whenever.rb

# encoding: utf-8
#
# Tasks:
#
#   - vlad:whenever:update_crontab
#   - vlad:whenever:clear_crontab

namespace :vlad do

  namespace :whenever do

    set(:whenever_command)      { "#{bundle_cmd} exec whenever" }
    set(:whenever_identifier)   { application }
    set(:whenever_environment)  { rails_env }
    set(:whenever_variables)    { "environment=#{whenever_environment}" }
    set(:whenever_update_flags) { "--update-crontab #{whenever_identifier} --set #{whenever_variables}" }
    set(:whenever_clear_flags)  { "--clear-crontab #{whenever_identifier}" }

    desc <<-DESC
      Update application's crontab entries using Whenever. You can configure \
      the command used to invoke Whenever by setting the :whenever_command \
      variable, which can be used with Bundler to set the command to \
      "bundle exec whenever". You can configure the identifier used by setting \
      the :whenever_identifier variable, which defaults to the same value configured \
      for the :application variable. You can configure the environment by setting \
      the :whenever_environment variable, which defaults to the same value \
      configured for the :rails_env variable which itself defaults to "production". \
      Finally, you can completely override all arguments to the Whenever command \
      by setting the :whenever_update_flags variable. Additionally you can configure \
      which servers the crontab is updated on by setting the :whenever_roles variable.
    DESC
    remote_task :update_crontab, :roles => :app do
      puts '[Whenever] Update crontab'
      run "cd #{current_path} && #{whenever_command} #{whenever_update_flags}"
    end

    desc <<-DESC
      Clear application's crontab entries using Whenever. You can configure \
      the command used to invoke Whenever by setting the :whenever_command \
      variable, which can be used with Bundler to set the command to \
      "bundle exec whenever". You can configure the identifier used by setting \
      the :whenever_identifier variable, which defaults to the same value configured \
      for the :application variable. Finally, you can completely override all \
      arguments to the Whenever command by setting the :whenever_clear_flags variable. \
      Additionally you can configure which servers the crontab is cleared on by setting \
      the :whenever_roles variable.
    DESC
    remote_task :clear_crontab, :roles => :app do
      puts '[Whenever] Clear crontab'
      run "cd #{current_path} && #{whenever_command} #{whenever_clear_flags}"
    end

  end

end