rails_gemfile_entry

# File railties/lib/rails/generators/app_base.rb, line 271
      def rails_gemfile_entry
        if options.dev?
          [
            GemfileEntry.path("rails", Rails::Generators::RAILS_DEV_PATH)
          ]
        elsif options.edge?
          [
            GemfileEntry.github("rails", "rails/rails", "5-2-stable")
          ]
        else
          [GemfileEntry.version("rails",
                            rails_version_specifier,
                            "Bundle edge Rails instead: gem 'rails', github: 'rails/rails'")]
        end
      end