Regarding generation of *.cc and *.h files from proto files

[Gaurav0411GitHub]

Please find the steps here
Step1: I have compiled gRPC with below commands and I got protoc compiler and Protobuf shared library along with gRPC
git clone -b v1.59.4 https://github.com/grpc/grpc
cd grpc; git checkout -b v1.59.4
git submodule update --init --recursive
cmake -DgRPC_INSTALL=ON
-DCMAKE_BUILD_TYPE=Release
-DgRPC_BUILD_TESTS=OFF
-DCMAKE_INSTALL_PREFIX=/usr/local
-DBUILD_SHARED_LIBS=ON
../..
make -j$(nproc)
make install

Step2: I have downloaded envoy api dependencies with the below command
git clone -b v0.15.0 https://github.com/google/cel-spec.git
git clone -b v0.4.1 https://github.com/census-instrumentation/opencensus-proto.git
git clone -b v1.1.0 https://github.com/open-telemetry/opentelemetry-proto.git
git clone -b v0.6.1 https://github.com/prometheus/client_model.git
git clone -b v1.0.4 https://github.com/bufbuild/protoc-gen-validate.git
git clone https://github.com/googleapis/googleapis.git; cd googleapi; git checkout 114a745b2841a044e98cdbb19358ed29fcf4a5f1
git clone https://github.com/cncf/xds.git; cd xds; git checkout 0c46c01016dc5c9aeddf6c745a230c32bf62841d

Step3: when I am trying to generate the *.cc and *.h file from *.proto files of above repository from the attached script.txt
script.txt
I am getting below errors. I have attached the error.txt which show errors
error.txt
It looks like *.cc and *.h files are not generate correctly. Please let me know how can I correct it.

Step4: I am using below
Python 3.12.3
gcc (GCC) 11.2.1 20220127 (Red Hat 11.2.1-9)
Rocky Linux release 8.5 (Green Obsidian)

Please suggest me, how can I generate complete *.cc and *.h files from *.proto files?

[eugeneo]

It is not clear what you are trying to achieve, e.g. why you need to generate the files.

I would like to refer you to the gRPC examples - https://github.com/grpc/grpc/tree/master/examples/cpp/helloworld - they show you how to build proto libraries with CMake and Bazel.

[Gaurav0411GitHub]

I want to create shared library of envoy_api, all above envoy_api_dependencies which I have mentioned above.
I want to generate *.cc and *.h files from *.proto of envoy_api and envoy_api_dependencies so that I can make shared library of envoy api and envoy api dependencies.
As we can create these *.cc and *.h files from *.proto using gRPC and Prcotoc compiler and these *.cc and *.h files from *.proto are looking incomplete so envoy community has redirected me to gRPC. so I want to generate *.cc and *.h files with your help. That's why I have shared all the steps. which I have followed. I have seen already the example But I could not find the steps for generating *.cc and *.h files from *.proto files

[Gaurav0411GitHub]

Could you please suggest me the steps of testing the envoy-api using gRPC and xds in c++ examples?
https://blog.envoyproxy.io/the-universal-data-plane-api-d15cec7a