#7 Run bower only if bower.json is available

src/Handler.php

@@ -318,13 +318,13 @@ class Handler
   public function updateTheme($event, $update = FALSE)
   {
 
+    $fs = new Filesystem();
     $destination = $this->getInstallationPath();
 
     // We only do the fancy stuff for developers
     if ($event->isDevMode()) {
       $pluginRoot = $this->getInstallationManager()
         ->getInstallPath($this->getPackage('lakedrops/theme-d8-sass'));
-      $fs = new Filesystem();
       $finder = new Finder();
       $finder->ignoreDotFiles(FALSE);
 
@@ -363,7 +363,7 @@ class Handler
     }
 
     // Handle Bower if not installed globally
-    if (!$this->getOption('bower_assets')['global']) {
+    if (!$this->getOption('bower_assets')['global'] && $fs->exists($destination . DIRECTORY_SEPARATOR . 'bower.json')) {
       if ($update) {
         $this->bower('update');
       } else {