Loading rails environment in a script

gistfile1.txt

#!/usr/bin/env ruby

# Load Rails
ENV['RAILS_ENV'] = ARGV[0] || 'production'
DIR = File.dirname(__FILE__) 
require DIR + '/../config/environment'

# ... do stuff that requires using your rails models

You just saved our lives..! Thank you so much for this... Had nearly pulled all of my hair out!

Is this current for Rails 3/4? It's my top Google result for "rails script load environment" so it might be worth updating.

#!/usr/bin/env ruby
require File.expand_path('../config/environment',  __FILE__)

worked for me on Rails 3 (one-shot script located in Rails.root)

works on Rails 4 for me, but only when i run from the main Rails root. I'm sure it's based on a basic tweak I could make to have it run in a subdir, but i'm lazy today.

In Rails 4 or 3, you can try to copy the config from the file test/test_helper.rb and change the path then everything should work correctly.

cool~

@lloeki your solution worked for me in rails 3.

FYI, I think that should be:

#!/usr/bin/env ruby

require File.expand_path('../config/environment', File.dirname(__FILE__))
# or
require "#{File.dirname(__FILE__)}/../config/environment"

Otherwise, the script will not work in the script subdirectory.

👍 require File.expand_path('../config/environment', File.dirname(__FILE__)) works (Rails 5.2)

even better: require_relative '../config/environment'

my 2 cents

rails r hello.rb

executes hello.rb as if it is a part of rails app

@giddie require File.expand_path('../config/environment', File.dirname(__FILE__)) worked for me too, thank you!