ci: Cache Bazel data from linting step #242
Merged
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Right now, we keep rebuilding protoc from scratch
(as a dependency of Buildifier...?) which takes several
minutes, making the linting step slower than the
ci.yml workflow. We should just cache things.
Ideally, we would just depend on pre-built buildifier
binaries, such as in https://github.com/keith/buildifier-prebuilt,
but we don't want to have divergence in the build
config from upstream, if possible.
Test plan
See if linting step speeds up in subsequent PRs.