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https://github.com/marcoroth/type_fusion

Collaborative Ruby type sampling
https://github.com/marcoroth/type_fusion

rbi rbs ruby ruby-types sorbet types typing

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Collaborative Ruby type sampling

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README 

        
# TypeFusion



## Installation



Install the gem and add to the application's Gemfile by executing:



```shell

bundle add type_fusion

```



If bundler is not being used to manage dependencies, install the gem by executing:



```shell

gem install type_fusion

```



### Running TypeFusion in the `test` environment



Setup TypeFusion if you only want to run TypeFusion as part of your test suite.



#### Minitest



You can require `type_fusion/minitest` in your `test_helper.rb`:



```diff

# test/test_helper.rb



ENV["RAILS_ENV"] ||= "test"

require_relative "../config/environment"

require "rails/test_help"



+require "type_fusion/minitest"



class ActiveSupport::TestCase

  # ...

end

```



#### RSpec



You can require `type_fusion/rspec` in your `spec_helper.rb`:



```diff

# spec/spec_helper.rb



+require "type_fusion/rspec"



RSpec.configure do |config|

  # ...

end

```



### Running TypeFusion in `development` or `production`



#### Rack



```ruby

require "type_fusion/rack/middleware"



use TypeFusion::Middleware

```



#### Rails



Adding the gem to your applications Gemfile will automatically setup `type_fusion`.



## Configuration



Setup `TypeFusion` in an initializer



```ruby

# config/initializers/type_fusion.rb



require "type_fusion"



TypeFusion.config do |config|



  # === application_name

  #

  # Set application_name to a string which is used to know where the samples

  # came from. Set application_name to an empty string if you wish to not

  # send the application name alongside the samples.

  #

  # Default: "TypeFusion"

  # Default when using Rails: Rails.application.class.module_parent_name

  #

  # config.application_name = "YourApplication"



  # === endpoint

  #

  # Set endpoint to an URL where TypeFusion should send the samples to.

  #

  # Default: "https://gem.sh/api/v1/types/samples"

  #

  # config.endpoint = "https://your-domain.com/api/v1/types/samples"



  # === type_sample_request

  #

  # Set type_sample_request to a lambda which resolves to true/false

  # to set if type sampling should be enabled for the whole rack request.

  #

  # Default: ->(rack_env) { [true, false, false, false].sample }

  #

  # config.type_sample_request = ->(rack_env) { [true, false, false, false].sample }



  # === type_sample_tracepoint_path

  #

  # Set type_sample_tracepoint_path to a lambda which resolves

  # to true/false to check if a tracepoint_path should be sampled

  # or not.

  #

  # This can be useful when you want to only sample method calls for

  # certain gems or want to exclude a gem from being sampled.

  #

  # Example:

  # config.type_sample_tracepoint_path = ->(tracepoint_path) {

  #   return false if tracepoint_path.include?("activerecord")

  #   return false if tracepoint_path.include?("sprockets")

  #   return false if tracepoint_path.include?("some-private-gem")

  #

  #   true

  # }

  #

  # Default: ->(tracepoint_path) { true }

  #

  # config.type_sample_tracepoint_path = ->(tracepoint_path) { true }



  # === type_sample_call_rate

  #

  # Set type_sample_call_rate to 1.0 to capture 100% of method calls

  # within a rack request.

  #

  # Default: 0.001

  #

  # config.type_sample_call_rate = 0.001

end

```



## Usage



#### Type sample inside a block



```ruby

TypeFusion.with_sampling do

  # run code you want to type sample here

end

```



#### Type sample globally



```ruby

TypeFusion.start



# run code you want to type sample here



TypeFusion.stop

```



#### Retrieve the samples



```ruby

TypeFusion::Sampler.instance.samples

# => [...]

```



```ruby

TypeFusion::Sampler.instance.samples.first



# => #

```



## 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 the created tag, 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/marcoroth/type_fusion. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/marcoroth/type_fusion/blob/main/CODE_OF_CONDUCT.md).



## Code of Conduct



Everyone interacting in the TypeFusion project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/marcoroth/type_fusion/blob/main/CODE_OF_CONDUCT.md).