UnrecognizedCommandError can be corrected and retried.

When encountering a UnrecognizedCommandError, the developer will be given the option to run of the suggested corrections instead.

railties/CHANGELOG.md

@@ -1,3 +1,17 @@
+*   When encountering an Unrecognized Command Error, the developer will be given the option to
+    run of the suggested corrections instead.
+
+    ```txt
+    bin/rails action_txt:install
+    Unrecognized command "action_txt:install"
+
+    Did you mean?  action_text:install [Yn] Y
+    Installing JavaScript dependencies
+    ...
+    ```
+
+    *Andrew Novoselac & Gannon McGibbon*
+
 *   Skip generating a `test` job in ci.yml when a new application is generated with the
     `--skip-test` option.
 

railties/lib/rails/command.rb

@@ -44,6 +44,21 @@ def initialize(name)
       end
     end
 
+    class UnrecognizedCommandCorrector < Thor::Shell::Basic
+      def correct(error)
+        if defined?(DidYouMean::Correctable) && defined?(DidYouMean::SpellChecker)
+          say error.original_message
+
+          error.corrections.detect do |correction|
+            correction if yes? DidYouMean.formatter.message_for([correction]) + " [Yn]"
+          end
+        else
+          say error.detailed_message
+          nil
+        end
+      end
+    end
+
     include Behavior
 
     HELP_MAPPINGS = %w(-h -? --help).to_set
@@ -76,6 +91,9 @@ def invoke(full_namespace, args = [], **config)
       rescue UnrecognizedCommandError => error
         if error.name == full_namespace && command && command_name == full_namespace
           command.perform("help", [], config)
+        elsif tty?
+          correction = UnrecognizedCommandCorrector.new.correct(error)
+          return invoke(correction, args, **config) if correction
         else
           puts error.detailed_message
         end
@@ -167,6 +185,10 @@ def lookup_paths # :doc:
         def file_lookup_paths # :doc:
           @file_lookup_paths ||= [ "{#{lookup_paths.join(',')}}", "**", "*_command.rb" ]
         end
+
+        def tty?
+          STDOUT.tty?
+        end
     end
   end
 end

railties/test/command/help_integration_test.rb

@@ -15,7 +15,7 @@ class Rails::Command::HelpIntegrationTest < ActiveSupport::TestCase
     output = rails "vershen", allow_failure: true
 
     assert_match %(Unrecognized command "vershen"), output
-    assert_match "Did you mean?  version", output
+    assert_match "Did you mean?  version [Yn]", output
   end
 
   test "loads Rake tasks only once on unrecognized command" do