Port Homebrew::Cmd::Missing

Library/Homebrew/cmd/missing.rb

@@ -1,17 +1,15 @@
-# typed: true
+# typed: strict
 # frozen_string_literal: true
 
+require "abstract_command"
 require "formula"
 require "tab"
 require "diagnostic"
-require "cli/parser"
 
 module Homebrew
-  module_function
-
-  sig { returns(CLI::Parser) }
-  def missing_args
-    Homebrew::CLI::Parser.new do
+  module Cmd
+    class Missing < AbstractCommand
+      cmd_args do
         description <<~EOS
           Check the given <formula> kegs for missing dependencies. If no <formula> are
           provided, check all kegs. Will exit with a non-zero status if any kegs are found
@@ -23,11 +21,9 @@ module Homebrew
 
         named_args :formula
       end
-  end
-
-  def missing
-    args = missing_args.parse
 
+      sig { override.void }
+      def run
         return unless HOMEBREW_CELLAR.exist?
 
         ff = if args.no_named?
@@ -45,4 +41,6 @@ module Homebrew
           puts missing.join(" ")
         end
       end
+    end
+  end
 end

Library/Homebrew/test/cmd/missing_spec.rb

@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
+require "cmd/missing"
 require "cmd/shared_examples/args_parse"
 
-RSpec.describe "brew missing" do
+RSpec.describe Homebrew::Cmd::Missing do
   it_behaves_like "parseable arguments"
 
   it "prints missing dependencies", :integration_test do