Inline Bundler Without Gemfile

For quick throwaway ruby scripts, you can add your gemfile inline. When you run the file, ruby will install your dependencies and then execute the script.

Inline bundler

# BEGIN inline bundler 
require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'

  gem 'httparty'
  gem 'pry'
end
# END inline bundler 

resp = HTTParty.get "https://rubygems.org"
binding.pry 

Running

> ruby tmp.rb 

From: /Users/user/code/tmp.rb:11 :

     6: gem 'httparty'
     7: gem 'pry'
     8: end
     9: 
    10: resp = HTTParty.get "https://rubygems.org"
 => 11: binding.pry 

[1] pry(main)>