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Automated Rule Docs With Docusaurus and Remark

· 7 min read
Josh Goldberg
typescript-eslint Maintainer

The typescript-eslint website at is the canonical location for documentation on how to use ESLint on TypeScript code. The site includes a documentation page for each of the over 100 ESLint rules exposed by its ESLint plugin. Each of those rule docs pages includes a description of the rule, any options it allows, links to its source code, and other important information about its usage.

Until recently, keeping descriptions of rules consistent between their source code and docs pages was a cumbersome manual chore. We'd written a suite of Jest tests to verify they matched -- but those tests didn't capture everything, often failed with cryptic messages, and were missed by less experienced contributors.

We're happy to say that now, we've overhauled rule docs pages to automatically generate metadata information from rule source code. That means the pages always display up-to-date information without developers needing to manually rewrite docs on rule changes. Hooray! 🎉

This blog post gives an overview of the chore to generate rule docs options automatically.