CircleCI Maintainability Test Coverage

Marathon allows you to run several bash commands and configure them by steps, so if any previous step has failed the execution gets stoped after the current step ends.


Add this line to your application's Gemfile:

gem 'marathon'

And then execute:

$ bundle

Or install it yourself as:

$ gem install marathon


$ marathon -c 'command A in first step','command B in first step' -c 'command C in second step','command D in second step' -c 'command E in third step','you get the idea'

Some real life examples would be:

  • To set rspec to run after all linters and static analizers:

    marathon -c 'yarn test','bundle exec rubocop','bundle exec brakeman','yarn run js-lint','yarn run css-lint' -c 'bundle exec rspec'
  • To set rspec to run after rubocop and after frontend linters:

    marathon -c 'yarn run js-lint','yarn run css-lint' -c 'bundle exec rubocop' -c 'bundle exec rspec'

Order matters!

Failed example image


After checking out the repo, run bin/setup to install dependencies. Then, run rake spec 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 tags, and push the .gem file to

Read the docs


Bug reports and pull requests are welcome on GitHub at This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.


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

Code of Conduct

Everyone interacting in the Marathon project’s codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.