fumadocs-twoslash/dist/cache-fs.js

Typescript Twoslash Integration for Fumadocs

import { createHash } from "node:crypto";
import * as fs from "node:fs";
import * as path from "node:path";
import * as process from "node:process";
//#region src/cache-fs.ts
/**
* Original: https://github.com/shikijs/shiki/blob/main/packages/vitepress-twoslash/src/cache-fs.ts
*/
function createFileSystemTypesCache(options = {}) {
	const { cwd = process.cwd() } = options;
	const dir = path.join(cwd, options.dir ?? ".next/cache/twoslash");
	return {
		init() {
			try {
				fs.mkdirSync(dir, { recursive: true });
			} catch {}
		},
		read(code) {
			const hash = createHash("SHA256").update(code).digest("hex").slice(0, 12);
			const filePath = path.join(dir, `${hash}.json`);
			if (!fs.existsSync(filePath)) return null;
			return JSON.parse(fs.readFileSync(filePath, "utf-8"));
		},
		write(code, data) {
			const hash = createHash("SHA256").update(code).digest("hex").slice(0, 12);
			const filePath = path.join(dir, `${hash}.json`);
			const json = JSON.stringify(data);
			fs.writeFileSync(filePath, json, "utf-8");
		}
	};
}
//#endregion
export { createFileSystemTypesCache };