update #56

	name: update
	on:
	workflow_dispatch:
	schedule:
	- cron: '0 0 * * *'
	jobs:
	update:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	- name: resolve GL version
	id: version
	run: \|
	gl_start=2020-03-31
	currentdate="$(date -u '+%Y-%m-%d')"
	datediff=$(( "$(date -u -d "$currentdate" '+%s')" - "$(date -u -d "$gl_start" '+%s')" ))
	days_since_start=$(( datediff / 86400 ))
	echo "version=$days_since_start.0" >> "$GITHUB_OUTPUT"
	- name: resolve container digest
	run: \|
	set -o noclobber
	image="ghcr.io/gardenlinux/repo-debian-snapshot"
	podman pull "$image"
	digest="$(podman image inspect --format '{{ .Digest }}' "$image")"
	echo "$image@$digest" > .container
	- name: fetch package repo releases
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	podman build -t build --build-arg base="$(cat .container)" .
	podman run --rm -e GH_TOKEN build /fetch_releases > package-releases
	- name: commit
	run: \|
	git checkout --detach HEAD
	git add .
	git config user.email "[email protected]"
	git config user.name "GitHub Actions"
	git commit -m "https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}"
	git tag '${{ steps.version.outputs.version }}'
	git push origin '${{ steps.version.outputs.version }}'
	- name: dispatch build
	env:
	GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	run: \|
	gh workflow run --ref '${{ steps.version.outputs.version }}' -F today=true build.yml

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