Use the combined jsbundling-rails gem instead of individual js bundler gems (#43172)

* Use the combined jsbundling-rails gem instead of individual js bundler gems

* Remove Webpacker remnants

* Replace webpacker with jsbundling-rails

Gemfile

@@ -15,7 +15,7 @@ gem "selenium-webdriver", ">= 4.0.0.alpha7"
 gem "rack-cache", "~> 1.2"
 gem "stimulus-rails"
 gem "turbo-rails"
-gem "webpacker", "~> 6.0.0.rc.5", require: ENV["SKIP_REQUIRE_WEBPACKER"] != "true"
+gem "jsbundling-rails"
 gem "importmap-rails"
 # require: false so bcrypt is loaded only when has_secure_password is used.
 # This is to avoid Active Model (and by extension the entire framework)

Gemfile.lock

@@ -81,7 +81,6 @@ PATH
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-      zeitwerk (~> 2.5.0.beta3)
     rails (7.0.0.alpha)
       actioncable (= 7.0.0.alpha)
       actionmailbox (= 7.0.0.alpha)
@@ -103,6 +102,7 @@ PATH
       method_source
       rake (>= 0.13)
       thor (~> 1.0)
+      zeitwerk (~> 2.5.0.beta3)
 
 GEM
   remote: https://rubygems.org/
@@ -286,9 +286,11 @@ GEM
     image_processing (1.12.1)
       mini_magick (>= 4.9.5, < 5)
       ruby-vips (>= 2.0.17, < 3)
-    importmap-rails (0.5.0)
+    importmap-rails (0.5.1)
       rails (>= 6.0.0)
     jmespath (1.4.0)
+    jsbundling-rails (0.1.0)
+      rails (>= 6.0.0)
     json (2.5.1)
     jwt (2.2.3)
     kindlerb (1.2.0)
@@ -354,8 +356,6 @@ GEM
       rack (>= 0.4)
     rack-protection (2.1.0)
       rack
-    rack-proxy (0.7.0)
-      rack
     rack-test (1.1.0)
       rack (>= 1.0, < 3)
     rails-dom-testing (2.0.3)
@@ -428,7 +428,6 @@ GEM
       childprocess (>= 0.5, < 5.0)
       rexml (~> 3.2)
       rubyzip (>= 1.2.2)
-    semantic_range (3.0.0)
     sequel (5.45.0)
     serverengine (2.0.7)
       sigdump (~> 0.2.2)
@@ -467,7 +466,7 @@ GEM
       sprockets (>= 3.0.0)
     sqlite3 (1.4.2)
     stackprof (0.2.17)
-    stimulus-rails (0.4.0)
+    stimulus-rails (0.4.2)
       rails (>= 6.0.0)
     sucker_punch (3.0.1)
       concurrent-ruby (~> 1.0)
@@ -480,7 +479,7 @@ GEM
     thor (1.1.0)
     tilt (2.0.10)
     trailblazer-option (0.1.1)
-    turbo-rails (0.7.10)
+    turbo-rails (0.7.11)
       rails (>= 6.0.0)
     tzinfo (2.0.4)
       concurrent-ruby (~> 1.0)
@@ -501,11 +500,6 @@ GEM
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
       hashdiff (>= 0.4.0, < 2.0.0)
-    webpacker (6.0.0.rc.5)
-      activesupport (>= 5.2)
-      rack-proxy (>= 0.6.1)
-      railties (>= 5.2)
-      semantic_range (>= 2.3.0)
     webrick (1.7.0)
     websocket (1.2.9)
     websocket-driver (0.7.5)
@@ -543,6 +537,7 @@ DEPENDENCIES
   hiredis
   image_processing (~> 1.2)
   importmap-rails
+  jsbundling-rails
   json (>= 2.0.0)
   kindlerb (~> 1.2.0)
   libxml-ruby
@@ -590,7 +585,6 @@ DEPENDENCIES
   wdm (>= 0.1.0)
   webdrivers
   webmock
-  webpacker (~> 6.0.0.rc.5)
   webrick
   websocket-client-simple!
 

activejob/Rakefile

@@ -28,7 +28,6 @@ namespace :test do
 
   task "env:integration" do
     ENV["AJ_INTEGRATION_TESTS"] = "1"
-    ENV["SKIP_REQUIRE_WEBPACKER"] = "true"
   end
 
   ACTIVEJOB_ADAPTERS.each do |adapter|

railties/lib/rails/generators/app_base.rb

@@ -296,12 +296,8 @@ module Rails
         case options[:javascript]
         when "importmap"
           GemfileEntry.version("importmap-rails", ">= 0.3.4", "Manage modern JavaScript using ESM without transpiling or bundling")
-        when "webpack"
-          GemfileEntry.version "webpacker", "~> 6.0.0.rc.5", "Transpile app-like JavaScript. Read more: https://github.com/rails/webpacker"
-        when "esbuild"
-          GemfileEntry.version "esbuild-rails", "~> 0.1.2", "Transpile app-like JavaScript. Read more: https://github.com/rails/esbuild-rails"
-        when "rollup"
-          GemfileEntry.version "rollupjs-rails", "~> 0.1.0", "Transpile app-like JavaScript. Read more: https://github.com/rails/rollupjs-rails"
+        when "webpack", "esbuild", "rollup"
+          GemfileEntry.version "jsbundling-rails", "~> 0.1.0", "Bundle and transpile JavaScript with esbuild, rollup.js, or Webpack. Read more: https://github.com/rails/jsbundling-rails"
         else
           raise "Unknown JavaScript approach: #{options[:javascript]} [options are: importmap, webpack, esbuild, rollup]"
         end
@@ -381,10 +377,8 @@ module Rails
         return if options[:skip_javascript] || !bundle_install?
 
         case options[:javascript]
-        when "importmap" then rails_command "importmap:install"
-        when "webpack"   then rails_command "webpacker:install"
-        when "esbuild"   then rails_command "esbuild:install"
-        when "rollup"    then rails_command "rollup:install"
+        when "importmap"                    then rails_command "importmap:install"
+        when "webpack", "esbuild", "rollup" then rails_command "javascript:install:#{options[:javascript]}"
         end
       end
 

railties/lib/rails/generators/rails/plugin/plugin_generator.rb

@@ -316,7 +316,6 @@ module Rails
         mute do
           build(:generate_test_dummy)
           build(:test_dummy_config)
-          build(:test_dummy_webpacker_assets)
           build(:test_dummy_sprocket_assets) unless options[:skip_sprockets]
           build(:test_dummy_clean)
           # ensure that bin/rails has proper dummy_path

railties/test/engine/commands_test.rb

@@ -24,7 +24,7 @@ class Rails::Engine::CommandsTest < ActiveSupport::TestCase
 
   def test_runner_command_work_inside_engine
     output = capture(:stdout) do
-      Dir.chdir(plugin_path) { system({ "SKIP_REQUIRE_WEBPACKER" => "true" }, "bin/rails runner 'puts Rails.env'") }
+      Dir.chdir(plugin_path) { system("bin/rails runner 'puts Rails.env'") }
     end
 
     assert_equal "test", output.strip
@@ -68,7 +68,6 @@ class Rails::Engine::CommandsTest < ActiveSupport::TestCase
 
     def spawn_command(command, fd)
       Process.spawn(
-        { "SKIP_REQUIRE_WEBPACKER" => "true" },
         "#{plugin_path}/bin/rails #{command}",
         in: fd, out: fd, err: fd
       )

railties/test/generators/app_generator_test.rb

@@ -94,14 +94,6 @@ class AppGeneratorTest < Rails::Generators::TestCase
   # brings setup, teardown, and some tests
   include SharedGeneratorTests
 
-  setup do
-    ENV["SKIP_REQUIRE_WEBPACKER"] = "true"
-  end
-
-  teardown do
-    ENV["SKIP_REQUIRE_WEBPACKER"] = nil
-  end
-
   def default_files
     ::DEFAULT_APP_FILES
   end
@@ -791,7 +783,7 @@ class AppGeneratorTest < Rails::Generators::TestCase
     webpacker_called = 0
     command_check = -> command, *_ do
       case command
-      when "webpacker:install"
+      when "javascript:install:webpack"
         webpacker_called += 1
       end
     end
@@ -800,8 +792,8 @@ class AppGeneratorTest < Rails::Generators::TestCase
       run_generator_instance
     end
 
-    assert_equal 1, webpacker_called, "`webpacker:install` expected to be called once, but was called #{webpacker_called} times."
-    assert_gem "webpacker"
+    assert_equal 1, webpacker_called, "`javascript:install:webpack` expected to be called once, but was called #{webpacker_called} times."
+    assert_gem "jsbundling-rails"
   end
 
   def test_hotwire