production:
  image: java:8
  variables:
      BOARD: "esp8266:esp8266:nodemcuv2"
  before_script:
      - apt update
      - cd /
      - wget --quiet "https://www.arduino.cc/download.php?f=/arduino-nightly-linux64.tar.xz" -O "arduino-nightly-linux64.tar.xz"
      - tar axvf "arduino-nightly-linux64.tar.xz"
  script:
      - cd "${CI_PROJECT_DIR}"
      - /arduino-nightly/arduino --board "${BOARD}" --verify "blink.ino"