loud boot.rb
[has_many_polymorphs.git] / test / integration / app / config / boot.rb
blobcb9a72dad7b7df3192ceb41f5a94081e85878ae7
1 # Don't change this file!
2 # Configure your app in config/environment.rb and config/environments/*.rb
4 RAILS_ROOT = "#{File.dirname(__FILE__)}/.." unless defined?(RAILS_ROOT)
6 module Rails
7   class << self
8     def boot!
9       unless booted?
10         preinitialize
11         pick_boot.run
12       end
13     end
15     def booted?
16       defined? Rails::Initializer
17     end
19     def pick_boot
20       (vendor_rails? ? VendorBoot : GemBoot).new
21     end
23     def vendor_rails?
24       File.exist?("#{RAILS_ROOT}/vendor/rails")
25     end
27     def preinitialize
28       load(preinitializer_path) if File.exists?(preinitializer_path)
29     end
31     def preinitializer_path
32       "#{RAILS_ROOT}/config/preinitializer.rb"
33     end
34   end
36   class Boot
37     def run
38       load_initializer
39       Rails::Initializer.run(:set_load_path)
40     end
41   end
43   class VendorBoot < Boot
44     def load_initializer
45       require "#{RAILS_ROOT}/vendor/rails/railties/lib/initializer"
46     end
47   end
49   class GemBoot < Boot
50     def load_initializer
51       self.class.load_rubygems
52       load_rails_gem
53       require 'initializer'
54     end
56     def load_rails_gem
57       if version = self.class.gem_version
58         STDERR.puts "Boot.rb loading version #{version}"
59         gem 'rails', version
60       else
61         STDERR.puts "Boot.rb loading latest available version"
62         gem 'rails'
63       end
64     rescue Gem::LoadError => load_error
65       $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.)
66       exit 1
67     end
69     class << self
70       def rubygems_version
71         Gem::RubyGemsVersion if defined? Gem::RubyGemsVersion
72       end
74       def gem_version
75         if defined? RAILS_GEM_VERSION
76           RAILS_GEM_VERSION
77         elsif ENV.include?('RAILS_GEM_VERSION')
78           ENV['RAILS_GEM_VERSION']
79         else
80           parse_gem_version(read_environment_rb)
81         end
82       end
84       def load_rubygems
85         require 'rubygems'
87         unless rubygems_version >= '0.9.4'
88           $stderr.puts %(Rails requires RubyGems >= 0.9.4 (you have #{rubygems_version}). Please `gem update --system` and try again.)
89           exit 1
90         end
92       rescue LoadError
93         $stderr.puts %(Rails requires RubyGems >= 0.9.4. Please install RubyGems and try again: http://rubygems.rubyforge.org)
94         exit 1
95       end
97       def parse_gem_version(text)
98         $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*'([!~<>=]*\s*[\d.]+)'/
99       end
101       private
102         def read_environment_rb
103           File.read("#{RAILS_ROOT}/config/environment.rb")
104         end
105     end
106   end
109 # All that for this:
110 Rails.boot!