require ::File.expand_path('../config/environment', __FILE__)
run Myapps::Application

source 'https://ruby.taobao.org/'

gem 'rails', '3.2.1'
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'
 gem 'uglifier', '>= 1.0.3'
end

gem 'jquery-rails'
gem ... ...

.
├── app
│  ├── assets
│  │  ├── images
│  │  │  └── rails.png
│  │  ├── javascripts
│  │  │  └── application.js
│  │  └── stylesheets
│  │    └── application.css
│  ├── controllers
│  │  └── application_controller.rb
│  ├── helpers
│  │  └── application_helper.rb
│  ├── mailers
│  ├── models
│  └── views
│    └── layouts
│      └── application.html.erb
├── config
│  ├── application.rb
│  ├── boot.rb
│  ├── database.yml
│  ├── environment.rb
│  ├── environments
│  │  ├── development.rb
│  │  ├── production.rb
│  │  └── test.rb
│  ├── initializers
│  │  ├── backtrace_silencers.rb
│  │  ├── inflections.rb
│  │  ├── mime_types.rb
│  │  ├── secret_token.rb
│  │  ├── session_store.rb
│  │  └── wrap_parameters.rb
│  ├── locales
│  │  └── en.yml
│  └── routes.rb
├── config.ru
├── db
│  └── seeds.rb
├── doc
│  └── README_FOR_APP
├── Gemfile
├── lib
│  ├── assets
│  └── tasks
├── log
├── public
│  ├── 404.html
│  ├── 422.html
│  ├── 500.html
│  ├── favicon.ico
│  ├── index.html
│  └── robots.txt
├── Rakefile
├── README.rdoc
├── script
│  └── rails
├── test
│  ├── fixtures
│  ├── functional
│  ├── integration
│  ├── performance
│  │  └── browsing_test.rb
│  ├── test_helper.rb
│  └── unit
├── tmp
│  └── cache
│    └── assets
└── vendor
  ├── assets
  │  ├── javascripts
  │  └── stylesheets
  └── plugins

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'])

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 Myapps
 class Application < Rails::Application
  # Settings in config/environments/* take precedence over those specified here.
  # Application configuration should go into files in config/initializers
  # ... ...

  # 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]

  # ... ...

  # 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
environment.rb 执行所有启动程序(initializers)，这个文件同样由Rails产生，不需要修改。
# Load the rails application
require File.expand_path('../application', __FILE__)

# Initialize the rails application
Myapps::Application.initialize!