upgrade-noteblock.js

#!/bin/node

/*
 * upgrade-noteblock.js - © 2024 @queengooborg
 * Written by Queen Vinyl Da.i'gyu-Kazotetsu <https://www.queengoob.org>
 * Script to replace old noteblock syntax with new, GFM syntax
 *
 * Requirements:
 * - NodeJS
 * - mdn/content or mdn/translated-content as CWD
 */

import fs from "node:fs/promises";
import path from "node:path";

const regex = (strings) => new RegExp(`( *)>\\s\\*\\*(${strings.join('|')})\\*\\*\\s(?![\\*\\[\`\\{_])(>\\s(?!>)|>(?=\\n))?`, 'g');
const types = {
	"NOTE": [
		"Note:",
		"Hinweis:",
		"Nota:",
		"Note :",
		"メモ:",
		"참고:",
		"Uwaga:",
		"Nota:",
		"Примечание:",
		"备注：",
		"備註："
	],
	"WARNING": [
		"Warning:",
		"Warnung:",
		"Advertencia:",
		"Attention :",
		"警告:",
		"경고:",
		"Ważne:",
		"Aviso:",
		"Предупреждение:",
		"警告：",
		"警告："
	],
	"CALLOUT": [
		"Callout:",
		"Bemerkung:",
		"Observación:",
		"Remarque :",
		"注目:",
		"알림:",
		"Obserwacja:",
		"Observação:",
		"Сноска:",
		"标注：",
		"標註："
	],
};

// https://gist.github.com/lovasoa/8691344
async function* walk(dir) {
	for await (const d of await fs.opendir(dir)) {
		const entry = path.join(dir, d.name);
		if (d.isDirectory()) yield* walk(entry);
		else if (d.isFile() && d.name != ".DS_Store") yield entry;
	}
}
// END SNIPPET

const main = async (filepath) => {
	for await (const p of walk((filepath || './files'))) {
		// Skip non-Markdown files
		if (!(p.endsWith('.md'))) continue;

		let contents = await fs.readFile(p, 'utf-8');
		let changed = false;

		for (const [type, strings] of Object.entries(types)) {
			const re = regex(strings);
			if (contents.match(re)) {
				// If there's any match, replace all matches
				contents = contents.replace(re, `$1> [!${type}]\n$1> `);
				changed = true;
			}

			if (changed) {
				await fs.writeFile(p, contents);
			}
		}
	}
}

await main(process.argv[2]);