update #69

	name: update

	permissions:
	contents: read

	on:
	workflow_dispatch:
	schedule:
	- cron: '30 0 * * *' # every day at 12:30 AM

	jobs:
	update:
	runs-on: ubuntu-latest

	strategy:
	fail-fast: false
	matrix:
	config:
	- {file: check-staging.yaml}

	steps:
	- uses: actions/checkout@v5
	with:
	token: ${{ secrets.WORKFLOWS_TOKEN }}

	- name: Download snapshot.json.
	run: \|
	curl -H "Authorization: token ${{ secrets.GITHUB_TOKEN }}" \
	-H "Accept: application/vnd.github.v3.raw" \
	-o snapshot.json \
	"https://api.github.com/repos/r-multiverse/staging/contents/snapshot.json"

	- name: Read values in snapshot.json.
	run: \|
	echo "CRAN_URL=$(jq -r '.[0].cran' snapshot.json)" >> $GITHUB_ENV
	echo "R_VERSION=$(jq -r '.[0].r' snapshot.json)" >> $GITHUB_ENV

	- name: Replace wildcards with values in workflow scripts.
	run: \|
	sed "s\|CRAN_URL\|${{ env.CRAN_URL }}\|g" templates/${{ matrix.config.file }} \| \
	sed "s\|R_VERSION\|${{ env.R_VERSION }}\|g" > .github/workflows/${{ matrix.config.file }}

	- name: Commit and push changes.
	env:
	GITHUB_TOKEN: ${{ secrets.WORKFLOWS_TOKEN }}
	run: \|
	git config --global user.name github-actions
	git config --global user.email [email protected]
	git add .github/workflows/${{ matrix.config.file }}
	if git diff --quiet && git diff --staged --quiet; then
	echo "No changes to commit."
	else
	git commit -m "Update ${{ matrix.config.file }}"
	git push -u origin main
	fi

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