Add FFI example project and test on CI #1

	name: Examples

	on:
	push:
	branches:
	- main
	pull_request:
	branches:
	- main

	permissions:
	contents: read # to fetch code
	actions: write # to cancel previous workflows

	jobs:
	ffi:
	name: FFI examples
	runs-on: ubuntu-latest
	timeout-minutes: 5
	steps:
	- name: Cancel previous
	uses: styfle/cancel-workflow-action@85880fa0301c86cca9da44039ee3bb12d3bedbfa # ratchet: styfle/cancel-workflow-action@0.12.1
	with:
	access_token: ${{ github.token }}
	if: ${{github.ref != 'refs/heads/main'}}
	- uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # ratchet:actions/checkout@v4
	- name: Set up Python 3.11
	uses: actions/setup-python@39cd14951b08e74b54015e9e001cdefcf80e669f # ratchet:actions/setup-python@v5
	with:
	python-version: 3.11
	- name: Get pip cache dir
	id: pip-cache
	run: \|
	python -m pip install --upgrade pip wheel
	echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
	- name: pip cache
	uses: actions/cache@0c45773b623bea8c8e75f6c82b208c3cf94ea4f9 # ratchet: actions/cache@v4
	with:
	path: ${{ steps.pip-cache.outputs.dir }}
	key: ${{ runner.os }}-pip-ffi-examples-${{ hashFiles('/setup.py', 'examples//pyproject.toml') }}
	- name: Install JAX
	run: pip install .
	- name: Install dependencies
	run: python -m pip install ./examples/ffi[test]
	- name: Run tests
	run: python -m pytest examples/ffi/tests

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