find static method

Future<FlutterSdk?> find(String projectRoot, { String? configured, Map<String, String>? environment, Duration timeout = const Duration(seconds: 20), })

locate, and when that finds nothing, the SDK the first flutter on the PATH says it runs (flutterRoot from flutter --version --machine): how a snap's launcher, or a version manager's shim, is found. The launcher gets timeout (a first run can set its SDK up for minutes); then it is stopped, with what it started, and taken as not knowing. Its answer is kept for the rest of this process.

Implementation

static Future<FlutterSdk?> find(
  String projectRoot, {
  String? configured,
  Map<String, String>? environment,
  Duration timeout = const Duration(seconds: 20),
}) async {
  final env = environment ?? Platform.environment;
  final found = locate(projectRoot, configured: configured, environment: env);
  if (found != null) return found;
  final launcher = _launchers(env).firstOrNull;
  if (launcher == null || _asked.containsKey(launcher)) return null;
  final root = _asked[launcher] = await _askLauncher(launcher, env, timeout);
  return root != null && FlutterSdk(root).exists ? FlutterSdk(root) : null;
}