Proposal: Rename opentelemetry-proto/src/proto/tonic module

[psandana]

As mentioned in open-telemetry/opentelemetry-rust-contrib#134 (comment), OpenTelemetry use proto defined structs from this tonic module. Despite the name references Tonic, they are pretty generic, not restricted by Tonic scenarios.

Thus, I propose to rename the module to better describe the contents.

https://github.com/open-telemetry/opentelemetry-rust/tree/main/opentelemetry-proto/src/proto/tonic

The first obvious option to me, is just to place the proto/tonic/* files directly in the proto/ folder. This more-or-less follows the name they got from the upstream opentelemetry-proto repo.

[lalitb]

@psandana - Agree with the change. Moving directly to proto/ dir, or else to src/generated dir ( so src contains proto, generated and transform dirs). And I think it would make sense to keep it non-breaking, by still keeping the tonic as an alias?

[psandana]

If you prefer to keep tonic as an alias, I think it is ok. Why is the reason to keep it as is? If you still plan to remove, just not now, I would suggest adding a deprecation notice.

[lalitb]

Why is the reason to keep it as is? If you still plan to remove, just not now, I would suggest adding a deprecation notice.

Yes, want to deprecate and then remove.

[psandana]

FYI, there is a feature gen-tonic-messages. Shall this be renamed also?