flake-build.yaml

name: "flake build"

on:
  push:
    branches: [ main ]
    tags: [ '*' ]
  pull_request:
  workflow_dispatch:

permissions:
  contents: read

jobs:
  build:
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        target: [ "unstable", "stable" ]

    steps:
      - uses: actions/checkout@v4

      - uses: cachix/install-nix-action@v30

      - uses: DeterminateSystems/magic-nix-cache-action@v8
        with:
          diagnostic-endpoint: false
          use-flakehub: false

      - name: build stable
        if: matrix.target == 'stable'
        run: |
          nix build -L \
            --override-input nixpkgs github:NixOS/nixpkgs/nixos-24.05

      - name: build unstable
        if: matrix.target != 'stable'
        run: |
          nix build -L