Fix generator validation by using environment variable

lib/generators/react_on_rails/install_generator.rb

@@ -37,6 +37,10 @@ class InstallGenerator < Rails::Generators::Base
       # Removed: --skip-shakapacker-install (Shakapacker is now a required dependency)
 
       def run_generators
+        # Set environment variable to skip validation during generator run
+        # This is inherited by all invoked generators and persists through Rails initialization
+        ENV["REACT_ON_RAILS_SKIP_VALIDATION"] = "true"
+
         if installation_prerequisites_met? || options.ignore_warnings?
           invoke_generators
           add_bin_scripts
@@ -55,6 +59,7 @@ def run_generators
           GeneratorMessages.add_error(error)
         end
       ensure
+        ENV.delete("REACT_ON_RAILS_SKIP_VALIDATION")
         print_generator_messages
       end
 

lib/react_on_rails/engine.rb

@@ -20,6 +20,12 @@ class Engine < ::Rails::Engine
     # Determine if version validation should be skipped
     # @return [Boolean] true if validation should be skipped
     def self.skip_version_validation?
+      # Skip if explicitly disabled via environment variable (set by generators)
+      if ENV["REACT_ON_RAILS_SKIP_VALIDATION"] == "true"
+        Rails.logger.debug "[React on Rails] Skipping validation - disabled via environment variable"
+        return true
+      end
+
       # Check package.json first as it's cheaper and handles more cases
       if package_json_missing?
         Rails.logger.debug "[React on Rails] Skipping validation - package.json not found"

spec/react_on_rails/engine_spec.rb

@@ -13,6 +13,26 @@ module ReactOnRails
         allow(Rails.logger).to receive(:debug)
       end
 
+      context "when REACT_ON_RAILS_SKIP_VALIDATION is set" do
+        before do
+          ENV["REACT_ON_RAILS_SKIP_VALIDATION"] = "true"
+        end
+
+        after do
+          ENV.delete("REACT_ON_RAILS_SKIP_VALIDATION")
+        end
+
+        it "returns true" do
+          expect(described_class.skip_version_validation?).to be true
+        end
+
+        it "logs debug message about environment variable" do
+          described_class.skip_version_validation?
+          expect(Rails.logger).to have_received(:debug)
+            .with("[React on Rails] Skipping validation - disabled via environment variable")
+        end
+      end
+
       context "when package.json doesn't exist" do
         before do
           allow(File).to receive(:exist?).with(package_json_path).and_return(false)