gitlab-org--gitlab-foss/app/helpers/external_wiki_helper.rb

module ExternalWikiHelper
  def get_project_wiki_path(project)
    external_wiki_service = project.services.
      find { |service| service.to_param == 'external_wiki' }
    if external_wiki_service.present? && external_wiki_service.active?
      external_wiki_service.properties['external_wiki_url']
    else
      namespace_project_wiki_path(project.namespace, project, :home)
    end
  end
end