Provide a way to let plugins use a compatible version of Joi

[weareoutman]

🚀 Feature

Provide a way to let plugins (such as my plugin) be compatible across Docusaurus versions, which both use Joi to do validation of options.

Have you read the Contributing Guidelines on issues?

yes

Motivation

Currently Joi disallows mixing different versions of joi schema, however, we cannot make sure Docusaurus and plugins use the same version of Joi if they specifies their own dependencies. Like this issue happened after a new Docusaurus version released.

Users can do a dedupe to fix this problem, but it's pretty annoying since Docusaurus releases frequently.

Another workaround maybe specifying Joi as a peer dependency in plugins, but I think it cannot always work, because Docusaurus and plugins are peers, but their own dependencies are not.

Pitch

(Please explain why this feature should be implemented and how it would be used.)

[slorber]

Hey, totally agree on this, it was on my todo list.

We'll expose this:

import { Joi } from "@docusaurus/utils-validation"

[slorber]

PR: #4459

You'll need to require min version alpha 73 once released