Introduce ccache-setup action #1

	name: Test ccache-setup action

	on:
	push:
	branches: [actions/ccache-setup]

	jobs:
	test:
	strategy:
	fail-fast: false
	matrix:
	include:
	- os: ubuntu-latest
	compiler: g++-12
	- os: ubuntu-24.04-arm
	compiler: g++-12
	- os: macos-latest
	compiler: clang++
	- os: windows-latest
	compiler: cl
	runs-on: ${{ matrix.os }}
	name: Test on ${{ matrix.os }}

	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Run ccache-setup
	id: ccache
	uses: ./.github/actions/ccache-setup
	with:
	cmake-config-args: '-DCMAKE_CXX_COMPILER=${{ matrix.compiler }}'
	cmake-build-type: Release
	cache-key-prefix: test

	- name: Verify ccache installed
	shell: bash
	run: \|
	echo "=== ccache version ==="
	ccache --version

	- name: Verify environment
	shell: bash
	run: \|
	echo "=== CCACHE_DIR ==="
	echo "$CCACHE_DIR"

	echo "=== Cache key ==="
	echo "${{ steps.ccache.outputs.cache-key }}"

	echo "=== Cache hit ==="
	echo "${{ steps.ccache.outputs.cache-hit }}"

	- name: Verify ccache configuration
	shell: bash
	run: \|
	echo "=== ccache config ==="
	ccache -p \| grep -E '(cache_dir\|max_size\|compression)'

Provide feedback