Add CodeCov

[psschwei]

In a number of projects I've worked on before, we've used CodeCov for checking code coverage.
Opening a poll here to gauge interest in using CodeCov with Mellea.

[planetf1]

For taking snapshots we have code coverage metrics generated -- and of course these have been used to improve coverage.
Claude (combined with a writing-tests skill) does a pretty good job of adding new tests (not to say that other tools may do even better)

However there's also an issue about tracking coverage over time. We'd need to instrument our ci, catch the data, and report. Not necessarily hard, but takes a little time. Using a tool that makes this easy, and can visualize for reporting could be useful - though I think a £$ is involved?

Generally i'd prefer to do what we can with open source tooling, and not make things too complex.... but not hard adding if it's not a hard requirement but added value that saves us time & improves quality

[psschwei]

though I think a £$ is involved?

free for open source

[planetf1]

Ok having taken a quick look it seems it's mostly a case of uploading the xml file we already generate. Then there's a registration step and a github action to integrate with CI.

That would make it easy and worth trying it out. I'd be happy to look at setting that up (we should convert this into an issue, or open an explicit targetted one if so for our iteration planning). Will be interesting to compare it with the coverage tables i've been creating (summary snapshots, via llm)

[psschwei]

Works for me
Let's also give it a day or so for others a chance to weigh in

[planetf1]

The first issue will be https://about.codecov.io/terms-of-service/

[psschwei]

Given that we only had 1 response, I'm going to take that as this is not something we should spend our time on now when there are lots of other things we could be doing.