Add support for GitLab CI

[q0rban]

Here's a start. Currently the kernel tests and behat tests fail.

stages:
  - build
  - test

# Template for composer managed dirs.
.composer_paths: &composer_paths
  - vendor
  - web/core
  - web/modules
  - web/themes
  - web/profiles
  - web/libraries

## Build the drupal8ci testing environment.
drupal8ci:build:
  stage: build
  image: juampynr/drupal8ci:latest
  services:
    - mariadb:10.3
    - selenium/standalone-chrome-debug:3.7.1-beryllium
  variables:
    MYSQL_ALLOW_EMPTY_PASSWORD: 1
  script:
    - composer install
    - robo install:dependencies
  # It'd be nice to use cache, but it's proven unreliable.
  artifacts:
    paths: *composer_paths

## Job to run Unit and Kernel tests.
drupal8ci:unit_kernel_tests:
  stage: test
  dependencies:
    - drupal8ci:build
  script:
    - apache2-foreground&
    - robo setup:drupal || true
    - cp .circleci/config/phpunit.xml web/core/
    - mkdir -p artifacts/phpunit
    - chmod -R 777 artifacts
    - cd web
    - sudo -E -u www-data ../vendor/bin/phpunit -c core --debug --verbose --log-junit ../artifacts/phpunit/phpunit.xml modules/custom
  artifacts:
    paths:
      - artifacts/phpunit

## Job to run the update path and Behat tests.
drupal8ci:behat_tests:
  stage: test
  dependencies:
    - drupal8ci:build
  script:
    - robo setup:drupal || true
    - cd web
    # For a quick start, set the following environment variable to a URL that contains
    # a database dump. Alternativelly, give CircleCI access to your development environment
    # and use Drush site aliases to run `drush sql-sync`.
    - wget -O dump.sql $DB_DUMP_URL
    - ../vendor/bin/drush sql-cli < dump.sql
    - ../vendor/bin/drush updatedb -y -v
    - ../vendor/bin/drush config-import -y -v
    - apache2-foreground&
    - cp .circleci/config/behat.yml tests/
    - chown -R www-data:www-data /var/www/html/web/sites/default/files
    - vendor/bin/behat --verbose -c tests/behat.yml
  artifacts:
    paths:
      - artifacts/behat

## Job to check coding standards.
drupal8ci:code_sniffer:
  stage: test
  dependencies:
    - drupal8ci:build
  script:
    - vendor/bin/phpcs --config-set installed_paths vendor/drupal/coder/coder_sniffer
    - mkdir -p artifacts/phpcs
    - vendor/bin/phpcs --standard=Drupal --report=junit --report-junit=artifacts/phpcs/phpcs.xml web/modules/custom
    - vendor/bin/phpcs --standard=DrupalPractice --report=junit --report-junit=artifacts/phpcs/phpcs.xml web/modules/custom
  artifacts:
    paths:
      - artifacts/phpcs/phpcs.xml

## Job to check test coverage.
drupal8ci:code_coverage:
  stage: test
  dependencies:
    - drupal8ci:build
  variables:
    SIMPLETEST_BASE_URL: "http://localhost"
    SIMPLETEST_DB: "sqlite://localhost//tmp/drupal.sqlite"
    BROWSERTEST_OUTPUT_DIRECTORY: "/var/www/html/sites/simpletest"
  script:
    - robo setup:drupal || true
    - cp .circleci/config/phpunit.xml web/core/
    - mkdir -p artifacts/coverage-xml
    - mkdir -p artifacts/coverage-html
    - chmod -R 777 artifacts
    - cd web
    - timeout 60m sudo -E -u www-data ../vendor/bin/phpunit --verbose --debug -c core --coverage-xml ../artifacts/coverage-xml --coverage-html ../artifacts/coverage-html --testsuite nonfunctional modules/custom
  artifacts:
    paths:
      - artifacts

[juampynr]

Awesome! Feel free to create a pull request and integrate status messages. I normally first play around at https://github.com/juampynr/d8cidemo and then once I have it working, move the relevant files to this repository.

[q0rban]

Figured out that some of the issues I'm running into are due to gitlab using mariadb as the MySQL hostname instead of localhost or 127.0.0.1. Unfortunately that may mean some refactoring of things like the RoboFile and phpunit.xml.