moving CI from travis to Arduino CLI

Author: lathoub

.github/workflows/build.yml

@@ -0,0 +1,11 @@
+name: build
+on: [pull_request, push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+  steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+
+    - name: Build on Arduino CLI
+      run: bash ci/build-arduino.sh

ci/build-arduino.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+# Exit immediately if a command exits with a non-zero status.
+set -e
+# Enable the globstar shell option
+shopt -s globstar
+# Make sure we are inside the github workspace
+cd $GITHUB_WORKSPACE
+# Create directories
+mkdir $HOME/Arduino
+mkdir $HOME/Arduino/libraries
+# Install Arduino IDE
+export PATH=$PATH:$GITHUB_WORKSPACE/bin
+curl -fsSL https://raw.githubusercontent.com/arduino/arduino-cli/master/install.sh | sh
+arduino-cli config init
+arduino-cli core update-index
+
+# Install Arduino AVR core
+arduino-cli core install arduino:avr
+
+# Link Arduino library
+ln -s $GITHUB_WORKSPACE $HOME/Arduino/libraries/CI_Test_Library
+
+# Compile all *.ino files for the Arduino Uno
+for f in AVR_*/*.ino ; do
+    arduino-cli compile -b arduino:avr:uno $f
+done