Holy crap, it boots Rails3 and actually sends messages to the workers!

bin/client

@@ -0,0 +1,7 @@
+#!/usr/bin/env ruby
+
+require 'sidekiq'
+
+10.times do
+  Sidekiq::Client.push('foo', 'class' => 'HardWorker', 'args' => ['bob', 1])
+end

lib/sidekiq.rb

@@ -1,3 +1,2 @@
 require 'sidekiq/version'
-require 'sidekiq/util'
 require 'sidekiq/client'

lib/sidekiq/cli.rb

@@ -9,7 +9,7 @@ module Sidekiq
     def initialize
       parse_options
       validate!
-      enable_rails3 if File.exist?("config/application.rb")
+      boot_rails
     end
 
     def run
@@ -19,18 +19,21 @@ module Sidekiq
       begin
         log 'Starting processing, hit Ctrl-C to stop'
         server.start!
-        sleep 1_000_000_000
+        sleep 1000
       rescue Interrupt
         log 'Shutting down...'
         server.stop!
+        server.wait(:shutdown)
       end
     end
 
     private
 
-    def enable_rails3
+    def boot_rails
       #APP_PATH = File.expand_path('config/application.rb')
-      require File.expand_path('config/boot.rb')
+      ENV['RAILS_ENV'] = 'production'
+      require File.expand_path("#{@options[:rails]}/config/environment.rb")
+      Rails.application.config.threadsafe!
     end
 
     def validate!
@@ -40,6 +43,12 @@ module Sidekiq
         log @parser
         exit(1)
       end
+
+      if !File.exist?("#{@options[:rails]}/config/boot.rb")
+        log "========== Please point sidekiq to a Rails 3 application =========="
+        log @parser
+        exit(1)
+      end
     end
 
     def parse_options(argv=ARGV)
@@ -50,6 +59,7 @@ module Sidekiq
         :worker_count => 25,
         :server => 'redis://localhost:6379/0',
         :pidfile => nil,
+        :rails => '.',
       }
 
       @parser = OptionParser.new do |o|
@@ -76,6 +86,10 @@ module Sidekiq
           @options[:server] = arg
         end
 
+        o.on '-r', '--rails PATH', "Rails application with workers" do |arg|
+          @options[:rails] = arg
+        end
+
         o.on '-c', '--concurrency INT', "Worker threads to use" do |arg|
           @options[:worker_count] = arg.to_i
         end

lib/sidekiq/server.rb

@@ -2,6 +2,7 @@ require 'celluloid'
 require 'redis'
 require 'multi_json'
 
+require 'sidekiq/util'
 require 'sidekiq/worker'
 
 module Sidekiq
@@ -24,7 +25,7 @@ module Sidekiq
       @queues = options[:queues]
       @queue_idx = 0
       @queues_size = @queues.size
-      @redis = Redis.new(:host => options[:redis_host], :port => options[:redis_port])
+      @redis = Redis.connect(:url => location)
 
       @done = false
       @busy = []
@@ -39,9 +40,8 @@ module Sidekiq
       @ready.each(&:terminate)
       @ready.clear
 
-      after(30) do
-        @busy.each(&:terminate)
-        terminate
+      after(5) do
+        signal(:shutdown)
       end
     end
 
@@ -61,11 +61,14 @@ module Sidekiq
 
     def worker_died(worker, reason)
       @busy.delete(worker)
-      log "Worker death: #{reason}"
-      log reason.backtrace.join("\n") if reason
+
+      if reason
+        log "Worker death: #{reason}"
+        log reason.backtrace.join("\n")
+      end
 
       unless stopped?
-        @ready << Worker.new_link 
+        @ready << Worker.new_link
         dispatch
       end
     end

lib/sidekiq/worker.rb

@@ -1,3 +1,5 @@
+require 'active_support/inflector'
+
 module Sidekiq
   class Worker
     include Celluloid

myapp/.gitignore

@@ -0,0 +1,15 @@
+# See http://help.github.com/ignore-files/ for more about ignoring files.
+#
+# If you find yourself ignoring temporary files generated by your text editor
+# or operating system, you probably want to add a global ignore instead:
+#   git config --global core.excludesfile ~/.gitignore_global
+
+# Ignore bundler config
+/.bundle
+
+# Ignore the default SQLite database.
+/db/*.sqlite3
+
+# Ignore all logfiles and tempfiles.
+/log/*.log
+/tmp

myapp/Gemfile

@@ -0,0 +1,38 @@
+source 'https://rubygems.org'
+
+gem 'rails', '3.2.0'
+
+# Bundle edge Rails instead:
+# gem 'rails', :git => 'git://github.com/rails/rails.git'
+
+gem 'sqlite3'
+
+
+# Gems used only for assets and not required
+# in production environments by default.
+group :assets do
+  gem 'sass-rails',   '~> 3.2.3'
+  gem 'coffee-rails', '~> 3.2.1'
+
+  # See https://github.com/sstephenson/execjs#readme for more supported runtimes
+  # gem 'therubyracer'
+
+  gem 'uglifier', '>= 1.0.3'
+end
+
+gem 'jquery-rails'
+
+# To use ActiveModel has_secure_password
+# gem 'bcrypt-ruby', '~> 3.0.0'
+
+# To use Jbuilder templates for JSON
+# gem 'jbuilder'
+
+# Use unicorn as the web server
+# gem 'unicorn'
+
+# Deploy with Capistrano
+# gem 'capistrano'
+
+# To use debugger
+# gem 'ruby-debug19', :require => 'ruby-debug'

myapp/Gemfile.lock

@@ -0,0 +1,111 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    actionmailer (3.2.0)
+      actionpack (= 3.2.0)
+      mail (~> 2.4.0)
+    actionpack (3.2.0)
+      activemodel (= 3.2.0)
+      activesupport (= 3.2.0)
+      builder (~> 3.0.0)
+      erubis (~> 2.7.0)
+      journey (~> 1.0.0)
+      rack (~> 1.4.0)
+      rack-cache (~> 1.1)
+      rack-test (~> 0.6.1)
+      sprockets (~> 2.1.2)
+    activemodel (3.2.0)
+      activesupport (= 3.2.0)
+      builder (~> 3.0.0)
+    activerecord (3.2.0)
+      activemodel (= 3.2.0)
+      activesupport (= 3.2.0)
+      arel (~> 3.0.0)
+      tzinfo (~> 0.3.29)
+    activeresource (3.2.0)
+      activemodel (= 3.2.0)
+      activesupport (= 3.2.0)
+    activesupport (3.2.0)
+      i18n (~> 0.6)
+      multi_json (~> 1.0)
+    arel (3.0.0)
+    builder (3.0.0)
+    coffee-rails (3.2.1)
+      coffee-script (>= 2.2.0)
+      railties (~> 3.2.0.beta)
+    coffee-script (2.2.0)
+      coffee-script-source
+      execjs
+    coffee-script-source (1.2.0)
+    erubis (2.7.0)
+    execjs (1.3.0)
+      multi_json (~> 1.0)
+    hike (1.2.1)
+    i18n (0.6.0)
+    journey (1.0.0)
+    jquery-rails (2.0.0)
+      railties (>= 3.2.0.beta, < 5.0)
+      thor (~> 0.14)
+    json (1.6.5)
+    mail (2.4.1)
+      i18n (>= 0.4.0)
+      mime-types (~> 1.16)
+      treetop (~> 1.4.8)
+    mime-types (1.17.2)
+    multi_json (1.0.4)
+    polyglot (0.3.3)
+    rack (1.4.1)
+    rack-cache (1.1)
+      rack (>= 0.4)
+    rack-ssl (1.3.2)
+      rack
+    rack-test (0.6.1)
+      rack (>= 1.0)
+    rails (3.2.0)
+      actionmailer (= 3.2.0)
+      actionpack (= 3.2.0)
+      activerecord (= 3.2.0)
+      activeresource (= 3.2.0)
+      activesupport (= 3.2.0)
+      bundler (~> 1.0)
+      railties (= 3.2.0)
+    railties (3.2.0)
+      actionpack (= 3.2.0)
+      activesupport (= 3.2.0)
+      rack-ssl (~> 1.3.2)
+      rake (>= 0.8.7)
+      rdoc (~> 3.4)
+      thor (~> 0.14.6)
+    rake (0.9.2.2)
+    rdoc (3.12)
+      json (~> 1.4)
+    sass (3.1.12)
+    sass-rails (3.2.3)
+      railties (~> 3.2.0.beta)
+      sass (>= 3.1.10)
+      tilt (~> 1.3)
+    sprockets (2.1.2)
+      hike (~> 1.2)
+      rack (~> 1.0)
+      tilt (~> 1.1, != 1.3.0)
+    sqlite3 (1.3.5)
+    thor (0.14.6)
+    tilt (1.3.3)
+    treetop (1.4.10)
+      polyglot
+      polyglot (>= 0.3.1)
+    tzinfo (0.3.31)
+    uglifier (1.2.2)
+      execjs (>= 0.3.0)
+      multi_json (>= 1.0.2)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  coffee-rails (~> 3.2.1)
+  jquery-rails
+  rails (= 3.2.0)
+  sass-rails (~> 3.2.3)
+  sqlite3
+  uglifier (>= 1.0.3)

myapp/Rakefile

@@ -0,0 +1,7 @@
+#!/usr/bin/env rake
+# Add your own tasks in files placed in lib/tasks ending in .rake,
+# for example lib/tasks/capistrano.rake, and they will automatically be available to Rake.
+
+require File.expand_path('../config/application', __FILE__)
+
+Myapp::Application.load_tasks

myapp/app/controllers/application_controller.rb

@@ -0,0 +1,3 @@
+class ApplicationController < ActionController::Base
+  protect_from_forgery
+end

myapp/app/helpers/application_helper.rb

@@ -0,0 +1,2 @@
+module ApplicationHelper
+end

myapp/app/models/post.rb

@@ -0,0 +1,2 @@
+class Post < ActiveRecord::Base
+end

myapp/app/views/layouts/application.html.erb

@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Myapp</title>
+  <%= stylesheet_link_tag    "application", :media => "all" %>
+  <%= javascript_include_tag "application" %>
+  <%= csrf_meta_tags %>
+</head>
+<body>
+
+<%= yield %>
+
+</body>
+</html>

myapp/app/workers/hard_worker.rb

@@ -0,0 +1,6 @@
+class HardWorker
+  def perform(name, count)
+    print "#{Thread.current} Working hard\n"
+    sleep 3
+  end
+end

myapp/config.ru

@@ -0,0 +1,4 @@
+# This file is used by Rack-based servers to start the application.
+
+require ::File.expand_path('../config/environment',  __FILE__)
+run Myapp::Application

myapp/config/application.rb

@@ -0,0 +1,60 @@
+require File.expand_path('../boot', __FILE__)
+
+require 'rails/all'
+
+if defined?(Bundler)
+  # If you precompile assets before deploying to production, use this line
+  Bundler.require(*Rails.groups(:assets => %w(development test)))
+  # If you want your assets lazily compiled in production, use this line
+  # Bundler.require(:default, :assets, Rails.env)
+end
+
+module Myapp
+  class Application < Rails::Application
+    # Settings in config/environments/* take precedence over those specified here.
+    # Application configuration should go into files in config/initializers
+    # -- all .rb files in that directory are automatically loaded.
+
+    # Custom directories with classes and modules you want to be autoloadable.
+    # config.autoload_paths += %W(#{config.root}/extras)
+    config.autoload_paths += %W(#{config.root}/app/workers)
+
+    # Only load the plugins named here, in the order given (default is alphabetical).
+    # :all can be used as a placeholder for all plugins not explicitly named.
+    # config.plugins = [ :exception_notification, :ssl_requirement, :all ]
+
+    # Activate observers that should always be running.
+    # config.active_record.observers = :cacher, :garbage_collector, :forum_observer
+
+    # Set Time.zone default to the specified zone and make Active Record auto-convert to this zone.
+    # Run "rake -D time" for a list of tasks for finding time zone names. Default is UTC.
+    # config.time_zone = 'Central Time (US & Canada)'
+
+    # The default locale is :en and all translations from config/locales/*.rb,yml are auto loaded.
+    # config.i18n.load_path += Dir[Rails.root.join('my', 'locales', '*.{rb,yml}').to_s]
+    # config.i18n.default_locale = :de
+
+    # Configure the default encoding used in templates for Ruby 1.9.
+    config.encoding = "utf-8"
+
+    # Configure sensitive parameters which will be filtered from the log file.
+    config.filter_parameters += [:password]
+
+    # Use SQL instead of Active Record's schema dumper when creating the database.
+    # This is necessary if your schema can't be completely dumped by the schema dumper,
+    # like if you have constraints or database-specific column types
+    # config.active_record.schema_format = :sql
+
+    # Enforce whitelist mode for mass assignment.
+    # This will create an empty whitelist of attributes available for mass-assignment for all models
+    # in your app. As such, your models will need to explicitly whitelist or blacklist accessible
+    # parameters by using an attr_accessible or attr_protected declaration.
+    # config.active_record.whitelist_attributes = true
+
+    # Enable the asset pipeline
+    config.assets.enabled = true
+
+    # Version of your assets, change this if you want to expire all your assets
+    config.assets.version = '1.0'
+  end
+end

myapp/config/boot.rb

@@ -0,0 +1,6 @@
+require 'rubygems'
+
+# Set up gems listed in the Gemfile.
+ENV['BUNDLE_GEMFILE'] ||= File.expand_path('../../Gemfile', __FILE__)
+
+require 'bundler/setup' if File.exists?(ENV['BUNDLE_GEMFILE'])

myapp/config/database.yml

@@ -0,0 +1,25 @@
+# SQLite version 3.x
+#   gem install sqlite3
+#
+#   Ensure the SQLite 3 gem is defined in your Gemfile
+#   gem 'sqlite3'
+development:
+  adapter: sqlite3
+  database: db/development.sqlite3
+  pool: 5
+  timeout: 5000
+
+# Warning: The database defined as "test" will be erased and
+# re-generated from your development database when you run "rake".
+# Do not set this db to the same as development or production.
+test:
+  adapter: sqlite3
+  database: db/test.sqlite3
+  pool: 5
+  timeout: 5000
+
+production:
+  adapter: sqlite3
+  database: db/production.sqlite3
+  pool: 5
+  timeout: 5000

myapp/config/environment.rb

@@ -0,0 +1,5 @@
+# Load the rails application
+require File.expand_path('../application', __FILE__)
+
+# Initialize the rails application
+Myapp::Application.initialize!

myapp/config/environments/development.rb

@@ -0,0 +1,37 @@
+Myapp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # In the development environment your application's code is reloaded on
+  # every request. This slows down response time but is perfect for development
+  # since you don't have to restart the web server when you make code changes.
+  config.cache_classes = false
+
+  # Log error messages when you accidentally call methods on nil.
+  config.whiny_nils = true
+
+  # Show full error reports and disable caching
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
+
+  # Don't care if the mailer can't send
+  config.action_mailer.raise_delivery_errors = false
+
+  # Print deprecation notices to the Rails logger
+  config.active_support.deprecation = :log
+
+  # Only use best-standards-support built into browsers
+  config.action_dispatch.best_standards_support = :builtin
+
+  # Raise exception on mass assignment protection for Active Record models
+  config.active_record.mass_assignment_sanitizer = :strict
+
+  # Log the query plan for queries taking more than this (works
+  # with SQLite, MySQL, and PostgreSQL)
+  config.active_record.auto_explain_threshold_in_seconds = 0.5
+
+  # Do not compress assets
+  config.assets.compress = false
+
+  # Expands the lines which load the assets
+  config.assets.debug = true
+end

myapp/config/environments/production.rb

@@ -0,0 +1,67 @@
+Myapp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # Code is not reloaded between requests
+  config.cache_classes = true
+
+  # Full error reports are disabled and caching is turned on
+  config.consider_all_requests_local       = false
+  config.action_controller.perform_caching = true
+
+  # Disable Rails's static asset server (Apache or nginx will already do this)
+  config.serve_static_assets = false
+
+  # Compress JavaScripts and CSS
+  config.assets.compress = true
+
+  # Don't fallback to assets pipeline if a precompiled asset is missed
+  config.assets.compile = false
+
+  # Generate digests for assets URLs
+  config.assets.digest = true
+
+  # Defaults to Rails.root.join("public/assets")
+  # config.assets.manifest = YOUR_PATH
+
+  # Specifies the header that your server uses for sending files
+  # config.action_dispatch.x_sendfile_header = "X-Sendfile" # for apache
+  # config.action_dispatch.x_sendfile_header = 'X-Accel-Redirect' # for nginx
+
+  # Force all access to the app over SSL, use Strict-Transport-Security, and use secure cookies.
+  # config.force_ssl = true
+
+  # See everything in the log (default is :info)
+  # config.log_level = :debug
+
+  # Prepend all log lines with the following tags
+  # config.log_tags = [ :subdomain, :uuid ]
+
+  # Use a different logger for distributed setups
+  # config.logger = ActiveSupport::TaggedLogging.new(SyslogLogger.new)
+
+  # Use a different cache store in production
+  # config.cache_store = :mem_cache_store
+
+  # Enable serving of images, stylesheets, and JavaScripts from an asset server
+  # config.action_controller.asset_host = "http://assets.example.com"
+
+  # Precompile additional assets (application.js, application.css, and all non-JS/CSS are already added)
+  # config.assets.precompile += %w( search.js )
+
+  # Disable delivery errors, bad email addresses will be ignored
+  # config.action_mailer.raise_delivery_errors = false
+
+  # Enable threaded mode
+  # config.threadsafe!
+
+  # Enable locale fallbacks for I18n (makes lookups for any locale fall back to
+  # the I18n.default_locale when a translation can not be found)
+  config.i18n.fallbacks = true
+
+  # Send deprecation notices to registered listeners
+  config.active_support.deprecation = :notify
+
+  # Log the query plan for queries taking more than this (works
+  # with SQLite, MySQL, and PostgreSQL)
+  # config.active_record.auto_explain_threshold_in_seconds = 0.5
+end

myapp/config/environments/test.rb

@@ -0,0 +1,37 @@
+Myapp::Application.configure do
+  # Settings specified here will take precedence over those in config/application.rb
+
+  # The test environment is used exclusively to run your application's
+  # test suite. You never need to work with it otherwise. Remember that
+  # your test database is "scratch space" for the test suite and is wiped
+  # and recreated between test runs. Don't rely on the data there!
+  config.cache_classes = true
+
+  # Configure static asset server for tests with Cache-Control for performance
+  config.serve_static_assets = true
+  config.static_cache_control = "public, max-age=3600"
+
+  # Log error messages when you accidentally call methods on nil
+  config.whiny_nils = true
+
+  # Show full error reports and disable caching
+  config.consider_all_requests_local       = true
+  config.action_controller.perform_caching = false
+
+  # Raise exceptions instead of rendering exception templates
+  config.action_dispatch.show_exceptions = false
+
+  # Disable request forgery protection in test environment
+  config.action_controller.allow_forgery_protection    = false
+
+  # Tell Action Mailer not to deliver emails to the real world.
+  # The :test delivery method accumulates sent emails in the
+  # ActionMailer::Base.deliveries array.
+  config.action_mailer.delivery_method = :test
+
+  # Raise exception on mass assignment protection for Active Record models
+  config.active_record.mass_assignment_sanitizer = :strict
+
+  # Print deprecation notices to the stderr
+  config.active_support.deprecation = :stderr
+end

myapp/config/initializers/backtrace_silencers.rb

@@ -0,0 +1,7 @@
+# Be sure to restart your server when you modify this file.
+
+# You can add backtrace silencers for libraries that you're using but don't wish to see in your backtraces.
+# Rails.backtrace_cleaner.add_silencer { |line| line =~ /my_noisy_library/ }
+
+# You can also remove all the silencers if you're trying to debug a problem that might stem from framework code.
+# Rails.backtrace_cleaner.remove_silencers!

myapp/config/initializers/inflections.rb

@@ -0,0 +1,15 @@
+# Be sure to restart your server when you modify this file.
+
+# Add new inflection rules using the following format
+# (all these examples are active by default):
+# ActiveSupport::Inflector.inflections do |inflect|
+#   inflect.plural /^(ox)$/i, '\1en'
+#   inflect.singular /^(ox)en/i, '\1'
+#   inflect.irregular 'person', 'people'
+#   inflect.uncountable %w( fish sheep )
+# end
+#
+# These inflection rules are supported but not enabled by default:
+# ActiveSupport::Inflector.inflections do |inflect|
+#   inflect.acronym 'RESTful'
+# end

myapp/config/initializers/mime_types.rb

@@ -0,0 +1,5 @@
+# Be sure to restart your server when you modify this file.
+
+# Add new mime types for use in respond_to blocks:
+# Mime::Type.register "text/richtext", :rtf
+# Mime::Type.register_alias "text/html", :iphone

myapp/config/initializers/secret_token.rb

@@ -0,0 +1,7 @@
+# Be sure to restart your server when you modify this file.
+
+# Your secret key for verifying the integrity of signed cookies.
+# If you change this key, all old signed cookies will become invalid!
+# Make sure the secret is at least 30 characters and all random,
+# no regular words or you'll be exposed to dictionary attacks.
+Myapp::Application.config.secret_token = 'bdd335500c81ba1f279f9dd8198d1f334445d0193168ed73c1282502180dca27e3e102ec345e99b2acac6a63f7fe29da69c60cc9e76e8da34fb5d4989db24cd8'

myapp/config/initializers/session_store.rb

@@ -0,0 +1,8 @@
+# Be sure to restart your server when you modify this file.
+
+Myapp::Application.config.session_store :cookie_store, key: '_myapp_session'
+
+# Use the database for sessions instead of the cookie-based default,
+# which shouldn't be used to store highly confidential information
+# (create the session table with "rails generate session_migration")
+# Myapp::Application.config.session_store :active_record_store

myapp/config/initializers/wrap_parameters.rb

@@ -0,0 +1,14 @@
+# Be sure to restart your server when you modify this file.
+#
+# This file contains settings for ActionController::ParamsWrapper which
+# is enabled by default.
+
+# Enable parameter wrapping for JSON. You can disable this by setting :format to an empty array.
+ActiveSupport.on_load(:action_controller) do
+  wrap_parameters format: [:json]
+end
+
+# Disable root element in JSON by default.
+ActiveSupport.on_load(:active_record) do
+  self.include_root_in_json = false
+end

myapp/config/locales/en.yml

@@ -0,0 +1,5 @@
+# Sample localization file for English. Add more files in this directory for other locales.
+# See https://github.com/svenfuchs/rails-i18n/tree/master/rails%2Flocale for starting points.
+
+en:
+  hello: "Hello world"

myapp/config/routes.rb

@@ -0,0 +1,58 @@
+Myapp::Application.routes.draw do
+  # The priority is based upon order of creation:
+  # first created -> highest priority.
+
+  # Sample of regular route:
+  #   match 'products/:id' => 'catalog#view'
+  # Keep in mind you can assign values other than :controller and :action
+
+  # Sample of named route:
+  #   match 'products/:id/purchase' => 'catalog#purchase', :as => :purchase
+  # This route can be invoked with purchase_url(:id => product.id)
+
+  # Sample resource route (maps HTTP verbs to controller actions automatically):
+  #   resources :products
+
+  # Sample resource route with options:
+  #   resources :products do
+  #     member do
+  #       get 'short'
+  #       post 'toggle'
+  #     end
+  #
+  #     collection do
+  #       get 'sold'
+  #     end
+  #   end
+
+  # Sample resource route with sub-resources:
+  #   resources :products do
+  #     resources :comments, :sales
+  #     resource :seller
+  #   end
+
+  # Sample resource route with more complex sub-resources
+  #   resources :products do
+  #     resources :comments
+  #     resources :sales do
+  #       get 'recent', :on => :collection
+  #     end
+  #   end
+
+  # Sample resource route within a namespace:
+  #   namespace :admin do
+  #     # Directs /admin/products/* to Admin::ProductsController
+  #     # (app/controllers/admin/products_controller.rb)
+  #     resources :products
+  #   end
+
+  # You can have the root of your site routed with "root"
+  # just remember to delete public/index.html.
+  # root :to => 'welcome#index'
+
+  # See how all your routes lay out with "rake routes"
+
+  # This is a legacy wild controller route that's not recommended for RESTful applications.
+  # Note: This route will make all actions in every controller accessible via GET requests.
+  # match ':controller(/:action(/:id))(.:format)'
+end

myapp/db/migrate/20120123214055_create_posts.rb

@@ -0,0 +1,10 @@
+class CreatePosts < ActiveRecord::Migration
+  def change
+    create_table :posts do |t|
+      t.string :title
+      t.string :body
+
+      t.timestamps
+    end
+  end
+end

myapp/db/seeds.rb

@@ -0,0 +1,7 @@
+# This file should contain all the record creation needed to seed the database with its default values.
+# The data can then be loaded with the rake db:seed (or created alongside the db with db:setup).
+#
+# Examples:
+#
+#   cities = City.create([{ name: 'Chicago' }, { name: 'Copenhagen' }])
+#   Mayor.create(name: 'Emanuel', city: cities.first)

myapp/script/rails

@@ -0,0 +1,6 @@
+#!/usr/bin/env ruby
+# This command will automatically be run when you run "rails" with Rails 3 gems installed from the root of your application.
+
+APP_PATH = File.expand_path('../../config/application',  __FILE__)
+require File.expand_path('../../config/boot',  __FILE__)
+require 'rails/commands'