Fix sourcegraph integration

Add missing decorator + selectors to fix sourcegraoh ingtegration

app/assets/javascripts/blob/components/blob_header.vue

@@ -81,7 +81,7 @@ export default {
       </blob-filepath>
     </div>
 
-    <div class="gl-display-none gl-sm-display-flex">
+    <div class="gl-display-none gl-sm-display-flex file-actions">
       <viewer-switcher v-if="showViewerSwitcher" v-model="viewer" />
 
       <slot name="actions"></slot>

app/assets/javascripts/repository/components/blob_controls.vue

@@ -3,6 +3,7 @@ import { GlButton } from '@gitlab/ui';
 import { __ } from '~/locale';
 import createFlash from '~/flash';
 import getRefMixin from '~/repository/mixins/get_ref';
+import initSourcegraph from '~/sourcegraph';
 import { updateElementsVisibility } from '../utils/dom';
 import blobControlsQuery from '../queries/blob_controls.query.graphql';
 
@@ -76,6 +77,9 @@ export default {
     showBlobControls(shouldShow) {
       updateElementsVisibility('.tree-controls', !shouldShow);
     },
+    blobInfo() {
+      initSourcegraph();
+    },
   },
 };
 </script>
@@ -97,6 +101,7 @@ export default {
       data-testid="permalink"
       :href="blobInfo.permalinkPath"
       :class="$options.buttonClassList"
+      class="js-data-file-blob-permalink-url"
     >
       {{ $options.i18n.permalink }}
     </gl-button>

app/assets/javascripts/vue_shared/components/source_viewer.vue

@@ -2,7 +2,6 @@
 import { GlSafeHtmlDirective } from '@gitlab/ui';
 import LineNumbers from '~/vue_shared/components/line_numbers.vue';
 import { sanitize } from '~/lib/dompurify';
-import '~/sourcegraph/load';
 
 const LINE_SELECT_CLASS_NAME = 'hll';
 

app/controllers/projects/tree_controller.rb

@@ -6,6 +6,7 @@ class Projects::TreeController < Projects::ApplicationController
   include CreatesCommit
   include ActionView::Helpers::SanitizeHelper
   include RedirectsForMissingPathOnTree
+  include SourcegraphDecorator
 
   around_action :allow_gitaly_ref_name_caching, only: [:show]
 

app/controllers/projects_controller.rb

@@ -10,6 +10,7 @@ class ProjectsController < Projects::ApplicationController
   include ImportUrlParams
   include FiltersEvents
   include WorkItemsHierarchy
+  include SourcegraphDecorator
 
   prepend_before_action(only: [:show]) { authenticate_sessionless_user!(:rss) }
 

spec/frontend/blob/components/__snapshots__/blob_header_spec.js.snap

@@ -17,7 +17,7 @@ exports[`Blob Header Default Actions rendering matches the snapshot 1`] = `
   </div>
    
   <div
-    class="gl-display-none gl-sm-display-flex"
+    class="gl-display-none gl-sm-display-flex file-actions"
   >
     <viewer-switcher-stub
       value="simple"