Merge branch 'rhunault-setup-ci' into 'master'

image: "registry.gitlab.e.foundation:5000/e/apps/docker-android-apps-cicd:latest"

stages:

- build

before_script:

- export GRADLE_USER_HOME=$(pwd)/.gradle

- chmod +x ./gradlew

cache:

  key: ${CI_PROJECT_ID}

  paths:

  - .gradle/

build:

  stage: build

  script:

  - ./gradlew build -x test

  artifacts:

    paths:

    - app/build/outputs/apk

    lintOptions {

        checkReleaseBuilds false

        abortOnError false

    }

    // needed to use android.test package (ActivityInstrumentationTestCase2 etc) when targetting sdk 28 (Android 9) -