updated github actions to cross-platfrom build and added action for github pages

.github/workflows/cmake.yaml

@@ -15,17 +15,35 @@ jobs:
     # The CMake configure and build commands are platform agnostic and should work equally well on Windows or Mac.
     # You can convert this to a matrix build if you need cross-platform coverage.
     # See: https://docs.github.com/en/free-pro-team@latest/actions/learn-github-actions/managing-complex-workflows#using-a-build-matrix
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
 
     steps:
     - uses: actions/checkout@v3
     - name: Prepare dependencies
-      run: sudo apt-get update && sudo apt-get install -yq libboost-system-dev libboost-date-time-dev cmake graphviz doxygen
+      run:   |
+         if [ "$RUNNER_OS" == "Linux" ]; then
+              sudo apt-get update && \
+              sudo apt-get install -yq \
+                libboost-system-dev \
+                libboost-date-time-dev \
+                cmake \
+                graphviz doxygen
+         elif [ "$RUNNER_OS" == "Windows" ]; then
+              choco install boost-msvc-14.3 graphviz doxygen.install
+         elif [ "$RUNNER_OS" == "macOS" ]; then
+              brew install boost graphviz doxygen
+         else
+              echo "$RUNNER_OS not supported"
+              exit 1
+         fi
+      shell: bash      
     - name: Configure CMake
-      # Configure CMake in a 'build' subdirectory. `CMAKE_BUILD_TYPE` is only required if you are using a single-configuration generator such as make.
-      # See https://cmake.org/cmake/help/latest/variable/CMAKE_BUILD_TYPE.html?highlight=cmake_build_type
-      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}}
-
+      run: cmake -B ${{github.workspace}}/build \
+                 -D CMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} 
     - name: Build
       # Build your program with the given configuration
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
@@ -35,4 +53,3 @@ jobs:
       # Execute tests defined by the CMake configuration.
       # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
       run: ctest -C ${{env.BUILD_TYPE}}
-

.github/workflows/doxygen-gh-pages.yml

@@ -0,0 +1,29 @@
+name: Doxygen Github Pages Deploy action
+
+on:
+  push:
+    branches:
+      - main
+
+permissions:
+  contents: write
+jobs:
+  build-and-deploy:
+    concurrency: ci-${{ github.ref }} # Recommended if you intend to make multiple deployments in quick succession.
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v3
+      - name: Prepare dependencies
+        run: sudo apt-get update && sudo apt-get install -yq libboost-system-dev libboost-date-time-dev cmake graphviz doxygen
+      - name: configure
+        run: cmake -B build -S . -DEXPATPP_BUILD_DOCS=ON
+      - name: clean generated docs dir
+        run: rm -rf build/html
+      - name: build
+        run: cmake --build build --target doc
+
+      - name: Deploy 🚀
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          folder: build/html # The folder the action should deploy.