Add building of AppImages for Releases

.github/workflows/build-appimage.yml

@@ -0,0 +1,60 @@
+
+name: Build Gource AppImage
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y \
+            build-essential cmake libsdl2-dev libpcre3-dev libglew-dev \
+            libglm-dev libboost-filesystem-dev libfreetype6-dev libpng-dev \
+            libjpeg-dev libsdl2-image-dev libfuse-dev
+
+      - name: Build Gource
+        run: |
+          ./autogen.sh
+          ./configure
+          make
+
+      - name: Download linuxdeploy
+        run: |
+          wget https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
+          chmod +x linuxdeploy-x86_64.AppImage
+
+      - name: Prepare AppDir
+        run: |
+          mkdir -p AppDir/usr/bin
+          cp gource AppDir/usr/bin/
+          mkdir -p AppDir/usr/share/gource
+          cp -r data/* AppDir/usr/share/gource/
+          echo "[Desktop Entry]
+          Name=Gource
+          Exec=gource
+          Icon=gource
+          Type=Application
+          Categories=Development;Graphics;
+          Comment=Software version control visualization tool" > AppDir/gource.desktop
+          cp data/file.png AppDir/gource.png
+
+      - name: Bundle dependencies with linuxdeploy
+        run: |
+          ./linuxdeploy-x86_64.AppImage --appdir AppDir --executable AppDir/usr/bin/gource --desktop-file AppDir/gource.desktop --icon-file AppDir/gource.png --output appimage
+          mv Gource-x86_64.AppImage gource-${{ github.event.release.tag_name }}.AppImage
+
+      - name: Upload AppImage to Release
+        uses: softprops/action-gh-release@v1
+        with:
+          files: gource-${{ github.event.release.tag_name }}.AppImage
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}