isFullyQualifiedStackName function
Returns true when stackName is owner/project/stack.
Implementation
bool isFullyQualifiedStackName(String stackName) {
if (stackName.isEmpty) {
return false;
}
final parts = stackName.split('/');
return parts.length == 3 &&
parts[0].isNotEmpty &&
parts[1].isNotEmpty &&
parts[2].isNotEmpty;
}