name: LNbits CI / nix

# - run   : on main, dev, nix and cachix branches when relevant files change
# - cache : on main, dev and cachix branches when relevant files change

on:
  push:
    branches:
      - main
      - dev
      - nix
      - cachix
    paths:
      - 'flake.nix'
      - 'flake.lock'
      - 'pyproject.toml'
      - 'poetry.lock'
      - '.github/workflows/nix.yml'
  pull_request:
    paths:
      - 'flake.nix'
      - 'flake.lock'
      - 'pyproject.toml'
      - 'poetry.lock'

jobs:
  nix:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: cachix/install-nix-action@v24
        with:
          nix_path: nixpkgs=channel:nixos-23.11
      - uses: cachix/cachix-action@v13
        if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/cachix'
        with:
          name: lnbits
          authToken: "${{ secrets.CACHIX_AUTH_TOKEN }}"
      - run: nix build -L
      - run: cachix push lnbits ./result
        if: github.ref == 'refs/heads/main' || github.ref == 'refs/heads/dev' || github.ref == 'refs/heads/cachix'