Port Homebrew::Cmd::Postinstall

Library/Homebrew/cmd/postinstall.rb

@@ -1,27 +1,23 @@
-# typed: true
+# typed: strict
 # frozen_string_literal: true
 
+require "abstract_command"
 require "sandbox"
 require "formula_installer"
-require "cli/parser"
 
 module Homebrew
-  module_function
+  module Cmd
-
+    class Postinstall < AbstractCommand
-  sig { returns(CLI::Parser) }
+      cmd_args do
-  def postinstall_args
-    Homebrew::CLI::Parser.new do
         description <<~EOS
           Rerun the post-install steps for <formula>.
         EOS
 
         named_args :installed_formula, min: 1
       end
-  end
-
-  def postinstall
-    args = postinstall_args.parse
 
+      sig { override.void }
+      def run
         args.named.to_resolved_formulae.each do |f|
           ohai "Postinstalling #{f}"
           f.install_etc_var
@@ -33,4 +29,6 @@ module Homebrew
           end
         end
       end
+    end
+  end
 end

Library/Homebrew/postinstall.rb

@@ -12,13 +12,13 @@ require "cli/parser"
 require "cmd/postinstall"
 
 begin
-  args = Homebrew.postinstall_args.parse
+  args = Homebrew::Cmd::Postinstall.new.args
   error_pipe = UNIXSocket.open(ENV.fetch("HOMEBREW_ERROR_PIPE"), &:recv_io)
   error_pipe.fcntl(Fcntl::F_SETFD, Fcntl::FD_CLOEXEC)
 
   trap("INT", old_trap)
 
-  formula = args.named.to_resolved_formulae.first
+  formula = T.must(args.named.to_resolved_formulae.first)
   if args.debug?
     require "debrew"
     formula.extend(Debrew::Formula)

Library/Homebrew/test/cmd/postinstall_spec.rb

@@ -1,7 +1,8 @@
 # frozen_string_literal: true
 
+require "cmd/postinstall"
 require "cmd/shared_examples/args_parse"
 
-RSpec.describe "brew postinstall" do
+RSpec.describe Homebrew::Cmd::Postinstall do
   it_behaves_like "parseable arguments"
 end