[ci skip] Revert "Drop libmysql build from nightly" as PDO still accepts libmysql (#8664)

Author: Girgias

azure-pipelines.yml

@@ -66,6 +66,10 @@ jobs:
         configurationName: DEBUG_NTS_REPEAT
         configurationParameters: '--enable-debug --disable-zts'
         runTestsParameters: '--repeat 2'
+    - template: azure/libmysqlclient_job.yml
+      parameters:
+        configurationName: LIBMYSQLCLIENT_DEBUG_NTS
+        configurationParameters: '--enable-debug --disable-zts'
     - template: azure/job.yml
       parameters:
         configurationName: VARIATION_DEBUG_ZTS

azure/libmysqlclient_job.yml

@@ -0,0 +1,37 @@
+parameters:
+  configurationName: ''
+  configurationParameters: ''
+  runTestsParameters: ''
+  timeoutInMinutes: 60
+
+jobs:
+  - job: ${{ parameters.configurationName }}
+    timeoutInMinutes: ${{ parameters.timeoutInMinutes }}
+    pool:
+      vmImage: 'ubuntu-20.04'
+    steps:
+    - script: |
+        sudo apt-get update -y | true
+        sudo apt install bison re2c
+      displayName: 'APT'
+    - script: |
+        set -o
+        sudo service mysql start
+        mysql -uroot -proot -e "CREATE DATABASE IF NOT EXISTS test"
+        # Ensure local_infile tests can run.
+        mysql -uroot -proot -e "SET GLOBAL local_infile = true"
+      displayName: 'Setup MySQL server'
+    # Does not support caching_sha2_auth :(
+    #- template: libmysqlclient_test.yml
+    #  parameters:
+    #    configurationName: ${{ parameters.configurationName }} - MySQL 5.6.49
+    #    libmysql: mysql-5.6.49-linux-glibc2.12-x86_64.tar.gz
+    - template: libmysqlclient_test.yml
+      parameters:
+        configurationName: ${{ parameters.configurationName }} - MySQL 5.7.38
+        libmysql: mysql-5.7.38-linux-glibc2.12-x86_64.tar.gz
+    - template: libmysqlclient_test.yml
+      parameters:
+        configurationName: ${{ parameters.configurationName }} - MySQL 8.0.27
+        libmysql: mysql-8.0.27-linux-glibc2.12-x86_64.tar.xz
+        configurationParameters: ${{ parameters.configurationParameters }} --enable-werror

azure/libmysqlclient_test.yml

@@ -0,0 +1,49 @@
+parameters:
+  configurationName: ''
+  configurationParameters: ''
+  libmysql: ''
+
+steps:
+  - script: |
+      set -e
+      LIBMYSQL=${{ parameters.libmysql }}
+      MYSQL_BASE=${LIBMYSQL%%-linux-*}
+      MYSQL_VERSION=${MYSQL_BASE#*-}
+      MYSQL_DIR=$HOME/$MYSQL_BASE
+      mkdir -p $MYSQL_DIR
+      URL=https://cdn.mysql.com/Downloads/MySQL-${MYSQL_VERSION%.*}/$LIBMYSQL
+      wget -nv $URL
+      tar -xf $LIBMYSQL --strip-components=1 -C $MYSQL_DIR
+      PDO_MYSQL=${MYSQL_DIR}
+      ./buildconf --force
+      ./configure ${{ parameters.configurationParameters }} \
+          --enable-option-checking=fatal \
+          --disable-all \
+          --enable-pdo \
+          --with-pdo-mysql=${PDO_MYSQL}
+      make clean
+      make -j$(/usr/bin/nproc) >/dev/null
+    displayName: 'Build ${{ parameters.configurationName }}'
+    condition: or(succeeded(), failed())
+  - script: |
+      export PDO_MYSQL_TEST_DSN="mysql:host=127.0.0.1;dbname=test"
+      export PDO_MYSQL_TEST_HOST=127.0.0.1
+      export PDO_MYSQL_TEST_USER=root
+      export PDO_MYSQL_TEST_PASS=root
+      export TEST_PHP_JUNIT=junit.xml
+      export REPORT_EXIT_STATUS=no
+      rm -rf junit.xml | true
+      sapi/cli/php run-tests.php -P -q \
+          -g FAIL,XFAIL,BORK,WARN,LEAK,XLEAK,SKIP \
+          --offline --show-diff --show-slow 1000 --set-timeout 120 \
+          ext/pdo_mysql
+    displayName: 'Test ${{ parameters.configurationName }}'
+    condition: or(succeeded(), failed())
+  - task: PublishTestResults@2
+    inputs:
+      testResultsFormat: 'JUnit'
+      testResultsFiles: junit.xml
+      testRunTitle: '${{ parameters.configurationName }}'
+      failTaskOnFailedTests: true
+    displayName: 'Export ${{ parameters.configurationName }} Results'
+    condition: or(succeeded(), failed())