Function checkIfLocalPlugin

src/commands/plugin/ManagePlugins.tsx:376–383

* Check if a plugin is from a local source and cannot be remotely updated * @returns Error message if local, null if remote/updatable

(pluginName: string, marketplaceName: string)

 * @returns Error message if local, null if remote/updatable
 */
async function checkIfLocalPlugin(pluginName: string, marketplaceName: string): Promise<string | null> {
  const marketplace = await getMarketplace(marketplaceName);
  const entry = marketplace?.plugins.find(p => p.name === pluginName);
  if (entry && typeof entry.source === 'string') {
    return `Local plugins cannot be updated remotely. To update, modify the source at: ${entry.source}`;
  }
  return null;
}

/**
 * Filter out plugins that are force-disabled by org policy (policySettings).