Railsrc file

.railsrc

In your .irbrc file put:
load File.dirname(__FILE__) + '/.railsrc' if ($0 == 'irb' && ENV['RAILS_ENV']) || ($0 == 'script/rails' && Rails.env)

This is the .railsrc file
#!/usr/bin/ruby

begin
  require 'hirb' # sudo gem install cldwalker-hirb --source http://gems.github.com
  Hirb.enable
rescue LoadError
end

def change_log(stream)
  ActiveRecord::Base.logger = Logger.new(stream)
  ActiveRecord::Base.clear_active_connections!
end

def show_log
  change_log(STDOUT)
  true
end

def hide_log
  change_log(nil)
  true
end

def load_lib
    path = File.join( Rails.root, 'lib') 
    failures = []
    Dir.glob("#{path}/**/*.rb").each {  |file|
    #puts "loading: #{file} ... "
    begin
      load file
    rescue => ex
      failures << file 
    end
   } 
  # this second pass is here to try to catch anything that 
  # is dependent on something else
  # could be improved, but is working fine for my needs
  double_failures = []
  for file in failures 
    begin
      load file
    rescue => ex1
      double_failures << file 
    end
  end 

  if double_failures.size > 0 
    puts "these files failed twice"
    for file in double_failures
      puts file
    end
  end 
end