README.md updated. #9

	name: preliminary-ci-test-with-mambaforge

	on:
	push:
	branches: [ dev ]

	env:
	CACHE_NUMBER: 1 # increase to reset cache manually

	jobs:
	build-linux:
	strategy:
	matrix:
	include:
	- os: ubuntu-latest
	label: linux-64
	prefix: /usr/share/miniconda3/envs/my-env
	python-version: 3.9

	- os: ubuntu-latest
	label: linux-64b
	prefix: /usr/share/miniconda3/envs/my-env
	python-version: '3.10'

	name: ${{ matrix.label }}
	runs-on: ${{ matrix.os }}
	steps:
	- uses: actions/checkout@v2
	- name: Setup Mambaforge
	uses: conda-incubator/setup-miniconda@v2
	with:
	miniforge-variant: Mambaforge
	miniforge-version: latest
	activate-environment: my-env
	use-mamba: true
	python-version: ${{ matrix.python-version }}

	- name: Set cache date
	run: echo "DATE=$(date +'%Y%m%d')" >> $GITHUB_ENV

	- uses: actions/cache@v2
	with:
	path: ${{ matrix.prefix }}
	key: ${{ matrix.label }}-conda-${{ hashFiles('environment.yaml') }}-${{ env.DATE }}-${{ env.CACHE_NUMBER }}
	id: cache

	- name: Update environment
	run: mamba env update -n my-env -f environment.yaml
	if: steps.cache.outputs.cache-hit != 'true'

	- name: Install Other Dependencies with PIP
	run: \|
	python -m pip install --upgrade pip
	pip install flake8
	- name: Lint with flake8
	run: \|
	# stop the build if there are Python syntax errors or undefined names
	flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
	# exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
	flake8 . --count --exit-zero --max-complexity=10 --max-line-length=127 --statistics

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