/// <summary>
/// Executes an Android Sdk tool and returns a result. The result is based on a function of the command output.
/// </summary>
public static Task <TResult> ExecuteToolAsync <TResult> (string exe, Func <string, TResult> result, CancellationToken token, Action <Process>?onStarted = null)
{
var tcs = new TaskCompletionSource <TResult> ();
var log = new StringWriter();
var error = new StringWriter();
var psi = new ProcessStartInfo(exe);
psi.CreateNoWindow = true;
psi.RedirectStandardInput = onStarted != null;
var processTask = ProcessUtils.StartProcess(psi, log, error, token, onStarted);
var exeName = Path.GetFileName(exe);
processTask.ContinueWith(t => {
var output = log.ToString();
var errorOutput = error.ToString();
log.Dispose();
error.Dispose();
if (t.IsCanceled)
{
tcs.TrySetCanceled();
return;
}
if (t.IsFaulted)
{
tcs.TrySetException(t.Exception?.Flatten()?.InnerException ?? t.Exception !);
return;
}
if (t.Result == 0)
{
tcs.TrySetResult(result != null ? result(output) : default(TResult) !);
}
else
{
var errorMessage = !string.IsNullOrEmpty(errorOutput) ? errorOutput : output;
errorMessage = string.IsNullOrEmpty(errorMessage)
? $"`{exeName}` returned non-zero exit code"
: $"{t.Result} : {errorMessage}";
tcs.TrySetException(new InvalidOperationException(errorMessage));
}
}, TaskContinuationOptions.ExecuteSynchronously);
return(tcs.Task);
}
void FixOwnership(List <string>?paths)
{
if (!need_chown || paths == null || paths.Count == 0)
{
return;
}
var stdout = new StringWriter();
var stderr = new StringWriter();
var args = new List <string> {
QuoteString(sudo_user !)
};
foreach (string p in paths)
{
args.Add(QuoteString(p));
}
var psi = new ProcessStartInfo(OS.IsMac ? "/usr/sbin/chown" : "/bin/chown")
{
CreateNoWindow = true,
Arguments = String.Join(" ", args),
};
Logger(TraceLevel.Verbose, $"Changing filesystem object ownership: {psi.FileName} {psi.Arguments}");
Task <int> chown_task = ProcessUtils.StartProcess(psi, stdout, stderr, System.Threading.CancellationToken.None);
if (chown_task.Result != 0)
{
Logger(TraceLevel.Warning, $"Failed to change ownership of filesystem object(s)");
Logger(TraceLevel.Verbose, $"standard output: {stdout}");
Logger(TraceLevel.Verbose, $"standard error: {stderr}");
}
string QuoteString(string p)
{
return($"\"{p}\"");
}
}
}
