GEConfig: Remove `optional` from rubik tgt mstone

The `optional` label is disallowed in the proto 3 syntax, and
infra/config outright refuses to work with it. Fields are optional by
default, so the typical fix is to just remove the label.

BUG=b:243532953
TEST=./generate.sh --allow-breaking

Change-Id: I6597f3c5ef893657e4ec91c6ee154cbe93c3ab96
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/infra/proto/+/3852629
Commit-Queue: Benjamin Shai <bshai@google.com>
Reviewed-by: Benjamin Shai <bshai@google.com>
Commit-Queue: Greg Edelston <gredelston@google.com>
Auto-Submit: Greg Edelston <gredelston@google.com>
3 files changed
tree: e87b6b100df65108c8b0deec79ca5f42a4d13d0e
  1. extern/
  2. gen/
  3. go/
  4. infra/
  5. recipes/
  6. src/
  7. .gitattributes
  8. .gitignore
  9. buf.yaml
  10. generate.sh
  11. LICENSE
  12. OWNERS
  13. PRESUBMIT.cfg
  14. PRESUBMIT.py
  15. README.md
  16. setup_cipd.sh
  17. unblocked_terms.txt
README.md

infra/proto

infra/proto vs chromite/infra/proto

This repository exists in two locations in the tree: infra/proto, and chromite/infra/proto. The infra/proto repository is always at ToT, while the chromite/infra/proto checkout is branched to allow the proto there to (more) accurately reflect the version of the proto the Build API is using.

When making changes to the proto that you need to test in the Build API, you will need ensure the changes are applied to the chromite/infra/proto checkout. Chromite generates its proto bindings from the chromite/infra/proto repo.