Contributing to IRB

Bug reports and pull requests are welcome on GitHub at https://github.com/ruby/irb.

Set up the environment

1. Fork the project to your GitHub account.
2. Clone the fork with git clone git@github.com:[your_username]/irb.git.
3. Run bundle install.
4. Run bundle exec rake to make sure tests pass locally.

Run integration tests

If your changes affect component rendering, such as the autocompletion's dialog/dropdown, you may need to run IRB's integration tests, known as yamatanooroti.

Before running these tests, ensure that you have libvterm installed. If you're using Homebrew, you can install it by running:

brew install libvterm

After installing libvterm, you can run the integration tests using the following commands:

WITH_VTERM=1 bundle install
WITH_VTERM=1 bundle exec rake test test_yamatanooroti

Update documentation

IRB's documentation is generated by RDoc and published to ruby.github.io/irb. Most of the documentation source lives under the doc/ directory.

Run the following command to generate the documentation site locally.

bundle exec rake rdoc
bundle exec rake rerdoc # to force regeneration

Follow the output message to open the documentation site in your browser.

[!Note]

Please ensure that the changes are rendered correctly on the documentation site. RDoc's Markdown support is limited, so the rendered result on GitHub might differ from what’s rendered on https://ruby.github.io/irb.

We welcome any improvements to the documentation, including:

• Fixing typos and grammatical errors.
• Adding missing documentation for features.
• Adding missing documentation for configuration options.
• Adding demo images/gifs for features.