ci.yml

name: C++ CI

on:
  push:
    branches: [main]
  pull_request:
  workflow_dispatch:

permissions: read-all

jobs:
  build:
    runs-on: ubuntu-latest
    env:
      ABSEIL_VERSION: '20260526.0'
      ABSEIL_SHA256: 6e1aee535473414164bf83e4ebc40240dec71a4701f8a642d906e95bea1aea0c

    steps:
      - uses: actions/checkout@v4

      - name: Install C++ dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y \
            cmake \
            g++ \
            libarmadillo-dev \
            liblapack-dev \
            libopenblas-dev

      - name: Build Abseil dependency
        run: |
          archive="$RUNNER_TEMP/abseil-cpp-${ABSEIL_VERSION}.tar.gz"
          curl -fsSL \
            "https://github.com/abseil/abseil-cpp/releases/download/${ABSEIL_VERSION}/abseil-cpp-${ABSEIL_VERSION}.tar.gz" \
            -o "$archive"
          echo "${ABSEIL_SHA256}  ${archive}" | sha256sum -c -
          tar -xzf "$archive" -C "$RUNNER_TEMP"
          cmake \
            -S "$RUNNER_TEMP/abseil-cpp-${ABSEIL_VERSION}" \
            -B "$RUNNER_TEMP/abseil-build" \
            -DABSL_BUILD_TESTING=OFF \
            -DABSL_ENABLE_INSTALL=ON \
            -DCMAKE_BUILD_TYPE=Release \
            -DCMAKE_INSTALL_PREFIX="$RUNNER_TEMP/abseil"
          cmake --build "$RUNNER_TEMP/abseil-build" --target install --parallel 2

      - name: Configure CMake build
        run: >-
          cmake -S . -B build
          -DCMAKE_PREFIX_PATH="$RUNNER_TEMP/abseil"
          -DFASTCPD_BUILD_EXAMPLES=ON

      - name: Build and run CMake example
        run: |
          cmake --build build --target fastcpd_cpp_example --parallel 2
          ./build/fastcpd_cpp_example

      - name: Validate CMake installation
        run: cmake --install build --prefix "$RUNNER_TEMP/fastcpd-install"

      - name: Build and run Make example
        run: |
          make -C examples/cpp clean all ABSL_INCLUDE="$RUNNER_TEMP/abseil/include"
          ./examples/cpp/simple