Flight

Generated Code

The prost/tonic code can be generated by running, which in turn invokes the Rust binary located in gen

This is necessary after modifying the protobuf definitions or altering the dependencies of gen, and requires a valid installation of protoc.

./regen.sh

Why Vendor

The standard approach to integrating prost-build / tonic-build is to use a build.rs script that automatically generates the code as part of the standard build process.

Unfortunately this caused a lot of friction for users:

• Requires all users to have a protoc install in order to compile the crate - #2616
• Some distributions have very old versions of protoc that don't support required functionality - #1574
• Inconsistent support within IDEs for code completion of automatically generated code