name: Update flake inputs

on:
  schedule:
    - cron: '0 4 * * 1'  # every Monday at 4am
  workflow_dispatch:      # allow manual trigger

jobs:
  update:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: DeterminateSystems/nix-installer-action@main
      - name: Update flake inputs
        run: nix flake update

      - name: Create Pull Request
        uses: peter-evans/create-pull-request@v6
        with:
          commit-message: "flake: update inputs"
          title: "flake: update inputs"
          branch: flake-update
          delete-branch: true