Easily pull Heroku environment variables into non-Heroku environments.

Add this line to your application's Gemfile:

gem 'herokenv'

And then execute:

$ bundle install

Or install it yourself as:

$ gem install herokenv

Before or during the boot stage of your app you can require herokenv and have it populate your ENV based on the values in a Heroku app.

require 'herokenv'
herokenv = Herokenv::Client.new(oauth_token: 'xxx', app: 'stark-citadel-2145')
herokenv.populate_env_from_app

Now your local process will have access to ENV vars that are set in your heroku app.

If you want to only load some perticular ENV variables you can use only:

herokenv.populate_env_from_app only: %w[ONLY_LOAD_THIS_VAR]

Or you can load everything except ones that you want to exclude using except:

herokenv.populate_env_from_app except: %w[DO_NOT_LOAD_THIS_VAR]

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/herokenv. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

The gem is available as open source under the terms of the MIT License.

Everyone interacting in the Herokenv project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.