How can I disable logging of asset pipeline (sprockets) messages in Ruby on Rails 3.1?
Place the following code in config/initializers/quiet_assets.rb
if Rails.env.development? Rails.application.assets.try(:logger=, Logger.new('/dev/null')) Rails::Rack::Logger.class_eval do def call_with_quiet_assets(env) previous_level = Rails.logger.level Rails.logger.level = Logger::ERROR if env['PATH_INFO'] =~ %r{^/assets/} call_without_quiet_assets(env) ensure Rails.logger.level = previous_level end alias_method_chain :call, :quiet_assets endendUpdated: It now works for Ruby on Rails 3.2 too (previous attempt fixes before_dispatch, and now we're going for the root rack call instead)
Update: A proper Rack middleware solution (instead of fragile alias_method_chain) from @macournoyer https://github.com/rails/rails/issues/2639#issuecomment-6591735
Take a look at https://github.com/evrone/quiet_assets and just include it into your Gem file.
For the lazy: gem 'quiet_assets', group: :development
For Ruby on Rails 3.2, add config.assets.logger = false to your development environment configuration file, typically found at config/environments/development.rb. See #4512.