ci.yml

name: CI

on: [ push, workflow_dispatch ]
jobs:
  check_nix_packages:
    name: Check Nix Flake
    runs-on: ubuntu-24.04
    steps:
    - name: Get Repository from Git
      uses: actions/checkout@v4
    - name: Install Nix
      uses: DeterminateSystems/nix-installer-action@main
    - name: Set up Nix Cache
      uses: DeterminateSystems/magic-nix-cache-action@main
    - name: Check Nixpkgs Inputs
      uses: DeterminateSystems/flake-checker-action@main

  lint:
    name: Run Rustfmt and Clippy on Rust
    runs-on: ubuntu-24.04
    steps:
    - name: Get Repository from Git
      uses: actions/checkout@v4
    - name: Install Nix
      uses: DeterminateSystems/nix-installer-action@main
    - name: Set up Nix Cache
      uses: DeterminateSystems/magic-nix-cache-action@main
    # For some reason, GitHub provides Rust for us. The problem is that, when
    # executing the recursive cargo invocation, the cargo in ~/.cargo/bin ends
    # up prepended to PATH, which then causes problems.
    - name: Remove Rust provided by GitHub.
      run: rm -rf ~/.cargo ~/.rustup
    - name: Lint
      run: ./scripts/lint.sh

  run_all_tests_on_maelstrom:
    name: Run All Maelstrom Tests on Maelstrom
    runs-on: ubuntu-24.04
    steps:
    - name: Get Repository from Git
      uses: actions/checkout@v4
    - name: Install Nix
      uses: DeterminateSystems/nix-installer-action@main
    - name: Set up Nix Cache
      uses: DeterminateSystems/magic-nix-cache-action@main
    # For some reason, GitHub provides Rust for us. The problem is that, when
    # executing the recursive cargo invocation, the cargo in ~/.cargo/bin ends
    # up prepended to PATH, which then causes problems.
    - name: Remove Rust provided by GitHub.
      run: rm -rf ~/.cargo/bin ~/.rustup
    - name: Disable apparmor container restrictions
      run: sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
    - name: Install Nix Flake
      run: nix develop --command echo done
    - name: Get Rust version
      run: echo "RUST_VERSION=$(nix develop --command rustc --version | cut -d' ' -f2)" >> $GITHUB_ENV
    - name: Set up Rust Cache
      uses: actions/cache@v4
      with:
        path: |
          ~/.cargo/registry/index/
          ~/.cargo/registry/cache/
          ~/.cargo/git/db/
          target/
        key: maelstrom-${{ hashFiles('Cargo.lock', 'flake.lock') }}-${{ env.RUST_VERSION }}
    - name: Expose GitHub Action Runtime
      uses: crazy-max/ghaction-github-runtime@v3
    - name: Test
      run: ./scripts/run-tests-on-maelstrom.sh "${{ env.ACTIONS_RUNTIME_TOKEN }}" "${{ env.ACTIONS_RESULTS_URL }}"

  run_worker:
    strategy:
      matrix:
        worker_number: [1, 2, 3, 4]
    name: Run Worker
    runs-on: ubuntu-24.04
    steps:
    - name: Get Repository from Git
      uses: actions/checkout@v4
    - name: Install Nix
      uses: DeterminateSystems/nix-installer-action@main
    - name: Set up Nix Cache
      uses: DeterminateSystems/magic-nix-cache-action@main
    # For some reason, GitHub provides Rust for us. The problem is that, when
    # executing the recursive cargo invocation, the cargo in ~/.cargo/bin ends
    # up prepended to PATH, which then causes problems.
    - name: Remove Rust provided by GitHub.
      run: rm -rf ~/.cargo/bin ~/.rustup
    - name: Disable apparmor container restrictions
      run: sudo sysctl -w kernel.apparmor_restrict_unprivileged_userns=0
    - name: Install Nix Flake
      run: nix develop --command echo done
    - name: Get Rust version
      run: echo "RUST_VERSION=$(nix develop --command rustc --version | cut -d' ' -f2)" >> $GITHUB_ENV
    - name: Set up Rust Cache
      uses: actions/cache@v4
      with:
        path: |
          ~/.cargo/registry/index/
          ~/.cargo/registry/cache/
          ~/.cargo/git/db/
          target/
        key: maelstrom-${{ hashFiles('Cargo.lock', 'flake.lock') }}-${{ env.RUST_VERSION }}
    - name: Expose GitHub Action Runtime
      uses: crazy-max/ghaction-github-runtime@v3
    - name: Run Worker
      run: ./scripts/run-worker.sh "${{ env.ACTIONS_RUNTIME_TOKEN }}" "${{ env.ACTIONS_RESULTS_URL }}"

  github_api_tests:
    strategy:
      matrix:
        test_actor: [1, 2, 3]
    name: Run GitHub API Tests
    runs-on: ubuntu-24.04
    steps:
    - name: Get Repository from Git
      uses: actions/checkout@v4
    - name: Install Nix
      uses: DeterminateSystems/nix-installer-action@main
    - name: Set up Nix Cache
      uses: DeterminateSystems/magic-nix-cache-action@main
    # For some reason, GitHub provides Rust for us. The problem is that, when
    # executing the recursive cargo invocation, the cargo in ~/.cargo/bin ends
    # up prepended to PATH, which then causes problems.
    - name: Remove Rust provided by GitHub.
      run: rm -rf ~/.cargo/bin ~/.rustup
    - name: Expose GitHub Action Runtime
      uses: crazy-max/ghaction-github-runtime@v3
    - name: Test
      run: nix develop --command cargo test --package maelstrom-github real_github_integration_test -- --nocapture
      env:
        TEST_ACTOR: ${{ matrix.test_actor }}

  deploy-documentation:
    name: Build and Deploy Documentation
    runs-on: ubuntu-24.04
    permissions:
      contents: write  # To push a branch
      pages: write  # To push to a GitHub Pages site
      id-token: write # To update the deployment status
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0
      - name: Install Latest mdBook
        run: |
          tag=$(curl 'https://api.github.com/repos/rust-lang/mdbook/releases/latest' | jq -r '.tag_name')
          url="https://github.com/rust-lang/mdbook/releases/download/${tag}/mdbook-${tag}-x86_64-unknown-linux-gnu.tar.gz"
          mkdir mdbook
          curl -sSL $url | tar -xz --directory=./mdbook
          echo `pwd`/mdbook >> $GITHUB_PATH
      - name: Build Documentation
        run: |
          mkdir -p website/static/doc/book
          cd doc/book
          ./build-all-versions.sh ../../website/static/doc/book
      - name: Install Zola
        uses: taiki-e/install-action@v2
        with:
          tool: zola@0.19.1
      - name: Build Website with Zola
        run: |
          cd website
          zola build
      - name: Set up Pages
        uses: actions/configure-pages@v4
      - name: Upload Artifact
        uses: actions/upload-pages-artifact@v3
        with:
          path: 'website/public'
      - name: Deploy to GitHub Pages
        id: deployment
        uses: actions/deploy-pages@v4