ci: support cmake in shippable

          git rebase origin/${PULL_REQUEST_BASE_BRANCH};

        fi

      - source zephyr-env.sh

      - cd $ZEPHYR_BASE/scripts

      - mkdir build && cd build

      - cmake .. && make

      - export PREBUILT_HOST_TOOLS=$(pwd)

      - cd $ZEPHYR_BASE

      - ccache -c -s --max-size=2000M

      - make host-tools

      - export PREBUILT_HOST_TOOLS=${ZEPHYR_BASE}/bin

      - >

          if [ "$MATRIX_BUILD" = "3" -a "$IS_PULL_REQUEST" = "true" ]; then

            export COMMIT_RANGE=origin/${PULL_REQUEST_BASE_BRANCH}..HEAD

            echo "Building a Pull Request";

            echo "- Building Documentation";

            echo "Commit range:" ${COMMIT_RANGE}

            pushd doc

            make htmldocs > doc.warnings 2>&1;

            if [ -s doc.warnings ]; then

              echo " => New documentation warnings/errors";

            fi;

            popd

            echo "- Verify commit message, coding style, doc build";

            ./scripts/ci/check-compliance.py --commits ${COMMIT_RANGE} || true;

          fi;