android-docker.yml

name: Android CI with Docker

on:
  push:
    branches: [ "main", "feat/*", "feature/*" ]
  pull_request:
    branches: [ "main" ]

jobs:
  build-in-docker:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v4
    
    - name: Build Docker Image
      run: docker build -t android-ci .
      
    - name: Determine Build Target
      id: target
      run: |
        if [ "${{ github.ref }}" == "refs/heads/main" ]; then
          echo "TASK=assembleRelease" >> $GITHUB_OUTPUT
          echo "APK_PATH=app/build/outputs/apk/release/app-release-unsigned.apk" >> $GITHUB_OUTPUT
          echo "ARTIFACT_NAME=app-release" >> $GITHUB_OUTPUT
        else
          echo "TASK=assembleDebug" >> $GITHUB_OUTPUT
          echo "APK_PATH=app/build/outputs/apk/debug/app-debug.apk" >> $GITHUB_OUTPUT
          echo "ARTIFACT_NAME=app-debug" >> $GITHUB_OUTPUT
        fi

    - name: Run Gradle Build in Docker
      # Mount current directory to /app
      # Use the image built in previous step
      # Run './gradlew <task>'
      run: |
        docker run --rm \
          -v ${{ github.workspace }}:/app \
          -w /app \
          android-ci \
          bash -c "chmod +x gradlew && ./gradlew ${{ steps.target.outputs.TASK }}"

    - name: Upload APK
      uses: actions/upload-artifact@v4
      with:
        name: ${{ steps.target.outputs.ARTIFACT_NAME }}
        path: ${{ steps.target.outputs.APK_PATH }}