version: 2
jobs:
  build:
    docker:
      - image: houqp/kobase:0.0.5
        environment:
          EMULATE_READER: 1
          # this is for shellcheck 0.4.5 and lower; can be removed for 0.4.6
          LC_ALL: en_US.UTF8
    steps:
      - checkout
      - restore_cache:
          keys:
            # binary dependencies require {{ arch }} because there are different CPUs in use on the servers
            - deps-{{ arch }}-{{ checksum ".ci/install.sh" }}
      # need to init some stuff first or git will complain when sticking in base cache
      - run: git submodule init base && git submodule update base && pushd base && git submodule init && git submodule update && popd
      # we can't use command output directly for cache check so we write it to git-rev-base
      - run: pushd base && git_rev_base=$(git describe HEAD) && popd && echo $git_rev_base && echo $git_rev_base >git-rev-base
      - restore_cache:
          keys:
            - build-{{ arch }}-{{ checksum "git-rev-base" }}
      - run: echo 'export PATH=${HOME}/bin:${PATH}' >> $BASH_ENV
      - run:
          name: setup
          command: .ci/before_install.sh
      - run:
          name: install
          command: .ci/install.sh
      - run:
          name: fetch
          command: .ci/fetch.sh
      - run:
          name: check
          command: .ci/check.sh
      - run:
          name: build
          command: .ci/build.sh
      - run:
          name: test
          command: .ci/test.sh
      - run:
          name: cleanup
          command: .ci/after_success.sh

      - run:
          name: clean up cache
          command: rm -frv ./base/build/*/{spec,cache/*}
      - save_cache:
          key: build-{{ arch }}-{{ checksum "git-rev-base" }}
          paths:
            - "/home/ko/.ccache"
            - "base"
      - save_cache:
          key: deps-{{ arch }}-{{ checksum ".ci/install.sh" }}
          paths:
            - "/home/ko/bin"
            - "/home/ko/.luarocks"
            # compiled luarocks binaries
            - "install"