On Thu, Jul 27, 2023, 6:47 AM Daniel P. Berrangé <berra...@redhat.com> wrote:
> On Wed, Jul 26, 2023 at 04:25:34PM -0400, John Snow wrote: > > Hi folks, > > > > I'm currently wondering how to take a StreamReader as found on > > > https://docs.python.org/3/library/asyncio-subprocess.html#asyncio.subprocess.Process > > and to consume the data while optionally re-streaming it to a > > secondary consumer. > > > > What I'd like to do is create a StreamWatcher class that consumes > > console data while optionally logging to python logging and/or a file; > > but re-buffers the data into an async stream where an additional > > consumer is free to use the "standard asyncio API" to consume console > > data at their leisure in a way that's unsurprising. > > > > What I'd like this *for* is to be able to do aggressive logging of > > stdout/stderr and console data without denying tests the ability to > > consume the data as they see fit for their testing purposes. I want to > > have my cake and eat it too, and we don't do a good job of managing > > this consistently across the board. > > > > I am wondering if there's any way around creating a literal socketpair > > and suffering the creation of a full four StreamReader/StreamWriter > > instances (one pair per socket...) and then just hanging on to the > > "unused" reader/writer per each. It seems kind of foolishly excessive. > > It also seems like it might be a pain in the butt if I want > > cross-platform compatibility with windows for the machine appliance. > > > > Anyone got any bright ideas? > > Don't bother with any of the above, just add 'logfile=/path/to/log' > to the -chardev argument. > Part of me feels like it'd be a shame to miss out on the chance to do the logging in the library, but it *would* be a lot easier to just not worry about it. > anyway, this is easy for console, what about stdio? is there a way to run that through a chardev that's just connected to stdio but we attach a logfile? > With regards, > Daniel > -- > |: https://berrange.com -o- > https://www.flickr.com/photos/dberrange :| > |: https://libvirt.org -o- > https://fstop138.berrange.com :| > |: https://entangle-photo.org -o- > https://www.instagram.com/dberrange :| > >
