/// <summary>
/// Move through everything in the input stream until it looks like we are looking at a prompt.
/// </summary>
/// <param name="shell"></param>
public static async Task <string> WaitTillPromptText(this ShellStream shell)
{
const int promptTimeout = 20;
var timeout = DateTime.Now + TimeSpan.FromSeconds(promptTimeout);
var allText = new StringBuilder();
while (true)
{
while (shell.Length == 0 && timeout > DateTime.Now)
{
await Task.Delay(10);
}
if (shell.Length == 0)
{
throw new NoLinuxShellPromptSeenException($"It could be that the remote machine isn't responding - didn't get anything that looked like a prompt in {promptTimeout} seconds");
}
string line;
while ((line = await shell.ReadLineAsync(TimeSpan.FromMilliseconds(10))) != null)
{
//Trace.WriteLine("WaitTillPromptText: read text: " + line, "SSHConnection");
allText.AppendLine(line);
}
if (shell.Length > 0)
{
return(allText.ToString());
}
}
}
