fixed shakapacker detection during the installation generator work

Author: vaukalak

Gemfile.lock

@@ -1,7 +1,7 @@
 PATH
   remote: .
   specs:
-    react_on_rails (14.0.0)
+    react_on_rails (14.0.2)
       addressable
       connection_pool
       execjs (~> 2.5)
@@ -119,6 +119,9 @@ GEM
       tins (~> 1.6)
     crass (1.0.6)
     date (3.3.4)
+    debug (1.9.2)
+      irb (~> 1.10)
+      reline (>= 0.3.8)
     diff-lcs (1.5.1)
     docile (1.4.0)
     drb (2.2.1)
@@ -397,6 +400,7 @@ DEPENDENCIES
   capybara
   capybara-screenshot
   coveralls
+  debug
   equivalent-xml
   gem-release
   generator_spec

lib/generators/react_on_rails/base_generator.rb

@@ -88,28 +88,28 @@ def add_yarn_dependencies
 
         puts "Adding React dependencies"
         package_json.manager.add([
-          "react",
-          "react-dom",
-          "@babel/preset-react",
-          "prop-types",
-          "babel-plugin-transform-react-remove-prop-types",
-          "babel-plugin-macros"
-        ])
+                                   "react",
+                                   "react-dom",
+                                   "@babel/preset-react",
+                                   "prop-types",
+                                   "babel-plugin-transform-react-remove-prop-types",
+                                   "babel-plugin-macros"
+                                 ])
 
         puts "Adding CSS handlers"
 
-        package_json.manager.add([
-          "css-loader",
-          "css-minimizer-webpack-plugin",
-          "mini-css-extract-plugin",
-          "style-loader"
-        ])
+        package_json.manager.add(%w[
+                                   css-loader
+                                   css-minimizer-webpack-plugin
+                                   mini-css-extract-plugin
+                                   style-loader
+                                 ])
 
         puts "Adding dev dependencies"
         package_json.manager.add([
-          "@pmmmwh/react-refresh-webpack-plugin",
-          "react-refresh"
-        ], type: :dev)
+                                   "@pmmmwh/react-refresh-webpack-plugin",
+                                   "react-refresh"
+                                 ], type: :dev)
       end
 
       def append_to_spec_rails_helper

lib/generators/react_on_rails/generator_helper.rb

@@ -1,24 +1,11 @@
 # frozen_string_literal: true
 
+require "package_json"
 require "rainbow"
 
 module GeneratorHelper
-  def require_package_json_gem
-    require "bundler/inline"
-
-    gemfile { gem "package_json", github: "G-Rath/package_json" }
-
-    puts "using package_json v#{PackageJson::VERSION}"
-  end
-
   def package_json
-    if @package_json.nil?
-      require_package_json_gem
-
-      @package_json = PackageJson.read(@app_path)
-    end
-
-    @package_json
+    @package_json ||= PackageJson.read(Rails.root.to_s)
   end
 
   # Takes a relative path from the destination root, such as `.gitignore` or `app/assets/javascripts/application.js`