Function hasMarkdownFiles

packages/shared/resolve-file.ts:486–509

(
	dirPath: string,
	excludedDirs: string[] = IGNORED_DIRS,
	extensions: RegExp = /\.mdx?$/i,
)

 * @param extensions - Regex to match file extensions (default: markdown only)
 */
export function hasMarkdownFiles(
	dirPath: string,
	excludedDirs: string[] = IGNORED_DIRS,
	extensions: RegExp = /\.mdx?$/i,
): boolean {
	function walk(dir: string): boolean {
		let entries;
		try {
			entries = readdirSync(dir, { withFileTypes: true });
		} catch {
			return false;
		}
		for (const entry of entries) {
			if (entry.isDirectory()) {
				if (excludedDirs.some((d) => d === entry.name + "/")) continue;
				if (walk(join(dir, entry.name))) return true;
			} else if (entry.isFile() && extensions.test(entry.name)) {
				return true;
			}
		}
		return false;
	}
	return walk(dirPath);
}