tell me when the server is listening

[alexch]

if possible, detect when the server has not only launched but is listening to the port and ready to accept requests

this may require some config.ru snooping or CL params to figure out what port to check

[RaVbaker]

I will like this feature very much. I can also try to code it. :)

[alexch]

I think an additional command-line param / config file setting like --wait-for-port 1234 would be the easiest way.

[RaVbaker]

I have been also thinking about it and you're right. Explicit checking port could be easiest way.