lib/webpacker/railtie.rb in webpacker-3.2.0 vs lib/webpacker/railtie.rb in webpacker-3.2.1

@@ -23,20 +23,22 @@
   #    to turn on:
   #     - edit config/environments/production.rb
   #     - add `config.webpacker.check_yarn_integrity = false`
   initializer "webpacker.yarn_check" do |app|
     if File.exist?("yarn.lock") && app.config.webpacker.check_yarn_integrity
-      ok = system("yarn check --integrity")
+      output = `yarn check --integrity 2>&1`
 
-      if !ok
+      unless $?.success?
         warn "\n\n"
         warn "========================================"
         warn "  Your Yarn packages are out of date!"
         warn "  Please run `yarn install` to update."
         warn "========================================"
         warn "\n\n"
         warn "To disable this check, please add `config.webpacker.check_yarn_integrity = false`"
         warn "to your Rails development config file (config/environments/development.rb)."
+        warn "\n\n"
+        warn output
         warn "\n\n"
 
         exit(1)
       end
     end