Hide new branch and tag links for projects with an empty repo

app/views/projects/buttons/_dropdown.html.haml

@@ -30,6 +30,7 @@
         %li
           = link_to project_new_blob_path(@project, @project.default_branch || 'master') do
             #{ _('New file') }
+        - unless @project.empty_repo?
           %li
             = link_to new_project_branch_path(@project) do
               #{ _('New branch') }

changelogs/unreleased/39988-hide-new-branch-tag-empty-repo.yml

+---
+title: Hide new branch and tag links for projects with an empty repo
+merge_request:
+author:
+type: fixed

spec/views/projects/buttons/_dropdown.html.haml_spec.rb

+require 'spec_helper'
+
+describe 'projects/buttons/_dropdown' do
+  let(:user) { create(:user) }
+
+  context 'user with all abilities' do
+    before do
+      assign(:project, project)
+
+      allow(view).to receive(:current_user).and_return(user)
+      allow(view).to receive(:can?).and_return(true)
+    end
+
+    context 'empty repository' do
+      let(:project) { create(:project, :empty_repo) }
+
+      it 'has a link to create a new file' do
+        render
+
+        expect(view).to render_template('projects/buttons/_dropdown')
+        expect(rendered).to have_link('New file')
+      end
+
+      it 'does not have a link to create a new branch' do
+        render
+
+        expect(view).to render_template('projects/buttons/_dropdown')
+        expect(rendered).not_to have_link('New branch')
+      end
+
+      it 'does not have a link to create a new tag' do
+        render
+
+        expect(view).to render_template('projects/buttons/_dropdown')
+        expect(rendered).not_to have_link('New tag')
+      end
+    end
+  end
+end