name: CI

on:
  push:
    branches: [main]
  pull_request:
  workflow_dispatch:

jobs:
  build:
    name: Build outputs (${{ matrix.system }})

    strategy:
      matrix:
        include:
          - system: x86_64-linux
            os: ubuntu-latest

    runs-on: ${{ matrix.os }}

    env:
      SYSTEM: ${{ matrix.system }}

    steps:
        # https://github.com/actions/runner-images/issues/2840#issuecomment-790492173
      - name: Clear disk space
        run: |
          sudo rm -rf /usr/share/dotnet
          sudo rm -rf /opt/ghc
          sudo rm -rf "/usr/local/share/boost"
          sudo rm -rf "$AGENT_TOOLSDIRECTORY"

      - name: Checkout repository
        uses: actions/checkout@v4

      - name: Install Nix
        uses: DeterminateSystems/nix-installer-action@v16
        with:
          diagnostic-endpoint: ""

      - name: Setup Cachix
        uses: cachix/cachix-action@v15
        with:
          name: getchoo
          authToken: ${{ secrets.CACHIX_AUTH_TOKEN }}

      - name: Run build
        run: |
          nix run --inputs-from . \
            github:Mic92/nix-fast-build -- \
            --no-nom \
            --skip-cached \
            --option allow-import-from-derivation false \
            --flake ".#hydraJobs.$SYSTEM"

  build-gate:
    name: Build gate

    if: ${{ always() }}
    needs: build

    runs-on: ubuntu-latest

    steps:
      - name: Exit with error
        if: contains(needs.*.result, 'failure') || contains(needs.*.result, 'cancelled')
        run: exit 1