CI for your Flutter apps on GitHub Actions.

flutter-ci.yml

name: Flutter CI

# This workflow is triggered on pushes to the repository.

on:
  push:
    branches:
    - master
    
# on: push    # Default will running for every branch.
    
jobs:
  build:
    # This job will run on ubuntu virtual machine
    runs-on: ubuntu-latest
    steps:
    
    # Setup Java environment in order to build the Android app.
    - uses: actions/checkout@v1
    - uses: actions/setup-java@v1
      with:
        java-version: '12.x'
    
    # Setup the flutter environment.
    - uses: subosito/flutter-action@v1
      with:
        channel: 'beta' # 'dev', 'alpha', default to: 'stable'
        # flutter-version: '1.12.x' # you can also specify exact version of flutter
    
    # Get flutter dependencies.
    - run: flutter pub get
    
    # Check for any formatting issues in the code.
    - run: flutter format --set-exit-if-changed .
    
    # Statically analyze the Dart code for any errors.
    - run: flutter analyze .
    
    # Run widget tests for our flutter project.
    - run: flutter test
    
    # Build apk.
    - run: flutter build apk
    
    # Upload generated apk to the artifacts.
    - uses: actions/upload-artifact@v1
      with:
        name: release-apk
        path: build/app/outputs/apk/release/app-release.apk

where is this stored?
I had added build to gitigcnore in my main project

Usually in your .github/workflows folder. If you create the gha via github, the folder is created automatically.

https://docs.github.com/en/actions

This github workflow create android apk, any examples on how to create iOS IPA file and upload to testflight without using Fastlane?

Appreciate any pointers.

keep facing this error :
The "format" command is deprecated and will be removed in a future version of Flutter. Please use the "dart format" sub-command instead, which takes all of the same command-line arguments as "flutter format".