Use github actions cache for singularity containers #82

	name: build

	on:
	push:
	branches:
	- main
	- develop
	pull_request:
	branches:
	- main
	- develop

	jobs:
	build:
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: "3.9"
	cache: "pip"
	- name: Install nextflow
	uses: nf-core/setup-nextflow@v1
	- uses: eWaterCycle/setup-singularity@v7
	with:
	singularity-version: "3.8.3"
	- name: Install champagne
	run: \|
	python -m pip install --upgrade pip setuptools
	pip install .[dev,test]
	- uses: actions/cache/restore@v3
	id: cache-containers-restore
	with:
	path: .singularity
	key: ${{ runner.os }}-containers

	- name: Test stub run
	run: \|
	champagne run -profile ci_stub,github -stub

	- name: "Upload Artifact"
	uses: actions/upload-artifact@v3
	with:
	name: nextflow-log
	path: .nextflow.log

	- uses: actions/cache/save@v3
	id: cache-containers-save
	with:
	path: .singularity
	key: ${{ steps.cache-cache-containers-restore.outputs.cache-primary-key }}

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