Bazel rules for C# · protocolbuffers/protobuf#18352 | Good First Issue

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bazelc#help wanted

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Description

What language does this apply to? C#

Describe the problem you are trying to solve. There are no standard Bazel rules to generate C# source code for protocol buffers.

Describe the solution you'd like A csharp_proto_library to be included as standard as part of @protobuf//bazel

Describe alternatives you've considered

I tried to make sense of the C++/Java/Python rule definitions, but couldn't figure out how to modify them to get protoc to output C# files
I also looked at the following alternative proto rules, but similarly couldn't figure out how to add C# support:
- https://github.com/stackb/rules_proto
- https://github.com/rules-proto-grpc/rules_proto_grpc

Additional context None

Contributor guide

Research direction: Study existing Bazel rules for other languages (e.g., cpp proto library) and understand how protoc generates C# code. Then write a rule that invokes protoc with C# output.
Tech stack: csharp
Domain: build system
Issue type: Feature
Difficulty: 4
Estimated time: 3-5 days
Activity status: Active
Clarity: Clear
Prerequisites: BazelC#Protocol Buffers
Newbie friendliness: 20