Some CI improvements #1

	name: "CMake Format"

	on:
	# always run on main branch
	push:
	branches: [ main ]
	paths-ignore:
	- 'README.md'
	- 'CONTRIBUTING.md'
	- 'LICENSE'
	# run on PR to main branch if relevant files changed
	pull_request:
	branches: [ main ]
	paths:
	- '**/CMakeLists.txt'
	- '.github/workflows/cmake-format.yml'

	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.ref }}
	cancel-in-progress: true

	jobs:
	format:
	name: "cmake-format"
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-python@v5
	with:
	python-version: '3.13'
	cache-dependency-path: '.github/workflows/cmake-format.yml'
	cache: 'pip'
	- name: Install CMake formatting tool
	run: pip install cmake-format

	# Check all cmake files; ignore files in hidden directories
	- name: Execute cmake-format
	run: find . $ -path '/.' -prune $ -o
	$ -type f -a -name 'CMakeLists.txt' $
	-exec echo "Format checking '{}'..." \;
	-exec cmake-format --check -- {} +

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