update flake.lock #12

	name: update flake.lock
	permissions:
	contents: write
	pull-requests: write

	on:
	schedule:
	# Run every 1st of the month at 12:00
	- cron: '* 12 1 * *'
	# Allow manual triggering of action
	workflow_dispatch:

	jobs:
	update-flake-lock:
	name: update flake.lock
	runs-on: ubuntu-latest
	env:
	CI_COMMIT_AUTHOR: Continuous Integration
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
	CI_PR_BRANCH: flake-lock-update
	steps:
	# Install Nix on the runner
	- name: Install Nix
	uses: cachix/install-nix-action@v20
	with:
	nix_path: nixpkgs=channel:nixos-unstable
	# Checkout of the current master in the working dir
	- name: Check out repository
	uses: actions/checkout@v3
	with:
	ref: master
	# Update the flake and commit result from master
	- name: Update flake
	run: \|
	nix --experimental-features 'nix-command flakes' flake update
	git config --global user.name "${{ env.CI_COMMIT_AUTHOR }}"
	git config --global user.email "[email protected]"
	git checkout -b ${{ env.CI_PR_BRANCH }}
	git commit -m "update flake.lock" flake.lock
	# Push, create new branch, and create PR
	# Note: note that action fails if branch already exists and push fails
	- name: Open Pull request
	run: \|
	git push origin ${{ env.CI_PR_BRANCH }}:${{ env.CI_PR_BRANCH }}
	gh pr create -B master -H ${{ env.CI_PR_BRANCH }} --title 'Update flake.lock' --body 'Created by Github action'

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