env:
  global:
    - ARDUINO_IDE_VERSION="1.8.9"
  matrix:
    - BOARD="arduino:avr:uno"
    - BOARD="arduino:avr:leonardo"
    - BOARD="arduino:avr:mega:cpu=atmega2560"

before_install:
  # install Arduino IDE
  - wget https://downloads.arduino.cc/arduino-$ARDUINO_IDE_VERSION-linux64.tar.xz
  - tar xf arduino-$ARDUINO_IDE_VERSION-linux64.tar.xz
  - mv arduino-$ARDUINO_IDE_VERSION $HOME/arduino-ide
  - export PATH=$PATH:$HOME/arduino-ide
  # firewall Arduino IDE noise (https://github.com/per1234/arduino-ci-script/issues/1#issuecomment-504158113)
  - sudo iptables -P INPUT DROP
  - sudo iptables -P FORWARD DROP
  - sudo iptables -P OUTPUT ACCEPT
  - sudo iptables -A INPUT -i lo -j ACCEPT
  - sudo iptables -A OUTPUT -o lo -j ACCEPT
  - sudo iptables -A INPUT -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT

# create directory to save the library and create symbolic link
install:
  - mkdir -p $HOME/Arduino/libraries
  - ln -s $PWD $HOME/Arduino/libraries/RadioLib

# only build the master branch
branches:
  only:
    - master

script:
  # build all example sketches
  - for example in $(find $PWD/examples -name '*.ino' | sort); do
      echo -e "\n\033[1;33mBuilding ${example##*/} ... \033[0m";
      arduino --verify --board $BOARD $example;
      if [ $? -ne 0 ]; then
        echo -e "\033[1;31m${example##*/} build FAILED\033[0m\n";
        exit 1;
      else
        echo -e "\033[1;32m${example##*/} build PASSED\033[0m\n";
      fi
    done
  # generate Doxygen documentation (only for Arduino UNO)
  - if [ $BOARD = "arduino:avr:uno" ]; then
      sudo apt-get update;
      sudo apt-get install -y doxygen;
      doxygen Doxyfile;
    fi

# deploy Doxygen docs on master branch and only when building for Arduino UNO
deploy:
  provider: pages
  skip_cleanup: true
  local_dir: docs/html
  github_token: $GH_REPO_TOKEN
  on:
    branch: master
    condition: $BOARD = "arduino:avr:uno"