CI: Add MariaDB 10.11 LTS to the build matrix

.github/workflows/build.yml

@@ -28,6 +28,8 @@ jobs:
           # db: on Linux, ci/setup.sh installs the specified packages
           # db: on MacOS, installs a Homebrew package use "[email protected]" to specify a version
 
+          - {os: ubuntu-22.04, ruby: '3.0', db: mariadb10.11}
+          - {os: ubuntu-22.04, ruby: '2.7', db: mariadb10.11}
           - {os: ubuntu-22.04, ruby: '3.0', db: mariadb10.6}
           - {os: ubuntu-20.04, ruby: '2.7', db: mariadb10.6}
           - {os: ubuntu-20.04, ruby: '2.7', db: mysql80}

ci/mariadb1011.sh

@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+set -eux
+
+apt purge -qq '^mysql*' '^libmysql*'
+rm -fr /etc/mysql
+rm -fr /var/lib/mysql
+
+apt-key add support/C74CD1D8.asc
+add-apt-repository "deb https://downloads.mariadb.com/MariaDB/mariadb-10.11/repo/ubuntu $(lsb_release -cs) main"
+apt install -y -o Dpkg::Options::='--force-confnew' mariadb-server-10.11 libmariadb-dev

ci/setup.sh

@@ -54,6 +54,12 @@ if [[ -n ${GITHUB_ACTIONS-} && -n ${DB-} && x$DB =~ ^xmariadb10.6 ]]; then
   CHANGED_PASSWORD_BY_RECREATE=true
 fi
 
+# Install MariaDB 10.11 if DB=mariadb10.11
+if [[ -n ${GITHUB_ACTIONS-} && -n ${DB-} && x$DB =~ ^xmariadb10.11 ]]; then
+  sudo bash ci/mariadb1011.sh
+  CHANGED_PASSWORD_BY_RECREATE=true
+fi
+
 # Install MySQL/MariaDB if OS=darwin
 if [[ x$OSTYPE =~ ^xdarwin ]]; then
   brew update > /dev/null