.gitlab-ci.yml

# cache key for a ref on each job means that this job will check the cache for
# a directory image keyed on that thing, and if it exists, it will load that before
# executing the script. then it will save the image back under the same key when the job
# succeeds. so we copy-paste it all over

stages:
  - prereqs
  - build
  - test

# obtain / check for dependencies
deps:
  stage: prereqs
  script:
    # check for required apt packages
    - dpkg-query -W libstdc++-8-dev libopencv-dev libdispatch0 libdispatch-dev valgrind
    # check for required pip packages
    - python -c "import lit"
    # build other prereqs
    - ./xgboost/get.sh
    - mkdir build install
    - cd build
    - ../benchmark/setup.sh
  cache:
      key: "$CI_PIPELINE_ID"
      paths:
          - xgboost/root/lib
          - xgboost/root/include
          - xgboost/root/rabit/include
          - xgboost/root/dmlc-core/include
          - build
          - install


# template for building and testing atjit
.atjit_test:
    stage: build
    script:
        - cd build
        - cmake -G "Unix Makefiles" ${CUSTOM_LLVM} -DCMAKE_BUILD_TYPE=${ATJIT_BUILD_TYPE} -DBENCHMARK=ON -DBENCHMARK_DIR=`pwd`/benchmark/install -DATJIT_EXAMPLE=ON -DCMAKE_INSTALL_PREFIX=../install -DPOLLY_KNOBS=OFF ..
        - make -j 4
        - make install
        - make check
    dependencies:
      - deps
    cache:
        key: "$CI_PIPELINE_ID"
        paths:
            - xgboost/root/lib
            - xgboost/root/include
            - xgboost/root/rabit/include
            - xgboost/root/dmlc-core/include
            - build
            - install
        policy: pull  # don't push changes to the cache from this job

atjit_release:
  variables:
    ATJIT_BUILD_TYPE: "Release"
    CUSTOM_LLVM: ""
  extends: .atjit_test

atjit_debug:
  variables:
    ATJIT_BUILD_TYPE: "Debug"
    CUSTOM_LLVM: ""
  extends: .atjit_test

# TODO: implement method to build and test ./get-llvm.sh script.
# I can't recall how to use gitlab's caching stuff to save state between
# stages. Ideally we would just move to Docker to simplify this.