Function parseExtensionUrl

src/service/extension-script.js:105–119

(scriptUrl)

 * @return {?{extensionId: string, extensionVersion: string}}
 */
export function parseExtensionUrl(scriptUrl) {
  if (!scriptUrl) {
    return null;
  }
  // Note that the "(\.max)?" group only applies to local dev.
  const matches = scriptUrl.match(
    /^(.*)\/(.*)-([0-9.]+|latest)(\.max)?\.(?:js|mjs)(?:\?ssr-css=[0|1])?$/i
  );
  const extensionId = matches ? matches[2] : undefined;
  const extensionVersion = matches ? matches[3] : undefined;
  if (!extensionId || !extensionVersion) {
    return null;
  }
  return {extensionId, extensionVersion};
}

/**
 * Create the missing amp extension HTML script element.