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docs.rubocop.org

This repository contains RuboCop’s documentation site. It’s home to both the documentation of RuboCop itself, plus that of its core extensions (the ones maintained by RuboCop’s Core Team).

The site is generated from the AsciiDoc files in the docs folder of RuboCop’s GitHub repo (and the core RuboCop extensions like rubocop-rspec) and is published to https://docs.rubocop.org. Antora is used to convert the manual into HTML. The filesystem layout is described here.

You can find a list of all the documentation modules that are weaved together in the final site in antora-playbook.yml.

To make changes to the manual you simply have to change the files under docs in the relevant repository. The docs will be regenerated manually periodically.

Installing Antora

Installing the Antora is super simple:

$ npm i -g @antora/[email protected] @antora/[email protected]

Check out the detailed installation instructions if you run into any problems.

Building the Site

You can build the documentation locally from this repo.

$ cd docs.rubocop.org
$ antora --fetch antora-playbook.yml
Tip
You can preview your changes by opening docs/index.html in your favorite browser.

Afterwards you can publish your changes like this:

$ git add docs
$ git commit -m 'Update site docs'
$ git push

You can also use the deploy script to publish changes in a single step:

$ ./deploy

It basically does antora --fetch and git push.

Note
You’ll need commit access to the repository for this to work.

If you want to make changes to the manual’s page structure you’ll have to edit nav.adoc.

Using Docker

If you prefer not to install Antora on your local machine, you can build the documentation inside a Docker container like this:

$ docker run --rm -t -v $(pwd):/docs antora/antora:3.1.9 --fetch /docs/antora-playbook.yml

Then, proceed with git add, git commit and git push as mentioned above.

Updating the Playbook

When cutting new releases you’ll have to updated antora-playbook.yml to mention their relevant tags from which the documentation needs to be build. Here’s how this looks for one of the projects:

- url: https://github.com/rubocop/rubocop-performance.git
  branches: master
  tags: ['v1.7.1', 'v1.8.1']
  start_path: docs
Tip
You need to add one such block for each new RuboCop module you’re adding to the docs site.

After releases of the main RuboCop gem you also need to update the default landing version (it should always be the latest version).

Troubleshooting

The most common mistake that people make is to forget to update the version of an Antora docs module after cutting a release. This will result in an error saying you’ve got the same version in two branches (e.g. master and v1.0). Fixing this is pretty simple - just update the version to master in antora.yml.