Function writePreviewConfig

apps/host-cloudflare/scripts/preview.ts:201–216

(worker: string, databaseName: string, databaseId: string)

 * silently deploying previews against the wrong resources.
 */
const writePreviewConfig = (worker: string, databaseName: string, databaseId: string): string => {
  const basePath = resolve(APP_DIR, "wrangler.jsonc");
  let text = readFileSync(basePath, "utf8");
  const substitute = (pattern: RegExp, replacement: string): void => {
    if (!pattern.test(text))
      fail(`wrangler.jsonc no longer matches ${pattern} — update preview.ts`);
    text = text.replace(pattern, replacement);
  };
  substitute(/"name":\s*"executor-cloudflare"/, `"name": "${worker}"`);
  substitute(/"database_name":\s*"[^"]*"/, `"database_name": "${databaseName}"`);
  substitute(/"database_id":\s*"[^"]*"/, `"database_id": "${databaseId}"`);
  substitute(/"bucket_name":\s*"[^"]*"/, `"bucket_name": "${SHARED_BLOBS_BUCKET}"`);
  const outPath = resolve(APP_DIR, "wrangler.preview.jsonc");
  writeFileSync(outPath, `// Generated by scripts/preview.ts — do not edit.\n${text}`);
  return outPath;
};

// --- commands ----------------------------------------------------------------