name: flake-update
on:
  workflow_dispatch: # allows manual triggering
  schedule:
    - cron: '0 1 * * *' # runs daily at 01:00

jobs:
  lockfile:
    runs-on: ubuntu-latest
    steps:
      - name: checkout
        uses: actions/checkout@v3.5.3
      - name: install
        uses: DeterminateSystems/nix-installer-action@v4
      - name: update
        uses: DeterminateSystems/update-flake-lock@v19
        with:
          pr-title: "Update flake.lock" # Title of PR to be created
          pr-labels: |                  # Labels to be set on the PR
            dependencies
            automated
      - name: merge PR
        run: |
          gh pr merge ${{ steps.update.outputs.pull-request-number }} --squash --delete-branch
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}