Pekko-gRPC support on Apple Silicon (M1 / M2)

[jonathan-neufeld-asurion]

Is there a plan to support Apple Silicon for Pekko-gRPC? Protocol buffers does not generate the class files in versions prior to Akka @ v2.7 + sbt-akka-grpc plugin @ v2.2.1, there is a missing native dependency:

[error] stack trace is suppressed; run last model / protocExecutable for the full output
[error] (model / protocExecutable) lmcoursier.internal.shaded.coursier.error.FetchError$DownloadingArtifacts: Error fetching artifacts:
[error] https://repo1.maven.org/maven2/com/google/protobuf/protoc/3.13.0/protoc-3.13.0-osx-aarch_64.exe: not found: https://repo1.maven.org/maven2/com/google/protobuf/protoc/3.13.0/protoc-3.13.0-osx-aarch_64.exe
[error] Total time: 1 s, completed Jun 7, 2023, 8:00:31 PM

Related issue: grpc/grpc-java#7690

Since Pekko is branched from Akka 2.6 I am concerned that we will run into the above issue with Pekko and protocol buffers. We resolved it by upgrading Akka to v2.7 and the Akka-gRPC SBT plugin to v2.2.1.

[pjfanning]

protoc 3.13.0 doesn't support osx-aarch but newer versions like 3.23.2 seem to.

Have a look in https://repo1.maven.org/maven2/com/google/protobuf/protoc/3.23.2/

Could you try modifying your checkout to use this version instead to see how the build progresses?

[jonathan-neufeld-asurion]

Using the plugin at version 2.1.6 was the trick, it does not require v2.7 of Akka.

[mdedetrich]

I just wanted to mention that I also use Apple M1 as my primary development machine and don't have issues with Pekko grpc