node --inspect/--inspect-brk incompatible with nx task runner

Current Behavior

on node --inspect-brk ./node_modules/.bin/nx build best-app, post attach, I cannot debug due to port conflict:

Debugger listening on ws://127.0.0.1:9229/10537d99-1102-40aa-8820-a5993dce9841
For help, see: https://nodejs.org/en/docs/inspector
Debugger attached.

> nx run best-app:build
Starting inspector on 127.0.0.1:9229 failed: address already in use
Waiting for the debugger to disconnect...

Port 9229 is otherwise free–it is not used until this very node process begins.

Expected Behavior

node --inspect-brk $(yarn bin)/nx build best-app to allow me to debug my application’s build pipeline

Steps to Reproduce

reproduction and instructions can be found here: https://github.com/cdaringe/nxtester/tree/demo/no-debugging

[jkolyer]

@isaacplmann Got debugging working in VSCode. I’d be happy to collaborate on a debugging techniques document if you want to make a template I can add to.

[FrozenPandaz]

Thanks for reporting the issue 😄

This is due to fork being used to run the command… We’ll have to investigate how to handle this…

If you want to debug the actual build… you should inspect the tao directly.

node --inspect-brk node_modules/.bin/tao build best-app