test.yml

name: Test and Deploy

# Controls when the workflow will run
on:
  # Triggers the workflow on push or pull request events but only for the main branch
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

  # Allows you to run this workflow manually from the Actions tab
  workflow_dispatch:

env:
  ENV: "qa"
  PROJECT_NAME: myproject
  SSH_HOST: ${{ secrets.SSH_HOST }}
  SSH_USER: ${{ secrets.SSH_USER }}
  SSH_KEY: ${{ secrets.SSH_PRIVATE_KEY }}
  NIXPKGS: "https://github.com/NixOS/nixpkgs/archive/51bcdc4cdaac48535dabf0ad4642a66774c609ed.tar.gz"

jobs:
  tests:
    name: Test
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v3
    - uses: DeterminateSystems/nix-installer-action@main
      with:
        determinate: true
        extra-conf: "lazy-trees = true"

    # Use the cachix cache for faster builds.
    - name: Cachix Init
      uses: cachix/cachix-action@v15
      with:
        name: digitallyinduced
        skipPush: true

    # # Initialize custom cachix for pushing
    # - name: Custom Cachix Init
    #   uses: cachix/cachix-action@v15
    #   with:
    #     name: CHANGE-ME
    #     authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
    #     skipPush: true

    # Free up disk space before building
    - name: Free disk space
      run: |
        # @see https://github.com/actions/runner-images/issues/2840#issuecomment-1284059930
        # IHP - NixOS requires a lots of disk space.
        sudo rm -rf /usr/share/dotnet
        sudo rm -rf "$AGENT_TOOLSDIRECTORY"
        sudo rm -rf /opt/hostedtoolcache
        sudo docker system prune -af

    # Pre-build shell environment to speed up direnv
    - name: Pre-build shell environment
      run: |
        nix develop --impure --accept-flake-config --profile dev-profile -c true

    # Install direnv, which also `direnv allow`s the project.
    - uses: HatsuneMiku3939/direnv-action@v1.1.0
      with:
        direnvVersion: 2.32.3

    - name: Run project and tests
      run: |
          # Build generated files.
          make build/Generated/Types.hs

          # Start the project in the background.
          devenv up &

          # Wait for the IHP server to start.
          timeout=60
          while [ $timeout -gt 0 ]; do
            if curl -s http://localhost:8000 >/dev/null 2>&1; then
              echo "IHP server is ready!"
              break
            fi
            sleep 1
            timeout=$((timeout - 1))
          done
          if [ $timeout -eq 0 ]; then
            echo "Timeout waiting for IHP server to start"
            exit 1
          fi

          # Execute the tests.
          runghc $(make print-ghc-extensions) -i. -ibuild -iConfig Test/Main.hs

    # Push to cachix after successful tests
    # - name: Push to Cachix
    #   if: github.ref == 'refs/heads/main'
    #   run: |
    #     nix build --no-link --json .#nixosConfigurations.qa.config.system.build.toplevel | jq -r '.[].outputs.out' | cachix push CHANGE-ME

  deploy:
    name: Deploy
    needs: tests
    if: github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v3

    - name: Setup SSH
      run: |
        mkdir -p ~/.ssh
        echo "${{ env.SSH_KEY }}" > ~/.ssh/id_rsa
        chmod 600 ~/.ssh/id_rsa
        ssh-keyscan -H ${{ env.SSH_HOST }} >> ~/.ssh/known_hosts
        echo -e "Host ${{ env.PROJECT_NAME}}-${{ env.ENV }}\n  HostName ${{ env.SSH_HOST }}\n  User ${{ env.SSH_USER }}\n  IdentityFile ~/.ssh/id_rsa" > ~/.ssh/config
        chmod 600 ~/.ssh/config

    - uses: cachix/install-nix-action@v20
      with:
        nix_path: nixpkgs=${{ env.NIXPKGS}}

    - name: Cachix Init
      uses: cachix/cachix-action@v12
      with:
        name: digitallyinduced
        skipPush: true

    - uses: HatsuneMiku3939/direnv-action@v1
      with:
        direnvVersion: 2.32.3

    - name: Deploy
      run: |
          deploy-to-nixos ${{ env.PROJECT_NAME}}-${{ env.ENV }}