RailsSpotlight

Chrome extension Rails Spotlight.

Support for

• Rails 5+
• Ruby 2.6+

Installation

Add this line to your application's Gemfile:

use bash

bundle add rails_spotlight --group development

or add it manually:

group :development do
  gem 'rails_spotlight'
end

Configuration

Generate configuration file by running:

rails rails_spotlight:generate_config 

file will be created in config/rails_spotlight.yml

Configuration options

  # Default configuration for RailsSpotlight
  PROJECT_NAME: <%=Rails.application.class.respond_to?(:module_parent_name) ? Rails.application.class.module_parent_name : Rails.application.class.parent_name%>
  SOURCE_PATH: <%=Rails.root%>
  STORAGE_PATH: <%=Rails.root.join('tmp', 'data', 'rails_spotlight')%>
  STORAGE_POOL_SIZE: 20
  LOGGER: <%=Logger.new(Rails.root.join('log', 'rails_spotlight.log'))%>
  MIDDLEWARE_SKIPPED_PATHS: []
  NOT_ENCODABLE_EVENT_VALUES:
  SKIP_RENDERED_IVARS: []
  BLOCK_EDITING_FILES: false
  BLOCK_EDITING_FILES_OUTSIDE_OF_THE_PROJECT: true
  DIRECTORY_INDEX_IGNORE: ['/.git', '**/*.lock', '**/.DS_Store', '/app/assets/images/**', '/app/assets/fonts/**', '/app/assets/builds/**']
  RUBOCOP_CONFIG_PATH: '.rubocop.yml'
  # Rest of the configuration is required for ActionCable. It will be disabled automatically in when ActionCable is not available.
  AUTO_MOUNT_ACTION_CABLE: false
  ACTION_CABLE_MOUNT_PATH: /cable
  # Required for all action cable features
  USE_ACTION_CABLE: false
  LIVE_CONSOLE_ENABLED: false
  # Experimental feature.
  REQUEST_COMPLETED_BROADCAST_ENABLED: false
  LIVE_LOGS_ENABLED: false
  DEFAULT_RS_SRC: default
  FORM_JS_EXECUTION_TOKEN: <%= Digest::MD5.hexdigest(Rails.application.class.respond_to?(:module_parent_name) ? Rails.application.class.module_parent_name : Rails.application.class.parent_name)%>

Additional metrics

To enable additional rendering metrics like local variables, instance variables, params etc. add to your layout file:

<% if Rails.env.development? %>
  <%= RailsSpotlight::RenderViewReporter.report_rendered_view_locals(self, locals: local_assigns, params: params, skip_vars: %i[current_template], metadata: { just_test: 'Works' }) %>
<% end %>

Experimental features

Live logs requires action cable to be enabled.

USE_ACTION_CABLE: true LIVE_LOGS_ENABLED: true

When you want to use different sources for the cable logs you need to update cable.yml file.

development:
  adapter: redis
  url: redis://localhost:6379/1

Note: Redis is required for live logs. so just add it to your Gemfile and run bundle install

modify yor development.rb file

config.action_cable.allowed_request_origins = ['chrome-extension://chjfnpmbgdbipfogflkhleaceacndaop' ]

Now just run your servers with environment variable RS_SRC=my_source_name like RS_SRC=sidekiq bundle exec sidekiq -C config/sidekiq.yml or RS_SRC=web bundle exec puma -C config/puma.rb

---

Forms (Filling forms with scenarios)

To be able use full potential of the forms you need to generate partial that helps with js code injection.

Just use rails rails_spotlight:inject_js_partial and inject partial to your layout file as instructed in past generation message. setup your FORM_JS_EXECUTION_TOKEN or use pregnerated one in your extension settings.

Advanced log configuration

You can add to your Initializers config/initializers/rails_spotlight.rb file with the additional configuration for the logger.

  unless Rails.env.production?
    # Publish logs to the spotlight (only when implementation is based on the Rails.logger)
    defined?(Logger) && Logger&.extend(RailsSpotlight::LogInterceptor)
    # Publish Hutch logs to the spotlight
    defined?(Hutch::Logging) && Hutch::Logging.logger&.extend(RailsSpotlight::LogInterceptor)
  end

Troubleshooting

Known issue:

Authentication error when using:

• Specific authentication method and action cable
• AUTO_MOUNT_ACTION_CABLE: true

Solution:

• Set AUTO_MOUNT_ACTION_CABLE: false
• Add manually mount ActionCable.server => '/cable' to config/routes.rb with proper authentication method

---

Requests crash when ActionCable settings -> Use action cable for meta requests (required for Safari) is on

Solution:

• Switch flag off
• REQUEST_COMPLETED_BROADCAST_ENABLED: false

Testing

To run tests for all versions of Rails and Ruby, run:

docker-compose up

Usage

Gem is created for the Chrome extension Rails Spotlight, but it can be used for any purpose.

License

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