private static Task <ProcessResult> StartProcess(string command, int resultLimit, params string[] arguments)
{
var pars = new ProcessTaskParams {
ResultLinesLimit = resultLimit
};
return(StartProcessFull(command, ProcessPriorityClass.Normal, pars, null, null, arguments));
}
private bool disposedValue; // To detect redundant calls
public ProcessResult(Process proc, ProcessTaskParams parameters)
{
Parameters = parameters;
Process = proc;
}
private static Task <ProcessResult> StartProcessFull(
string command,
ProcessPriorityClass priorityClass,
ProcessTaskParams parameters,
Action <string> progress,
CancellationToken?cancellation,
params string[] arguments)
{
var proc = new Process
{
StartInfo = new ProcessStartInfo
{
FileName = command,
Arguments = string.Join(" ", arguments),
RedirectStandardError = true,
RedirectStandardOutput = true,
CreateNoWindow = true,
UseShellExecute = false,
ErrorDialog = false,
StandardOutputEncoding = Encoding.UTF8,
StandardErrorEncoding = Encoding.UTF8,
},
EnableRaisingEvents = true,
};
var exited = new TaskCompletionSource <ProcessResult>();
var result = new ProcessResult(proc, parameters);
proc.Exited += (sender, args) =>
{
var exitcode = proc.ExitCode;
if (exitcode == 0)
{
exited.SetResult(result);
}
else
{
exited.TrySetException(new InvalidOperationException(string.Join("\r\n", result.ErrorLines.Any() ? result.ErrorLines : result.ResultLines)));
}
proc.Dispose();
};
proc.ErrorDataReceived += (sender, args) =>
{
if (!string.IsNullOrWhiteSpace(args.Data))
{
result.ErrorLines.AddLast(args.Data);
if ((result.Parameters.ErrorLinesLimit != -1) && (result.ErrorLines.Count > result.Parameters.ErrorLinesLimit))
{
result.ErrorLines.RemoveFirst();
}
progress?.Invoke(args.Data);
}
};
proc.OutputDataReceived += (sender, args) =>
{
result.ResultLines.AddLast(args.Data);
if ((result.Parameters.ResultLinesLimit != -1) && (result.ResultLines.Count > result.Parameters.ResultLinesLimit))
{
result.ResultLines.RemoveFirst();
}
};
proc.Start();
proc.PriorityClass = priorityClass;
proc.BeginErrorReadLine();
proc.BeginOutputReadLine();
cancellation?.Register(() =>
{
proc.Kill();
proc.Dispose();
exited.TrySetCanceled();
});
return(exited.Task);
}
