Class: Rails::GemBoot

Inherits:
Boot
  • Object
show all
Defined in:
lib/generator/files/config/boot.rb

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Boot

#run

Class Method Details

.gem_version ⇒ Object 



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# File 'lib/generator/files/config/boot.rb', line 78

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

.load_rubygems ⇒ Object 



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# File 'lib/generator/files/config/boot.rb', line 88

def load_rubygems
  min_version = '1.3.2'
  require 'rubygems'
  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

.parse_gem_version(text) ⇒ Object 



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# File 'lib/generator/files/config/boot.rb', line 101

def parse_gem_version(text)
  $1 if text =~ /^[^#]*RAILS_GEM_VERSION\s*=\s*["']([!~<>=]*\s*[\d.]+)["']/
end

.rubygems_version ⇒ Object 



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# File 'lib/generator/files/config/boot.rb', line 74

def rubygems_version
  Gem::RubyGemsVersion rescue nil
end

Instance Method Details

#load_initializer ⇒ Object 



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# File 'lib/generator/files/config/boot.rb', line 52

def load_initializer
  self.class.load_rubygems
  load_rails_gem
  require 'initializer'
end

#load_rails_gem ⇒ Object 



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# File 'lib/generator/files/config/boot.rb', line 58

def load_rails_gem
  if version = self.class.gem_version
    gem 'rails', version
  else
    gem 'rails'
  end
rescue Gem::LoadError => load_error
  if load_error.message =~ /Could not find RubyGem rails/
    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
  else
    raise
  end
end