name: NGINX Build System (Alpine-based)

on:
  pull_request:
  push:

jobs:
  build-module:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: jirutka/setup-alpine@v1
        with:
          branch: v3.19
          packages: >
            cmake
            g++
            re2-dev
            c-ares-dev
            grpc-dev
            git
            protoc
            make
            protobuf-dev
            perl-io-socket-ssl
            perl-cryptx
            openssl
            pcre2-dev
      - name: Clone dependencies
        run: |
          git clone https://github.com/nginx/nginx
          git clone https://github.com/nginx/nginx-tests
          git clone https://github.com/open-telemetry/opentelemetry-cpp
          git clone https://github.com/open-telemetry/opentelemetry-proto
        shell: alpine.sh {0}
      - name: Build dependencies
        working-directory: opentelemetry-cpp
        run: |
          cmake \
          -DCMAKE_CXX_EXTENSIONS=OFF \
          -DCMAKE_CXX_VISIBILITY_PRESET=hidden \
          -DCMAKE_POLICY_DEFAULT_CMP0063=NEW \
          -DCMAKE_PREFIX_PATH=$GITHUB_WORKSPACE/prebuilt/ \
          -DCMAKE_INSTALL_PREFIX:STRING=$GITHUB_WORKSPACE/prebuilt/ \
          -DCMAKE_INSTALL_LIBDIR:STRING=lib \
          -DCMAKE_POSITION_INDEPENDENT_CODE=ON \
          -DBUILD_TESTING=OFF \
          -DWITH_ABSEIL=ON \
          -DWITH_BENCHMARK=OFF \
          -DWITH_EXAMPLES=OFF \
          -DCMAKE_BUILD_TYPE=RelWithDebInfo \
          . && make -j $(nproc) install
        shell: alpine.sh {0}
      - name: Build module
        working-directory: nginx
        run: |
          NGX_OTEL_PROTO_DIR=$GITHUB_WORKSPACE/opentelemetry-proto/ \
          CMAKE_PREFIX_PATH=$GITHUB_WORKSPACE/prebuilt \
          ./auto/configure --add-dynamic-module=$GITHUB_WORKSPACE/ \
          --with-compat \
          && make -j $(nproc) modules
        shell: alpine.sh {0}
      - name: Build nginx
        working-directory: nginx
        run: |
          make -j $(nproc)
        shell: alpine.sh {0}
      - name: Download otelcol
        run: |
          curl -LO https://github.com/\
          open-telemetry/opentelemetry-collector-releases/releases/download/\
          v0.76.1/otelcol_0.76.1_linux_amd64.tar.gz
          tar -xzf otelcol_0.76.1_linux_amd64.tar.gz
        shell: alpine.sh {0}
      - name: Run tests
        working-directory: nginx-tests
        run: |
          PERL5LIB=$GITHUB_WORKSPACE/nginx-tests/lib TEST_NGINX_UNSAFE=1 \
          TEST_NGINX_VERBOSE=1 TEST_NGINX_GLOBALS="load_module \
            ${GITHUB_WORKSPACE}/nginx/objs/ngx_otel_module.so;" prove -v .
        shell: alpine.sh {0}