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protobuf.md

Generally: protoc -flag param:param:param target-file.proto --plugin_flag=key=value,key=value:./dest/

For example: protoc -I .:.. foo.proto --go_out=plugins=grpc,paths=source_relative:.

This means:

1. Run protoc on foo.proto
2. Any other proto files in the current directory or the parent directory should be available for import.
3. Generate a foo.pb.go file for gRPC using protoc-gen-go.
4. If foo.proto were to have a declaration of option go_package = "github.com/bar/baz"; the protoc-gen-go plugin would normally create ./github.com/bar/baz/foo.pb.go but paths=source_relative makes it simply write ./foo.pb.go.