name: Refresh kernel for target

on:
  workflow_call:
    inputs:
      target:
        required: true
        type: string

permissions:
  contents: read

jobs:
  setup_build:
    name: Setup build
    runs-on: ubuntu-latest
    outputs:
      owner_lc: ${{ steps.lower_owner.outputs.owner_lc }}

    steps:
      - name: Set lower case owner name
        id: lower_owner
        run: |
          OWNER_LC=$(echo "${{ github.repository_owner }}" \
            | tr '[:upper:]' '[:lower:]')
          echo "owner_lc=$OWNER_LC" >> $GITHUB_OUTPUT

  check-patch:
    name: Check Kernel patches
    needs: setup_build
    runs-on: ubuntu-latest

    container: ghcr.io/${{ needs.setup_build.outputs.owner_lc }}/tools:latest

    permissions:
      contents: read
      packages: read

    steps:
      - name: Checkout master directory
        uses: actions/checkout@v3
        with:
          path: openwrt

      - name: Fix permission
        run: |
          chown -R buildbot:buildbot openwrt

      - name: Initialization environment
        run: |
          TARGET=$(echo ${{ inputs.target }} | cut -d "/" -f 1)
          SUBTARGET=$(echo ${{ inputs.target }} | cut -d "/" -f 2)
          echo "TARGET=$TARGET" >> "$GITHUB_ENV"
          echo "SUBTARGET=$SUBTARGET" >> "$GITHUB_ENV"

      - name: Extract prebuilt tools
        shell: su buildbot -c "sh -e {0}"
        working-directory: openwrt
        run: ./scripts/ext-tools.sh --tools /tools.tar

      - name: Configure system
        shell: su buildbot -c "sh -e {0}"
        working-directory: openwrt
        run: |
          echo CONFIG_ALL_KMODS=y >> .config
          echo CONFIG_DEVEL=y >> .config
          echo CONFIG_AUTOREMOVE=y >> .config
          echo CONFIG_CCACHE=y >> .config

          echo "CONFIG_TARGET_${{ env.TARGET }}=y" >> .config
          echo "CONFIG_TARGET_${{ env.TARGET }}_${{ env.SUBTARGET }}=y" >> .config

          make defconfig

      - name: Build tools
        shell: su buildbot -c "sh -e {0}"
        working-directory: openwrt
        run: make tools/quilt/compile -j$(nproc) BUILD_LOG=1 || ret=$? .github/workflows/scripts/show_build_failures.sh

      - name: Refresh Kernel patches
        shell: su buildbot -c "sh -e {0}"
        working-directory: openwrt
        run: |
          make target/linux/refresh V=s

          . .github/workflows/scripts/ci_helpers.sh

          if git diff --name-only --exit-code; then
            success "Kernel patches for ${{ env.TARGET }}/${{ env.SUBTARGET }} seems ok"
          else
            err "Kernel patches for ${{ env.TARGET }}/${{ env.SUBTARGET }} require refresh. (run 'make target/linux/refresh' and force push this pr)"
            exit 1
          fi