Development

Recompiling the lib proto files

After some updates in the compiler, it might be useful to recompile the standard Google proto files used by the compiler. As the proto files are distributed with protoc, their path might depend on your installation.

mkdir lib
protoc \
    --python_betterproto2_out=lib \
    -I /usr/include/ \
    /usr/include/google/protobuf/*.proto

Warning

These proto files are written with the proto2 syntax, which is not supported by betterproto. For the compiler to work, you need to manually patch the generated file to mark the field oneof_index in Field and FieldDescriptorProto optional.

In the compiler, you also need to compile the plugin.proto file in src/betterproto2_compiler/lib/google.protobug/compiler/__init__.py.