "#{Gitlab::Application.config.assets.prefix}", 'blob-language' => "#{@blob.language.try(:ace_mode)}" }) do
     = render 'projects/blob/editor', ref: @ref, path: @path, blob_data: @blob.data
     = render 'shared/new_commit_form', placeholder: "Update #{@blob.name}"
     = hidden_field_tag 'last_commit_sha', @last_commit_sha
     = hidden_field_tag 'content', '', id: "file-content"
     = hidden_field_tag 'from_merge_request_id', params[:from_merge_request_id]
     = render 'projects/commit_button', ref: @ref, cancel_path: namespace_project_blob_path(@project.namespace, @project, @id)
-
-:javascript
-  blob = new EditBlob(gon.relative_url_root + "#{Gitlab::Application.config.assets.prefix}", "#{@blob.language.try(:ace_mode)}")
-  new NewCommitForm($('.js-edit-blob-form'))

app/views/projects/blob/new.html.haml

 - page_title "New File", @path.presence, @ref
+- content_for :page_specific_javascripts do
+  = page_specific_javascript_tag('lib/ace.js')
+  = page_specific_javascript_tag('blob_edit/blob_edit_bundle.js')
 %h3.page-title
   New File
 .file-editor
-  = form_tag(namespace_project_create_blob_path(@project.namespace, @project, @id), method: :post, class: 'form-horizontal js-new-blob-form js-quick-submit js-requires-input') do
+  = form_tag(namespace_project_create_blob_path(@project.namespace, @project, @id), method: :post, class: 'form-horizontal js-edit-blob-form js-new-blob-form js-quick-submit js-requires-input', data: {'relative-url-root' => "#{Rails.application.config.relative_url_root}", 'assets-prefix' => "#{Gitlab::Application.config.assets.prefix}" }) do
     = render 'projects/blob/editor', ref: @ref
     = render 'shared/new_commit_form', placeholder: "Add new file"
     = hidden_field_tag 'content', '', id: 'file-content'
     = render 'projects/commit_button', ref: @ref,
               cancel_path: namespace_project_tree_path(@project.namespace, @project, @id)
-
-:javascript
-  blob = new EditBlob(gon.relative_url_root + "#{Gitlab::Application.config.assets.prefix}")
-  new NewCommitForm($('.js-new-blob-form'))

app/views/shared/snippets/_form.html.haml

+- content_for :page_specific_javascripts do
+  = page_specific_javascript_tag('lib/ace.js')
+  = page_specific_javascript_tag('snippet/snippet_bundle.js')
+
 .snippet-form-holder
   = form_for @snippet, url: url, html: { class: "form-horizontal snippet-form js-requires-input" } do |f|
     = form_errors(@snippet)
@@ -31,8 +35,3 @@
       - else
         = link_to "Cancel", snippets_path(@project), class: "btn btn-cancel"
-:javascript
-  var editor = ace.edit("editor");
-  $(".snippet-form-holder form").submit(function(){
-    $(".snippet-file-content").val(editor.getValue());
-  });

config/application.rb

@@ -87,6 +87,8 @@ module Gitlab
     config.assets.precompile << "profile/profile_bundle.js"
     config.assets.precompile << "boards/boards_bundle.js"
     config.assets.precompile << "boards/test_utils/simulate_drag.js"
+    config.assets.precompile << "blob_edit/blob_edit_bundle.js"
+    config.assets.precompile << "snippet/snippet_bundle.js"
     config.assets.precompile << "lib/utils/*.js"
     config.assets.precompile << "lib/*.js"
     config.assets.precompile << "u2f.js"