update.yml

name: update-flake-lock
on:
  workflow_dispatch: # allows manual triggering
  schedule:
    - cron: "0 4 */7 * *" # runs 04:00 every 7 days

jobs:
  lockfile:
    name: Update the flake inputs
    runs-on: ubuntu-latest
    timeout-minutes: 40
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}

      - name: Install Nix
        uses: cachix/install-nix-action@v20
        with:
          nix_path: nixpkgs=channel:nixos-unstable
          github_access_token: ${{ secrets.GITHUB_TOKEN }}

      - name: Update flake.lock
        id: update
        uses: DeterminateSystems/update-flake-lock@v20
        with:
          pr-title: "Update flake.lock"
          pr-labels: | # Labels to be set on the PR
            dependencies
            automated
          token: ${{ secrets.GH_TOKEN_FOR_UPDATES }}
      - uses: peter-evans/enable-pull-request-automerge@v3
        with:
          pull-request-number: ${{ github.event.pull_request.number }}
          merge-method: squash