compile-test.yml

name: Compile Examples

on:
  push:
    branches: [ main ]
  pull_request:
    branches: [ main ]

jobs:
  build:
    runs-on: ubuntu-latest

    strategy:
      fail-fast: false
      matrix:
        board:
          - "rp2040:rp2040:rpipico"
          - "rp2040:rp2040:rpipico2"

    steps:
      - name: Checkout Code
        uses: actions/checkout@v4

      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.x'

      - name: Install Python Dependencies
        run: pip3 install pyserial

      - name: Setup Arduino CLI
        uses: arduino/setup-arduino-cli@v2

      # --- NEW CACHE STEP ---
      - name: Cache Arduino Core
        id: cache-arduino
        uses: actions/cache@v4
        with:
          path: ~/.arduino15/packages/rp2040
          key: ${{ runner.os }}-arduino-pico-core
          restore-keys: |
            ${{ runner.os }}-arduino-pico-core

      - name: Install Earle Philhower Core
        # This step only runs if the cache wasn't found (cache-hit != 'true')
        if: steps.cache-arduino.outputs.cache-hit != 'true'
        run: |
          arduino-cli core update-index --additional-urls https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json
          arduino-cli core install rp2040:rp2040 --additional-urls https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

      - name: Install Library
        run: |
          mkdir -p $HOME/Arduino/libraries
          ln -s $GITHUB_WORKSPACE $HOME/Arduino/libraries/PicoButtonAsync

      - name: Compile All Examples
        run: |
          for example in examples/*/*.ino; do
            echo "Compiling $example..."
            arduino-cli compile --fqbn ${{ matrix.board }} "$example"
          done