Auto-update npm libraries #739

	name: Auto-update npm libraries

	# Be carefuly for which modules you activate auto-updates.
	# Braking changes MUST be caught in the CI or they will cause errors.
	# Updating test libraries like eslint should be safe however.

	# Perform updates at 3am every day
	on:
	schedule:
	- cron: "0 3 * * *"

	jobs:
	update-npm-libs:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: prepare git
	run: \|
	git config --global user.email '[email protected]'
	git config --global user.name 'Update Bot'

	- name: use node.js
	uses: actions/setup-node@v1
	with:
	node-version: 16.x

	- name: update engage-ui test libraries
	working-directory: modules/engage-ui
	run: \|
	npm update --save --dev eslint eslint-plugin-header
	npm audit fix \|\| true
	git add package.json package-lock.json

	- name: update all engage-theodul-* libraries (they only have tests)
	working-directory: modules/
	run: \|
	set -ue
	for module in $(ls -1 engage-theodul-*/package.json \| sed 's_/package.json__')
	do
	cd "${module}"
	rm package-lock.json
	npm update --dev
	npm audit fix
	git add package.json package-lock.json
	cd -
	done

	- name: make sure tests still work
	working-directory: modules/engage-theodul-core
	run: \|
	set -ue
	for module in $(ls -1 engage-theodul-*/package.json \| sed 's_/package.json__')
	do
	cd "${module}"
	npm run eslint
	cd -
	done

	#NB: The \|\| true after the commit ensures that the pipeline doesn't fail
	# (and send emails) if there are no updates available
	- name: push changes
	run: \|
	git commit -m 'Auto-update npm packages' \|\| true
	git push

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