Port Homebrew::DevCmd::Unpack

Library/Homebrew/dev-cmd/unpack.rb

@@ -1,14 +1,18 @@
-# typed: true
+# typed: strict
 # frozen_string_literal: true
 
+require "abstract_command"
+require "fileutils"
 require "stringio"
 require "formula"
 require "cli/parser"
 
 module Homebrew
-  sig { returns(CLI::Parser) }
+  module DevCmd
-  def self.unpack_args
+    class Unpack < AbstractCommand
-    Homebrew::CLI::Parser.new do
+      include FileUtils
+
+      cmd_args do
         description <<~EOS
           Unpack the source files for <formula> into subdirectories of the current
           working directory.
@@ -27,11 +31,9 @@ module Homebrew
 
         named_args :formula, min: 1
       end
-  end
-
-  def self.unpack
-    args = unpack_args.parse
 
+      sig { override.void }
+      def run
         formulae = args.named.to_formulae
 
         if (dir = args.destdir)
@@ -72,4 +74,6 @@ module Homebrew
           end
         end
       end
+    end
+  end
 end

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

@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
+require "dev-cmd/unpack"
 
-RSpec.describe "brew unpack" do
+RSpec.describe Homebrew::DevCmd::Unpack do
   it_behaves_like "parseable arguments"
 
   it "unpacks a given Formula's archive", :integration_test do