How to distinguish which process the output stream line comes from

[LookRain]

I have a output stream looking like this, however it doesn't work reliably because some lines simply do not have a prefix.

const outputStream = {
  write: (data) => {
    if (['[SDK]', '[bundle]', '[dts]'].some((str) => data.includes(str))) {
      sdkStream.write(data);
    } else if (data.includes('[Demo App]')) {
      demoStream.write(data);
    }
  },
};

May I know if there's any way I can tell reliably which process a line is coming form? Many thanks!

[gustavohenke]

Not really. What you have is the best way right now.

However, we can change the output stream to have the command object alongside the text.
This would be a breaking change though.

PRs welcome, should be an easy change!