Try to deploy appimage

.github/workflows/deploy.yml

@@ -17,6 +17,52 @@ env:
   QUCS_MACOS_RESOURCES: ./build/qucs/qucs-s.app/Contents/MacOS/re/qucs-s/
 
 jobs:
+  build-linux-appimage:
+    runs-on: ubuntu-20.04
+
+    steps:
+    - uses: actions/checkout@v3
+      with:
+          submodules: recursive
+
+    - name: InstallQt5
+      run: |
+          sudo apt-get update
+          sudo apt-get install -y qtbase5-dev qttools5-dev qtscript5-dev libqt5svg5-dev flex bison
+    - 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}} -DCMAKE_INSTALL_PREFIX=/usr
+
+    - name: Build
+      # Build your program with the given configuration
+      run: |
+          cmake --build ${{github.workspace}}/build -j`nproc` --config ${{env.BUILD_TYPE}}
+          make -C ${{github.workspace}}/build install DESTDIR=${{github.workspace}}/AppDir
+
+      
+    - name: Install linuxdeploy
+      run: |
+          wget https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+          wget https://github.com/linuxdeploy/linuxdeploy-plugin-qt/releases/download/continuous/linuxdeploy-plugin-qt-x86_64.AppImage
+          sudo apt-get install fuse libfuse2
+          chmod +x linuxdeploy-x86_64.AppImage
+          chmod +x linuxdeploy-plugin-qt-x86_64.AppImage
+    
+    - name: 'Create AppImage'
+      run: |
+             ./linuxdeploy-x86_64.AppImage --appdir ${{github.workspace}}/AppDir --desktop-file=${{github.workspace}}/AppDir/usr/share/applications/qucs-s.desktop --icon-file=${{github.workspace}}/AppDir/usr/share/icons/hicolor/256x256/apps/qucs-s.png --plugin=qt --output appimage
+             rm linuxdeploy-x86_64.AppImage
+             rm linuxdeploy-plugin-qt-x86_64.AppImage
+             mv *.AppImage Qucs-S-x86_64-Linux.AppImage
+
+    - name: 'Upload artifact: AppImage'
+      uses: actions/upload-artifact@v2
+      with:
+          name: Qucs-S-x86_64-Linux.AppImage
+          path: Qucs-S-x86_64-Linux.AppImage
+
+
   build-mac-intel:
     runs-on: macos-12
     strategy:
@@ -301,9 +347,10 @@ jobs:
         # Find existing zip and dmg files
         zip_files=$(find ~/artifacts -name "*.zip" -print0 | xargs -0 echo)
         dmg_files=$(find ~/artifacts -name "*.dmg" -print0 | xargs -0 echo)
+        appimage_files=$(find ~/artifacts -name "*.AppImage" -print0 | xargs -0 echo)
         
         # Create release only if there are files to upload
-        if [ -n "$zip_files" ] || [ -n "$dmg_files" ]; then
+        if [ -n "$zip_files" ] || [ -n "$dmg_files" ] || [ -n "$appimage_files" ]; then
           gh release create continuous_build \
             $zip_files \
             $dmg_files \