Add Prettier to keep things consistent

[kraenhansen]

Merging this PR will:

• Introduce the prettier CLI and two package scripts for the root package, one to check and one to write (/ fix).

[changeset-bot]

⚠️ No Changeset found

Latest commit: f18f6cc

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

When changesets are added to this PR, you'll see the packages that this PR includes changesets for and the associated semver types

Click here to learn what changesets are, and how to add one.

Click here if you're a maintainer who wants to add a changeset to this PR

[kraenhansen]

The check seems to work on CI 👍 I'll rebase this and commit the result of running prettier:write once we have a couple of other PRs merged 🤞

[shirakaba]

Looks good, just some suggestions!

[shirakaba]

This seems to do the trick. I've tried entering various gitignored folders with "format on save" enabled and it successfully ignores them. It seems node_modules is implicitly ignored as well. 👍

I'm hoping to get permission to opensource a tool I made at work that flattens all .gitignores under a tree into a single one – I made it specifically to support Prettier, which has spent years neglecting monorepo support. But let's not wait on that.

[shirakaba]

Suggested change

	- run: npm run lint
	- run: npm run prettier:check
	- run: node --run lint
	- run: node --run prettier:check

[kraenhansen]

I plan to do a separate PR to update npm run across the repo 👍 Especially when calling other scripts within scripts.

[shirakaba]

Let's upgrade this to Prettier 3.6 (see blog post).

[shirakaba]

From Prettier 3.6, we can use the performance-improved CLI.

Suggested change

	"prettier:check": "prettier --check .",
	"prettier:write": "prettier --write .",
	"prettier:check": "prettier --experimental-cli --check .",
	"prettier:write": "prettier --experimental-cli --write .",

[shirakaba]

I'd suggest renaming to prettier.config.mjs for some Intellisense and adding @prettier/plugin-oxc for mad speed, which was announced alongside Prettier 3.6.

After running:

npm add -D prettier@latest @prettier/plugin-oxc

Suggested change

	{}
	/**
	* @satisfies {import("prettier").Config}
	* @see https://prettier.io/docs/en/configuration.html
	*/
	const config = {
	plugins: ["@prettier/plugin-oxc"],
	};
	export default config;