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-rw-r--r--railties/lib/rails/engine.rb4
1 files changed, 3 insertions, 1 deletions
diff --git a/railties/lib/rails/engine.rb b/railties/lib/rails/engine.rb
index 23177df11f..1c4e5dadc7 100644
--- a/railties/lib/rails/engine.rb
+++ b/railties/lib/rails/engine.rb
@@ -434,7 +434,7 @@ module Rails
def routes
@routes ||= ActionDispatch::Routing::RouteSet.new
- @routes.add_route(assets, {}, {}, {}, nil, false)
+ @routes.add_route(assets, {}, {}, {}, nil, false) if config.use_sprockets
@routes.append(&Proc.new) if block_given?
@routes
end
@@ -458,6 +458,8 @@ module Rails
end
def build_asset_environment
+ return nil if !use_sprockets
+
require 'sprockets'
env = Sprockets::Environment.new(root.to_s)