Function invokeWithRetry

ng-dev/utils/git/github.ts:33–68

Helper to invoke an async function with retries.

(fn: () => Promise<T>, retries = 3, delay = 1000)

/** Helper to invoke an async function with retries. */
async function invokeWithRetry<T>(fn: () => Promise<T>, retries = 3, delay = 1000): Promise<T> {
  let attempt = 0;
  while (attempt < retries) {
    try {
      return await fn();
    } catch (e) {
      attempt++;
      if (attempt >= retries) {
        throw e;
      }

      // Do not retry valid 4xx Client Errors (especially 404 Not Found)
      if (isGithubApiError(e) && e.status < 500) {
        throw e;
      }

      // Do not retry permanent GraphQL errors
      if (e instanceof GraphqlResponseError) {
        if (!e.errors) {
          throw e; // Missing errors, assume permanent or unknown
        }
        if (
          e.errors.every((err) =>
            ['NOT_FOUND', 'FORBIDDEN', 'BAD_USER_INPUT', 'UNAUTHENTICATED'].includes(err.type!),
          )
        ) {
          throw e;
        }
      }

      Log.warn(`GitHub API call failed (attempt ${attempt}/${retries}). Retrying in ${delay}ms...`);
      await new Promise((resolve) => setTimeout(resolve, delay));
    }
  }
  throw new Error('Unreachable');
}

/** Creates a proxy that intercepts function calls and applies retries. */
function createRetryProxy<T extends object>(target: T): T {