Port CI pipeline to PlatformIO (#936)

Fixes #885

.travis.yml

@@ -1,28 +1,18 @@
 language: c
 env:
-  - BD=esp8266:esp8266:nodemcuv2:xtal=80,eesz=4M3M,ip=lm2f,exception=disabled
-  # - BD=esp8266:esp8266:d1_mini:xtal=80,eesz=4M3M,ip=lm2f,exception=disabled
+  - PLATFORMIO_BUILD_CACHE_DIR="../../.pio/buildcache"
+cache:
+  directories:
+    - "~/.platformio"
 before_install:
-  - "/sbin/start-stop-daemon --start --quiet --pidfile /tmp/custom_xvfb_1.pid --make-pidfile --background --exec /usr/bin/Xvfb -- :1 -ac -screen 0 1280x1024x16"
-  - sleep 3
-  - export DISPLAY=:1.0
-  - wget http://downloads.arduino.cc/arduino-1.8.8-linux64.tar.xz
-  - tar xf arduino-1.8.8-linux64.tar.xz
-  - sudo mv arduino-1.8.8 /usr/local/share/arduino
-  - sudo ln -s /usr/local/share/arduino/arduino /usr/local/bin/arduino
   - wget https://raw.githubusercontent.com/google/styleguide/gh-pages/cpplint/cpplint.py
 install:
-  - ln -s $PWD /usr/local/share/arduino/libraries/
-  - git clone https://github.com/tzapu/WiFiManager.git /usr/local/share/arduino/libraries/WiFiManager
-  - git clone https://github.com/knolleary/pubsubclient.git /usr/local/share/arduino/libraries/PubSubClient
-  - git clone https://github.com/bblanchon/ArduinoJson.git --branch 6.x /usr/local/share/arduino/libraries/ArduinoJson
-  - arduino --pref "boardsmanager.additional.urls=http://arduino.esp8266.com/stable/package_esp8266com_index.json" --save-prefs
-  - arduino --install-boards esp8266:esp8266
-  - arduino --board $BD --save-prefs
-  - arduino --pref "compiler.warning_level=all" --save-prefs
   - sudo apt-get install jq
   - sudo apt-get purge python-enum34
   - sudo apt-get install pylint3
+  - sudo pip install platformio
+  - pio update
+  - pio lib -g install ArduinoJson@^5.0.0 PubSubClient WifiManager
 script: echo Running checks
 notifications:
   email:
@@ -31,33 +21,8 @@ notifications:
 jobs:
   include:
     - script:
-      # Check that everything compiles. (Part 1)
-      - arduino --verify --board $BD $PWD/examples/IRrecvDemo/IRrecvDemo.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/IRGCSendDemo/IRGCSendDemo.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/IRGCTCPServer/IRGCTCPServer.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/IRServer/IRServer.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/IRrecvDumpV2/IRrecvDumpV2.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/IRsendDemo/IRsendDemo.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/JVCPanasonicSendDemo/JVCPanasonicSendDemo.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnDaikinAC/TurnOnDaikinAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnFujitsuAC/TurnOnFujitsuAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnKelvinatorAC/TurnOnKelvinatorAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnMitsubishiAC/TurnOnMitsubishiAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/Web-AC-control/Web-AC-control.ino 2> /dev/null
-    - script:
-      # Check that everything compiles. (Part 2)
-      - arduino --verify --board $BD $PWD/examples/IRsendProntoDemo/IRsendProntoDemo.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnTrotecAC/TurnOnTrotecAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/LGACSend/LGACSend.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnArgoAC/TurnOnArgoAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/IRMQTTServer/IRMQTTServer.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnToshibaAC/TurnOnToshibaAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/ControlSamsungAC/ControlSamsungAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnPanasonicAC/TurnOnPanasonicAC.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/TurnOnMitsubishiHeavyAc/TurnOnMitsubishiHeavyAc.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/DumbIRRepeater/DumbIRRepeater.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/SmartIRRepeater/SmartIRRepeater.ino 2> /dev/null
-      - arduino --verify --board $BD $PWD/examples/CommonAcControl/CommonAcControl.ino 2> /dev/null
+      # Check that everything compiles.
+      - find examples/ -mindepth 1 -maxdepth 1 -type d | xargs -n 1 pio run --project-dir
     - script:
       # Check the version numbers match.
       - LIB_VERSION=$(egrep "^#define\s+_IRREMOTEESP8266_VERSION_\s+" src/IRremoteESP8266.h  | cut -d\" -f2)