Creating migration from SQL-files

This is can be useful for creating migration based on SQL from vendor packages in application

Example of command:

./yii migrate/create --sql-up=/vendor/yiisoft/package/migrations/1/up.sql  --sql-down=/vendor/yiisoft/package/migrations/1/down.sql

Result may be so:

public function up(MigrationBuilder $b): void
{
    $b->execute('... sql from UP file ...');
}

public function down(MigrationBuilder $b): void
{
    $b->execute('... sql from DOWN file ...');
}

Start at the migrate/create command entry point and trace how migration files are generated. Use the --sql-up and --sql-down examples as acceptance cases, checking how SQL file contents become the generated up() and down() methods. Done means both options produce a usable migration containing the corresponding SQL.