sudo: true
dist: trusty
language: python
addons:
  apt:
    packages:
      - expect-dev # for unbuffer
env:
  global:
  - ETCDVERSION=3.0.17 ZKVERSION=3.4.11 CONSULVERSION=0.7.4
  - PYVERSIONS="2.7 3.5 3.6"
  - EXCLUDE_BEHAVE="3.5"
  - BOTO_CONFIG=/doesnotexist
matrix:
  include:
  - python: "3.5"
    env: TEST_SUITE="python setup.py"
  - python: "3.6"
    env: DCS="etcd" TEST_SUITE="behave"
  - python: "3.6"
    env: DCS="exhibitor" TEST_SUITE="behave"
  - python: "3.6"
    env: DCS="consul" TEST_SUITE="behave"
  - python: "3.6"
    env: DCS="kubernetes" TEST_SUITE="behave"
branches:
  only:
  - master
  - /^v\d+\.\d+(\.\d+)?$/
cache:
  directories:
  - $HOME/mycache
before_cache:
- |
  rm -fr $HOME/mycache/python*
  for pv in $PYVERSIONS; do
      if [[ $TEST_SUITE != "behave" || $pv != $EXCLUDE_BEHAVE ]]; then
          fpv=$(basename $(readlink $HOME/virtualenv/python${pv}))
          mv $HOME/virtualenv/${fpv} $HOME/mycache/${fpv}
      fi
  done
install:
  - |
    set -e

    if [[ $TEST_SUITE == "behave" ]]; then
        function get_consul() {
            CC=~/mycache/consul_${CONSULVERSION}
            if [[ ! -x $CC ]]; then
                curl -L https://releases.hashicorp.com/consul/${CONSULVERSION}/consul_${CONSULVERSION}_linux_amd64.zip \
                    | gunzip > $CC
                [[ ${PIPESTATUS[0]} == 0 ]] || return 1
                chmod +x $CC
            fi
            ln -s $CC consul
        }

        function get_etcd() {
            EC=~/mycache/etcd_${ETCDVERSION}
            if [[ ! -x $EC ]]; then
                curl -L https://github.com/coreos/etcd/releases/download/v${ETCDVERSION}/etcd-v${ETCDVERSION}-linux-amd64.tar.gz \
                    | tar xz -C . --strip=1 --wildcards --no-anchored etcd
                [[ ${PIPESTATUS[0]} == 0 ]] || return 1
                mv etcd $EC
            fi
            ln -s $EC etcd
        }

        function get_kubernetes() {
            wget -O localkube "https://storage.googleapis.com/minikube/k8sReleases/v1.7.0/localkube-linux-amd64"
            chmod +x localkube
            sudo nohup ./localkube --logtostderr=true --enable-dns=false > localkube.log 2>&1 &

            echo "Waiting for localkube to start..."
            if ! timeout 120 sh -c "while ! curl -ks http://127.0.0.1:8080/ >/dev/null; do sleep 1; done"; then
                sudo cat localkube.log
                echo "localkube did not start"
                exit 1
            fi
            echo "Check certificate permissions"
            sudo chmod 644 /var/lib/localkube/certs/*
            sudo ls -altr /var/lib/localkube/certs/

            echo "Set up .kube/config"
            mkdir ~/.kube
            echo -e "apiVersion: v1\nclusters:\n- cluster:\n    certificate-authority: /var/lib/localkube/certs/ca.crt\n    server: https://127.0.0.1:8443\n  name: local\ncontexts:\n- context:\n    cluster: local\n    user: myself\n  name: local\ncurrent-context: local\nkind: Config\npreferences: {}\nusers:\n- name: myself\n  user:\n    client-certificate: /var/lib/localkube/certs/apiserver.crt\n    client-key: /var/lib/localkube/certs/apiserver.key\n" > ~/.kube/config
        }

        function get_exhibitor() {
            ZC=~/mycache/zookeeper-${ZKVERSION}
            if [[ ! -d $ZC ]]; then
                curl -L http://www.apache.org/dist/zookeeper/zookeeper-${ZKVERSION}/zookeeper-${ZKVERSION}.tar.gz | tar xz
                [[ ${PIPESTATUS[0]} == 0 ]] || return 1
                mv zookeeper-${ZKVERSION}/conf/zoo_sample.cfg zookeeper-${ZKVERSION}/conf/zoo.cfg
                mv zookeeper-${ZKVERSION} $ZC
            fi
            $ZC/bin/zkServer.sh start
            # following lines are 'emulating' exhibitor REST API
            while true; do
                echo -e 'HTTP/1.0 200 OK\nContent-Type: application/json\n\n{"servers":["127.0.0.1"],"port":2181}' \
                    | nc -l 8181 &> /dev/null
            done&
        }

        attempt_num=1
        until get_${DCS}; do
            [[ $attempt_num -ge 3 ]] && exit 1
            echo "Attempt $attempt_num failed! Trying again in $attempt_num seconds..."
            sleep $(( attempt_num++ ))
        done
    fi

    for pv in $PYVERSIONS; do
        if [[ $TEST_SUITE != "behave" || $pv != $EXCLUDE_BEHAVE ]]; then
            fpv=$(basename $(readlink $HOME/virtualenv/python$pv))
            if [[ -d ~/mycache/${fpv} ]]; then
                mv ~/virtualenv/${fpv} ~/virtualenv/${fpv}.bckp
                mv ~/mycache/${fpv} ~/virtualenv/${fpv}
            fi
            source ~/virtualenv/python${pv}/bin/activate
            # explicitly install all needed python modules to cache them
            for p in '-r requirements.txt' 'psycopg2-binary behave codacy-coverage coverage coveralls flake8 mock pytest-cov pytest setuptools'; do
                pip install $p --upgrade
            done
        fi
    done
script:
  - |
    for pv in $PYVERSIONS; do
        if [[ $TEST_SUITE == "behave" && $pv == $EXCLUDE_BEHAVE ]]; then
            continue
        fi

        source ~/virtualenv/python${pv}/bin/activate

        if [[ $TEST_SUITE != "behave" ]]; then
            echo Running unit tests using python${pv}
            unbuffer $TEST_SUITE test
            $TEST_SUITE flake8
        elif [[ $pv != $EXCLUDE_BEHAVE ]]; then
            echo Running acceptance tests using python${pv}
            if ! PATH=.:/usr/lib/postgresql/9.6/bin:$PATH unbuffer $TEST_SUITE; then
                # output all log files when tests are failing
                grep . features/output/*_failed/*postgres?.*
                exit 1
            fi
        fi
    done

    set +e
after_success:
  # before_cache is executed earlier than after_success, so we need to restore one of virtualenv directories
  - fpv=$(basename $(readlink $HOME/virtualenv/python3.6)) && mv $HOME/mycache/${fpv} $HOME/virtualenv/${fpv}
  - coveralls
  - if [[ $TEST_SUITE != "behave" ]]; then python-codacy-coverage -r coverage.xml; fi
  - if [[ $DCS == "exhibitor" ]]; then ~/mycache/zookeeper-${ZKVERSION}/bin/zkServer.sh stop; fi
  - sudo kill $(jobs -p)