.travis.yml

sudo: true

language: minimal

os: linux 
arch: amd64 
dist: bionic

services: 
  - docker

branches:
  only:
  - master

# Install kafkacat to test cpu2evtstreams IBM Event Streams data
before_install:
  - sudo apt-get update
  - sudo apt-get -y install librdkafka-dev libyajl-dev
  - sudo apt-get -y install kafkacat

# Install packages needed for docker, and qemu to build multi arch builds 
addons:
  apt:
    update: true
    packages:
    - docker-ce
    - qemu
    - qemu-user-static
    - binfmt-support
    - dpkg-cross

# Required travis secret env vars for docker, publishing, and event streams:
# DOCKER_HUB_USER, DOCKER_HUB_PASS, PRIVATE_KEY, PUBLIC_KEY, HZN_EXCHANGE_USER_AUTH, EVTSTREAMS_API_KEY, EVTSTREAMS_BROKER_URL
# Publish to staging if successful 
env:
  - HZN_EXCHANGE_URL=https://stg.edge-fabric.com/v1 EVTSTREAMS_TOPIC=cpu2evtstreams HZN_DEVICE_ID=travis-test

# Install the hzn command
install:
  - wget https://github.com/open-horizon/anax/releases/latest/download/horizon-agent-linux-deb-amd64.tar.gz -O /tmp/horizon-agent-linux-deb-amd64.tar.gz
  - tar -zxf /tmp/horizon-agent-linux-deb-amd64.tar.gz -C /tmp/
  - sudo apt-get install -y /tmp/horizon-cli*.deb

# Build and test the example services that were changed in the PR for all arches 
# Note: tools/travis-find determines if the specified "service" was modified, so we know if we should test it.
# The three docker commands are to simulate the arm and arm64 arches for cross-compiling 
# cpu2evtstreams is the only service that is checked end to end, making sure data is delivered to IBM Event Streams
script:
  - services=( edge/services/helloworld edge/services/cpu_percent edge/services/gps edge/services/sdr edge/services/helloMMS edge/services/mqtt_broker edge/services/mqtt2kafka edge/services/hotword_detection edge/services/stopword_removal edge/services/audio2text edge/services/text2speech edge/services/voice2audio edge/services/processtext edge/evtstreams/cpu2evtstreams edge/evtstreams/sdr2evtstreams edge/evtstreams/watson_speech2text edge/services/volantmq edge/services/fft_server edge/services/fft_client )
  - |
    docker run --rm --privileged multiarch/qemu-user-static --reset -p yes
    docker run --rm -t arm32v6/alpine uname -m
    docker run --rm -t arm64v8/ubuntu uname -m

    for service in "${services[@]}"; do
      if git diff --name-only $TRAVIS_COMMIT_RANGE | $TRAVIS_BUILD_DIR/tools/travis-find $service -v; then
        if [[ $service == *"cpu2evtstreams"* ]]; then 
          echo "Monitor IBM Event Streams!"
          kafkacat -C -c 1 -q -o end -f "%t/%p/%o/%k: %s\n" -b $EVTSTREAMS_BROKER_URL -X api.version.request=true -X security.protocol=sasl_ssl -X sasl.mechanisms=PLAIN -X sasl.username=token -X sasl.password=$EVTSTREAMS_API_KEY -t $EVTSTREAMS_TOPIC > $TRAVIS_BUILD_DIR/output.txt 2>&1 &
        fi
        cd $TRAVIS_BUILD_DIR/$service && make test-all-arches; 
        if [ $? -eq 0 ]; then
          if [[ $service == *"cpu2evtstreams"* ]]; then
            if grep -Fq "$HZN_DEVICE_ID" $TRAVIS_BUILD_DIR/output.txt; then
              cat $TRAVIS_BUILD_DIR/output.txt
              passed=( "${passed[@]}" "$service" )
            fi
          else
            passed=( "${passed[@]}" "$service" )
          fi
        fi
      fi
      
    done
  - cd $TRAVIS_BUILD_DIR

# If this is after the PR has been merged into master, and the test was successful, then publish the example
# Copy the public and provate signing keys to the location horizon searches for them, 
# Log into docker and publish services and pattern "test-all-arches"
after_success:
  - |
    mkdir /home/travis/.hzn && mkdir /home/travis/.hzn/keys
    echo $PUBLIC_KEY | base64 -d > /home/travis/.hzn/keys/service.public.pem
    echo $PRIVATE_KEY | base64 -d > /home/travis/.hzn/keys/service.private.key
    echo "$DOCKER_HUB_PASS" | docker login -u "$DOCKER_HUB_USER" --password-stdin &&
    for service in "${passed[@]}"; do
      if [[ "$TRAVIS_PULL_REQUEST" == "false" ]] && git diff --name-only $TRAVIS_COMMIT_RANGE | $TRAVIS_BUILD_DIR/tools/travis-find $service -v; then
        echo "Publishing $service..." &&
        cd $TRAVIS_BUILD_DIR/$service && make publish;
      fi
    done