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

.github/workflows/cmake.yaml

@@ -1,4 +1,4 @@
-name: CMake
+name: Build and test (cmake based build)
 
 on:
   push:
@@ -15,24 +15,42 @@ 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 build
+      shell: bash      
     - name: Build
       # Build your program with the given configuration
-      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}}
+      run: cmake --build build --config ${{env.BUILD_TYPE}}
+      shell: bash      
 
     - name: Test
       working-directory: ${{github.workspace}}/build
       # 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}}
-