What's this?

These are core protos that are used in the protoc_plugin generator. They allow us to read generation requests from the protoc tool as well as parse extensions from protos for things like gRPC generation parameter and other config information.

Regenerating

To regenerate the Dart code from the current protos, run:

make update-pregenerated

This will generate the associated Dart code in lib/src/gen/.

Updating the protos

To update the vendored protos to the most recent versions, run: dart tool/update_protos.dart. Then, run make update-pregenerated to rebuild the Dart libraries in lib/src/gen/.

The contents of google/protobuf/ can be found at https://github.com/protocolbuffers/protobuf/tree/main/src/google/protobuf.

All other ‘google’ protos can be found at https://github.com/googleapis/googleapis/tree/master/google.

dart_options.proto is hand-maintained.