# AppManifest

A Ruby Gem for parsing AppManifests according to the [app.json
schema](https://devcenter.heroku.com/articles/app-json-schema)

## Installation

Add this line to your application's Gemfile:

```ruby
gem 'app_manifest'
```

And then execute:

    $ bundle

Or install it yourself as:

    $ gem install app_manifest

## Usage

Initialize an app manifest:

```ruby
AppManifest(name: 'my-app')
```

Extract an environment configuration:
```ruby
manifest = AppManifest(name: 'my-app', environments: { test: { addons: ['beta'] } })

manifest.environment(:test).to_hash
# => { name: 'my-app', addons: [{ plan: 'beta' }] }
```

## Development

After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` 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](https://rubygems.org).

## Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/heroku/app-manifest.