name: CI

on:
  pull_request:

jobs:
  nixpkgs-fmt:
    runs-on: ubuntu-latest
    steps:
    - uses: cachix/install-nix-action@v14
      with:
        nix_path: nixpkgs=channel:nixos-unstable
        extra_nix_config: experimental-features = nix-command
    - uses: actions/checkout@v2.4.0
    - name: Check format
      run: ./check-fmt

  matrix_generate:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - uses: actions/checkout@v2.4.0
      - uses: cachix/install-nix-action@v14
        with:
          nix_path: nixpkgs=channel:nixos-unstable
          extra_nix_config: experimental-features = nix-command
      - id: set-matrix
        run: ./.github/generate-matrix.py

  builds:
    needs: matrix_generate
    runs-on: ubuntu-latest
    strategy:
      matrix: ${{fromJSON(needs.matrix_generate.outputs.matrix)}}
    steps:
      - uses: actions/checkout@v2.4.0
      - uses: cachix/install-nix-action@v14
        with:
          nix_path: nixpkgs=channel:nixos-unstable
          extra_nix_config: experimental-features = nix-command
      - uses: cachix/cachix-action@v10
        with:
          name: poetry2nix
          signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'
      - run: nix-shell -p nix-build-uncached --run 'nix-build-uncached --keep-going --show-trace tests/default.nix -A ${{ matrix.attr }}'