This simple script will help you collect statistics about your programmers and generate a simple HTML report. First, install it:
$ gem install cobench
Then, run it locally and read its output:
$ cobench --coder yegor256 --verbose
This is how our report looks like.
Read these guidelines. Make sure you build is green before you contribute your pull request. You will need to have Ruby 2.3+ and Bundler installed. Then:
$ bundle update
$ bundle exec rake
If it's clean and you don't see any error messages, submit your pull request.