Retroactively time partition an existing table #1151

	name: clang-format

	on:
	pull_request: { branches: ["main"] }

	# If someone pushes a new commit to a branch, ensure that only the latest commit
	# is built to avoid wasting runner minutes.
	concurrency:
	group: ${{ github.workflow }}-pr-${{ github.event.pull_request.number \|\| github.run_id }}
	cancel-in-progress: true


	jobs:
	clang-format:
	runs-on: ubuntu-latest
	continue-on-error: true
	env:
	CLANG_FORMAT: "clang-format"
	defaults:
	run:
	# Make sure to fail any "run" step early on so that steps don't silently
	# pass even when errors may have occurred.
	shell: bash -o errexit -o nounset -o pipefail {0}
	steps:
	- name: Checkout code
	uses: actions/checkout@v4
	with: { fetch-depth: 0 }

	- name: Install clang-format
	run: \|
	sudo apt-get update
	sudo apt-get install -y clang-format
	$CLANG_FORMAT --version

	- name: Run format check
	run: \|
	base_repo="${{ github.event.pull_request.base.repo.full_name \|\| github.repository }}"
	base_url="https://github.com/${base_repo}.git"

	# Fetch the base branch into a unique namespace
	git fetch --no-tags --prune --depth=1 "${base_url}" \
	"refs/heads/${GITHUB_BASE_REF}:refs/remotes/__base__/${GITHUB_BASE_REF}"

	# Compute merge-base vs the fetched ref
	base_commit="$(git merge-base HEAD "refs/remotes/__base__/${GITHUB_BASE_REF}")"

	echo "Running format checking against base commit ${base_commit}"

	format_flags=(--verbose --dry-run --compare-base "${base_commit}")
	if [[ "${RUNNER_DEBUG:-0}" == "1" ]]; then
	format_flags+=(--super-verbose)
	fi
	./ci/scripts/format "${format_flags[@]}"

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