#164 Cron in Ruby (revised)

Dec 29, 2011 | 6 minutes | Tools, Plugins, Deployment, Background Jobs

Cron is a common solution for recurring jobs, but it has a confusing syntax. In this episode I show you how to use Whenever to create cron jobs using Ruby. Some alternative scheduling solutions are also mentioned.

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Resources

terminal

bundle
bundle exec wheneverize
bundle exec whenever

Gemfile

gem 'whenever', require: false

config/schedule.rb

set :output, "#{path}/log/cron.log"
job_type :script, "'#{path}/script/:task' :output"
every 15.minutes do
 command "rm '#{path}/tmp/cache/foo.txt'"
 script "generate_report"
end
every :sunday, at: "4:28 AM" do
 runner "Cart.clear_abandoned"
end
every :reboot do
 rake "ts:start"
end

config/deploy.rb

set :whenever_command, "bundle exec whenever"
require "whenever/capistrano"