[ci] re-organize + attempt fixing mariadb install

Author: kares

.travis.yml

@@ -1,4 +1,3 @@
-language: ruby
 sudo: false
 dist: bionic
 
@@ -7,6 +6,16 @@ services:
 addons:
   postgresql: 9.4
 
+install:
+# to fix this issue: https://travis-ci.community/t/mariadb-10-1-fails-to-install-on-xenial/3151/3
+- mysql -u root -e 'CREATE USER IF NOT EXISTS travis@localhost; GRANT ALL ON *.* TO travis@localhost;'
+
+language: ruby
+rvm:
+  - jruby-9.1.16.0
+jdk:
+  - openjdk8
+
 bundler_args: --without development
 script: bundle exec rake ${TEST_PREFIX}test_$DB
 before_install:
@@ -38,10 +47,7 @@ before_script:
     psql  -c "create database activerecord_unittest;" -U postgres && \
     psql  -c "create database activerecord_unittest2;" -U postgres \
     || true
-rvm:
-  - jruby-9.1.16.0
-jdk:
-  - openjdk8
+
 env:
   - DB=mysql2 PREPARED_STATEMENTS=false
   - DB=mysql2 PREPARED_STATEMENTS=true
@@ -84,10 +90,10 @@ matrix:
       env: DB=sqlite3
     # testing against MariaDB
     - addons:
-        mariadb: '10.0'
+        mariadb: 10.1
       env: DB=mariadb PREPARED_STATEMENTS=false
     - addons:
-        mariadb: '10.1'
+        mariadb: 10.3
       env: DB=mariadb PREPARED_STATEMENTS=true
     # Rails test-suite :
     - env: DB=mysql2     TEST_PREFIX="rails:" AR_VERSION="v5.0.7.1" # PS off by default