cmake-multi-platform.yml

name: Build and Test (Linux/macOS/Windows)

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

  workflow_dispatch:

jobs:
  multi-platform-build:
    runs-on: ${{matrix.config.os}}
    strategy:
      matrix:
        config:
        - os: ubuntu-latest
          vcpkg_triplet: x64-linux-release
        - os: macos-latest
          vcpkg_triplet: arm64-osx-release
        - os: windows-latest
          vcpkg_triplet: x64-windows-release

    steps:
      - uses: actions/checkout@v4

      - name: Set up GitHub Cache (Windows)
        uses: actions/github-script@v7
        with:
          script: |
            core.exportVariable('ACTIONS_CACHE_URL', process.env.ACTIONS_CACHE_URL || '');
            core.exportVariable('ACTIONS_RUNTIME_TOKEN', process.env.ACTIONS_RUNTIME_TOKEN || '');
        if: matrix.config.os == 'windows-latest'

      - name: Install Catch2 via vcpkg (Windows)
        run: vcpkg install catch2 --binarysource="clear;x-gha,readwrite"
        if: matrix.config.os == 'windows-latest'

      - name: Install gnuplot (Linux)
        run: |
          sudo apt-get update && \
          sudo apt-get upgrade -y && \
          sudo apt-get install -y gnuplot
        if: matrix.config.os == 'ubuntu-latest'

      - name: Install gnuplot (Windows)
        run: |
          choco install gnuplot
        if: matrix.config.os == 'windows-latest'

      - name: Install gnuplot (macOS)
        run: |
          brew install gnuplot
        if: matrix.config.os == 'macos-latest'

      - name: vcpkg build (Linux/macOS)
        uses: johnwason/vcpkg-action@v6
        id: vcpkg
        with:
          pkgs: catch2
          triplet: ${{ matrix.config.vcpkg_triplet }}
          cache-key: ${{ matrix.config.os }}
          revision: master
          token: ${{ github.token }}
          github-binarycache: true
        if: matrix.config.os == 'ubuntu-latest' || matrix.config.os == 'macos-latest'

      - name: Configure with CMake (Linux/macOS)
        run: |
          cmake ${{ steps.vcpkg.outputs.vcpkg-cmake-config }} -S ${{ github.workspace }} -B build
        if: matrix.config.os == 'ubuntu-latest' || matrix.config.os == 'macos-latest'

      - name: Configure with CMake (Windows)
        run: |
          cmake -S ${{github.workspace}} -B build -DCMAKE_TOOLCHAIN_FILE="$Env:VCPKG_INSTALLATION_ROOT/scripts/buildsystems/vcpkg.cmake"
        if: matrix.config.os == 'windows-latest'

      - name: Build
        run: cmake --build build

      - name: Test (Linux and macOS)
        working-directory: ${{github.workspace}}/build
        run: ctest --output-on-failure
        if: matrix.config.os == 'ubuntu-latest' || matrix.config.os == 'macos-latest'

      - name: Test (Windows)
        working-directory: ${{github.workspace}}/build
        run: ctest --output-on-failure
        env:
          G3P_GNUPLOT_PATH: "C:/Program Files/gnuplot/bin/gnuplot.exe"
        if: matrix.config.os == 'windows-latest'