enh: warn user when source and target directory are identical (close … #141

	name: Checks

	on:
	push:
	pull_request:

	jobs:
	build:

	runs-on: ${{ matrix.os }}
	strategy:
	matrix:
	python-version: ['3.10']
	os: [macos-latest, ubuntu-latest, windows-latest]
	timeout-minutes: 30
	env:
	# Display must be available globally for linux to know where xvfb is
	DISPLAY: ":99.0"
	QT_SELECT: "qt6"

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v4
	with:
	python-version: ${{ matrix.python-version }}
	- name: Setup xvfb (Linux)
	if: runner.os == 'Linux'
	run: \|
	# Stuff copied wildly from several stackoverflow posts
	sudo apt-get install -y xvfb libxkbcommon-x11-0 libxcb-icccm4 libxcb-image0 libxcb-keysyms1 libxcb-randr0 libxcb-render-util0 libxcb-xinerama0 libxcb-xinput0 libxcb-xfixes0 libxcb-shape0 libglib2.0-0 libgl1-mesa-dev
	sudo apt-get install '^libxcb.*-dev' libx11-xcb-dev libglu1-mesa-dev libxrender-dev libxi-dev libxkbcommon-dev libxkbcommon-x11-dev
	# start xvfb in the background
	sudo /usr/bin/Xvfb $DISPLAY -screen 0 1280x1024x24 &
	- name: Install Python dependencies
	run: \|
	# prerequisites
	python -m pip install --upgrade pip wheel
	python -m pip install coverage flake8 pytest pytest-qt
	- name: Install package
	run: \|
	pip install .
	- name: List installed packages
	run: \|
	pip freeze
	- name: Test with pytest
	run: \|
	coverage run --source=mpl_data_cast -m pytest -x tests
	- name: Lint with flake8
	run: \|
	flake8 --exclude _version.py .
	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v3

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