NO_SPECS_LABELS = %w[backstage Documentation QA].freeze
NO_NEW_SPEC_MESSAGE = <<~MSG.freeze
You've made some app changes, but didn't add any tests.
That's OK as long as you're refactoring existing code,
but please consider adding any of the %<labels>s labels.
MSG

def presented_no_changelog_labels
  NO_SPECS_LABELS.map { |label| "~#{label}" }.join(', ')
end

has_app_changes = !git.modified_files.grep(%r{\A(ee/)?(app|lib|db/(geo/)?(post_)?migrate)/}).empty?
has_spec_changes = !git.modified_files.grep(%r{\A(ee/)?spec/}).empty?
new_specs_needed = (gitlab.mr_labels & NO_SPECS_LABELS).empty?

if has_app_changes && !has_spec_changes && new_specs_needed
  warn format(NO_NEW_SPEC_MESSAGE, labels: presented_no_changelog_labels), sticky: false
end