update_deps #355

	name: update_deps

	on:
	workflow_dispatch: #allow manual triggering
	schedule:
	- cron: "0 4 * * *"
	jobs:
	update_deps:
	runs-on: ubuntu-latest
	steps:
	- name: checkout
	uses: actions/[email protected]
	- name: install nix
	uses: DeterminateSystems/nix-installer-action@v12
	- name: setup git
	run: \|
	git config user.email [email protected]
	git config user.name "GitHub Actions"
	git checkout -b updates-${{ github.run_id }}
	- name: update
	run: \|
	MESSAGE=""

	nix flake update --no-warn-dirty --commit-lock-file

	if git rev-parse -q HEAD^; then

	MESSAGE="$(git -P log --pretty=format:"%s%n%b" -1)"

	git reset --soft HEAD^
	fi

	if NPINS=$(nix run nixpkgs#npins -- update -f \| grep -E '[^$no changes$]url.'); then
	MESSAGE="$MESSAGE

	npins url updates:
	$NPINS"
	fi

	if [ -z "$MESSAGE" ]; then
	exit 0
	fi

	git add -A

	git commit -m "CI update $(date -I)" -m "$MESSAGE"

	git push -u origin updates-${{ github.run_id }}

	PR=$(gh pr create \
	--base master \
	--body "$MESSAGE" \
	--fill \
	--title "Auto update $(date -I)")

	gh pr merge $PR --squash --delete-branch
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

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