toolchain.yml

name: toolchain
on:
  workflow_dispatch:
    inputs:
      platforms:
        description: 'Boards to rebuild and replace, space-separated (empty: build every toolchain not yet published)'
        required: false
        default: ''
        type: string

env:
  TAG_NAME: toolchain

jobs:
  select:
    name: Select platforms
    runs-on: ubuntu-22.04
    outputs:
      platforms: ${{steps.select.outputs.platforms}}
    steps:
      - name: Checkout source
        uses: actions/checkout@v4

      # Naming platforms is how one toolchain gets rebuilt after a change to
      # what it bundles (the uClibc compat archive, say): the full run below
      # skips every toolchain already published, so it would never replace one.
      - name: Select platforms
        id: select
        env:
          PLATFORMS: ${{inputs.platforms}}
        run: |
          set -eu
          ALL=$(sed -e 's/#.*//' <<'LIST'
          # Sigmastar
          ssc325_lite
          ssc335_lite
          ssc377_lite
          ssc338q_lite

          # Hisilicon
          hi3516av100_lite
          hi3516cv100_lite
          hi3516cv200_lite
          hi3516cv300_lite
          hi3516cv500_lite
          hi3516cv6xx_ultimate
          # aarch64 musl toolchain, built from a decoupled toolchain-only
          # config (see configs/hi3519dv500_toolchain_defconfig).
          hi3519dv500_toolchain
          hi3516ev200_lite
          hi3519v101_lite
          hi3520dv200_lite
          hi3536cv100_lite
          hi3536dv100_lite

          # Goke
          gk7102_lite
          gk7205v200_lite
          gk7205v500_lite
          gk7206v100_lite

          # Ingenic
          t20_lite
          t21_lite
          t31_lite
          t40_lite

          # Allwinner
          v851s_lite

          # Fullhan
          fh8852v100_lite
          fh8852v200_lite

          # Grainmedia
          gm8136_lite

          # Novatek
          nt98562_lite

          # Rockchip
          rv1106_lite
          rv1126_lite

          # Xiongmai
          xm510_lite
          xm530_lite
          LIST
          )
          SEL=${PLATFORMS:-$ALL}
          # Only the curated list: two boards outside it can share one
          # toolchain, and their jobs would race for the same release asset.
          for p in ${SEL}; do
            printf '%s\n' ${ALL} | grep -qx "${p}" || {
              echo "::error::${p} is not a toolchain platform; pick from the list in this workflow"
              exit 1
            }
          done
          dup=$(printf '%s\n' ${SEL} | sort | uniq -d)
          [ -z "${dup}" ] || { echo "::error::named twice: ${dup}"; exit 1; }
          echo "platforms=$(printf '%s\n' ${SEL} | jq -Rnc '[inputs]')" >> ${GITHUB_OUTPUT}

  toolchain:
    name: Toolchain
    needs: select
    runs-on: ubuntu-22.04

    strategy:
      fail-fast: false
      matrix:
        platform: ${{fromJSON(needs.select.outputs.platforms)}}

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

      - name: Build toolchain
        env:
          PLATFORMS: ${{inputs.platforms}}
        run: |
          GCC=$(make BOARD=${{matrix.platform}} toolname).tgz
          URL=https://github.com/${GITHUB_REPOSITORY}/releases/download/${TAG_NAME}/${GCC}
          echo ${URL}
          # A named platform is rebuilt even when published: that is why it was named.
          if [ -n "${PLATFORMS}" ] || ! wget -q --spider ${URL}; then
            make BOARD=${{matrix.platform}} toolchain
            SDK=$(find output/images -name *_sdk-buildroot.tar.gz)
            mv ${SDK} ${GCC}
            echo GCC=${GCC} >> ${GITHUB_ENV}
          fi

      - name: Upload toolchain
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{env.TAG_NAME}}
          make_latest: false
          files: ${{env.GCC}}