name: Update flake inputs
 
on:
  schedule:
    - cron: '0 4 * * *'  # Daily at 4am UTC
  workflow_dispatch:       # Allow manual trigger from GitHub Actions tab
 
jobs:
  update:
    runs-on: fred-nix
    permissions:
      contents: write
 
    steps:
      - name: Checkout repo
        uses: actions/checkout@v6

      - name: Install Nix
        uses: cachix/install-nix-action@v31
        with:
          nix_path: nixpkgs=channel:nixos-unstable
          extra_nix_config: |
            experimental-features = nix-command flakes
 
      - name: Update flake inputs
        run: nix flake update
 
      - name: Commit updated flake.lock
        uses: stefanzweifel/git-auto-commit-action@v7
        with:
          commit_message: "flake: update inputs"
          file_pattern: flake.lock