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

#!/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!