fix: provide fallback url on empty mirror parse #330

	name: Update docker-images
	'on':
	push:
	branches:
	- master
	- main
	schedule:
	# every monday at night
	- cron: '0 1 * * 1'
	workflow_dispatch:
	jobs:
	build:
	strategy:
	matrix:
	profile: [tx-default] # , tx-small, tx-full]
	fail-fast: false
	name: Build container using the ${{ matrix.profile }}-base-image
	runs-on: ubuntu-latest
	steps:
	- name: Set up Git repository
	uses: actions/checkout@v4
	with:
	lfs: false
	submodules: false

	- name: Build the image
	run: \|
	docker build -t lithie-${{ matrix.profile }} -f Dockerfile-Update --build-arg target_profile=${{ matrix.profile }} .

	- name: Test that the image installed correctly
	run: \|
	docker run --rm lithie-${{ matrix.profile }} pdflatex --version
	docker run --rm lithie-${{ matrix.profile }} latexmk --version
	docker run --rm lithie-${{ matrix.profile }} sltx version

	- name: Deploy the image
	run: \|
	TAG="eagleoutice/lithie-${{ matrix.profile }}"
	VERSION="$(date "+%Y%m%d")"
	docker tag lithie-${{ matrix.profile }} ${TAG}:$VERSION
	docker tag lithie-${{ matrix.profile }} ${TAG}:latest
	docker images $TAG
	echo ${{ secrets.DH_PASSWD }} \| docker login -u ${{ secrets.DH_NAME }} --password-stdin
	docker push $TAG

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