🛠 Tooling: replace `jsonc-eslint-parser` with `@eslint/json`

[rakleed]

Bug Report Checklist

• I have tried restarting my IDE and the issue persists.
• I have pulled the latest main branch of the repository.
• I have searched for related issues and found none that matched my issue.

Overview

As suggested in #601 (comment), I am creating a separate issue to discuss replacing jsonc-eslint-parser dependency with @eslint/json.

@eslint/json is smaller and uses fewer dependencies than jsonc-eslint-parser. The announcement post also says that it can be used as a parser for other plugins.

The main problem is that the plugin only works since version 9.6.0 of ESLint, and you can use only a flat config. So you will have to stop supporting eslint@8, but now it still has more weekly downloads than eslint@9.

Additional Info

No response

[JoshuaKGoldberg]

Yeah 😞. As much as I'd love to use the new first-party package, I don't think it's time yet to drop support for ESLint 8. Once other popular plugins start to drop support then I think we can mark this as unblocked.

Thanks for filing!

[ota-meshi]

Hi there. I've created an experimental tool that converts jsonc-eslint-parser AST processing rules/plugins to be used with @eslint/json.
https://www.npmjs.com/package/eslint-json-compat-utils
Try it out if you want to use eslint-plugin-package-json and @eslint/json together now.

You can find a working example online here.

[JoshuaKGoldberg]

That's fantastic, thanks @ota-meshi! Marking as accepting PRs to switch this package to using the compat utils.

Note that doing so is probably not a trivial change. It'll probably touch most or all of the rules in the plugin.

[JoshuaKGoldberg]

@all-contributors please add @rakleed for tool.

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[allcontributors]

@JoshuaKGoldberg

I've put up a pull request to add @rakleed! 🎉