name: Update Nix flakes and commit changes

on:
  schedule:
    - cron: "0 23 * * *"

jobs:
  update-and-commit:
    runs-on: native

    steps:
      - name: Checkout repository
        uses: actions/checkout@v2
        with:
          ref: "update"
          fetch-depth: 0

      - name: Setup Git
        run: |
          git config --local user.email "action@git.ingolf-wagner.de"
          git config --local user.name "Forgejo Action"

      - name: Rebase with main branch
        run: |
          git fetch origin main
          git rebase origin/main

      - name: Update Nix flakes
        run: nix flake update

      - name: Commit and Push changes
        run: |
          git diff --quiet && git diff --staged --quiet || (git commit -am "Update Nix flakes" && git push)