Check Sphinx external links #74

	name: Check Sphinx external links
	on:
	pull_request:
	types: [synchronize, opened, reopened]
	branches:
	- main
	schedule:
	- cron: '0 5 * * 0' # once every Sunday at midnight ET
	workflow_dispatch:

	jobs:
	check-external-links:
	name: Check for broken Sphinx external links
	runs-on: ubuntu-latest
	steps:
	- name: Cancel any previous incomplete runs
	uses: styfle/cancel-workflow-action@0.12.0
	with:
	all_but_latest: true
	access_token: ${{ github.token }}

	- uses: actions/checkout@v4
	with:
	submodules: 'recursive'
	fetch-depth: 0 # tags are required for versioneer to determine the version

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.11'

	- name: Install Sphinx dependencies and package
	run: \|
	python -m pip install --upgrade pip
	python -m pip install -r requirements-dev.txt
	python -m pip install .

	- name: Check Sphinx external links
	run: \|
	cd docs # run_doc_autogen assumes spec is found in ../spec/
	sphinx-build -b linkcheck ./source ./test_build

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