- Allow specifying prefix and strip_prefix arguments for proto files.
The proto directory tree is built as specified in the out directory.
- Only invoke protoc from the default toolchain. This prevents duplicate
protoc invocations.
- Prevent duplicate pw_proto_library Python package definitions anywhere
in the build.
- Replace implicit handling of standalone external protos with a
python_package_as_module option.
Change-Id: Id37d8b4d83294f7d3142a389e74ceea96dd4d620
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/34640
Reviewed-by: Alexei Frolov <frolv@google.com>
