name: Build

on: [push, pull_request]

jobs:
  build:
    runs-on: ${{ matrix.os }}
    name: build (Linux, GCC ${{ matrix.gcc }}, ${{ matrix.plugins }} plugins)
    strategy:
      fail-fast: false
      matrix:
        os:
        - ubuntu-22.04
        gcc:
        - 10
        plugins:
        - default
        include:
        - os: ubuntu-22.04
          gcc: 12
          plugins: all
    steps:
    - name: Set up Python 3
      uses: actions/setup-python@v4
      with:
        python-version: 3
    - name: Install dependencies
      run: |
        sudo apt-get update
        sudo apt-get install \
            ccache \
            libsdl2-dev \
            libxml-libxml-perl \
            libxml-libxslt-perl \
            ninja-build \
            zlib1g-dev
        pip install 'sphinx<4.4.0'
    - name: Install GCC
      run: |
        sudo apt-get install gcc-${{ matrix.gcc }} g++-${{ matrix.gcc }}
    - name: Clone DFHack
      uses: actions/checkout@v3
      with:
        fetch-depth: 0  # unlimited - we need past tags
        submodules: true
    - name: Set up environment
      id: env_setup
      run: |
        DF_VERSION="$(sh ci/get-df-version.sh)"
        echo "df_version=${DF_VERSION}" >> $GITHUB_OUTPUT
        echo "DF_VERSION=${DF_VERSION}" >> $GITHUB_ENV
        echo "DF_FOLDER=${HOME}/DF/${DF_VERSION}/df_linux" >> $GITHUB_ENV
        echo "CCACHE_DIR=${HOME}/.ccache" >> $GITHUB_ENV
        #    - name: Fetch DF cache
        #      uses: actions/cache@v3
        #      with:
        #        path: ~/DF
        #        key: dfcache-${{ steps.env_setup.outputs.df_version }}-${{ hashFiles('ci/download-df.sh') }}
    - name: Fetch ccache
      uses: actions/cache@v3
      with:
        path: ~/.ccache
        key: ccache-${{ matrix.os }}-gcc-${{ matrix.gcc }}-${{ github.ref_name }}-${{ github.sha }}
        restore-keys: |
          ccache-${{ matrix.os }}-gcc-${{ matrix.gcc }}-${{ github.ref_name }}
          ccache-${{ matrix.os }}-gcc-${{ matrix.gcc }}
          #    - name: Download DF
          #      run: |
          #        sh ci/download-df.sh
    - name: Configure DFHack
      env:
        CC: gcc-${{ matrix.gcc }}
        CXX: g++-${{ matrix.gcc }}
      run: |
        cmake \
          -S . \
          -B build-ci \
          -G Ninja \
          -DDFHACK_BUILD_ARCH=64 \
          -DBUILD_TESTS:BOOL=ON \
          -DBUILD_DEV_PLUGINS:BOOL=${{ matrix.plugins == 'all' }} \
          -DBUILD_SIZECHECK:BOOL=${{ matrix.plugins == 'all' }} \
          -DBUILD_SKELETON:BOOL=${{ matrix.plugins == 'all' }} \
          -DBUILD_SUPPORTED:BOOL=1 \
          -DCMAKE_C_COMPILER_LAUNCHER=ccache \
          -DCMAKE_CXX_COMPILER_LAUNCHER=ccache \
          -DCMAKE_INSTALL_PREFIX="$DF_FOLDER"
    - name: Build DFHack
      run: |
        ninja -C build-ci install
        ccache --max-size 50M
        ccache --cleanup
        ccache --show-stats
    - name: Run cpp unit tests
      id: run_tests_cpp
      run: |
        ninja -C build-ci test
        exit $?
        #    - name: Run lua tests
        #      id: run_tests_lua
        #      run: |
        #        export TERM=dumb
        #        status=0
        #        script -qe -c "python ci/run-tests.py --headless --keep-status \"$DF_FOLDER\"" || status=$((status + 1))
        #        python ci/check-rpc.py "$DF_FOLDER/dfhack-rpc.txt" || status=$((status + 2))
        #        mkdir -p artifacts
        #        cp "$DF_FOLDER"/test*.json "$DF_FOLDER"/*.log artifacts || status=$((status + 4))
        #        exit $status
        #    - name: Upload test artifacts
        #      uses: actions/upload-artifact@v1
        #      if: (success() || failure()) && steps.run_tests.outcome != 'skipped'
        #      continue-on-error: true
        #      with:
        #        name: test-artifacts-${{ matrix.gcc }}
        #        path: artifacts
    - name: Clean up DF folder
      # prevent DFHack-generated files from ending up in the cache
      # (download-df.sh also removes them, this is just to save cache space)
      if: success() || failure()
      run: |
        rm -rf "$DF_FOLDER"

  build-cross-win64:
    name: Build MSVC win64
    runs-on: ubuntu-22.04
    steps:
      - name: Install dependencies
        run: |
          sudo apt-get update
          sudo apt-get install ccache
      - name: Clone DFHack
        uses: actions/checkout@v3
        with:
          submodules: true
          fetch-depth: 0
      - name: Fetch ccache
        uses: actions/cache@v3
        with:
          path: build/win64-cross/ccache
          key: ccache-win64-cross-msvc-${{ github.ref_name }}-${{ github.sha }}
          restore-keys: |
            ccache-win64-cross-msvc-${{ github.ref_name }}
            ccache-win64-cross-msvc
      - name: Cross-compile win64 artifacts
        run: |
          cd build
          bash -x build-win64-from-linux.sh
          ccache -d win64-cross/ccache --max-size 200M
          ccache -d win64-cross/ccache --cleanup
          ccache -d win64-cross/ccache --show-stats
      - name: Format artifact name
        id: artifactname
        run: |
          echo name=$(date +%Y%m%d)-$(git rev-parse --short HEAD) >> $GITHUB_OUTPUT
      - name: Upload win64 artifacts
        uses: actions/upload-artifact@v3
        with:
          name: dfhack-win64-build-${{ steps.artifactname.outputs.name }}
          path: build/win64-cross/output/*

  docs:
    runs-on: ubuntu-22.04
    steps:
    - name: Set up Python 3
      uses: actions/setup-python@v4
      with:
        python-version: 3
    - name: Install dependencies
      run: |
        pip install 'sphinx'
    - name: Clone DFHack
      uses: actions/checkout@v3
      with:
        submodules: true
    - name: Build docs
      run: |
        sphinx-build -W --keep-going -j auto --color . docs/html

  lint:
    runs-on: ubuntu-22.04
    steps:
    - name: Set up Python 3
      uses: actions/setup-python@v4
      with:
        python-version: 3
    - name: Install Lua
      run: |
        sudo apt-get update
        sudo apt-get install lua5.3
    - name: Clone DFHack
      uses: actions/checkout@v3
      with:
        submodules: true
        # don't need tags here
    - name: Check whitespace
      run: |
        python ci/lint.py --git-only --github-actions
    - name: Check Authors.rst
      if: success() || failure()
      run: |
        python ci/authors-rst.py
    - name: Check for missing documentation
      if: success() || failure()
      run: |
        python ci/script-docs.py
    - name: Check Lua syntax
      if: success() || failure()
      run: |
        python ci/script-syntax.py --ext=lua --cmd="luac5.3 -p" --github-actions

  check-pr:
    runs-on: ubuntu-latest
    if: github.event_name == 'pull_request'
    steps:
    - name: Check that PR is based on develop branch
      env:
        BASE_BRANCH: ${{ github.base_ref }}
      run: |
        echo "PR base branch: $BASE_BRANCH"
        test "$BASE_BRANCH" = develop