Implement Language4 package, banning obsolete language features. #1057

	name: Validate Query Test Case Formatting
	on:
	merge_group:
	types: [checks_requested]
	pull_request:
	branches:
	- main
	- next
	- "rc/**"

	env:
	XARGS_MAX_PROCS: 4

	jobs:
	validate-test-case-files:
	runs-on: ubuntu-22.04
	strategy:
	matrix:
	language: [cpp, c]
	fail-fast: false
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	ref: ${{ inputs.ref }}

	- name: Install clang-format
	run: \|
	sudo apt-get install --yes --quiet --no-install-recommends clang-format

	- name: Validating Current versus Expected Test Case Formatting
	env:
	LANGUAGE: ${{ matrix.language }}
	# IMPORTANT: This step current relies on the fact that a file extension is the same as the language name for simplicity.
	run: \|
	if ! test -f .clang-format; then
	echo "Cannot find .clang-format in '$PWD'. Exiting..."
	fi

	find $LANGUAGE//test -name \.$LANGUAGE -print0 \| xargs -0 --max-procs "$XARGS_MAX_PROCS" clang-format --style=file -i --verbose
	git diff
	git diff --compact-summary
	git diff --quiet

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