Port Homebrew::DevCmd::Irb

Library/Homebrew/dev-cmd/install-bundler-gems.rb

@@ -1,6 +1,7 @@
 # typed: strict
 # frozen_string_literal: true
 
+require "abstract_command"
 require "cli/parser"
 
 module Homebrew

Library/Homebrew/dev-cmd/irb.rb

@@ -1,6 +1,7 @@
 # typed: true
 # frozen_string_literal: true
 
+require "abstract_command"
 require "formulary"
 require "cask/cask_loader"
 require "cli/parser"
@@ -27,73 +28,76 @@ class Symbol
 end
 
 module Homebrew
-  module_function
+  module DevCmd
+    class Irb < AbstractCommand
+      cmd_args do
+        description <<~EOS
+          Enter the interactive Homebrew Ruby shell.
+        EOS
+        switch "--examples",
+               description: "Show several examples."
+        switch "--pry",
+               env:         :pry,
+               description: "Use Pry instead of IRB. Implied if `HOMEBREW_PRY` is set."
+      end
 
-  sig { returns(CLI::Parser) }
-  def irb_args
-    Homebrew::CLI::Parser.new do
-      description <<~EOS
-        Enter the interactive Homebrew Ruby shell.
-      EOS
-      switch "--examples",
-             description: "Show several examples."
-      switch "--pry",
-             env:         :pry,
-             description: "Use Pry instead of IRB. Implied if `HOMEBREW_PRY` is set."
+      # work around IRB modifying ARGV.
+      sig { params(argv: T.nilable(T::Array[String])).void }
+      def initialize(argv = nil) = super(argv || ARGV.dup.freeze)
+
+      sig { override.void }
+      def run
+        clean_argv
+
+        if args.examples?
+          puts <<~EOS
+            'v8'.f # => instance of the v8 formula
+            :hub.f.latest_version_installed?
+            :lua.f.methods - 1.methods
+            :mpd.f.recursive_dependencies.reject(&:installed?)
+
+            'vlc'.c # => instance of the vlc cask
+            :tsh.c.livecheckable?
+          EOS
+          return
+        end
+
+        if args.pry?
+          Homebrew.install_bundler_gems!(groups: ["pry"])
+          require "pry"
+        else
+          require "irb"
+        end
+
+        require "formula"
+        require "keg"
+        require "cask"
+
+        ohai "Interactive Homebrew Shell", "Example commands available with: `brew irb --examples`"
+        if args.pry?
+          Pry.config.should_load_rc = false # skip loading .pryrc
+          Pry.config.history_file = "#{Dir.home}/.brew_pry_history"
+          Pry.config.memory_size = 100 # max lines to save to history file
+          Pry.config.prompt_name = "brew"
+
+          Pry.start
+        else
+          ENV["IRBRC"] = (HOMEBREW_LIBRARY_PATH/"brew_irbrc").to_s
+
+          IRB.start
+        end
+      end
+
+      private
+
+      # Remove the `--debug`, `--verbose` and `--quiet` options which cause problems
+      # for IRB and have already been parsed by the CLI::Parser.
+      def clean_argv
+        global_options = Homebrew::CLI::Parser
+                         .global_options
+                         .flat_map { |options| options[0..1] }
+        ARGV.reject! { |arg| global_options.include?(arg) }
+      end
     end
   end
-
-  def irb
-    # work around IRB modifying ARGV.
-    args = irb_args.parse(ARGV.dup.freeze)
-
-    clean_argv
-
-    if args.examples?
-      puts <<~EOS
-        'v8'.f # => instance of the v8 formula
-        :hub.f.latest_version_installed?
-        :lua.f.methods - 1.methods
-        :mpd.f.recursive_dependencies.reject(&:installed?)
-
-        'vlc'.c # => instance of the vlc cask
-        :tsh.c.livecheckable?
-      EOS
-      return
-    end
-
-    if args.pry?
-      Homebrew.install_bundler_gems!(groups: ["pry"])
-      require "pry"
-    else
-      require "irb"
-    end
-
-    require "formula"
-    require "keg"
-    require "cask"
-
-    ohai "Interactive Homebrew Shell", "Example commands available with: `brew irb --examples`"
-    if args.pry?
-      Pry.config.should_load_rc = false # skip loading .pryrc
-      Pry.config.history_file = "#{Dir.home}/.brew_pry_history"
-      Pry.config.memory_size = 100 # max lines to save to history file
-      Pry.config.prompt_name = "brew"
-
-      Pry.start
-    else
-      ENV["IRBRC"] = (HOMEBREW_LIBRARY_PATH/"brew_irbrc").to_s
-
-      IRB.start
-    end
-  end
-
-  # Remove the `--debug`, `--verbose` and `--quiet` options which cause problems
-  # for IRB and have already been parsed by the CLI::Parser.
-  def clean_argv
-    global_options = Homebrew::CLI::Parser
-                     .global_options
-                     .flat_map { |options| options[0..1] }
-    ARGV.reject! { |arg| global_options.include?(arg) }
-  end
 end

Library/Homebrew/test/dev-cmd/irb_spec.rb

@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
+require "dev-cmd/irb"
 
-RSpec.describe "brew irb" do
+RSpec.describe Homebrew::DevCmd::Irb do
   it_behaves_like "parseable arguments"
 
   describe "integration test" do