serve function
If there is an invalid configuration, exitCode will be set to a non-zero value and the returned Future will completes quickly.
If there are no configuration errors, the returned Future will not complete until the process has received signal ProcessSignal.sigterm or ProcessSignal.sigint.
Implementation
Future<void> serve(
List<String> args,
FunctionTarget? Function(String) nameToFunctionTarget,
) async {
try {
await _serve(args, nameToFunctionTarget);
} on BadConfigurationException catch (e) {
stderr.writeln(red.wrap(e.message));
if (e.details != null) {
stderr.writeln(e.details);
}
exitCode = ExitCode.usage.code;
}
}