test/rails/app-2.2.2/config/boot.rb

   1 # -*- encoding: binary -*-
   2
   3 # Don't change this file!
   4 # Configure your app in config/environment.rb and config/environments/*.rb
   5
   6 RAILS_ROOT = "#{File.dirname(__FILE__)}/.." unless defined?(RAILS_ROOT)
   7
   8 module Rails
   9   class << self
  10     def boot!
  11       unless booted?
  12         preinitialize
  13         pick_boot.run
  14       end
  15     end
  16
  17     def booted?
  18       defined? Rails::Initializer
  19     end
  20
  21     def pick_boot
  22       (vendor_rails? ? VendorBoot : GemBoot).new
  23     end
  24
  25     def vendor_rails?
  26       File.exist?("#{RAILS_ROOT}/vendor/rails")
  27     end
  28
  29     def preinitialize
  30       load(preinitializer_path) if File.exist?(preinitializer_path)
  31     end
  32
  33     def preinitializer_path
  34       "#{RAILS_ROOT}/config/preinitializer.rb"
  35     end
  36   end
  37
  38   class Boot
  39     def run
  40       load_initializer
  41       Rails::Initializer.run(:set_load_path)
  42     end
  43   end
  44
  45   class VendorBoot < Boot
  46     def load_initializer
  47       require "#{RAILS_ROOT}/vendor/rails/railties/lib/initializer"
  48       Rails::Initializer.run(:install_gem_spec_stubs)
  49     end
  50   end
  51
  52   class GemBoot < Boot
  53     def load_initializer
  54       self.class.load_rubygems
  55       load_rails_gem
  56       require 'initializer'
  57     end
  58
  59     def load_rails_gem
  60       if version = self.class.gem_version
  61         gem 'rails', version
  62       else
  63         gem 'rails'
  64       end
  65     rescue Gem::LoadError => load_error
  66       $stderr.puts %(Missing the Rails #{version} gem. Please `gem install -v=#{version} rails`, update your RAILS_GEM_VERSION setting in config/environment.rb for the Rails version you do have installed, or comment out RAILS_GEM_VERSION to use the latest version installed.)
  67       exit 1
  68     end
  69
  70     class << self
  71       def rubygems_version
  72         Gem::RubyGemsVersion rescue nil
  73       end
  74
  75       def gem_version
  76         if defined? RAILS_GEM_VERSION
  77           RAILS_GEM_VERSION
  78         elsif ENV.include?('RAILS_GEM_VERSION')
  79           ENV['RAILS_GEM_VERSION']
  80         else
  81           parse_gem_version(read_environment_rb)
  82         end
  83       end
  84
  85       def load_rubygems
  86         require 'rubygems'
  87         min_version = '1.3.1'
  88         unless rubygems_version >= min_version
  89           $stderr.puts %Q(Rails requires RubyGems >= #{min_version} (you have #{rubygems_version}). Please `gem update --system` and try again.)
  90           exit 1
  91         end
  92
  93       rescue LoadError
  94         $stderr.puts %Q(Rails requires RubyGems >= #{min_version}. Please install RubyGems and try again: http://rubygems.rubyforge.org)
  95         exit 1
  96       end
  97
  98       def parse_gem_version(text)
  99         $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*["']([!~<>=]*\s*[\d.]+)["']/
 100       end
 101
 102       private
 103         def read_environment_rb
 104           File.read("#{RAILS_ROOT}/config/environment.rb")
 105         end
 106     end
 107   end
 108 end
 109
 110 # All that for this:
 111 Rails.boot!