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Methods
E
F
Constants
RUBY = Gem.ruby
 
EXECUTABLES = ['bin/rails', 'script/rails']
 
BUNDLER_WARNING = <<EOS Looks like your app's ./bin/rails is a stub that was generated by Bundler. In Rails 4, your app's bin/ directory contains executables that are versioned like any other source code, rather than stubs that are generated on demand. Here's how to upgrade: bundle config --delete bin # Turn off Bundler's stub generator rake rails:update:bin # Use the new Rails 4 executables git add bin # Add bin/ to source control You may need to remove bin/ from your .gitignore as well. When you install a gem whose executable you want to use in your app, generate it and add it to source control: bundle binstubs some-gem-name git add bin/new-executable EOS
 
Instance Public methods
exec_app_rails()
# File railties/lib/rails/app_rails_loader.rb, line 31
def exec_app_rails
  original_cwd = Dir.pwd

  loop do
    if exe = find_executable
      contents = File.read(exe)

      if contents =~ /(APP|ENGINE)_PATH/
        exec RUBY, exe, *ARGV
        break # non reachable, hack to be able to stub exec in the test suite
      elsif exe.end_with?('bin/rails') && contents.include?('This file was generated by Bundler')
        $stderr.puts(BUNDLER_WARNING)
        Object.const_set(:APP_PATH, File.expand_path('config/application', Dir.pwd))
        require File.expand_path('../boot', APP_PATH)
        require 'rails/commands'
        break
      end
    end

    # If we exhaust the search there is no executable, this could be a
    # call to generate a new application, so restore the original cwd.
    Dir.chdir(original_cwd) and return if Pathname.new(Dir.pwd).root?

    # Otherwise keep moving upwards in search of an executable.
    Dir.chdir('..')
  end
end
find_executable()
# File railties/lib/rails/app_rails_loader.rb, line 59
def find_executable
  EXECUTABLES.find { |exe| File.file?(exe) }
end