test.yaml

name: Test

# Put 'on' in quotes to avoid YAML parsing error
"on":
  # Enable manual triggering
  workflow_dispatch: {}
  # Run on commits to main branch
  push:
    branches:
      - main
    # Run only on changes to relevant files
    paths:
      - .github/workflows/test.yaml
      - src/**
      - tests/**
      - copier.yaml
      - flake.lock
      - "*.nix"
      - Taskfile.dist.yaml
  # Run also on pull requests to main branch
  pull_request:
    branches:
      - main
    # Run only on changes to relevant files
    paths:
      - .github/workflows/test.yaml
      - src/**
      - tests/**
      - copier.yaml
      - flake.lock
      - "*.nix"
      - Taskfile.dist.yaml

jobs:
  test:
    name: Test
    # Pin version of Ubuntu to avoid breaking changes
    runs-on: ubuntu-22.04
    # Use reasonable timeout to avoid stuck workflows
    timeout-minutes: 30
    env:
      NIX_CACHE_DIR: /home/runner/.nixcache/
      TRUNK_CACHE_DIR: /home/runner/.trunkcache/
    permissions:
      # Needed to checkout code
      contents: read
    steps:
      - name: Checkout code
        uses: actions/checkout@v4.1.1
      - name: Setup Nix cache
        uses: actions/cache@v4.0.1
        id: cache-nix
        with:
          path: ${{ env.NIX_CACHE_DIR }}
          key: test-nix
      - name: Setup Trunk cache
        uses: actions/cache@v4.0.1
        with:
          path: ${{ env.TRUNK_CACHE_DIR }}
          key: test-trunk
      - name: Install Nix
        uses: cachix/install-nix-action@v26
        with:
          github_access_token: ${{ github.token }}
          install_url: https://releases.nixos.org/nix/nix-2.20.5/install
      # See: https://github.com/cachix/install-nix-action/issues/56
      - name: Import Nix store cache
        if: steps.cache-nix.outputs.cache-hit == 'true'
        run: >
          nix-store
          --import
          < ${{ env.NIX_CACHE_DIR }}/archive.nar
      - name: Run tests
        env:
          TRUNK_CACHE: ${{ env.TRUNK_CACHE_DIR }}
        run: >
          nix
          develop
          ./#test
          --command
          --
          task
          test
      # See: https://github.com/cachix/install-nix-action/issues/56
      - name: Export Nix store cache
        if: "!cancelled()"
        run: >
          mkdir
          --parents
          ${{ env.NIX_CACHE_DIR }}
          &&
          nix-store
          --export $(find /nix/store/ -maxdepth 1 -name '*-*')
          > ${{ env.NIX_CACHE_DIR }}/archive.nar