From f8caae06f7da3e17ddbd3af9efa62e0036a37a43 Mon Sep 17 00:00:00 2001
From: Douglas Eichelberger <dduugg@gmail.com>
Date: Mon, 1 Apr 2024 11:48:40 -0700
Subject: [PATCH] Port Homebrew::Cmd::Unpin

---
 Library/Homebrew/cmd/unpin.rb           | 46 ++++++++++++-------------
 Library/Homebrew/test/cmd/unpin_spec.rb |  3 +-
 2 files changed, 24 insertions(+), 25 deletions(-)

diff --git a/Library/Homebrew/cmd/unpin.rb b/Library/Homebrew/cmd/unpin.rb
index 9b26e4eda5..e75d15eb43 100644
--- a/Library/Homebrew/cmd/unpin.rb
+++ b/Library/Homebrew/cmd/unpin.rb
@@ -1,34 +1,32 @@
-# typed: true
+# typed: strict
 # frozen_string_literal: true
 
+require "abstract_command"
 require "formula"
-require "cli/parser"
 
 module Homebrew
-  module_function
+  module Cmd
+    class Unpin < AbstractCommand
+      cmd_args do
+        description <<~EOS
+          Unpin <formula>, allowing them to be upgraded by `brew upgrade` <formula>.
+          See also `pin`.
+        EOS
 
-  sig { returns(CLI::Parser) }
-  def unpin_args
-    Homebrew::CLI::Parser.new do
-      description <<~EOS
-        Unpin <formula>, allowing them to be upgraded by `brew upgrade` <formula>.
-        See also `pin`.
-      EOS
+        named_args :installed_formula, min: 1
+      end
 
-      named_args :installed_formula, min: 1
-    end
-  end
-
-  def unpin
-    args = unpin_args.parse
-
-    args.named.to_resolved_formulae.each do |f|
-      if f.pinned?
-        f.unpin
-      elsif !f.pinnable?
-        onoe "#{f.name} not installed"
-      else
-        opoo "#{f.name} not pinned"
+      sig { override.void }
+      def run
+        args.named.to_resolved_formulae.each do |f|
+          if f.pinned?
+            f.unpin
+          elsif !f.pinnable?
+            onoe "#{f.name} not installed"
+          else
+            opoo "#{f.name} not pinned"
+          end
+        end
       end
     end
   end
diff --git a/Library/Homebrew/test/cmd/unpin_spec.rb b/Library/Homebrew/test/cmd/unpin_spec.rb
index a3ba1df7b2..33912c65fb 100644
--- a/Library/Homebrew/test/cmd/unpin_spec.rb
+++ b/Library/Homebrew/test/cmd/unpin_spec.rb
@@ -1,8 +1,9 @@
 # frozen_string_literal: true
 
 require "cmd/shared_examples/args_parse"
+require "cmd/unpin"
 
-RSpec.describe "brew unpin" do
+RSpec.describe Homebrew::Cmd::Unpin do
   it_behaves_like "parseable arguments"
 
   it "unpins a Formula's version", :integration_test do