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Toggles

Gem Version CI

YAML backed feature toggles

Installation

Add the following to your Gemfile:

gem "toggles"

and run bundle install from your shell.

To install the gem manually from your shell, run:

gem install toggles

Configuration

Configure toggles:

Toggles.configure do |config|
  config.features_dir = "features"
end

You can now express conditional logic within features_dir. The structure of the features_dir determines the structure of the classes within the Feature module. For example if the features_dir has the structure:

features
├── thing
|   ├── one.yml
|   └── two.yml
└── test.yml

You can call the Toggles.init method to force re-parsing the configuration and re-initializing all Features structures at any time. The Toggles.reinit_if_necessary method is a convenience helper which will only re-initialize of the top-level features directory has changed. Note that, in general, this will only detect changes if you use a system where you swap out the entire features directory on changes and do not edit individual files within the directory.

Usage

Create a file in features_dir:

user:
  id:
    in:
      - 12345
      - 54321

Check if the feature is enabled or disabled:

Feature.enabled?(:new_feature, :available_for_presentation, user: OpenStruct.new(id: 12345)) # true
Feature.enabled?(:new_feature, :available_for_presentation, user: OpenStruct.new(id: 54321)) # true
Feature.enabled?(:new_feature, :available_for_presentation, user: OpenStruct.new(id: 7)) # false

Feature.disabled?(:new_feature, :available_for_presentation, user: OpenStruct.new(id: 12345)) # false
Feature.disabled?(:new_feature, :available_for_presentation, user: OpenStruct.new(id: 54321)) # false
Feature.disabled?(:new_feature, :available_for_presentation, user: OpenStruct.new(id: 7)) # true

License

This project is licensed under the ISC License, the contents of which can be found at LICENSE.txt.