test

Update license plugin and headers (#203) #41

	# yamllint --format github .github/workflows/test.yml
	---
	name: test

	# We don't test documentation-only commits.
	on:
	# We run tests on non-tagged pushes to master that aren't a commit made by the release plugin
	push:
	tags: ''
	branches: master
	paths-ignore: '*/.md'
	# We also run tests on pull requests targeted at the master branch.
	pull_request:
	branches: master
	paths-ignore: '*/.md'

	jobs:
	test:
	runs-on: ubuntu-20.04 # newest available distribution, aka focal
	if: "!contains(github.event.head_commit.message, 'maven-release-plugin')"
	steps:
	- name: Checkout Repository
	uses: actions/checkout@v2
	with:
	fetch-depth: 0 # full git history for license check
	- name: Cache local Maven repository
	uses: actions/cache@v2
	with:
	path: ~/.m2/repository
	key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
	restore-keys: ${{ runner.os }}-maven-
	# We can't cache Docker without using buildx because GH actions restricts /var/lib/docker
	# That's ok because DOCKER_PARENT_IMAGE is always ghcr.io and local anyway.
	- name: Test
	run: build-bin/configure_test && build-bin/test

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