.travis.yml

language: c++

dist: bionic
addons:
  apt:
    packages: 
    - arduino-mk
    - wget
    - python3

before_install:
  - echo `pwd`
  - wget https://www.arduino.cc/download.php?f=/arduino-1.8.12-linux64.tar.xz -O arduino.tar.xz 
  - tar xf arduino.tar.xz
  - cd arduino-1.8.12
  - export PATH=$PATH:`pwd`
  - cd ..

install:
  - echo `pwd`
  - echo $PATH
  - arduino --pref boardsmanager.additional.urls=http://arduino.esp8266.com/stable/package_esp8266com_index.json --install-boards esp8266:esp8266
  - arduino --install-library ArduinoJson:5.13.4

before_script:
  - echo ${TRAVIS_BUILD_DIR}
  - cd ${TRAVIS_BUILD_DIR}/examples
  - echo `pwd`
  - for d in */; do cp ../src/* ${d}/; done

script:
  - cd ${TRAVIS_BUILD_DIR}/examples
  - for d in */; do arduino --pref compiler.cpp.extra_flags="-Wall -Wextra -Werror" --board esp8266:esp8266:d1 --verify ${d}*.ino; done