.travis.yml

# Android language used because it installs Android SDK required by DroidMate.
language: java

git:
  # To speed up things. By default it is 50.
  depth: 1 
  
jdk:
  # Most of DroidMate is compiled with Java 8.
  - oraclejdk8

env:
  global:

    # Required to obtain reference to jarsigner.
    - JAVA_HOME=/usr/lib/jvm/java-8-oracle

before_install:

  # Change to the directory containing the main build script of DroidMate.
  # - cd dev/droidmate

  # Allow Gradle build script to execute.
  - chmod +x gradlew

before_cache:

  # Allow Gradle to use cache.
  - rm -f $HOME/.gradle/caches/modules-2/modules-2.lock

cache:
  directories:

    # Cache gradle dirs.
    - $HOME/.gradle/caches/
    - $HOME/.gradle/wrapper/

    # Note: Android SDK should not be cached, according to https://docs.travis-ci.com/user/caching/#Things-not-to-cache

script:

  # By default, 'android' language uses 'connectedCheck'. Here we replace it with appropriate task.
  - ./gradlew build