lib/ember_cli/shell.rb in ember-cli-rails-0.7.3 vs lib/ember_cli/shell.rb in ember-cli-rails-0.7.4

@@ -55,23 +55,23 @@
     attr_reader :ember, :env, :options, :paths
 
     delegate :run, :run!, to: :runner
 
     def invalid_ember_dependencies?
-      !run("#{paths.ember} version")
+      !run("#{paths.ember} version").success?
     rescue DependencyError
       false
     end
 
     def clean_ember_dependencies!
-      ember_dependency_directories.select(&:exist?).each(&:rmtree)
+      ember_dependency_directories.flat_map(&:children).each(&:rmtree)
     end
 
     def ember_dependency_directories
       [
         paths.node_modules,
         paths.bower_components,
-      ]
+      ].select(&:exist?)
     end
 
     def spawn(command)
       Kernel.spawn(
         env,