specpress/src/helpers/getConfig.mjs

Export PDF and/or DOCX files from a subset of Markdown, ASN.1 and JSON files

import { readFileSync, existsSync } from "fs";
import { resolve, join } from "path";

const configCache = new Map();

export const getConfig = (key, folderPath) => {
	const configPath = findFileInParentFolders("sp.config.json", folderPath);
	if (!configPath) throw new Error("sp.config.json not found");

	if (!configCache.has(configPath)) {
		configCache.set(
			configPath,
			JSON.parse(readFileSync(configPath, "utf-8")),
		);
	}

	return configCache.get(configPath)?.[key];
};

export const clearConfigCache = () => {
	configCache.clear();
};

const findFileInParentFolders = (fileName, currentDir = process.cwd()) => {
	let dir = currentDir;

	while (true) {
		const filePath = join(dir, fileName);
		if (existsSync(filePath)) return filePath;

		const parentDir = resolve(dir, "..");
		if (parentDir === dir) return null;
		dir = parentDir;
	}
};