1 files changed, 47 insertions, 5 deletions
diff --git a/lib/tasks/rubocop.rake b/lib/tasks/rubocop.rake
index 8c5edb5de8a..6eabdf51dcd 100644
--- a/lib/tasks/rubocop.rake
+++ b/lib/tasks/rubocop.rake
@@ -1,4 +1,5 @@
 # frozen_string_literal: true
+# rubocop:disable Rails/RakeEnvironment
 
 unless Rails.env.production?
   require 'rubocop/rake_task'
@@ -8,18 +9,59 @@ unless Rails.env.production?
   namespace :rubocop do
     namespace :todo do
       desc 'Generate RuboCop todos'
-      task :generate do # rubocop:disable Rails/RakeEnvironment
+      task :generate do |_task, args|
         require 'rubocop'
+        require 'active_support/inflector/inflections'
+        require_relative '../../rubocop/todo_dir'
+        require_relative '../../rubocop/formatter/todo_formatter'
+
+        # Reveal all pending TODOs so RuboCop can pick them up and report
+        # during scan.
+        ENV['REVEAL_RUBOCOP_TODO'] = '1'
+
+        # Save cop configuration like `RSpec/ContextWording` into
+        # `rspec/context_wording.yml` and not into
+        # `r_spec/context_wording.yml`.
+        ActiveSupport::Inflector.inflections(:en) do |inflect|
+          inflect.acronym 'RSpec'
+          inflect.acronym 'GraphQL'
+        end
 
         options = %w[
-          --auto-gen-config
-          --auto-gen-only-exclude
-          --exclude-limit=100000
-          --no-offense-counts
+          --parallel
+          --format RuboCop::Formatter::TodoFormatter
         ]
 
+        # Convert from Rake::TaskArguments into an Array to make `any?` work as
+        # expected.
+        cop_names = args.to_a
+
+        todo_dir = RuboCop::TodoDir.new(RuboCop::TodoDir::DEFAULT_TODO_DIR)
+
+        if cop_names.any?
+          # We are sorting the cop names to benefit from RuboCop cache which
+          # also takes passed parameters into account.
+          list = cop_names.sort.join(',')
+          options.concat ['--only', list]
+
+          cop_names.each { |cop_name| todo_dir.inspect(cop_name) }
+        else
+          todo_dir.inspect_all
+        end
+
+        puts <<~MSG
+          Generating RuboCop TODOs with:
+            rubocop #{options.join(' ')}
+
+          This might take a while...
+        MSG
+
         RuboCop::CLI.new.run(options)
+
+        todo_dir.delete_inspected
       end
     end
   end
 end
+
+# rubocop:enable Rails/RakeEnvironment