build.yaml

name: Build Flutter Linux App as AppImage

on:
  push:
    branches:
      - main
  pull_request:
    branches:
      - main

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      # Checkout the repository
      - name: Checkout code
        uses: actions/checkout@v3

      # Install Flutter SDK
      - name: Install Flutter
        uses: subosito/flutter-action@v2
        with:
          flutter-version: '3.24.3'

      # Install AppImage and Linux dependencies
      - name: Install AppImage and Linux dependencies
        run: |
          sudo apt-get update
          sudo apt-get install -y libgtk-3-dev libblkid-dev e2fslibs-dev liblzma-dev libmpv-dev mpv ninja-build
          wget https://github.com/linuxdeploy/linuxdeploy/releases/download/continuous/linuxdeploy-x86_64.AppImage
          wget https://github.com/AppImage/AppImageKit/releases/download/continuous/appimagetool-x86_64.AppImage
          chmod +x linuxdeploy-x86_64.AppImage appimagetool-x86_64.AppImage

      # Fetch Flutter dependencies
      - name: Install Flutter dependencies
        run: flutter pub get

      # Run Flutter build for Linux
      - name: Build Flutter Linux App
        run: flutter build linux

      # Package the built Linux app into an AppImage
      - name: Create AppImage
        run: |
          APP_DIR=build/linux/x64/release/bundle
          ./linuxdeploy-x86_64.AppImage \
            --appdir=$APP_DIR \
            --output appimage \
            --desktop-file $APP_DIR/myapp.desktop \
            --icon-file $APP_DIR/myapp.png

      # Upload the AppImage as an artifact (optional)
      - name: Upload AppImage artifact
        uses: actions/upload-artifact@v3
        with:
          name: my-flutter-app.AppImage
          path: '*.AppImage'