1 files changed, 43 insertions, 0 deletions
diff --git a/railties/lib/rails/commands/routes/routes_command.rb b/railties/lib/rails/commands/routes/routes_command.rb
new file mode 100644
index 0000000000..c4fd6c7eb5
--- /dev/null
+++ b/railties/lib/rails/commands/routes/routes_command.rb
@@ -0,0 +1,43 @@
+# frozen_string_literal: true
+
+require "rails/command"
+
+module Rails
+  module Command
+    class RoutesCommand < Base # :nodoc:
+      class_option :controller, aliases: "-c", type: :string, desc: "Specifies the controller."
+      class_option :grep_pattern, aliases: "-g", type: :string, desc: "Specifies grep pattern."
+
+      no_commands do
+        def help
+          say "Usage: Print out all defined routes in match order, with names."
+          say ""
+          say "Target specific controller with -c option, or grep routes using -g option"
+          say ""
+        end
+      end
+
+      def perform(*)
+        require_application_and_environment!
+        require "action_dispatch/routing/inspector"
+
+        all_routes = Rails.application.routes.routes
+        inspector = ActionDispatch::Routing::RoutesInspector.new(all_routes)
+
+        say inspector.format(ActionDispatch::Routing::ConsoleFormatter.new, routes_filter)
+      end
+
+      private
+
+        def routes_filter
+          if options.has_key?("controller")
+            { controller: options["controller"] }
+          elsif options.has_key?("grep_pattern")
+            options["grep_pattern"]
+          else
+            nil
+          end
+        end
+    end
+  end
+end