This problem was solved already https://bazel.build/basics/hermeticity https://bazel.build/basics/hermeticity Although I should add that a hermetic config for

This problem was solved already https://bazel.build/basics/hermeticity https://bazel.build/basics/hermeticity Although I should add that a hermetic config for bazel is not something you just throw together in an afternoon. And yes, that's work you do before the first bit of source gets compiled. It's worth it though.