build-firmware.yaml

name: Build Firmware

on:
  push: # Trigger for pushes.
    paths:
      - hardware/firmware/**
      - .github/workflows/build-firmware.yaml
  pull_request: # Trigger for pull requests.
    types: [opened, synchronize, reopened, ready_for_review]
  workflow_dispatch: # Allows for manual triggering.
    inputs:
      ref:
        description: "The ref to build and test."
        required: false

# If another instance of this workflow is started for the same PR, cancel the
# old one.  If a PR is updated and a new test run is started, the old test run
# will be cancelled automatically to conserve resources.
concurrency:
  group: ${{ github.workflow }}-${{ inputs.ref || github.ref }}
  cancel-in-progress: true

jobs:
  build:
    name: Build Firmware
    runs-on: ubuntu-latest
    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ inputs.ref || github.ref }}

      - name: Install Arduino CLI
        uses: arduino/setup-arduino-cli@v1

      - name: Install Arduino RP2040 core
        run: arduino-cli core install rp2040:rp2040

      - name: Install Arduino libraries
        run: arduino-cli lib install Ethernet

      - name: Build firmware
        run: |
          cd hardware/firmware
          make build