Version bump to 0.0.2

.bundle/config

@@ -0,0 +1,2 @@
+--- 
+BUNDLE_DISABLE_SHARED_GEMS: "1"

.rvmrc

@@ -0,0 +1 @@
+rvm use 1.9.2@workless

Gemfile

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+source :gemcutter
+
+gem "heroku"
+gem "rush"

Gemfile.lock

@@ -0,0 +1,28 @@
+GEM
+  remote: http://rubygems.org/
+  specs:
+    configuration (1.1.0)
+    fattr (2.1.0)
+    heroku (1.10.8)
+      json_pure (>= 1.2.0, < 1.5.0)
+      launchy (~> 0.3.2)
+      rest-client (>= 1.4.0, < 1.7.0)
+    json_pure (1.4.6)
+    launchy (0.3.7)
+      configuration (>= 0.0.5)
+      rake (>= 0.8.1)
+    mime-types (1.16)
+    rake (0.8.7)
+    rest-client (1.6.1)
+      mime-types (>= 1.16)
+    rush (0.6.7)
+      session
+    session (3.1.0)
+      fattr
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  heroku
+  rush

Rakefile

@@ -1,16 +1,19 @@
 require 'rubygems'
 require 'rake'
+require 'bundler'
 
 begin
   require 'jeweler'
+
   Jeweler::Tasks.new do |gem|
     gem.name = "workless"
-    gem.summary = %Q{TODO: one-line summary of your gem}
-    gem.description = %Q{TODO: longer description of your gem}
+    gem.summary = %Q{Use delayed job workers only when theyre needed}
+    gem.description = %Q{Extension to Delayed Job to enable workers to scale up when needed}
     gem.email = "paul.crabtree@gmail.com"
     gem.homepage = "http://github.com/lostboy/workless"
     gem.authors = ["lostboy"]
     gem.add_development_dependency "thoughtbot-shoulda", ">= 0"
+    gem.add_bundler_dependencies
     # gem is a Gem::Specification... see http://www.rubygems.org/read/chapter/20 for additional settings
   end
   Jeweler::GemcutterTasks.new

VERSION

@@ -1 +1 @@
-0.0.1
+0.0.2

lib/workless.rb

@@ -0,0 +1,4 @@
+
+require File.dirname(__FILE__) + "/workless/scalers/base"
+require File.dirname(__FILE__) + "/workless/scaler"
+require File.dirname(__FILE__) + "/workless/railtie" if defined?(Rails::Railtie)

lib/workless/railtie.rb

@@ -0,0 +1,9 @@
+require 'rails'
+
+module Delayed
+  class Railtie < Rails::Railtie
+    initializer :after_initialize do
+      Delayed::Backend::ActiveRecord::Job.send(:include, Delayed::Workless::Scaler) if defined?(Delayed::Backend::ActiveRecord::Job)
+    end
+  end
+end

lib/workless/scaler.rb

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+module Delayed
+  module Workless 
+    module Scaler
+
+      def self.included(base)
+
+        base.send :extend, ClassMethods
+        base.class_eval do
+          after_destroy "self.class.scaler.down"
+          before_create "self.class.scaler.up"
+          after_update "self.class.scaler.down", :unless => Proc.new {|r| r.failed_at.nil? }
+        end
+
+      end
+
+      module ClassMethods
+        def scaler
+          @scaler ||= if ENV.include?("HEROKU_UPID")
+            require File.dirname(__FILE__) + "/scalers/heroku"
+            Scaler::Heroku.new
+          else
+            require File.dirname(__FILE__) + "/scalers/local"
+            Scaler::Local.new
+          end
+        end
+
+        def scaler=(scaler)
+          @scaler = scaler
+        end
+      end
+
+    end
+
+  end
+end

lib/workless/scalers/base.rb

@@ -0,0 +1,15 @@
+require 'delayed_job'
+
+module Delayed
+  module Workless
+    module Scaler
+
+      class Base
+        def jobs
+          Delayed::Job.where(:failed_at => nil)
+        end
+      end
+
+    end
+  end
+end

lib/workless/scalers/heroku.rb

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+require 'heroku'
+
+module Delayed
+  module Workless
+    module Scaler
+
+      class Heroku < Base
+
+        require "heroku"
+
+        def up
+          client.set_workers(ENV['APP_NAME'], 1) if workers == 0       
+        end
+
+        def down
+          client.set_workers(ENV['APP_NAME'], 0) unless workers == 0 or jobs.count > 0
+        end
+
+        def workers
+          client.info(ENV['APP_NAME'])[:workers].to_i
+        end
+
+        private
+
+        def client
+          @client ||= Heroku::Client.new(ENV['HEROKU_USER'], ENV['HEROKU_PASSWORD'])
+        end
+
+      end
+
+    end
+  end
+end

lib/workless/scalers/local.rb

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+require 'rush'
+
+module Delayed
+  module Workless
+    module Scaler
+
+      class Local < Base
+
+        def up
+          Rush::Box.new[Rails.root].bash("rake jobs:work", :background => true)
+          true
+        end
+
+        def down
+          Rush::Box.new.processes.filter(:cmdline => /rake jobs:work/).kill unless workers == 0 or jobs.count > 0
+          true
+        end
+
+        def workers
+          Rush::Box.new.processes.filter(:cmdline => /rake jobs:work/).size
+        end
+
+      end
+
+    end
+  end
+end

workless.gemspec

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+# Generated by jeweler
+# DO NOT EDIT THIS FILE DIRECTLY
+# Instead, edit Jeweler::Tasks in Rakefile, and run the gemspec command
+# -*- encoding: utf-8 -*-
+
+Gem::Specification.new do |s|
+  s.name = %q{workless}
+  s.version = "0.0.1"
+
+  s.required_rubygems_version = Gem::Requirement.new(">= 0") if s.respond_to? :required_rubygems_version=
+  s.authors = ["lostboy"]
+  s.date = %q{2010-09-30}
+  s.description = %q{Extension to Delayed Job to enable workers to scale up when needed}
+  s.email = %q{paul.crabtree@gmail.com}
+  s.extra_rdoc_files = [
+    "LICENSE",
+     "README.rdoc"
+  ]
+  s.files = [
+    ".document",
+     ".gitignore",
+     "LICENSE",
+     "README.rdoc",
+     "Rakefile",
+     "VERSION",
+     "lib/workless.rb",
+     "test/helper.rb",
+     "test/test_workless.rb"
+  ]
+  s.homepage = %q{http://github.com/lostboy/workless}
+  s.rdoc_options = ["--charset=UTF-8"]
+  s.require_paths = ["lib"]
+  s.rubygems_version = %q{1.3.7}
+  s.summary = %q{Use delayed job workers only when theyre needed}
+  s.test_files = [
+    "test/helper.rb",
+     "test/test_workless.rb"
+  ]
+
+  if s.respond_to? :specification_version then
+    current_version = Gem::Specification::CURRENT_SPECIFICATION_VERSION
+    s.specification_version = 3
+
+    if Gem::Version.new(Gem::VERSION) >= Gem::Version.new('1.2.0') then
+      s.add_development_dependency(%q<thoughtbot-shoulda>, [">= 0"])
+      s.add_runtime_dependency(%q<heroku>, [">= 0"])
+      s.add_runtime_dependency(%q<rush>, [">= 0"])
+    else
+      s.add_dependency(%q<thoughtbot-shoulda>, [">= 0"])
+      s.add_dependency(%q<heroku>, [">= 0"])
+      s.add_dependency(%q<rush>, [">= 0"])
+    end
+  else
+    s.add_dependency(%q<thoughtbot-shoulda>, [">= 0"])
+    s.add_dependency(%q<heroku>, [">= 0"])
+    s.add_dependency(%q<rush>, [">= 0"])
+  end
+end
+