Port Homebrew::Cmd::CommandsCmd

Library/Homebrew/cmd/commands.rb

@@ -1,49 +1,46 @@
 # typed: strict
 # frozen_string_literal: true
 
-require "cli/parser"
+require "abstract_command"
 
 module Homebrew
-  module_function
+  module Cmd
+    class CommandsCmd < AbstractCommand
+      cmd_args do
+        description <<~EOS
+          Show lists of built-in and external commands.
+        EOS
+        switch "-q", "--quiet",
+               description: "List only the names of commands without category headers."
+        switch "--include-aliases",
+               depends_on:  "--quiet",
+               description: "Include aliases of internal commands."
 
-  sig { returns(CLI::Parser) }
-  def commands_args
-    Homebrew::CLI::Parser.new do
-      description <<~EOS
-        Show lists of built-in and external commands.
-      EOS
-      switch "-q", "--quiet",
-             description: "List only the names of commands without category headers."
-      switch "--include-aliases",
-             depends_on:  "--quiet",
-             description: "Include aliases of internal commands."
+        named_args :none
+      end
 
-      named_args :none
-    end
-  end
+      sig { override.void }
+      def run
+        if args.quiet?
+          puts Formatter.columns(Commands.commands(aliases: args.include_aliases?))
+          return
+        end
 
-  sig { void }
-  def commands
-    args = commands_args.parse
+        prepend_separator = T.let(false, T::Boolean)
 
-    if args.quiet?
-      puts Formatter.columns(Commands.commands(aliases: args.include_aliases?))
-      return
-    end
+        {
+          "Built-in commands"           => Commands.internal_commands,
+          "Built-in developer commands" => Commands.internal_developer_commands,
+          "External commands"           => Commands.external_commands,
+        }.each do |title, commands|
+          next if commands.blank?
 
-    prepend_separator = T.let(false, T::Boolean)
+          puts if prepend_separator
+          ohai title, Formatter.columns(commands)
 
-    {
-      "Built-in commands"           => Commands.internal_commands,
-      "Built-in developer commands" => Commands.internal_developer_commands,
-      "External commands"           => Commands.external_commands,
-    }.each do |title, commands|
-      next if commands.blank?
-
-      puts if prepend_separator
-      ohai title, Formatter.columns(commands)
-
-      prepend_separator ||= true
+          prepend_separator ||= true
+        end
+      end
     end
   end
 end

Library/Homebrew/test/cmd/commands_spec.rb

@@ -1,11 +1,9 @@
 # frozen_string_literal: true
 
 require "cmd/commands"
-require "fileutils"
-
 require "cmd/shared_examples/args_parse"
 
-RSpec.describe "brew commands" do
+RSpec.describe Homebrew::Cmd::CommandsCmd do
   it_behaves_like "parseable arguments"
 
   it "prints a list of all available commands", :integration_test do