name: Build & Test

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:

  build:
    runs-on: ubuntu-latest
    timeout-minutes: 30

    steps:
    - uses: actions/checkout@v2
    
    - name: Set up JDK 11
      uses: actions/setup-java@v1
      with:
        java-version: 11
      
    - name: Cache Maven dependencies
      uses: actions/cache@v2
      with:
        path: ~/.m2
        key: ${{ runner.os }}-m2-${{ hashFiles('**/pom.xml') }}
        restore-keys: ${{ runner.os }}-m2
        
    - name: Configure OS settings
      run: echo "fs.file-max = 1024000" | sudo tee -a /etc/sysctl.conf

    # NB: we exclude external API tests from the CI, because we don't want our build to fail because a dependency is failing.
    # This means we won't automatically catch changes in external APIs, but developers should regularly run the test suite locally so in practice it shouldn't be a problem.
    - name: Build with Maven
      run: mvn test-compile && mvn scoverage:report -DtagsToExclude=external-api

    - name: Upload coverage to Codecov
      uses: codecov/codecov-action@v1