.travis.yml and .drone.yml to make automatic CI tests work

Signed-off-by: Jonas Sulzer <jonas@violoncello.ch>

.travis.yml

@@ -0,0 +1,58 @@
+language: php
+php:
+  - 7.1
+  - 7.2
+  - 7.3
+
+env:
+  global:
+    - APP_NAME=user_external
+    - PHP_COVERAGE=FALSE
+  matrix:
+    - DB=sqlite SERVER=nextcloud/travis_ci/master SERVER_BRANCH=master
+    - DB=sqlite SERVER=nextcloud/travis_ci/master SERVER_BRANCH=stable15
+    - DB=sqlite SERVER=nextcloud/travis_ci/master SERVER_BRANCH=stable14
+    - DB=mysql SERVER=nextcloud/travis_ci/master SERVER_BRANCH=master PHP_COVERAGE=TRUE
+    - DB=mysql SERVER=nextcloud/travis_ci/master SERVER_BRANCH=stable15
+    - DB=mysql SERVER=nextcloud/travis_ci/master SERVER_BRANCH=stable14
+    - DB=pgsql SERVER=nextcloud/travis_ci/master SERVER_BRANCH=master
+    - DB=pgsql SERVER=nextcloud/travis_ci/master SERVER_BRANCH=stable15
+    - DB=pgsql SERVER=nextcloud/travis_ci/master SERVER_BRANCH=stable14
+
+matrix:
+  fast_finish: true
+
+branches:
+  only:
+    - master
+    - /^stable\d+(\.\d+)?$/
+
+before_install:
+  - sudo apt-get -qq update
+  - sudo apt-get install -y libxml2-utils
+  - composer install
+  - wget https://raw.githubusercontent.com/$SERVER/before_install.sh
+  - . ./before_install.sh "$APP_NAME" "$SERVER_BRANCH" "$DB"
+  - cd ../core || cd ../server
+  - php occ app:enable $APP_NAME
+
+before_script:
+  # Test lint
+  - cd apps/$APP_NAME
+  - find . -name \*.php -exec php -l "{}" \;
+
+script:
+  - ant test
+
+  # Check info.xml schema validity
+  - wget https://apps.nextcloud.com/schema/apps/info.xsd
+  - xmllint appinfo/info.xml --schema info.xsd --noout
+  - rm info.xsd
+
+  # Run phpunit tests
+  - cd tests
+  - phpunit --configuration phpunit.xml
+
+  # Create coverage report
+  - sh -c "if [ '$PHP_COVERAGE' != 'FALSE' ]; then wget https://scrutinizer-ci.com/ocular.phar; fi"
+  - sh -c "if [ '$PHP_COVERAGE' != 'FALSE' ]; then php ocular.phar code-coverage:upload --format=php-clover clover.xml; fi"