build.yml

name: Flutter Build

on: [push, workflow_dispatch, workflow_call]
jobs:
  build:
    strategy:
      fail-fast: false  
      matrix:
        include:
          - arch: aarch64
            os: macos-11
            target: macos
            lipo-arch: arm64
          - arch: amd64
            os: macos-11
            target: macos
            lipo-arch: x86_64
          - arch: amd64
            os: windows-2019 
            target: windows
          - arch: amd64
            os: ubuntu-20.04
            target: linux
    name: ${{ matrix.target }} ${{ matrix.arch }}
    runs-on: ${{ matrix.os }} 
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Install Flutter
        uses: subosito/flutter-action@v2
        with:
          flutter-version: '3.3.10'
          channel: 'stable'
          cache: true

      - if: ${{ matrix.target == 'linux' }}
        name: 'Linux: Install GTK-3'
        run: sudo apt-get install -y libgtk-3-dev

      - if: ${{ matrix.target == 'linux' }}
        name: 'Linux: Install Ninja'
        uses: turtlesec-no/get-ninja@main

      - name: Build
        run: flutter build ${{ matrix.target }} --release -v

      - if: ${{ matrix.target == 'macos' }}
        name: 'MacOS: Thin binary'
        run: >-
          lipo build/macos/Build/Products/Release/flutter_demo.app/Contents/MacOS/flutter_demo
          -output build/macos/Build/Products/Release/flutter_demo.app/Contents/MacOS/flutter_demo
          -thin ${{ matrix.lipo-arch }}

      - if: ${{ matrix.target == 'windows' }}
        name: 'Windows: Upload artifact'
        uses: actions/upload-artifact@v3
        with:
          name: build-${{ matrix.target }}-${{ matrix.arch }}
          path: build/windows/runner/Release
      
      - if: ${{ matrix.target == 'macos' }}
        name: 'MacOS: Tar results'
        run: >-
          tar cvf build-${{ matrix.target }}-${{ matrix.arch }}.tar
          -C build/macos/Build/Products/Release flutter_demo.app

      - if: ${{ matrix.target == 'linux' }}
        name: 'Linux: Tar results'
        run: >-
          tar cvf build-${{ matrix.target }}-${{ matrix.arch }}.tar
          -C build/linux/*/release bundle

      - if: ${{ matrix.target != 'windows' }}
        name: 'Upload Tar'
        uses: actions/upload-artifact@v3
        with:
          name: build-${{ matrix.target }}-${{ matrix.arch }}
          path: build-${{ matrix.target }}-${{ matrix.arch }}.tar