Bazel 5 is going to be a second long term support release.
Changes from bazel_4:
- compile java_tools (such as ijar) using nix-provided jdk
- local jvm and jdk are now passed using --tool_java_runtime_version, --tool_java_runtime_version and --extra_toolchains flags
see https://docs.bazel.build/versions/5.0.0/bazel-and-java.html for details
- update-srcDeps.py: distdir_tar function renamed to _distdir_tar to properly parse bazel query output executed against bazel 5 sources
- bazel_5.updater: uses bazel_4 to generate src-deps.json. This change was required to handle json.decode calls in bazel 5 dependencies
- protobuf-test and java-test adjusted to take into consideration both jdk 8 (for Bazel < 5.0.0) and jdk 11 (for Bazel >= 5.0.0)
https://blog.bazel.build/2022/01/19/bazel-5.0.htmlhttps://github.com/bazelbuild/bazel/releases/tag/5.0.0
- bump protobuf to 3.13.0
- use recent rules_proto
- use recent bazel-skylib
- remove use of native.bind
Hopefully this is backward-compatible with bazel_3 and below
- Upgraded dependencies
- dependencies script upgraded to take into account new WORKSPACE
rules
- Tests now depends on the `distdir`
Runtime bazel now also depends on the `distdir` setting which appears
in the global configuration file. This increases the bazel closure
size by 85 MO for stuffs which can normally be downloaded at runtime
by bazel. However, any invocation of `buildBazelPackage` (such as in
`bazel-watcher`) may fail in nix sandbox if theses files are not
available at runtime.
If this overhead is too important, we may later evolve to a finer
grained solution, where buildBazelPackage declares the list of
necessary dependencies.
On Darwin, the last argument to GCC is coming up as an empty string.
This is breaking the build of proto_library targets. However, I was not
able to reproduce with the example cpp project[0].
This commit patches the cc_wrapper of Bazel that gets installed on
Darwin to remove the last argument if it's an empty string. This is
not a probem on Linux.
[0]: https://github.com/bazelbuild/examples/tree/master/cpp-tutorial/stage3
