IRB: Simple irb with gems loaded outside of Gemfile

.irbrc

# switch default editor for pry to sublime text
Pry.config.editor = "subl"

# format prompt to be <Rails version>@<ruby version>(<object>)>
Pry.config.prompt = proc do |obj, level, _|
  prompt = "\e[1;30m"
  prompt << "#{Rails.version} @ " if defined?(Rails)
  prompt << "#{RUBY_VERSION}"
  "#{prompt} (#{obj}:#{level})>\e[0m"
end

# break out of bundler so we can load gems outside of the Gemfile
if defined? Bundler
  Gem.post_reset_hooks.reject! { |hook| hook.source_location.first =~ %r{/bundler/} }
  Gem::Specification.reset
  load 'rubygems/custom_require.rb'
end

# use awesome print for all objects in pry
begin
  require 'awesome_print'
  Pry.config.print = proc { |output, value| output.puts "=> #{ap value}" }
rescue
  puts "=> Unable to load awesome_print, please type 'gem install awesome_print' or 'sudo gem install awesome_print'."
end