MNT use shared travis config

.travis.yml

@@ -1,66 +1,10 @@
-language: php
+# https://docs.travis-ci.com/user/build-config-imports/
+version: ~> 1.0
 
-dist: trusty
-
-before_install:
- - sudo apt-get update
- - sudo apt-get install chromium-chromedriver
+import:
+  - silverstripe/silverstripe-travis-shared:config/provision/standard-jobs-behat.yml
 
 env:
   global:
     - COMPOSER_ROOT_VERSION="2.3.x-dev"
-    - DISPLAY=":99"
-    - XVFBARGS=":99 -ac -screen 0 1024x768x16"
-    - SS_BASE_URL="http://localhost:8080/"
-    - SS_ENVIRONMENT_TYPE="dev"
-
-matrix:
-  include:
-    - php: 5.6
-      env: DB=MYSQL INSTALLER_VERSION=~4.4.0@dev PHPCS_TEST=1 PHPUNIT_TEST=1
-    - php: 7.0
-      env: DB=PGSQL INSTALLER_VERSION=~4.4.0@dev PHPUNIT_TEST=1
-    - php: 7.1
-      env: DB=MYSQL INSTALLER_VERSION=~4.4.0@dev BEHAT_TEST=1
-    - php: 7.2
-      env: DB=MYSQL INSTALLER_VERSION=~4.4.0@dev PHPUNIT_TEST=1
-    - php: 7.2
-      env: DB=MYSQL INSTALLER_VERSION=4.x-dev BEHAT_TEST=1
-    - php: 7.3
-      env: DB=MYSQL INSTALLER_VERSION=~4.4.0@dev PHPUNIT_TEST=1
-
-before_script:
-  # Extra $PATH
-  - export PATH=/usr/lib/chromium-browser/:$PATH
-
-  # Init PHP
-  - phpenv rehash
-  - phpenv config-rm xdebug.ini
-  - echo 'memory_limit=3G' >> ~/.phpenv/versions/$(phpenv version-name)/etc/conf.d/travis.ini
-  # install $COMPOSER_VERSION if defined, otherwise use Composer v1 with PHP <= 7.3, Composer v2 for >= 7.3
-  - if [ $COMPOSER_VERSION ] ; then composer self-update --$COMPOSER_VERSION ; elif [ $(php -r 'echo (int) version_compare(phpversion(), "7.3.0", "<=");') = "1" ] ; then composer self-update --1; else composer self-update --2; fi
-
-  # Install composer
-  - composer validate
-  - composer require silverstripe/installer:"$INSTALLER_VERSION" silverstripe/recipe-testing:^1 --no-update
-  - if [[ $DB == PGSQL ]]; then composer require --no-update silverstripe/postgresql:2.2.x-dev; fi
-  - composer install --prefer-source --no-interaction --no-progress --no-suggest --optimize-autoloader --verbose --profile
-
-  # Behat bootstrapping
-  - if [[ $BEHAT_TEST ]]; then mkdir artifacts; fi
-  - if [[ $BEHAT_TEST ]]; then cp composer.lock artifacts/; fi
-  - if [[ $BEHAT_TEST ]]; then sh -e /etc/init.d/xvfb start; sleep 3; fi
-  - if [[ $BEHAT_TEST ]]; then (chromedriver > artifacts/chromedriver.log 2>&1 &); fi
-  - if [[ $BEHAT_TEST ]]; then (vendor/bin/serve --bootstrap-file vendor/silverstripe/cms/tests/behat/serve-bootstrap.php &> artifacts/serve.log &); fi
-
-script:
-  - if [[ $PHPUNIT_TEST ]]; then vendor/bin/phpunit; fi
-  - if [[ $PHPUNIT_COVERAGE_TEST ]]; then phpdbg -qrr vendor/bin/phpunit --coverage-clover=coverage.xml; fi
-  - if [[ $PHPCS_TEST ]]; then vendor/bin/phpcs src tests *.php --ignore=host-map.php; fi
-  - if [[ $BEHAT_TEST ]]; then vendor/bin/behat @subsites; fi
-
-after_success:
-  - if [[ $PHPUNIT_COVERAGE_TEST ]]; then bash <(curl -s https://codecov.io/bash) -f coverage.xml; fi
-
-after_failure:
-  - if [[ $BEHAT_TEST ]]; then php ./vendor/silverstripe/framework/tests/behat/travis-upload-artifacts.php --if-env BEHAT_TEST,ARTIFACTS_BUCKET,ARTIFACTS_KEY,ARTIFACTS_SECRET --target-path $TRAVIS_REPO_SLUG/$TRAVIS_BUILD_ID/$TRAVIS_JOB_ID --artifacts-base-url https://s3.amazonaws.com/$ARTIFACTS_BUCKET/ --artifacts-path ./artifacts/; fi
+    - BEHAT_SUITE="@subsites"