lib/tasks/assets.rake
namespace :assets do
# Because of config.assets.initialize_on_precompile = false,
# must load i18n manually
task :i18n_environment do
require Rails.root.join('app/models/settings')
I18n.locale = Settings.default_locale
I18n.load_path += Dir[Rails.root.join('config/locales/*.yml')]
end
task :environment => :i18n_environment
end