Add extra data for RenderBlob json

Signed-off-by: Dmitriy Zaporozhets <dmitriy.zaporozhets@gmail.com>

app/controllers/concerns/renders_blob.rb

@@ -14,7 +14,11 @@ module RendersBlob
     return render_404 unless viewer
 
     render json: {
-      html: view_to_html_string("projects/blob/_viewer", viewer: viewer, load_async: false)
+      html: view_to_html_string("projects/blob/_viewer", viewer: viewer, load_async: false),
+      plain: blob.data,
+      name: blob.name,
+      size: blob.size,
+      mime_type: blob.mime_type
     }
   end
 

spec/controllers/projects/blob_controller_spec.rb

@@ -35,6 +35,26 @@ describe Projects::BlobController do
       end
     end
 
+    context 'with file path and JSON format' do
+      context "valid branch, valid file" do
+        let(:id) { 'master/README.md' }
+
+        before do
+          get(:show,
+              namespace_id: project.namespace,
+              project_id: project,
+              id: id,
+              format: :json)
+        end
+
+        it do
+          expect(response).to be_ok
+          expect(json_response).to have_key 'html'
+          expect(json_response).to have_key 'plain'
+        end
+      end
+    end
+
     context 'with tree path' do
       before do
         get(:show,