Merge pull request #47468 from skipkayhil/only-require-irb-when-uncon…

…figured

Only require irb if console is unconfigured

railties/lib/rails/commands/console/console_command.rb

@@ -1,8 +1,5 @@
 # frozen_string_literal: true
 
-require "irb"
-require "irb/completion"
-
 require "rails/command/environment_argument"
 
 module Rails
@@ -34,14 +31,17 @@ def initialize(app, options = {})
 
       app.load_console
 
-      @console = app.config.console || IRB
+      @console = app.config.console || begin
+        require "irb"
+        require "irb/completion"
 
-      if @console == IRB
         IRB::WorkSpace.prepend(BacktraceCleaner)
 
         if Rails.env.production?
           ENV["IRB_USE_AUTOCOMPLETE"] ||= "false"
         end
+
+        IRB
       end
     end
 

railties/test/commands/console_test.rb

@@ -55,7 +55,7 @@ def test_console_with_environment
 
   def test_console_defaults_to_IRB
     app = build_app(nil)
-    assert_equal IRB, Rails::Console.new(app).console
+    assert_equal "IRB", Rails::Console.new(app).console.name
   end
 
   def test_console_disables_IRB_auto_completion_in_production
@@ -64,7 +64,7 @@ def test_console_disables_IRB_auto_completion_in_production
 
     with_rack_env "production" do
       app = build_app(nil)
-      assert_equal IRB, Rails::Console.new(app).console
+      assert_equal "IRB", Rails::Console.new(app).console.name
       assert_equal "false", ENV["IRB_USE_AUTOCOMPLETE"]
     end
   ensure
@@ -77,7 +77,7 @@ def test_console_accepts_override_on_IRB_auto_completion_flag
 
     with_rack_env "production" do
       app = build_app(nil)
-      assert_equal IRB, Rails::Console.new(app).console
+      assert_equal "IRB", Rails::Console.new(app).console.name
       assert_equal "true", ENV["IRB_USE_AUTOCOMPLETE"]
     end
   ensure
@@ -90,7 +90,7 @@ def test_console_doesnt_disable_IRB_auto_completion_in_non_production
 
     with_rails_env nil do
       app = build_app(nil)
-      assert_equal IRB, Rails::Console.new(app).console
+      assert_equal "IRB", Rails::Console.new(app).console.name
       assert_nil ENV["IRB_USE_AUTOCOMPLETE"]
     end
   ensure