logo-management（标志管理）

Logo Management Skill

Logo package lives in packages/logos/.

packages/logos/
├── src/
│   ├── services/logo/     # fetch.ts, list.ts, download.ts
│   ├── infra/storage/     # Vercel Blob service
│   └── utils/normalize.ts # Brand name normalization
└── scripts/               # fetch-logos.ts, upload-to-blob.ts

Brand Name Normalization

// packages/logos/src/utils/normalize.ts
export function normalizeBrandName(brand: string): string {
  return brand.toLowerCase().trim()
    .replace(/\s+/g, "-")        // Spaces → hyphens
    .replace(/[^a-z0-9-]/g, "")  // Remove special chars
    .replace(/-+/g, "-");        // Dedupe hyphens
}

// Brand aliases for common variations
const BRAND_ALIASES: Record<string, string> = {
  "mercedes": "mercedes-benz",
  "vw": "volkswagen",
  "landrover": "land-rover",
};

Logo Fetching

// packages/logos/src/services/logo/fetch.ts
export async function getLogoUrl(brand: string): Promise<string | null> {
  const normalizedBrand = normalizeBrandName(brand);
  const cacheKey = `logo:url:${normalizedBrand}`;

  // Check Redis cache
  const cached = await redis.get<string>(cacheKey);
  if (cached) return cached;

  // Try different extensions
  for (const ext of ["svg", "png", "jpg"]) {
    const url = `${LOGO_CDN_BASE}/${normalizedBrand}.${ext}`;
    const response = await fetch(url, { method: "HEAD" });
    if (response.ok) {
      await redis.set(cacheKey, url, { ex: 7 * 24 * 60 * 60 });
      return url;
    }
  }
  return null;
}

Vercel Blob Storage

// packages/logos/src/infra/storage/blob.ts
import { put, list, del } from "@vercel/blob";

export class LogoBlobService {
  async upload(brand: string, file: Buffer): Promise<string> {
    const fileName = `logos/${normalizeBrandName(brand)}.png`;
    const blob = await put(fileName, file, { access: "public", addRandomSuffix: false });
    await redis.set(`logo:blob:${normalizeBrandName(brand)}`, blob.url, { ex: 7 * 24 * 60 * 60 });
    return blob.url;
  }

  async list(): Promise<string[]> {
    const { blobs } = await list({ prefix: "logos" });
    return blobs.map(blob => blob.url);
  }

  async delete(brand: string): Promise<void> {
    await del(`logos/${normalizeBrandName(brand)}.png`);
    await redis.del(`logo:blob:${normalizeBrandName(brand)}`);
  }
}

Scripts

# Fetch logos from CDN
pnpm -F @sgcarstrends/logos fetch-logos

# Scrape logos from websites
pnpm -F @sgcarstrends/logos scrape-logos

Usage in Apps

// API route
import { getLogoUrl } from "@sgcarstrends/logos";

app.get("/logos/:brand", async (c) => {
  const logoUrl = await getLogoUrl(c.req.param("brand"));
  if (!logoUrl) return c.json({ error: "Logo not found" }, 404);
  return c.json({ logoUrl });
});

// React component
<Image src={logoUrl || "/images/logo-placeholder.png"} alt={`${brand} logo`} width={64} height={64} />

Environment Variables

BLOB_READ_WRITE_TOKEN=vercel_blob_token_here

Best Practices

1. Normalize Names: Always normalize brand names before lookup
2. Cache Aggressively: Use multi-layer caching (memory → Redis → Blob)
3. Fallbacks: Provide placeholder for missing logos
4. Batch Operations: Use batch uploads for multiple logos

References

• Vercel Blob: Use Context7 for latest docs
• packages/logos/CLAUDE.md for package details