CI #595

	# workflow to build and test OCCAM

	name: CI

	# Controls when the action will run.

	on:
	push:
	branches: master
	pull_request:
	branches: master
	schedule:
	- cron: 0 0 * * * # run every day at UTC 00:00

	# A workflow run is made up of one or more jobs that can run sequentially or in parallel
	jobs:
	# This workflow contains a single job called "test"
	test:
	# The type of runner that the job will run on
	runs-on: ubuntu-latest

	# Steps represent a sequence of tasks that will be executed as part of the job
	steps:
	# Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
	- name: Check out Repo
	uses: actions/checkout@v2
	with:
	ref: master # only checkout master
	- name: Build OCCAM and run tests
	run: docker build --build-arg UBUNTU=bionic --build-arg BUILD_TYPE=Release -t sricsl/occam:bionic -f docker/occam.Dockerfile .
	# Logging in using this mechanism prints the following warning
	# WARNING! Your password will be stored unencrypted in /home/runner/.docker/config.json.
	# There does not seem to be an easy way around it though using docker actions may mitigate
	# it.
	- name: Login to DockerHub Registry
	if: ${{ github.event_name == 'schedule' }} # only push if nightly run
	run: echo ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }} \| docker login -u ${{ secrets.DOCKER_HUB_USERNAME }} --password-stdin
	- name: Tag and push OCCAM (nightly) to DockerHub
	if: ${{ github.event_name == 'schedule' }} # only push if nightly run
	run: \|
	docker push sricsl/occam:bionic

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