Evaluator commands duff `out/mill-chrome-profile.json`

[lefou]

Evaluator commands make the out/mill-chrome-profile.json un-useful since they seem to overwrite it.

Here is an example, where idea is a customized derivate of mill.idea.GenIdea/idea.

While the command is still running, I can see a partially filled out/mill-chrome-profile.json with lots of details:

But after the command finishes, the out/mill-chrome-profile.json looks less useful:

[lihaoyi]

Maybe every time we open mill-chrome-profile.json, we should check if one exists, and if one does then open mill-chrome-profile-2.json mill-chrome-profile-3.json etc.. We can wipe out all mill-chrome-profile*.jsons at the start of each run. This would ensure that all profiles are saved, even if multiple evaluation runs are started re-entrantly

The same should probably be done for the other mill-* debug files, mostly mill-profile.json I think

[lefou]

I think this is because evaluator command use dedicated evaluator instances which don't use the outer profile logger. Instead, we could pass the profile logger around.

[lihaoyi]

oh yeah that's also an option. Then the same profile would show tasks from all evaluations, which would be even better