Merge branch '3146-mirror-repo' into 'master'

Adds back missing code to enable the mirror repository checkbox

Closes #3146

See merge request !2670

app/assets/javascripts/projects/project_new.js

@@ -57,6 +57,12 @@ const bindEvents = () => {
   });
 
   $projectImportUrl.keyup(() => deriveProjectPathFromUrl($projectImportUrl, $projectPath));
+
+  $('.import_git').on('click', () => {
+    const $projectMirror = $('#project_mirror');
+
+    $projectMirror.attr('disabled', !$projectMirror.attr('disabled'));
+  });
 };
 
 document.addEventListener('DOMContentLoaded', bindEvents);

changelogs/unreleased-ee/3146-mirror-repo.yml

+---
+title: Enable mirror repository button
+merge_request:
+author:
+type: fixed

spec/features/projects/new_project_spec.rb

@@ -125,6 +125,10 @@
         expect(git_import_instructions).to be_visible
         expect(git_import_instructions).to have_content 'Git repository URL'
       end
+
+      it 'shows mirror repository checkbox enabled', :js do
+        expect(page).to have_unchecked_field('Mirror repository', disabled: false)
+      end
     end
 
     context 'from GitHub' do