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Sync legacy Sparkle feed #91

	name: Sync legacy Sparkle feed
	on:
	workflow_dispatch:
	schedule:
	- cron: '17,47 * * * *'
	permissions:
	contents: write
	pages: write
	id-token: write
	concurrency:
	group: legacy-feed
	cancel-in-progress: false
	jobs:
	sync:
	runs-on: ubuntu-latest
	environment:
	name: github-pages
	url: ${{ steps.deployment.outputs.page_url }}
	steps:
	- uses: actions/checkout@v4
	- name: Fetch and validate canonical appcast
	run: \|
	curl --fail --silent --show-error --location --retry 3 https://commit-plus.github.io/commit-plus/appcast.xml -o /tmp/appcast.xml
	python3 - <<'PYTHON'
	import xml.etree.ElementTree as ET
	root = ET.parse('/tmp/appcast.xml').getroot()
	items = root.findall('channel/item')
	assert items, 'Appcast has no releases'
	for item in items:
	enclosure = item.find('enclosure')
	assert enclosure is not None
	assert enclosure.attrib['url'].startswith('https://github.com/Commit-Plus/commit-plus/releases/download/')
	assert enclosure.attrib.get('{http://www.andymatuschak.org/xml-namespaces/sparkle}edSignature')
	PYTHON
	cp /tmp/appcast.xml appcast.xml
	- name: Save updated feed
	run: \|
	if ! git diff --quiet -- appcast.xml; then
	git config user.name 'github-actions[bot]'
	git config user.email '41898282+github-actions[bot]@users.noreply.github.com'
	git add appcast.xml
	git commit -m 'Update legacy Sparkle feed'
	git push
	fi
	- name: Prepare Pages
	run: \|
	mkdir _site
	cp appcast.xml .nojekyll _site/
	- uses: actions/configure-pages@v5
	- uses: actions/upload-pages-artifact@v3
	with:
	path: _site
	- uses: actions/deploy-pages@v4
	id: deployment