.travis.yml

sudo: false
language: android
jdk:
  - oraclejdk8

# Only create build on Pushes to Master or Pull Requests.
branches:
  only:
    - master

# Disable emails entirely
notifications:
  email: false


before_cache:
  # Do not cache a few Gradle files/directories (see https://docs.travis-ci.com/user/languages/java/#Caching)
  - rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
  - rm -fr $HOME/.gradle/caches/*/plugin-resolution/

cache:
  directories:
    # Android SDK
    - $HOME/android-sdk-dl
    - $HOME/android-sdk

    # Gradle dependencies
    - $HOME/.gradle/caches/
    - $HOME/.gradle/wrapper/

    # Android build cache (see http://tools.android.com/tech-docs/build-cache)
    - $HOME/.android/build-cache

# INSTRUMENTED TESTS ARE DISABLED - until Google or Travis fix the mess with emulation, only local tests are enabled
#  - sys-img-armeabi-v7a-android-24
install:
# Download and unzip the Android SDK tools (if not already there thanks to the cache mechanism)
# Latest version available here: https://developer.android.com/studio/index.html#downloads
- if test ! -e $HOME/android-sdk-dl/sdk-tools.zip ; then curl https://dl.google.com/android/repository/sdk-tools-linux-3859397.zip > $HOME/android-sdk-dl/sdk-tools.zip ; fi
- unzip -qq -n $HOME/android-sdk-dl/sdk-tools.zip -d $HOME/android-sdk
# Travis still uses 'android' command behind the 'components' section update.
# That command is obsolete and cannot update Android SDK Tools after 25.2.5.
# Let's solve it here with the new command 'sdkmanager'
- echo y | $HOME/android-sdk/tools/bin/sdkmanager 'tools' > /dev/null
- echo y | $HOME/android-sdk/tools/bin/sdkmanager 'platform-tools' > /dev/null
- echo y | $HOME/android-sdk/tools/bin/sdkmanager 'build-tools;26.0.1' > /dev/null
- echo y | $HOME/android-sdk/tools/bin/sdkmanager 'platforms;android-26' > /dev/null
- echo y | $HOME/android-sdk/tools/bin/sdkmanager 'extras;google;m2repository' > /dev/null

script:
# force init of adb way before any Gradle task that uses ADB; prevents a timeout error that skips emulators of android-24
  - adb devices
# Gradle Clean
  - ./gradlew clean
# build app and assemble APK, in debug mode
  - ./gradlew assembleDebug
# run all the local unit tests of app module
  - ./gradlew test
# run lint checker
  - ./gradlew lint

env:
  global:
  - ANDROID_HOME=$HOME/android-sdk
  matrix:
  - ANDROID_TARGET=android-24 ANDROID_ABI=armeabi-v7a