Flutter Build, Test and Release config for GitHub actions

flutter.yml

name: Test, Build and Release

# Controls when the action will run. Triggers the workflow on push or pull request
# events but only for the master branch
on:
  push:
    branches: 
      - master

# A workflow run is made up of one or more jobs that can run sequentially or in parallel
jobs:
  build:
    # The type of runner that the job will run on
    runs-on: ubuntu-latest

    steps:
    - run: echo "y" | sudo ${ANDROID_HOME}/tools/bin/sdkmanager --install "ndk;20.0.5594570"
    # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
    - uses: actions/checkout@v2
    - uses: actions/setup-java@v1
      with:
        java-version: '8'

    - name: Get key file
      id: write_file
      uses: timheuer/base64-to-file@v1.0.3
      with:
        fileName: 'key'
        encodedString: ${{ secrets.KEY_FILE }}

    - uses: subosito/flutter-action@v1
      with:
        flutter-version: '1.12.13+hotfix.9'
    - run: flutter pub get
    - run: flutter test
    - run: flutter build apk --release
      env:
        KEY_STORE_PASSWORD: ${{ secrets.STORE_PASSWORD }}
        KEY_PASSWORD: ${{ secrets.KEY_PASSWORD }}
        KEY_ALIAS: oreo
        KEY_PATH: ${{ steps.write_file.outputs.filePath }}

    - name: Read version code from local.properties
      id: read_version_code
      uses: christian-draeger/read-properties@1.0.1
      with:
        path: './android/local.properties'
        property: 'flutter.versionCode'
    - name: Read version name from local.properties
      id: read_version_name
      uses: christian-draeger/read-properties@1.0.1
      with:
        path: './android/local.properties'
        property: 'flutter.versionName'
    - name: Get current time
      uses: 1466587594/get-current-time@v1
      id: current-time
      with:
        format: YYYYMMDDHH
        utcOffset: "+08:00"
    
    - name: Create a Release APK
      id: create_release
      uses: actions/create-release@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # This token is provided by Actions, you do not need to create your own token
      with:
        tag_name: "v${{ steps.read_version_name.outputs.value }}(${{ steps.read_version_code.outputs.value }})"
        release_name: "Release v${{ steps.read_version_name.outputs.value }}(${{ steps.read_version_code.outputs.value }})"
        body: |
          A New Release
        draft: false
        prerelease: true
    - name: Upload Release Asset
      id: upload-release-asset 
      uses: actions/upload-release-asset@v1
      env:
        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
      with:
        upload_url: ${{ steps.create_release.outputs.upload_url }} # This pulls from the CREATE RELEASE step above, referencing it's ID to get its outputs object, which include a `upload_url`. See this blog post for more info: https://jasonet.co/posts/new-features-of-github-actions/#passing-data-to-future-steps 
        asset_path: build/app/outputs/apk/release/app-release.apk
        asset_name: "app_release_${{ steps.read_version_name.outputs.value }}_${{ steps.read_version_code.outputs.value }}_${{ steps.current-time.outputs.formattedTime }}.apk"
        asset_content_type: application/zip