source: subversion/sites/rails_port/config/boot.rb @ 15488

Last change on this file since 15488 was 14974, checked in by Shaun McDonald, 11 years ago

Updating for rails 2.2.2

File size: 2.7 KB
Line 
1# Don't change this file!
2# Configure your app in config/environment.rb and config/environments/*.rb
3
4RAILS_ROOT = "#{File.dirname(__FILE__)}/.." unless defined?(RAILS_ROOT)
5
6module Rails
7  class << self
8    def boot!
9      unless booted?
10        preinitialize
11        pick_boot.run
12      end
13    end
14
15    def booted?
16      defined? Rails::Initializer
17    end
18
19    def pick_boot
20      (vendor_rails? ? VendorBoot : GemBoot).new
21    end
22
23    def vendor_rails?
24      File.exist?("#{RAILS_ROOT}/vendor/rails")
25    end
26
27    def preinitialize
28      load(preinitializer_path) if File.exist?(preinitializer_path)
29    end
30
31    def preinitializer_path
32      "#{RAILS_ROOT}/config/preinitializer.rb"
33    end
34  end
35
36  class Boot
37    def run
38      load_initializer
39      Rails::Initializer.run(:set_load_path)
40    end
41  end
42
43  class VendorBoot < Boot
44    def load_initializer
45      require "#{RAILS_ROOT}/vendor/rails/railties/lib/initializer"
46      Rails::Initializer.run(:install_gem_spec_stubs)
47    end
48  end
49
50  class GemBoot < Boot
51    def load_initializer
52      self.class.load_rubygems
53      load_rails_gem
54      require 'initializer'
55    end
56
57    def load_rails_gem
58      if version = self.class.gem_version
59        gem 'rails', version
60      else
61        gem 'rails'
62      end
63    rescue Gem::LoadError => load_error
64      $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.)
65      exit 1
66    end
67
68    class << self
69      def rubygems_version
70        Gem::RubyGemsVersion rescue nil
71      end
72
73      def gem_version
74        if defined? RAILS_GEM_VERSION
75          RAILS_GEM_VERSION
76        elsif ENV.include?('RAILS_GEM_VERSION')
77          ENV['RAILS_GEM_VERSION']
78        else
79          parse_gem_version(read_environment_rb)
80        end
81      end
82
83      def load_rubygems
84        require 'rubygems'
85        min_version = '1.3.1'
86        unless rubygems_version >= min_version
87          $stderr.puts %Q(Rails requires RubyGems >= #{min_version} (you have #{rubygems_version}). Please `gem update --system` and try again.)
88          exit 1
89        end
90
91      rescue LoadError
92        $stderr.puts %Q(Rails requires RubyGems >= #{min_version}. Please install RubyGems and try again: http://rubygems.rubyforge.org)
93        exit 1
94      end
95
96      def parse_gem_version(text)
97        $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*["']([!~<>=]*\s*[\d.]+)["']/
98      end
99
100      private
101        def read_environment_rb
102          File.read("#{RAILS_ROOT}/config/environment.rb")
103        end
104    end
105  end
106end
107
108# All that for this:
109Rails.boot!
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