name: build

on: [push, pull_request]

jobs:
  build:
    strategy:
      matrix:
        os: [ubuntu-22.04, macos-11]
        compiler: [gcc, clang]
        buildtool: [autotools, cmake]
        http3: [http3, no-http3]
        openssl: [openssl1, openssl3, boringssl]
        exclude:
        - os: macos-11
          openssl: openssl3
        - http3: no-http3
          openssl: openssl3
        - os: macos-11
          compiler: gcc
        - # disable macos cmake because of include path issue
          os: macos-11
          buildtool: cmake
        - os: macos-11
          openssl: boringssl
        - openssl: boringssl
          buildtool: cmake
        - openssl: boringssl
          compiler: gcc

    runs-on: ${{ matrix.os }}

    steps:
    - uses: actions/checkout@v3
    - name: Linux setup
      if: runner.os == 'Linux'
      run: |
        sudo apt-get install \
          g++-11 \
          clang-12 \
          autoconf \
          automake \
          autotools-dev \
          libtool \
          pkg-config \
          zlib1g-dev \
          libcunit1-dev \
          libssl-dev \
          libxml2-dev \
          libev-dev \
          libevent-dev \
          libjansson-dev \
          libjemalloc-dev \
          libc-ares-dev \
          libelf-dev \
          cmake \
          cmake-data
        echo 'CPPFLAGS=-fsanitize=address,undefined -fno-sanitize-recover=undefined -g' >> $GITHUB_ENV
        echo 'LDFLAGS=-fsanitize=address,undefined -fno-sanitize-recover=undefined' >> $GITHUB_ENV
    - name: MacOS setup
      if: runner.os == 'macOS'
      run: |
        brew install \
          libev \
          libevent \
          c-ares \
          cunit \
          libressl \
          autoconf \
          automake \
          pkg-config \
          libtool
        echo 'PKG_CONFIG_PATH=/usr/local/opt/libressl/lib/pkgconfig:/usr/local/opt/libxml2/lib/pkgconfig' >> $GITHUB_ENV
    - name: Setup clang (Linux)
      if: runner.os == 'Linux' && matrix.compiler == 'clang'
      run: |
        echo 'CC=clang-12' >> $GITHUB_ENV
        echo 'CXX=clang++-12' >> $GITHUB_ENV
    - name: Setup clang (MacOS)
      if: runner.os == 'macOS' && matrix.compiler == 'clang'
      run: |
        echo 'CC=clang' >> $GITHUB_ENV
        echo 'CXX=clang++' >> $GITHUB_ENV
    - name: Setup gcc (Linux)
      if: runner.os == 'Linux' && matrix.compiler == 'gcc'
      run: |
        echo 'CC=gcc-11' >> $GITHUB_ENV
        echo 'CXX=g++-11' >> $GITHUB_ENV
    - name: Setup gcc (MacOS)
      if: runner.os == 'macOS' && matrix.compiler == 'gcc'
      run: |
        echo 'CC=gcc' >> $GITHUB_ENV
        echo 'CXX=g++' >> $GITHUB_ENV
    - name: Build libbpf
      if: matrix.http3 == 'http3' && matrix.compiler == 'clang' && runner.os == 'Linux'
      run: |
        git clone -b v1.0.0 https://github.com/libbpf/libbpf
        cd libbpf
        PREFIX=$PWD/build make -C src install

        EXTRA_AUTOTOOLS_OPTS="--with-libbpf"
        EXTRA_CMAKE_OPTS="-DWITH_LIBBPF=1"

        echo 'EXTRA_AUTOTOOLS_OPTS='"$EXTRA_AUTOTOOLS_OPTS" >> $GITHUB_ENV
        echo 'EXTRA_CMAKE_OPTS='"$EXTRA_CMAKE_OPTS" >> $GITHUB_ENV
    - name: Build quictls/openssl v1.1.1
      if: matrix.http3 == 'http3' && matrix.openssl == 'openssl1'
      run: |
        git clone --depth 1 -b OpenSSL_1_1_1q+quic https://github.com/quictls/openssl
        cd openssl
        ./config --prefix=$PWD/build
        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
        make install_sw
    - name: Build quictls/openssl v3.0.x
      if: matrix.http3 == 'http3' && matrix.openssl == 'openssl3'
      run: |
        unset CPPFLAGS
        unset LDFLAGS

        git clone --depth 1 -b openssl-3.0.5+quic https://github.com/quictls/openssl
        cd openssl
        ./config enable-ktls --prefix=$PWD/build --libdir=$PWD/build/lib
        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
        make install_sw
    - name: Build BoringSSL
      if: matrix.openssl == 'boringssl'
      run: |
        git clone https://boringssl.googlesource.com/boringssl
        cd boringssl
        git checkout a6d321b11fa80496b7c8ae6405468c212d4f5c87
        mkdir build
        cd build
        cmake -DCMAKE_POSITION_INDEPENDENT_CODE=ON ..
        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
        cd ..

        OPENSSL_CFLAGS="-I$PWD/include/"
        OPENSSL_LIBS="-L$PWD/build/ssl -lssl -L$PWD/build/crypto -lcrypto -pthread"
        EXTRA_NGTCP2_OPTS="$EXTRA_NGTCP2_OPTS --without-openssl --with-boringssl"
        EXTRA_AUTOTOOLS_OPTS="$EXTRA_AUTOTOOLS_OPTS --without-neverbleed --without-jemalloc"

        echo 'OPENSSL_CFLAGS='"$OPENSSL_CFLAGS" >> $GITHUB_ENV
        echo 'OPENSSL_LIBS='"$OPENSSL_LIBS" >> $GITHUB_ENV
        echo 'BORINGSSL_CFLAGS='"$OPENSSL_CFLAGS" >> $GITHUB_ENV
        echo 'BORINGSSL_LIBS='"$OPENSSL_LIBS" >> $GITHUB_ENV
        echo 'EXTRA_NGTCP2_OPTS='"$EXTRA_NGTCP2_OPTS" >> "$GITHUB_ENV"
        echo 'EXTRA_AUTOTOOLS_OPTS='"$EXTRA_AUTOTOOLS_OPTS" >> $GITHUB_ENV
    - name: Build nghttp3
      if: matrix.http3 == 'http3'
      run: |
        git clone --depth 1 -b v0.7.0 https://github.com/ngtcp2/nghttp3
        cd nghttp3
        autoreconf -i
        ./configure --prefix=$PWD/build --enable-lib-only
        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)" check
        make install
    - name: Build ngtcp2
      if: matrix.http3 == 'http3'
      run: |
        git clone --depth 1 -b v0.8.1 https://github.com/ngtcp2/ngtcp2
        cd ngtcp2
        autoreconf -i
        ./configure --prefix=$PWD/build --enable-lib-only PKG_CONFIG_PATH="../openssl/build/lib/pkgconfig" $EXTRA_NGTCP2_OPTS
        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)" check
        make install
    - name: Setup extra environment variables for HTTP/3
      if: matrix.http3 == 'http3'
      run: |
        PKG_CONFIG_PATH="$PWD/openssl/build/lib/pkgconfig:$PWD/nghttp3/build/lib/pkgconfig:$PWD/ngtcp2/build/lib/pkgconfig:$PWD/libbpf/build/lib64/pkgconfig:$PKG_CONFIG_PATH"
        LDFLAGS="$LDFLAGS -Wl,-rpath,$PWD/openssl/build/lib -Wl,-rpath,$PWD/libbpf/build/lib64"
        EXTRA_AUTOTOOLS_OPTS="--enable-http3 $EXTRA_AUTOTOOLS_OPTS"
        EXTRA_CMAKE_OPTS="-DENABLE_HTTP3=1 $EXTRA_CMAKE_OPTS"

        echo 'PKG_CONFIG_PATH='"$PKG_CONFIG_PATH" >> $GITHUB_ENV
        echo 'LDFLAGS='"$LDFLAGS" >> $GITHUB_ENV
        echo 'EXTRA_AUTOTOOLS_OPTS='"$EXTRA_AUTOTOOLS_OPTS" >> $GITHUB_ENV
        echo 'EXTRA_CMAKE_OPTS='"$EXTRA_CMAKE_OPTS" >> $GITHUB_ENV
    - name: Setup git submodules
      run: |
        git submodule update --init
    - name: Configure autotools
      run: |
        autoreconf -i
        ./configure
    - name: Configure cmake (Linux)
      if: matrix.buildtool == 'cmake' && runner.os == 'Linux'
      run: |
        make dist
        VERSION=$(grep PACKAGE_VERSION config.h | cut -d' ' -f3 | tr -d '"')
        tar xf nghttp2-$VERSION.tar.gz
        cd nghttp2-$VERSION
        echo 'NGHTTP2_CMAKE_DIR='"$PWD" >> $GITHUB_ENV

        cmake -DENABLE_WERROR=1 -DWITH_MRUBY=1 -DWITH_NEVERBLEED=1 -DENABLE_APP=1 $EXTRA_CMAKE_OPTS -DCPPFLAGS="$CPPFLAGS" -DLDFLAGS="$LDFLAGS" .
    - name: Configure cmake (MacOS)
      if: matrix.buildtool == 'cmake' && runner.os == 'macOS'
      run: |
        make dist
        VERSION=$(grep PACKAGE_VERSION config.h | cut -d' ' -f3 | tr -d '"')
        tar xf nghttp2-$VERSION.tar.gz
        cd nghttp2-$VERSION
        echo 'NGHTTP2_CMAKE_DIR='"$PWD" >> $GITHUB_ENV

        # This fixes infamous 'stdio.h not found' error.
        echo 'SDKROOT='"$(xcrun --sdk macosx --show-sdk-path)" >> $GITHUB_ENV

        cmake -DENABLE_WERROR=1 -DWITH_MRUBY=1 -DENABLE_APP=1 $EXTRA_CMAKE_OPTS -DCPPFLAGS="$CPPFLAGS" -DLDFLAGS="$LDFLAGS" .
    - name: Build nghttp2 with autotools (Linux)
      if: matrix.buildtool == 'autotools' && runner.os == 'Linux'
      run: |
        make -j"$(nproc)" distcheck \
          DISTCHECK_CONFIGURE_FLAGS="--with-mruby --with-neverbleed --with-libev --enable-werror $EXTRA_AUTOTOOLS_OPTS CPPFLAGS=\"$CPPFLAGS\" LDFLAGS=\"$LDFLAGS\""
    - name: Build nghttp2 with autotools (MacOS)
      if: matrix.buildtool == 'autotools' && runner.os == 'macOS'
      run: |
        make -j"$(sysctl -n hw.ncpu)" distcheck \
          DISTCHECK_CONFIGURE_FLAGS="--with-mruby --with-libev --enable-werror $EXTRA_AUTOTOOLS_OPTS CPPFLAGS=\"$CPPFLAGS\" LDFLAGS=\"$LDFLAGS\""
    - name: Build nghttp2 with cmake
      if: matrix.buildtool == 'cmake'
      run: |
        cd $NGHTTP2_CMAKE_DIR
        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)"
        make -j"$(nproc 2> /dev/null || sysctl -n hw.ncpu)" check
    - name: Integration test
      # Integration tests for nghttpx; autotools erases build
      # artifacts.
      if: matrix.buildtool == 'cmake'
      run: |
        cd $NGHTTP2_CMAKE_DIR/integration-tests
        make itprep it

  build-cross:
    strategy:
      matrix:
        host: [x86_64-w64-mingw32, i686-w64-mingw32]

    runs-on: ubuntu-22.04

    env:
      HOST: ${{ matrix.host }}

    steps:
    - uses: actions/checkout@v3
    - name: Linux setup
      run: |
        sudo dpkg --add-architecture i386
        sudo apt-get update
        sudo apt-get install \
          gcc-mingw-w64 \
          autoconf \
          automake \
          autotools-dev \
          libtool \
          pkg-config \
          wine
    - name: Build CUnit
      run: |
        curl -LO https://jaist.dl.sourceforge.net/project/cunit/CUnit/2.1-3/CUnit-2.1-3.tar.bz2
        tar xf CUnit-2.1-3.tar.bz2
        cd CUnit-2.1-3
        ./bootstrap
        ./configure --disable-shared --host="$HOST" --prefix="$PWD/build"
        make -j$(nproc) install
    - name: Configure autotools
      run: |
        autoreconf -i && \
        ./configure --enable-werror --enable-lib-only --with-cunit \
          --host="$HOST" PKG_CONFIG_PATH="$PWD/CUnit-2.1-3/build/lib/pkgconfig"
    - name: Build nghttp2
      run: |
        make -j$(nproc)
        make -j$(nproc) check TESTS=""
    - name: Run tests
      if: matrix.host == 'x86_64-w64-mingw32'
      run: |
        cd tests
        wine main.exe

  build-windows:
    runs-on: windows-latest

    steps:
    - uses: actions/checkout@v3
    - name: Configure cmake
      run: |
        mkdir build
        cd build
        cmake ..
    - name: Build nghttp2
      run: |
        cmake --build build