You can actually input system stuff like this via: https://docs.bazel.build/versions/master/user-manual.html#flag--workspace_status_command https://docs.bazel.b

You can actually input system stuff like this via: https://docs.bazel.build/versions/master/user-manual.html#flag--workspace_status_command https://docs.bazel.build/versions/master/user-manual.html#fl... They already have support for build times and labels, but you can add arbitrary stuff like got hashes too