stages:
    - build
    - lint
    - test
    - publish
    - deploy
image: python:3.7-alpine

.test-template: &test-template
    stage: test
    services:
        - postgres:11-alpine
    script:
        - python manage.py test
    tags:
        - docker
    variables:
        DATABASE_URL: postgres://django:supersecret@postgres/pysite
        POSTGRES_DB: pysite
        POSTGRES_PASSWORD: supersecret
        POSTGRES_USER: django

build-alpine-3.7:
    stage: build
    image: docker:dind
    script:
        - docker build --build-arg EXTRAS=test,lint -t django:alpine-3.7 -f docker/app/alpine/3.7/Dockerfile .
        - docker save django:alpine-3.7 > django_alpine_py37.tar.gz
    artifacts:
        paths:
            - django_alpine_py37.tar.gz

build-alpine-3.6:
    stage: build
    image: docker:dind
    script:
        - docker build --build-arg EXTRAS=test -t django:alpine-3.6 -f docker/app/alpine/3.6/Dockerfile .
        - docker save django:alpine-3.6 > django_alpine_py36.tar.gz
    artifacts:
        paths:
            - django_alpine_py36.tar.gz

build-stretch-3.7:
    stage: build
    image: docker:dind
    script:
        - docker build --build-arg EXTRAS=test -t django:stretch-3.7 -f docker/app/stretch/3.7/Dockerfile .
        - docker save django:stretch-3.7 > django_stretch_py37.tar.gz
    artifacts:
        paths:
            - django_stretch_py37.tar.gz

build-stretch-3.6:
    stage: build
    image: docker:dind
    script:
        - docker build --build-arg EXTRAS=test -t django:stretch-3.6 -f docker/app/stretch/3.6/Dockerfile .
        - docker save django:stretch-3.6 > django_stretch_py36.tar.gz
    artifacts:
        paths:
            - django_stretch_py36.tar.gz

lint:
    stage: lint
    dependencies:
        - build-alpine-3.7
    image: docker:dind
    before_script:
        - docker load < django_alpine_py37.tar.gz
    script:
        - docker run django:alpine-3.7 flake8
    tags:
        - docker

test-3.7-alpine:
    <<: *test-template
    image: docker:dind
    dependencies:
        - build-alpine-3.7
    before_script:
        - docker load < djano_alpine_py37.tar.gz
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL django:alpine-3.7 python manage.py migrate
    script:
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL -v ./:/app django:alpine-3.7 coverage run --source=api,home,pysite,wiki --branch manage.py test
    after_script:
        - docker run -v ./:/app coverage report
    artifacts:
        paths:
            - .coverage

test-3.6-alpine:
    <<: *test-template
    image: docker:dind
    dependencies:
        - build-alpine-3.6
    before_script:
        - docker load < django_alpine_py36.tar.gz
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL django:alpine-3.6 python manage.py migrate
    script:
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL django:alpine-3.6 python manage.py test

test-3.7-stretch:
    <<: *test-template
    image: docker:dind
    dependencies:
        - build-stretch-3.7
    before_script:
        - docker load < django_stretch_py37.tar.gz
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL django:stretch-3.7 python manage.py migrate
    script:
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL django:stretch-3.7 python manage.py test

test-3.6-stretch:
    <<: *test-template
    image: docker:dind
    dependencies:
        - build-stretch-3.6
    before_script:
        - docker load < django_stretch_py36.tar.gz
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL django:stretch-3.6 python manage.py migrate
    script:
        - docker run --network=host --env DATABASE_URL=$DATABASE_URL django:stretch-3.6 python manage.py test

pages:
    stage: publish
    dependencies:
        - test-3.7-alpine
    before_script:
        - pip install coverage
    script:
        - coverage html --directory=public
    artifacts:
        paths:
            - public
        expire_in: 30 days

push-django:
    image: docker:stable-git
    stage: publish
    script:
        - echo "$DOCKER_PASSWORD" | docker login --username "$DOCKER_USERNAME" --password-stdin
        - docker build -t pythondiscord/django:latest .
        - docker push pythondiscord/django:latest
    only:
        - master
        - django
    tags:
        - docker

deploy:
    stage: deploy
    image: alpine:latest
    before_script:
        - apk add --no-cache openssh-client
        - echo "$DJANGO_DEPLOY_SSH_PRIVATE_KEY" > id_ed25519
        - chmod 400 id_ed25519
    script:
        - ssh -i id_ed25519 -p 583 -o "StrictHostKeyChecking=no" pysite-deploy@jchri.st
    environment:
        name: Django staging
        url: https://pysite.jchri.st
    tags:
        - docker
    only:
        - master
        - django