name: "Nix: update lockfile"

on:
  schedule:
    - cron: '0 0 */14 * *'
  workflow_dispatch:

jobs:
  update:
    runs-on: ubuntu-latest
    steps:
    - name: Clone repository
      uses: actions/checkout@v3
    - name: Install nix
      uses: cachix/install-nix-action@v17
      with:
        install_url: https://releases.nixos.org/nix/nix-2.8.0/install
        extra_nix_config: |
          auto-optimise-store = true
          experimental-features = nix-command flakes
    - name: Update lockfile
      run: nix flake update
    - uses: stefanzweifel/git-auto-commit-action@v4
      with:
        commit_message: "[gha] bump flake inputs"