Function buildZip

apps/vis/server/test/lib/import-store.test.ts:13–25

Build an in-memory zip from a {path: contents} map (yazl refuses to emit * `..` entries, so traversal is tested via resolveSafeTarget directly).

(entries: Record<string, string>)

/** Build an in-memory zip from a {path: contents} map (yazl refuses to emit
 *  `..` entries, so traversal is tested via resolveSafeTarget directly). */
function buildZip(entries: Record<string, string>): Promise<Buffer> {
  return new Promise((resolve, reject) => {
    const zip = new ZipFile();
    for (const [name, data] of Object.entries(entries)) {
      zip.addBuffer(Buffer.from(data, 'utf8'), name);
    }
    zip.end();
    const chunks: Buffer[] = [];
    (zip.outputStream as NodeJS.ReadableStream).on('data', (c: Buffer) => chunks.push(c));
    (zip.outputStream as NodeJS.ReadableStream).on('end', () => { resolve(Buffer.concat(chunks)); });
    (zip.outputStream as NodeJS.ReadableStream).on('error', reject);
  });
}

const META_LINE = JSON.stringify({ type: 'metadata', protocol_version: '1.4', created_at: 1 });
const WIRE = `${META_LINE}\n`;