buid.yml

name: STM32 Build Pipeline

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

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      # 1. Checkout repo
      - name: Checkout code
        uses: actions/checkout@v4
        with:
            submodules: true

      # 2. Install ARM cross compiler + tools
      - name: Install ARM GCC Toolchain
        run: |
          sudo apt-get update
          sudo apt-get install -y gcc-arm-none-eabi cmake make

      # 3. Configure with CMake
      - name: Configure project
        run: |
          mkdir -p build
          cd build
          cmake ..

      # 4. Build firmware
      - name: Build firmware
        run: |
          cd build
          make cli -j$(nproc)

      # 5. Check ELF file size (helpful sanity check)
      - name: Firmware size
        run: |
          cd build
          arm-none-eabi-size *.elf || true