private async Task <Uri> RunKestrel()
{
await package.EnsurePublished();
var operation = Log.OnEnterAndExit();
var process = CommandLine.StartProcess(
Dotnet.Path.FullName,
package.EntryPointAssemblyPath.FullName,
package.Directory,
StandardOutput.OnNext,
StandardError.OnNext,
("ASPNETCORE_DETAILEDERRORS", "1"),
("ASPNETCORE_URLS", $"http://127.0.0.1:0"),
("ASPNETCORE_PORT", null));
_disposables.Add(() =>
{
operation.Dispose();
process.Kill();
});
_disposables.Add(StandardOutput.Subscribe(s => operation.Trace(s)));
_disposables.Add(StandardError.Subscribe(s => operation.Error(s)));
var kestrelListeningMessagePrefix = "Now listening on:";
var uriString = await StandardOutput
.Where(line => line.Contains(kestrelListeningMessagePrefix))
.Select(line => line.Replace(kestrelListeningMessagePrefix, ""))
.FirstAsync();
operation.Trace("Starting Kestrel at {uri}.", uriString);
return(new Uri(uriString));
}