Scheduled documentation link check #64

	name: Scheduled documentation link check
	on:
	schedule:
	- cron: '15 2 * * TUE' # every Tuesday night
	workflow_dispatch: # allow for manually trigging the workflow
	jobs:
	check-docs-links:
	name: Check for broken links in documentation
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v3
	- name: Set up Python
	uses: actions/setup-python@v4
	with:
	python-version: '3.x'
	cache: pip
	cache-dependency-path: "**/docs-requirements.txt"
	- name: Install docs dependencies
	run: \|
	python3 -m pip install --upgrade pip
	python3 -m pip install -r docs-requirements.txt
	- name: Build documentation
	run: \|
	make -C doc apidoc
	make -C doc relnotes
	make -C doc html
	- name: Run Sphinx linkcheck on documentation
	run: make -C doc linkcheck \|\| make -C doc linkcheck \|\| make -C doc linkcheck # simple "retry 3 times" - for flaky links

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