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ptvsd.adapter should support debugServer in launch.json #1556

int19h opened this issue Jul 2, 2019 · 0 comments


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commented Jul 2, 2019

ptvsd.adapter package currently only communicates with the IDE over stdin/out, as is usual for DAP. However, this is inconvenient for testing and debugging, since it requires it to be registered as a debugger extension with VSCode.

To simply this, we can use the debugServer option that VSCode provides in launch.json, whereby it connects to an already-running debug adapter over the specified port:

This requires the adapter to support an incoming socket connection. It does not need to be a true server - it only has to listen for and accept a single connection, at the very beginning, where it currently does this:

def main():
import ptvsd
from ptvsd.common import log
from ptvsd.adapter import channels
chan = channels.Channels()

Since it still needs to work in stdin/out mode by default, this should be configurable via a command line switch that accepts the port number.

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