cookpad / denv

Loads environment variables to `ENV` from `.env` file

denv

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.

Usage

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"

Rails integration

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

Command line tool

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

Development

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.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/taiki45/denv.

License

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

denv's Issues

Local overrides

Any chance of getting local overrides implemented?

i.e. The .env.local facility provided by dotenv.

Local overrides are quite useful for individual credentials and other secrets.