protoc tool for ARM architecture in Google.Protobuf.Tools nuget (.NET)

[FooRider]

What language does this apply to?
proto3 for C#

Describe the problem you are trying to solve.
I want to build my project also for ARM architecture. I use protoc to generate C# code during build, but am unable to do so when building on (linux) ARM, because Google.Protobuf.Tools nuget is missing any protoc variant built for ARM.
(I know already generated code works fine, I am just unable to generate it on ARM builders.)

Describe the solution you'd like
I would like the Google.Protobuf.Tools nuget to contain also ARM variants of protoc tool.

Describe alternatives you've considered
Adjusting my build process so that protoc is run in some kind of emulation of x86 architecture.

Additional context
In our projects, generated code is not tracked by git, and we are running protoc as part of build process. This prevents developer errors such as forgetting to regenerate code and forces consistent results in CI.

[acozzette]

Thank you for the bug report. I don't know if we will be able to get to this any time soon given our other priorities, but as a workaround would you be able to use a protoc binary from our release page instead?

[FooRider]

Thank you for the bug report. I don't know if we will be able to get to this any time soon given our other priorities, but as a workaround would you be able to use a protoc binary from our release page instead?

Hi, thanks for the proposed workaround. While it would work, integrating it into our development and CI process would be cumbersome. We generate the code during the BeforeCompile target and rely on NuGet to provide the required tools and their paths.

For now, I’ve worked around the issue by enabling x86 emulation on the necessary CI workers. Since only a few developers and CI runners build our project, this has been manageable.

However, after reviewing your repository, I believe I could create a PR to include an ARM version of protoc as well. Would such a PR be welcome?

[acozzette]

Yes, we would be happy to review a PR to add an arm64 binary.