/// <summary>
/// Async wrapper for OptionHelper.RunScriptAsync.
/// </summary>
protected async Task <int> Execute(ExecutionArgs args, TaskToken task)
{
var outputBuilder = new StringBuilder();
var errorBuilder = new StringBuilder();
int?exitcode = null;
var terminator = OptionHelper.RunScriptAsnyc(
args.startInfo, args.input,
(output) => {
outputBuilder.AppendLine(output);
args.onOutput?.Invoke(output);
},
(error) => {
errorBuilder.AppendLine(error);
args.onError?.Invoke(error);
},
(code) => {
exitcode = code;
}
);
while (exitcode == null)
{
if (task.cancellation.IsCancellationRequested)
{
terminator(true);
task.ThrowIfCancellationRequested();
}
await Task.Yield();
}
// 137 happens for Kill() and 143 for CloseMainWindow(),
// which means the script has been canceled
if (!args.silentError && exitcode != 0 && exitcode != 137 && exitcode != 143)
{
throw new Exception(string.Format(
"{0}: Failed to execute {1} (code {2}): {3}\nOutput: {4}",
name, Path.GetFileName(args.startInfo.FileName), exitcode,
errorBuilder.ToString(), outputBuilder.ToString()
));
}
return(exitcode.Value);
}
