Function isNonZeroExitCode

tstest/integration/integration_test.go:537–548

Returns true if the error returned by [exec.Run] fails with a non-zero exit code, false otherwise.

(err error)

// Returns true if the error returned by [exec.Run] fails with a non-zero
// exit code, false otherwise.
func isNonZeroExitCode(err error) bool {
	if err == nil {
		return false
	}

	exitError, ok := err.(*exec.ExitError)
	if !ok {
		return false
	}

	return exitError.ExitCode() != 0
}

// If we interrupt `tailscale up` and then run it again, we should only
// print a single auth URL.