--proto_path and input_files options for ProtoGenConfig

[thng292]

I'm trying to generate code using some (not all) proto files from https://github.com/openxla/xla but there isn't any options to specify which file to generate zig code from.

Here is a working protoc command for my use case:

protoc --cpp_out=lasfd \
  --proto_path . --proto_path third_party/tsl \
  "xla/autotune_results.proto" \
  "xla/autotuning.proto" \
  "xla/pjrt/proto/compile_options.proto" \
  "xla/stream_executor/cuda/cuda_compute_capability.proto" \
  "xla/stream_executor/device_description.proto" \
  "xla/tsl/protobuf/dnn.proto" \
  "xla/service/hlo.proto" \
  "xla/service/metrics.proto" \
  "xla/xla_data.proto" \
  "xla/xla.proto"

There should be more ways to specify inputs and an options to specify imports directories.

[batsuev]

As far as I understand, you need two things:

1. An explicit file list - selecting specific proto files to compile rather than compiling everything and excluding some. .ignore_masks is the inverse of what's needed and would be fragile for a large repo like XLA.
2. Multiple proto search paths — equivalent to passing multiple --proto_path flags to protoc, since your imports resolve against more than one root (. and third_party/tsl). Defining multiple proto gen steps wouldn't help here either.

Is that right?

[thng292]

Yes