checkpatch.yml

name: "CheckPatch"
on:
  push:
    branches-ignore:
      - 'archived/**'    # previous branches
      - 't/**'           # TopGit tree
      - 'net'            # part of the TopGit tree
      - 'net-next'       # part of the TopGit tree
      - 'for-review'     # part of the TopGit tree
      - 'for-review-net' # part of the TopGit tree
    tags:
      - 'patchew/**'     # patchew is using tags

env:
  CURL_OPT: "--no-progress-meter --connect-timeout 30 --retry 20 --retry-delay 10"
  PW: "https://patchwork.kernel.org/api/1.2"
  CHECKPATCH_RESULTS: "./checkpatch-results.txt"
  CHECKPATCH_DETAILS: "./checkpatch-details.txt"
  SHELLCHECK_RESULTS: "./shellcheck-results.txt"
  SHELLCHECK_DETAILS: "./shellcheck-details.txt"

permissions: {}

jobs:
  checkpatch:
    name: "Checkpatch"
    # for others or for the official repo but only commits from patchew
    if: "github.repository_owner != 'multipath-tcp' || (startswith(github.ref, 'refs/tags/patchew/') && contains(github.event.head_commit.message, 'Message-Id: '))"
    runs-on: ubuntu-latest
    permissions:
      contents: read # to fetch code (actions/checkout)

    steps:
      - name: "Checkout"
        uses: actions/checkout@v4
        with:
          fetch-depth: 0 ## to make sure a mentioned commit exists

      - name: "Checkpatch"
        uses: multipath-tcp/mptcp-upstream-validate-export-action@main
        with:
          each_commit: true
          checkpatch: true
          debug: ${{ secrets.BUILD_ACTION_DEBUG }}

      - name: "Publish details"
        if: always()
        run: |
          if [ -s "${{ env.CHECKPATCH_DETAILS }}" ]; then
            echo '## CheckPatch' >> ${GITHUB_STEP_SUMMARY}
            cat "${{ env.CHECKPATCH_DETAILS }}" >> ${GITHUB_STEP_SUMMARY}
          fi
          if [ -s "${{ env.SHELLCHECK_DETAILS }}" ]; then
            echo '## ShellCheck' >> ${GITHUB_STEP_SUMMARY}
            cat "${{ env.SHELLCHECK_DETAILS }}" >> ${GITHUB_STEP_SUMMARY}
          fi

      - name: "Artifacts"
        uses: actions/upload-artifact@v4
        with:
          name: results
          path: |
            ${{ env.CHECKPATCH_RESULTS }}
            ${{ env.SHELLCHECK_RESULTS }}

      - name: "Artifacts"
        uses: actions/upload-artifact@v4
        with:
          name: details
          path: |
            ${{ env.CHECKPATCH_DETAILS }}
            ${{ env.SHELLCHECK_DETAILS }}

  notif:
    name: "Notifications"
    needs: checkpatch
    # only for the official repo (patchew)
    if: github.repository_owner == 'multipath-tcp' && startswith(github.ref, 'refs/tags/patchew/') && (needs.checkpatch.result == 'success' || needs.checkpatch.result == 'failure')
    runs-on: ubuntu-latest
    steps:
      - name: "Get Results"
        uses: actions/download-artifact@v4
        with:
          name: results

      - name: "Patchwork"
        run: |
          # $1: mid, $2: status, $3: desc, $4: context
          _send() { local check_url
            check_url="$(curl "${URL_PW}${1}" | jq -r 'last(.[].checks)')"
            if [ -z "${check_url}" ] || [ "${check_url}" = "null" ]; then
              echo "URL not found: '${check_url}' '${URL_PW}${1}'"
              return 1
            fi

            curl ${CURL_OPT} \
              -X POST \
              -H "Authorization: Token ${{ secrets.PW_TOKEN }}" \
              -F "state=${2}" \
              -F "target_url=${URL_GH}" \
              -F "context=${4}" \
              -F "description=${3}" \
              "${check_url}" | jq '.'
          }

          FIRST=1
          send() { local i
            # patches can take a bit of time to appear: retry the first time
            if [ "${FIRST}" = "1" ]; then
              FIRST=0

              for i in $(seq 45); do
                if _send "${@}"; then
                  echo "Successful sent after ${i} attempts"
                  return 0
                fi
                sleep 1m
              done

              curl "${URL_PW}${1}"
              return 1
            else
              _send "${@}"
            fi
          }

          # $1: file, $2: context
          parse_results() {
            if [ ! -s "${1}" ]; then
              echo "Strange, no results, please check why"
              return 1
            fi

            while read -r mid status desc; do
              echo "Sending: '${mid}' '${status}' '${desc}' '${2}'"
              send "${mid}" "${status}" "${desc}" "${2}"
            done < "${1}"
          }

          rc=0
          parse_results "${CHECKPATCH_RESULTS}" "checkpatch" || rc=1
          parse_results "${SHELLCHECK_RESULTS}" "shellcheck" || rc=1
          exit ${rc}

        env:
          URL_GH: "${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
          URL_PW: "${{ env.PW }}/patches/?project=mptcp&msgid="

  status:
    name: "Status"
    needs: checkpatch
    # for others, to report an error if patches were not OK
    if: github.repository_owner != 'multipath-tcp'
    runs-on: ubuntu-latest
    steps:
      - name: "Get Results"
        uses: actions/download-artifact@v4
        with:
          name: results

      - name: "Set exit status"
        run: |
          # $1: result file, $2: context
          check() {
            if [ ! -s "${1}" ]; then
              echo "Strange, no results, please check why"
              exit 1
            fi

            if awk '{ if ($2 != "success") exit 1 }' "${1}"; then
              echo " *** Everything OK with ${2}, good job!"
              return 0
            fi

            echo " *** ${2} detected some issues:"
            cat "${1}"
            echo " *** End of the issues detected by ${2}"

            return 1
          }

          echo
          rc=0
          check "${CHECKPATCH_RESULTS}" "CheckPatch" || rc=1
          check "${SHELLCHECK_RESULTS}" "ShellCheck" || rc=1
          [ ${rc} -eq 0 ] && exit 0

          echo
          echo "Please check the summary page for more details about these issues:"
          echo "  ${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}"
          exit ${rc}