Show annotation when logging exception

[emiltin]

Uncaught exceptions in tasks is shown in a format starting with a line like this:

  0.0s    error: Async::Task [oid=0x3c] [pid=9016] [2020-12-16 21:01:17 +0100]

It would be useful if the task annotation was shown, to quickly identify the failed task.

[ioquatix]

It's a nice idea.

[ioquatix]

require '../lib/async'

Async do |task|
	task.annotate "I'm going to fail!"
	raise "Boom"
end

Results in:

[ioquatix]

What do you think?

[emiltin]

That would work!

I was wondering if it could be in the line:
Async::Task [oid=0x3c] [pid=9016] [2020-12-16 21:01:17 +0100]

But maybe that's output by Ruby and cannot be changed?

[ioquatix]

It's probably more that it's just too long to put on the same line.

[ioquatix]

But maybe that's output by Ruby and cannot be changed?

It's part of the console gem, it can be changed, but I guess we should consider it could be a long annotation.

[emiltin]

Right, it can be long. A line of it's own is probably better.

[ioquatix]

Just for continuity, I'm still considering how best to integrate this feature: https://bugs.ruby-lang.org/issues/19056

[ioquatix]

In the latest commit of Async and Console gems, this is now possible. It's implemented by a shared gem, finer-annotation. Anyone can use it.

[ioquatix]

If you have any thoughts about better formatting, please feel free to open an issue/PR on the console gem.

https://github.com/socketry/console

(I already noticed the color issue of the annotation, so I'll fix it).