Traces is a micro CLI application that is able to get all contributors and their contributors in "developer-readable" JSON format for a specified repository.

The authentication is a basic login/password for GitHub.

 $ composer require prestashop/traces
 
 $ ./vendor/bin/traces <repositoryOwner/repositoryName> <login> <password> --config="config.yml"

You can configure a list of excluded contributors, take a look to config.dist.yml file.

A file named contributors.js will be generated, you can manipulate it using any programming language.