Add buf breaking
to the CI linter
#26828
Merged
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This PR runs
buf breaking
, a backwards compatibility check for protobufs, as part of the linting in CI.Breakage is checked from the head of the PR against the base and - in backports - from the tip of master against the head of the PR. This helps ensure that no incompatibilities can occur when adding or changing fields in the protobuf messages, and that no incompatibilities can be added while backporting said changes.
In addition, this PR adds a Makefile target
lint-breaking
(alias ofprotos/breaking
) to use for local development, to check compatibility against a specified ref defaulting toorigin/master
.Contributes to #26688