delete preview bulletins at 02:43 daily, using ruby process rather than cronjob

announcement.gemspec

@@ -16,4 +16,6 @@ Gem::Specification.new do |s|
 
   s.files = Dir["{app,config,db,lib}/**/*", "MIT-LICENSE", "Rakefile", "README.rdoc"]
   s.test_files = Dir["test/**/*"]
+
+  s.add_dependency "rufus-scheduler", "~> 3.6.0"
 end

config/initializers/scheduler.rb

@@ -0,0 +1,9 @@
+require 'rufus-scheduler'
+
+scheduler = Rufus::Scheduler.new
+
+#return if defined?(Rails::Console) || Rails.env.test? || File.split($0).last == 'rake'
+
+scheduler.cron '43 2 * * *' do
+  system('bundle exec rake bulletin:remove_preview_bulletins')
+end