Revert "replace binstub with spring command"

This reverts commit f553edc.

lib/packwerk.rb

@@ -78,6 +78,7 @@ module Generators
     autoload :ConfigurationFile
     autoload :InflectionsFile
     autoload :RootPackage
+    autoload :Binstub
   end
 
   module ReferenceChecking

lib/packwerk/cli.rb

@@ -92,8 +92,9 @@ def generate_configs
       )
       inflections_file = Packwerk::Generators::InflectionsFile.generate(root: @configuration.root_path, out: @out)
       root_package = Packwerk::Generators::RootPackage.generate(root: @configuration.root_path, out: @out)
+      binstub = Packwerk::Generators::Binstub.generate(root: @configuration.root_path, out: @out)
 
-      success = configuration_file && inflections_file && root_package
+      success = configuration_file && inflections_file && root_package && binstub
 
       result = if success
         <<~EOS

lib/packwerk/generators/binstub.rb

@@ -0,0 +1,42 @@
+# typed: true
+# frozen_string_literal: true
+
+module Packwerk
+  module Generators
+    class Binstub
+      class << self
+        def generate(root: ".", out: $stdout)
+          new(root, out: out).generate
+        end
+      end
+
+      def initialize(root, out: $stdout)
+        @root = root
+        @out = out
+      end
+
+      def generate
+        @out.puts("📦 Generating binstub...")
+        generate_packwerk_validate_script
+      end
+
+      private
+
+      def generate_packwerk_validate_script
+        destination_file_path = File.join(@root, "bin")
+        FileUtils.mkdir_p(destination_file_path)
+
+        if File.exist?(File.join(destination_file_path, "packwerk"))
+          @out.puts("⚠️  Packwerk binstub already exists.")
+          return true
+        end
+
+        source_file_path = File.expand_path("templates/packwerk", __dir__)
+        FileUtils.cp(source_file_path, destination_file_path)
+
+        @out.puts("✅ Packwerk binstub generated in #{destination_file_path}")
+        true
+      end
+    end
+  end
+end

test/unit/generators/binstub_test.rb

@@ -0,0 +1,36 @@
+# typed: false
+# frozen_string_literal: true
+
+require "test_helper"
+
+module Packwerk
+  module Generators
+    class BinstubTest < Minitest::Test
+      setup do
+        @string_io = StringIO.new
+        @temp_dir = Dir.mktmpdir
+        FileUtils.mkdir_p(Pathname.new(@temp_dir).join("bin"))
+        @generated_file_path = File.join(@temp_dir, "bin", "packwerk")
+      end
+
+      teardown do
+        FileUtils.remove_entry(@temp_dir)
+      end
+
+      test ".generate creates a bin/packwerk file" do
+        success = Packwerk::Generators::Binstub.generate(root: @temp_dir, out: @string_io)
+        assert(File.exist?(@generated_file_path))
+        assert success
+        assert_includes @string_io.string, "binstub generated"
+      end
+
+      test ".generate does not create a bin/packwerk file if bin/packwerk already exists" do
+        File.open(File.join(@temp_dir, "bin/packwerk"), "w") do |_f|
+          success = Packwerk::Generators::Binstub.generate(root: @temp_dir, out: @string_io)
+          assert success
+          assert_includes @string_io.string, "binstub already exists"
+        end
+      end
+    end
+  end
+end