use ruff for linting and formatting, update CI #2567

	name: Continuous Integration

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

	jobs:
	pre-commit:
	name: ruff and hooks.
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: '3.9'
	- uses: pre-commit/action@v3.0.1
	with:
	extra_args: --all-files

	pyright:
	name: type checking
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- uses: actions/setup-python@v5
	with:
	python-version: '3.9'
	# NOTE: We pin the version of pyright to match pyproject.toml.
	- run: pip install pyright==1.1.305
	- run: pyright sbi

	test:
	name: tests
	runs-on: ubuntu-latest
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.9"]
	torch-version: ["1.11, 2.0"]

	steps:
	- uses: actions/checkout@v4
	with:
	lfs: true
	- uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}

	- name: Install dependencies
	run: \|
	python -m pip install --upgrade pip
	pip install torch==${{ matrix.torch-version }} --extra-index-url https://download.pytorch.org/whl/cpu
	pip install .

	- name: Test with pytest
	run: \|
	pip install torchtestcase
	pip install pytest pytest-cov
	pytest -m "not slow and not gpu" tests/ --cov=sbi --cov-report=xml

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v3
	with:
	file: ./coverage.xml
	flags: unittests
	env_vars: OS,PYTHON
	name: codecov-umbrella
	fail_ci_if_error: true

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