denv = dotenv + Docker envfile format

Loads environment variables to ENV from .env file.

• No special treatments about shell meta characters (e.g. $).
• Behaves as over-write.
• Env vars are removed on loading when they are removed from .env file. This is useful when use unicorn's graceful reloading.

Add this line to your application's Gemfile:

source 'https://rubygems.org'

# Place this line at very top of your Gemfile
gem 'denv'

And then execute:

$ bundle

Write your envfile at .env:

AWESOME_SERVICE_CREDENTIAL=xxxxxx
ANOTHER_CREDENTIAL=xxxxxx

Then call Denv.load in your application initialization. Now you can refer env vars via ENV.

puts ENV['AWESOME_SERVICE_CREDENTIAL'] #=> "xxxxxx"

denv automatically sets initializer for your Rails application, so you only have to write gem dependency to your Gemfile.

denv --help
echo 'XXX=1' > .env
denv -- env | grep XXX #=> XXX=1

After checking out the repo, run bin/setup to install dependencies. 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/taiki45/denv.

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