Function walk

apps/api/src/templates/email/preview.ts:302–318

(dir: string)

  const map = new Map<string, string>();

  const walk = (dir: string): void => {
    if (!fs.existsSync(dir)) {
      return;
    }

    for (const entry of fs.readdirSync(dir, { withFileTypes: true })) {
      const abs = path.join(dir, entry.name);

      if (entry.isDirectory()) {
        walk(abs);
      } else if (entry.isFile()) {
        const rel = path.relative(PREVIEW_DIR, abs).split(path.sep).join("/");

        map.set(`/${rel}`, abs);
      }
    }
  };

  walk(PREVIEW_DIR);