From d5dae2412b0045bac635403095ccc0aacb5356df Mon Sep 17 00:00:00 2001 From: Neil Smith Date: Fri, 17 Jul 2009 20:19:45 +0000 Subject: [PATCH] Creating stable branch --- boot.rb | 110 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 110 insertions(+) create mode 100644 boot.rb diff --git a/boot.rb b/boot.rb new file mode 100644 index 0000000..0ad0f78 --- /dev/null +++ b/boot.rb @@ -0,0 +1,110 @@ +# Don't change this file! +# Configure your app in config/environment.rb and config/environments/*.rb + +RAILS_ROOT = "#{File.dirname(__FILE__)}/.." unless defined?(RAILS_ROOT) + +module Rails + class << self + def boot! + unless booted? + preinitialize + pick_boot.run + end + end + + def booted? + defined? Rails::Initializer + end + + def pick_boot + (vendor_rails? ? VendorBoot : GemBoot).new + end + + def vendor_rails? + File.exist?("#{RAILS_ROOT}/vendor/rails") + end + + def preinitialize + load(preinitializer_path) if File.exist?(preinitializer_path) + end + + def preinitializer_path + "#{RAILS_ROOT}/config/preinitializer.rb" + end + end + + class Boot + def run + load_initializer + Rails::Initializer.run(:set_load_path) + end + end + + class VendorBoot < Boot + def load_initializer + require "#{RAILS_ROOT}/vendor/rails/railties/lib/initializer" + Rails::Initializer.run(:install_gem_spec_stubs) + Rails::GemDependency.add_frozen_gem_path + end + end + + class GemBoot < Boot + def load_initializer + self.class.load_rubygems + load_rails_gem + require 'initializer' + end + + def load_rails_gem + if version = self.class.gem_version + gem 'rails', version + else + gem 'rails' + end + rescue Gem::LoadError => load_error + $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.) + exit 1 + end + + class << self + def rubygems_version + Gem::RubyGemsVersion rescue nil + end + + def gem_version + if defined? RAILS_GEM_VERSION + RAILS_GEM_VERSION + elsif ENV.include?('RAILS_GEM_VERSION') + ENV['RAILS_GEM_VERSION'] + else + parse_gem_version(read_environment_rb) + end + end + + def load_rubygems + require 'rubygems' + min_version = '1.3.1' + unless rubygems_version >= min_version + $stderr.puts %Q(Rails requires RubyGems >= #{min_version} (you have #{rubygems_version}). Please `gem update --system` and try again.) + exit 1 + end + + rescue LoadError + $stderr.puts %Q(Rails requires RubyGems >= #{min_version}. Please install RubyGems and try again: http://rubygems.rubyforge.org) + exit 1 + end + + def parse_gem_version(text) + $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*["']([!~<>=]*\s*[\d.]+)["']/ + end + + private + def read_environment_rb + File.read("#{RAILS_ROOT}/config/environment.rb") + end + end + end +end + +# All that for this: +Rails.boot! -- 2.34.1