Hi, During the release of 0.15.1-RC0 I literally had to wait days to ensure that the Travis, Appveyor and Crossbow builds were all passing for the release branch. Additionally each newly added patch was delaying the process by 8 hrs or so (actually felt like 16).
Recently I've been working on to incorporate the advantages of the Buildbot setup into our current docker-compose configuration, including support for multiple architectures and platforms, reusing docker images and caching dependency installation steps. It tries to follow the semantics of ursabot, but using only docker-compose and tiny shell scripts. This refactoring also includes GitHub Actions workflows for Windows and macOS as well, reusing the same (bash) builds scripts. The docker configuration and the scripts are CI agnostic. Last but not least, I've managed to clean up a lot of things including every travis builds, and three Appveyor builds. As an example the ci [3] and dev [4] folders got much cleaner. The majority of the builds are passing [2], but due to the size of the pull request [1] reviews for relevant workflows like the JavaScript, C#, Rust, JNI, etc. would be much appreciated. I'll be on vacation until Wednesday, but will try to respond on both GH and the ML. Thanks, Krisztian [1]: https://github.com/apache/arrow/pull/5589 [2]: https://github.com/apache/arrow/runs/275685241 [3]: https://github.com/apache/arrow/tree/9c7e7289b9c9486c13a02e7cb5682a0f9f274ec6/ci [4]: https://github.com/apache/arrow/tree/9c7e7289b9c9486c13a02e7cb5682a0f9f274ec6/dev
