Break the repo down into 4 main nodes #105

	name: CI

	on:
	pull_request:
	types: [opened, synchronize, reopened]

	jobs:
	Test:
	runs-on: ${{ matrix.os }}-latest
	defaults:
	run:
	shell: bash -l {0}
	strategy:
	fail-fast: false
	max-parallel: 5
	matrix:
	os: ["ubuntu"]
	continue-on-error: false
	steps:
	- uses: actions/checkout@v3
	- uses: conda-incubator/setup-miniconda@v2
	with:
	miniforge-version: latest
	environment-file: environment.yml
	activate-environment: helx
	auto-activate-base: false
	- name: Setup helx
	run: \|
	pip install . -v
	- name: Check code quality
	run: \|
	pip install pylint
	MESSAGE=$(pylint -ry $(git ls-files '*.py') \|\|:)
	echo "$MESSAGE"
	- name: Run unit tests with pytest
	run: \|
	python -c 'import helx'

	Compliance:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	- name: PEP8 Compliance
	run: \|
	pip install pylint
	PR_BRANCH=${{ github.event.pull_request.target.ref }}
	MAIN_BRANCH=origin/${{ github.event.pull_request.base.ref }}
	CURRENT_DIFF=$(git diff --name-only --diff-filter=d $MAIN_BRANCH $PR_BRANCH \| grep -E '\.py$' \| tr '\n' ' ')
	if [[ $CURRENT_DIFF == "" ]];
	then MESSAGE="Diff is empty and there is nothing to pylint."
	else
	MESSAGE=$(pylint -ry --disable=E0401 $CURRENT_DIFF \|\|:)
	fi
	echo 'MESSAGE<<EOF' >> $GITHUB_ENV
	echo "<pre><code>$MESSAGE</code></pre>" >> $GITHUB_ENV
	echo 'EOF' >> $GITHUB_ENV
	echo "Printing PR message: $MESSAGE"
	- uses: mshick/add-pr-comment@v2
	with:
	issue: ${{ github.event.pull_request.number }}
	message: ${{ env.MESSAGE }}
	repo-token: ${{ secrets.GITHUB_TOKEN }}

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