Hi, Previous efforts to gather and publish C++ code coverage using the free service provided by coveralls.io have stalled (see ARROW-27).
I went ahead and experimented with another free service, codecov.io. I got it to work with our C++ and Rust code bases. An example report can be seen here: https://codecov.io/gh/apache/arrow/list/8804ab50118f46139986acc435d740cb536f08f4/ The proposed changes are in PR #2023. The two platforms, codecov.io and coveralls.io, seem largely similar: they provide free hosting for code coverage reports, support a range of programming languages and code coverage formats, and display compute coverage changes accross repository commits. I find codecov.io slightly more readable but that's just a personal opinion. Do people or the Apache project have a strong preference for one of those two services? Regards Antoine.
