Check Sphinx external links #1538

	name: Check Sphinx external links
	on:
	pull_request:
	schedule:
	- cron: '0 5 * * *' # once per day at midnight ET
	workflow_dispatch:

	jobs:
	check-external-links:
	runs-on: ubuntu-latest
	steps:
	- name: Cancel non-latest runs
	uses: styfle/[email protected]
	with:
	all_but_latest: true
	access_token: ${{ github.token }}

	- uses: actions/checkout@v4
	with:
	submodules: 'recursive'

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.12'

	- name: Install Sphinx dependencies and package
	run: \|
	python -m pip install --upgrade pip
	python -m pip install -r requirements-doc.txt -r requirements.txt -r requirements-opt.txt
	python -m pip install .
	- name: Check Sphinx external links
	run: sphinx-build -b linkcheck ./docs/source ./test_build

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