.travis.yml

language: generic

services:
  - docker

env:
  global:
    - DOCKER_COMPOSE_VERSION=1.24.1
    - CC_TEST_REPORTER_ID=777498466b16e0a5aab6758838834f67774f3b3d3bbe7c04b09b3d663974caec

cache:
  bundler: true
  directories:
    - $HOME/docker

before_install:
  # install docker-compose
  - sudo rm /usr/local/bin/docker-compose
  - curl -L https://github.com/docker/compose/releases/download/${DOCKER_COMPOSE_VERSION}/docker-compose-`uname -s`-`uname -m` > docker-compose
  - chmod +x docker-compose
  - sudo mv docker-compose /usr/local/bin

  # code-climate
  - curl -L https://codeclimate.com/downloads/test-reporter/test-reporter-latest-linux-amd64 > ./cc-test-reporter
  - chmod +x ./cc-test-reporter
  - ./cc-test-reporter before-build

  # docker cache
  - if [[ -d $HOME/docker ]]; then ls $HOME/docker/*.tar.gz | xargs -I {file} sh -c "zcat {file} | docker load"; fi

install: skip

before_script:
  - docker-compose build
script:
  - docker-compose run app bundle exec rake spec
after_script:
  # code-climate
  - docker-compose run -e TRAVIS_BRANCH -e TRAVIS_COMMIT -e CC_TEST_REPORTER_ID app ./cc-test-reporter after-build --exit-code $TRAVIS_TEST_RESULT

before_cache:
  # Save tagged docker images
  - >
    mkdir -p $HOME/docker && docker images -a --filter='dangling=false' --format '{{.Repository}}:{{.Tag}} {{.ID}}'
    | xargs -n 2 -t sh -c 'test -e $HOME/docker/$1.tar.gz || docker save $0 | gzip -2 > $HOME/docker/$1.tar.gz'