Allow creation of new job types from within schedule.rb. Not only doe…

…s this make it easier to define app-specific job types such as the new rails 3 runner, or jobs which need to run under bundler, but it also allows the user to create reusable system commands rather than using the :command method every time.

lib/whenever.rb

@@ -23,6 +23,7 @@
 require 'whenever/base'
 require 'whenever/job_list'
 require 'whenever/job_types/default'
+require 'whenever/job_types/user_defined'
 require 'whenever/job_types/rake_task'
 require 'whenever/job_types/runner'
 require 'whenever/outputs/cron'

lib/whenever/job_list.rb

@@ -47,6 +47,19 @@ def command(task, options = {})
       @jobs[@current_time_scope] << options[:class].new(@options.merge(:task => task).merge(options))
     end
 
+    def job_type(name, options = {}, &block)
+      (class << self; self; end).class_eval do
+        define_method(name) do |task|
+          new_job = Whenever::Job::UserDefined.new
+          block.call(new_job)
+          options = new_job.to_options
+          options.reverse_merge!(:environment => @environment, :path => @path)
+          options[:class] = Whenever::Job::UserDefined
+          command(task, options)
+        end
+      end
+    end
+
     def runner(task, options = {})
       options.reverse_merge!(:environment => @environment, :path => @path)
       options[:class] = Whenever::Job::Runner

lib/whenever/job_types/runner.rb

@@ -4,7 +4,7 @@ class Runner < Whenever::Job::Default
 
       def output
         path_required
-        %Q(cd #{File.join(@path)} && bundle exec rails runner -e #{@environment} #{task.inspect})
+        %Q(cd #{File.join(@path)} && script/runner -e #{@environment} #{task.inspect})
       end
 
     end

lib/whenever/job_types/user_defined.rb

@@ -0,0 +1,29 @@
+module Whenever
+  module Job
+    class UserDefined < Whenever::Job::Default
+      attr_accessor :uses_bundler, :command, :environment
+
+      def initialize(options={})
+        super
+        @uses_bundler = options[:uses_bundler]
+        @command      = options[:command]
+        @env          = options[:environment]
+      end
+
+      def to_options
+        { :uses_bundler => uses_bundler, :command => command, :environment => environment }
+      end
+
+      def output
+        out = []
+        out << "cd #{File.join(@path)} &&"
+        out << "bundle exec" if uses_bundler
+        out << command
+        out << "-e #{@environment}" if @env
+        out << task.inspect
+        out.join(" ")
+      end
+
+    end
+  end
+end