build.yaml

name: Build firmwares

on:
  pull_request:
    paths-ignore:
      - '.gitignore'
      - 'README.md'
  push:
    paths-ignore:
      - '.gitignore'
      - 'README.md'
  release:
    types:
      - published

env:
  REGISTRY: ghcr.io

jobs:
  run-pre-commit:
    name: Run pre-commit
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - uses: actions/setup-python@v3
      - name: Install pre-commit
        run: |
          pip install pre-commit
          pre-commit install
      - name: Run pre-commit
        run: |
          pre-commit run --show-diff-on-failure --color=always --all-files

  build-container:
    name: Create build container image
    runs-on: ubuntu-latest
    permissions:
      packages: write
    steps:
      - uses: actions/checkout@v4.1.4
      - name: Log in to the GitHub container registry
        uses: docker/login-action@v3.1.0
        with:
          registry: ${{ env.REGISTRY }}
          username: ${{ github.repository_owner }}
          password: ${{ secrets.GITHUB_TOKEN }}
      - name: Read repository information
        id: read-repo-info
        run: |
          if [[ $GITHUB_EVENT_NAME == "pull_request" ]]; then
            base_image=$(echo ${{ github.event.pull_request.base.repo.full_name }} | awk '{print tolower($0)}')
            head_image=$(echo ${{ github.event.pull_request.head.repo.full_name }} | awk '{print tolower($0)}')
          else
            base_image=$(echo ${{ github.repository }} | awk '{print tolower($0)}')
            head_image=$(echo ${{ github.repository }} | awk '{print tolower($0)}')
          fi

          tag_name=$(echo "${{ hashFiles('Dockerfile') }}" | cut -c-16)

          # Default to building a new container under the original repo
          image_name=$head_image
          build_image=true

          # Check if we can use the base image (Nabu Casa)
          if docker manifest inspect ${{ env.REGISTRY }}/$base_image:$tag_name; then
            image_name=$base_image
            build_image=false
          fi

          # Check if we can use the head image (if this is a PR)
          if [[ $base_image != $head_image ]]; then
            if docker manifest inspect ${{ env.REGISTRY }}/$head_image:$tag_name; then
              image_name=$head_image
              build_image=false
            fi
          fi

          if [[ $build_image == "true" && $GITHUB_EVENT_NAME == "pull_request" ]]; then
            echo "Cannot build a new container within a PR. Please re-run this action after $head_image:$tag_name is built."
            exit 1
          fi

          echo "build_image=$build_image" >> $GITHUB_OUTPUT
          echo "tag_name=$tag_name" >> $GITHUB_OUTPUT
          echo "image_name=$image_name" >> $GITHUB_OUTPUT
          echo "container_name=${{ env.REGISTRY }}/$image_name:$tag_name" >> $GITHUB_OUTPUT
      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@v3.3.0
        if: steps.read-repo-info.outputs.build_image == 'true'
      - name: Build and Push
        uses: docker/build-push-action@v5.3.0
        if: steps.read-repo-info.outputs.build_image == 'true'
        with:
          context: .
          file: Dockerfile
          tags: ${{ env.REGISTRY }}/${{ steps.read-repo-info.outputs.image_name }}:${{ steps.read-repo-info.outputs.tag_name }}
          cache-from: ${{ env.REGISTRY }}/${{ steps.read-repo-info.outputs.image_name }}:cache-${{ steps.read-repo-info.outputs.tag_name }}
          cache-to: ${{ env.REGISTRY }}/${{ steps.read-repo-info.outputs.image_name }}:cache-${{ steps.read-repo-info.outputs.tag_name }}
          push: true
    outputs:
      tag_name: ${{ steps.read-repo-info.outputs.tag_name }}
      image_name: ${{ steps.read-repo-info.outputs.image_name }}
      container_name: ${{ steps.read-repo-info.outputs.container_name }}


  list-manifests:
    name: List firmware manifests
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.set-matrix.outputs.matrix }}
    steps:
      - uses: actions/checkout@v4.1.4
      - id: set-matrix
        run: |
          echo "matrix=$(find manifests -type f \( -name "*.yaml" -o -name "*.yml" \) -print | sort | jq -R -s -c 'split("\n")[:-1]')" >> $GITHUB_OUTPUT

  build-firmwares:
    name: Firmware builder
    needs: [list-manifests, build-container]
    runs-on: ubuntu-latest
    container:
      image: ${{ needs.build-container.outputs.container_name }}
      options: --user root
    strategy:
      matrix:
        manifest: ${{ fromJson(needs.list-manifests.outputs.matrix) }}
    steps:
      - uses: actions/checkout@v4.1.4

      - name: Install SDK extensions
        run: |
          # XXX: slc-cli does not actually work when the extensions aren't in the SDK!
          for sdk in /gecko_sdk_*; do
            slc signature trust --sdk "$sdk"

            ln -s $PWD/gecko_sdk_extensions "$sdk"/extension

            for ext in "$sdk"/extension/*/; do
              slc signature trust --sdk "$sdk" --extension-path "$ext"
            done
          done

      - name: Build firmware
        id: build-firmware
        run: |
          # Fix `fatal: detected dubious ownership in repository at`
          git config --global --add safe.directory "$GITHUB_WORKSPACE"

          # Pass all SDKs as consecutive `--sdk ...` arguments
          sdk_args=""
          for sdk_dir in /gecko_sdk*; do
            sdk_args="$sdk_args --sdk $sdk_dir"
          done

          # Pass all toolchains as consecutive `--toolchain ...` arguments
          toolchain_args=""
          for toolchain_dir in /opt/*arm-none-eabi*; do
            toolchain_args="$toolchain_args --toolchain $toolchain_dir"
          done

          # Build it
          python3 tools/build_project.py \
            $sdk_args \
            $toolchain_args \
            --manifest "${{ matrix.manifest }}" \
            --build-dir build \
            --build-system makefile \
            --output-dir outputs \
            --output gbl \
            --output hex \
            --output out

          # Get the basename of the GBL in `outputs`
          output_basename=$(basename -- $(basename -- $(ls -1 outputs/*.gbl | head -n 1)) .gbl)
          echo "output_basename=$output_basename" >> $GITHUB_OUTPUT

      - name: Install node within container (act)
        if: ${{ env.ACT }}
        run: |
          curl -fsSL https://deb.nodesource.com/nsolid_setup_deb.sh | bash -s 20
          apt-get install -y nodejs

      - name: Upload artifact
        uses: actions/upload-artifact@v4.3.3
        with:
          name: firmware-build-${{ steps.build-firmware.outputs.output_basename }}
          path: outputs/*
          compression-level: 9
          if-no-files-found: error

  release-assets:
    name: Upload release assets
    needs: [build-firmwares]
    if: github.event_name == 'release'
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - name: Download all workflow artifacts
        uses: actions/download-artifact@v4
        with:
          path: artifacts
          merge-multiple: true
          pattern: firmware-build-*

      - name: Upload artifacts
        uses: softprops/action-gh-release@v1
        with:
          files: artifacts/*.gbl