config.rb

# Rotate log files (50 files max at 1MB each)
log_path = '#{Rails.root}/log/#{Rails.env}.log'

# Alter the application file with new configs
gsub_file 'config/application.rb', /# Custom directories with classes and modules you want to be autoloadable./ , %{
    config.logger = Logger.new(\"#{log_path}\", 50, 1048576)
    config.autoload_paths += %W(\#{config.root}/lib)
}