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workflows: centralize and optimize setup-bazel configuration - #4227
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rickeylev merged 1 commit intoOct 6, 2026
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GitHub Actions workflows previously invoked `bazel-contrib/setup-bazel` without caching or build optimizations, causing each run to download Bazel, Python toolchains, PyPI wheels, and the pyrefly type checker from scratch. Extract a shared composite action that configures `setup-bazel` with bazelisk, disk, and lockfile-aware repository caches. Disable the default `pyrefly` output group and select the `install_only_stripped` Python distribution to avoid unnecessary toolchain downloads and type-checking overhead during operational workflow runs.
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GitHub Actions workflows previously invoked
bazel-contrib/setup-bazelwithout caching or build optimizations, causing each run to download
Bazel, Python toolchains, PyPI wheels, and the pyrefly type checker
from scratch.
Extract a shared composite action that configures
setup-bazelwithbazelisk, disk, and lockfile-aware repository caches. Disable the
default
pyreflyoutput group and select theinstall_only_strippedPython distribution to avoid unnecessary toolchain downloads and
type-checking overhead during operational workflow runs.