Port Homebrew::Cmd::Config

Library/Homebrew/cmd/config.rb

@@ -1,28 +1,25 @@
 # typed: strict
 # frozen_string_literal: true
 
+require "abstract_command"
 require "system_config"
-require "cli/parser"
 
 module Homebrew
-  module_function
+  module Cmd
+    class Config < AbstractCommand
+      cmd_args do
+        description <<~EOS
+          Show Homebrew and system configuration info useful for debugging. If you file
+          a bug report, you will be required to provide this information.
+        EOS
 
-  sig { returns(CLI::Parser) }
+        named_args :none
-  def config_args
+      end
-    Homebrew::CLI::Parser.new do
-      description <<~EOS
-        Show Homebrew and system configuration info useful for debugging. If you file
-        a bug report, you will be required to provide this information.
-      EOS
 
-      named_args :none
+      sig { override.void }
+      def run
+        SystemConfig.dump_verbose_config
+      end
     end
   end
-
-  sig { void }
-  def config
-    config_args.parse
-
-    SystemConfig.dump_verbose_config
-  end
 end

Library/Homebrew/test/cmd/config_spec.rb

@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
+require "cmd/config"
 require "cmd/shared_examples/args_parse"
 
-RSpec.describe "brew config" do
+RSpec.describe Homebrew::Cmd::Config do
   it_behaves_like "parseable arguments"
 
   it "prints information about the current Homebrew configuration", :integration_test do