Switch from preallocating all databases to lazy allocation, reducing overhead and improving scalability for large database counts. #2730

	name: Clang Format Check

	on:
	push:
	pull_request:
	paths:
	- 'src/**'

	concurrency:
	group: clang-${{ github.head_ref \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	clang-format-check:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout code
	uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1

	- name: Set up Clang
	run: \|
	sudo apt-get update -y
	sudo apt-get upgrade -y
	sudo apt-get install software-properties-common -y
	wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key \| gpg --dearmor \| sudo tee /usr/share/keyrings/llvm-toolchain.gpg > /dev/null
	echo "deb [signed-by=/usr/share/keyrings/llvm-toolchain.gpg] http://apt.llvm.org/$(lsb_release -cs)/ llvm-toolchain-$(lsb_release -cs)-18 main" \| sudo tee /etc/apt/sources.list.d/llvm.list
	sudo apt-get update -y
	sudo apt-get install clang-format-18 -y
	- name: Run clang-format
	id: clang-format
	run: \|
	# Run clang-format and capture the diff
	cd src
	shopt -s globstar
	clang-format-18 -i */.c */.h
	# Capture the diff output
	DIFF=$(git diff)
	if [ ! -z "$DIFF" ]; then
	# Encode the diff in Base64 to ensure it's handled as a single line
	ENCODED_DIFF=$(echo "$DIFF" \| base64 -w 0)
	echo "diff=$ENCODED_DIFF" >> $GITHUB_OUTPUT
	fi
	shell: bash

	- name: Check for formatting changes
	if: ${{ steps.clang-format.outputs.diff }}
	run: \|
	echo "ERROR: Code is not formatted correctly. Here is the diff:"
	# Decode the Base64 diff to display it
	echo "${{ steps.clang-format.outputs.diff }}" \| base64 --decode
	exit 1
	shell: bash

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