Introduce pre-commit hooks #167

	name: CI

	on:
	push:
	branches:
	- master
	tags:
	- '**'
	pull_request:

	env:
	NUMBA_NUM_THREADS: 1
	MPLBACKEND: Agg
	PYTEST_ADDOPTS: --color=yes

	jobs:
	lint:
	runs-on: ubuntu-latest
	name: Lint
	steps:
	- name: Check out source repository
	uses: actions/checkout@v3
	- name: Set up Python environment
	uses: actions/setup-python@v4
	with:
	python-version: "3.9"
	- name: Runs pre-commit hooks
	uses: pre-commit/action@v3.0.0
	with:
	extra_args: --files $(git diff origin/main --name-only)

	tests:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: ["3.8", "3.9", "3.10", "3.11"]
	ctapipe-version: [v0.19.1]

	defaults:
	run:
	# We need login shells (-l) for micromamba to work.
	shell: bash -leo pipefail {0}

	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0

	- name: Set Python version
	env:
	PYTHON_VERSION: ${{ matrix.python-version }}
	run: \|
	sed -i -e "s/- python=.*/- python=$PYTHON_VERSION/g" environment.yml

	- name: Create and activate env
	uses: mamba-org/provision-with-micromamba@v15
	with:
	environment-name: "ci"
	environment-file: environment.yml

	- name: Install dependencies
	env:
	PYTHON_VERSION: ${{ matrix.python-version }}
	CTAPIPE_VERSION: ${{ matrix.ctapipe-version }}

	run: \|
	python --version
	echo "Installing additional pip packages"
	# we install ctapipe using pip to be able to select any commit, e.g. the current master
	pip install \
	"git+https://github.com/cta-observatory/ctapipe@$CTAPIPE_VERSION" \
	pytest-cov

	echo "pip install -e ."
	pip install -e .

	- name: Tests
	run: \|
	pytest --cov=nectarchain --cov-report=xml

	- uses: codecov/codecov-action@v3

Provide feedback