name: CI

on:
  pull_request:
    branches:
      - master
  push:
    branches: 
      - master

jobs:
  build-and-test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2

      - name: create and checkout branch
        # push events already checked out the branch
        if: github.event_name == 'pull_request'
        run: git checkout -B ${{ github.head_ref }}

      - name: set up JDK 1.8
        uses: actions/setup-java@v1.4.3
        with:
          java-version: 1.8

      - name: Cache Gradle dependencies
        uses: actions/cache@v2
        with:
          path: ~/.gradle/caches
          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
          restore-keys: ${{ runner.os }}-gradle

      - name: Build debug APK and run Tests
        run: ./gradlew assembleDebug lintDebug testDebugUnitTest --stacktrace

      - name: Upload APK
        uses: actions/upload-artifact@v2
        with:
          name: app
          path: app/build/outputs/apk/debug/*.apk