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1 | 1 | # Don't change this file! |
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2 | 2 | # Configure your app in config/environment.rb and config/environments/*.rb |
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3 | 3 | |
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4 | RAILS_ROOT = "#{File.dirname(__FILE__)}/.." unless defined?(RAILS_ROOT) | |
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4 | RAILS_ROOT = File.expand_path("#{File.dirname(__FILE__)}/..") unless defined?(RAILS_ROOT) | |
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5 | 5 | |
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6 | 6 | module Rails |
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7 | 7 | class << self |
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8 | 8 | def boot! |
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9 | 9 | unless booted? |
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10 | 10 | preinitialize |
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11 | 11 | pick_boot.run |
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12 | 12 | end |
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13 | 13 | end |
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14 | 14 | |
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15 | 15 | def booted? |
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16 | 16 | defined? Rails::Initializer |
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17 | 17 | end |
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18 | 18 | |
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19 | 19 | def pick_boot |
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20 | 20 | (vendor_rails? ? VendorBoot : GemBoot).new |
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21 | 21 | end |
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22 | 22 | |
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23 | 23 | def vendor_rails? |
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24 | 24 | File.exist?("#{RAILS_ROOT}/vendor/rails") |
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25 | 25 | end |
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26 | 26 | |
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27 | 27 | def preinitialize |
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28 | 28 | load(preinitializer_path) if File.exist?(preinitializer_path) |
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29 | 29 | end |
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30 | 30 | |
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31 | 31 | def preinitializer_path |
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32 | 32 | "#{RAILS_ROOT}/config/preinitializer.rb" |
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33 | 33 | end |
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34 | 34 | end |
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35 | 35 | |
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36 | 36 | class Boot |
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37 | 37 | def run |
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38 | 38 | load_initializer |
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39 | 39 | Rails::Initializer.run(:set_load_path) |
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40 | 40 | end |
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41 | 41 | end |
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42 | 42 | |
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43 | 43 | class VendorBoot < Boot |
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44 | 44 | def load_initializer |
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45 | 45 | require "#{RAILS_ROOT}/vendor/rails/railties/lib/initializer" |
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46 | 46 | Rails::Initializer.run(:install_gem_spec_stubs) |
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47 | 47 | end |
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48 | 48 | end |
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49 | 49 | |
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50 | 50 | class GemBoot < Boot |
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51 | 51 | def load_initializer |
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52 | 52 | self.class.load_rubygems |
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53 | 53 | load_rails_gem |
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54 | 54 | require 'initializer' |
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55 | 55 | end |
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56 | 56 | |
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57 | 57 | def load_rails_gem |
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58 | 58 | if version = self.class.gem_version |
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59 | 59 | gem 'rails', version |
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60 | 60 | else |
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61 | 61 | gem 'rails' |
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62 | 62 | end |
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63 | 63 | rescue Gem::LoadError => load_error |
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64 | 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.) |
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65 | 65 | exit 1 |
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66 | 66 | end |
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67 | 67 | |
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68 | 68 | class << self |
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69 | 69 | def rubygems_version |
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70 | 70 | Gem::RubyGemsVersion if defined? Gem::RubyGemsVersion |
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71 | 71 | end |
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72 | 72 | |
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73 | 73 | def gem_version |
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74 | 74 | if defined? RAILS_GEM_VERSION |
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75 | 75 | RAILS_GEM_VERSION |
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76 | 76 | elsif ENV.include?('RAILS_GEM_VERSION') |
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77 | 77 | ENV['RAILS_GEM_VERSION'] |
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78 | 78 | else |
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79 | 79 | parse_gem_version(read_environment_rb) |
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80 | 80 | end |
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81 | 81 | end |
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82 | 82 | |
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83 | 83 | def load_rubygems |
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84 | 84 | require 'rubygems' |
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85 | 85 | |
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86 | 86 | unless rubygems_version >= '0.9.4' |
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87 | 87 | $stderr.puts %(Rails requires RubyGems >= 0.9.4 (you have #{rubygems_version}). Please `gem update --system` and try again.) |
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88 | 88 | exit 1 |
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89 | 89 | end |
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90 | 90 | |
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91 | 91 | rescue LoadError |
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92 | 92 | $stderr.puts %(Rails requires RubyGems >= 0.9.4. Please install RubyGems and try again: http://rubygems.rubyforge.org) |
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93 | 93 | exit 1 |
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94 | 94 | end |
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95 | 95 | |
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96 | 96 | def parse_gem_version(text) |
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97 | 97 | $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*["']([!~<>=]*\s*[\d.]+)["']/ |
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98 | 98 | end |
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99 | 99 | |
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100 | 100 | private |
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101 | 101 | def read_environment_rb |
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102 | 102 | File.read("#{RAILS_ROOT}/config/environment.rb") |
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103 | 103 | end |
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104 | 104 | end |
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105 | 105 | end |
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106 | 106 | end |
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107 | 107 | |
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108 | 108 | # All that for this: |
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109 | 109 | Rails.boot! |
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