Add GitHub Actions workflow for Doxygen documentation

Author: lucamazzza

.github/workflows/doxygen_publish.yml

@@ -0,0 +1,41 @@
+name: Doxygen
+
+on:
+  push: 
+    branches: [ main ]
+    tags: 
+      - "v*"
+  pull_request: 
+    branches: [ main ]
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+
+    - name: Install epstopdf
+      run:  sudo apt-get update && sudo apt-get install -y texlive-extra-utils
+
+    - name: Update Doxygen version from Tag
+      if: startsWith(github.ref, 'refs/tags/v')
+      run: |
+        VERSION=${GITHUB_REF#refs/tags/}
+        echo "Updating Doxyfile version to $VERSION"
+        sed -i "s/^PROJECT_NUMBER[[:space:]]*=.*/PROJECT_NUMBER = $VERSION/" ./appcomm/Doxyfile
+
+    - name: Doxygen Build
+      uses: mattnotmitt/doxygen-action@v1.1.0
+      with:
+        doxyfile-path: "Doxyfile"
+        working-directory: "./appcomm"
+
+    - name: Publish
+      if: startsWith(github.ref, 'refs/tags/v')
+      uses: peaceiris/actions-gh-pages@v3
+      with:
+        github_token: ${{ secrets. GITHUB_TOKEN }}
+        publish_dir: ./docs/html