rails_gemfile_entry

# File railties/lib/rails/generators/app_base.rb, line 241
      def rails_gemfile_entry
        dev_edge_common = [
        ]
        if options.dev?
          [
            GemfileEntry.path("rails", Rails::Generators::RAILS_DEV_PATH)
          ] + dev_edge_common
        elsif options.edge?
          [
            GemfileEntry.github("rails", "rails/rails")
          ] + dev_edge_common
        else
          [GemfileEntry.version("rails",
                            rails_version_specifier,
                            "Bundle edge Rails instead: gem 'rails', github: 'rails/rails'")]
        end
      end