Mariabackup Partial Backup & Restore helper scripts

Limitations

Prerequisites:

Make sure that on the destination DB innodb_force_recovery is undefined or set to 0 otherwise errors about "read only" tables will interrupt import process

Steps to make partial backup & restore:

Copy config.sample.php to config.php and edit with proper data;
On the SOURCE server make next steps:
Make partial backup using mariabackup, eg. mariadb-backup.exe --backup --target-dir=c:\TEMP\mariadb\ --user=root --password=... --databases="... ..."
Prepare data export, eg. mariadb-backup.exe --prepare --export --target-dir=c:\TEMP\mariadb\
Generate SQL for database and table recreating: mysqldump.exe -u root -p --no-data --databases ... ... > c:\TEMP\mariadb\recreate_databases_and_tables.sql
Generate SQL for tablespace discarding and tablespace importing: php tablespace.php
Now switch to DESTINATION server and make next steps
Run SQL for generating databases and tables and then SQL for tablespace discarding
Stop the DB service
Copy ONLY folders (DO NOT COPY loose files) from your backup/export dir to destination folder
Start the DB service
Run SQL for tablespace importing

Tablespace SQLs might throw errors. At this time you should execute them row by row and correct obvious problems.