spawn static method

Future<IoLspTransport> spawn({ required String command, required List<String> args, required String cwd, })

Spawns command with args in cwd. Throws LspServerUnavailableException when the executable cannot be started (e.g. not on PATH) so the lsp tool degrades to a clean error result instead of crashing.

Implementation

static Future<IoLspTransport> spawn({
  required String command,
  required List<String> args,
  required String cwd,
}) async {
  final Process process;
  try {
    process = await Process.start(
      command,
      args,
      workingDirectory: cwd,
      mode: ProcessStartMode.normal,
    );
  } on Object catch (error) {
    throw LspServerUnavailableException(
      'cannot start LSP server `$command`: $error. '
      'Is it installed and on PATH?',
      cause: error,
    );
  }
  return IoLspTransport._(process);
}