name: Build and Cache with Nix

on:
  workflow_dispatch:
  push:
    branches: [ "main" ]
    paths: [ 'src/**.rs', 'build.rs',  'Cargo.toml', 'Cargo.lock', 'nix/package.nix', 'flake.nix', 'flake.lock' ]

permissions:
  contents: read

jobs:
  populate-cache:
    runs-on: ubuntu-latest
    steps:
      - name: "Checkout"
        uses: actions/checkout@v5

      - uses: cachix/install-nix-action@v31
        with:
          nix_path: nixpkgs=channel:nixos-unstable

      - uses: cachix/cachix-action@v16
        with:
          name: nyx
          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'

      - name: "Build with Nix"
        run: nix build