Tests define the db module API:
- connection_url() builds the sqlx URL with percent-encoded
credentials; with/without the database name
- split_statements() splits SQL on semicolons outside strings and
line comments (the embedded migration is applied statement by
statement, since DDL cannot run in a rollbackable transaction)
- the embedded migration is Documentation/schema.sql (version 1),
carrying the seven domain tables only; schema_migrations is
created by the application
- backup_command() shells out to mariadb-dump (mysqldump fallback)
with --single-transaction, password via MYSQL_PWD, never argv
- restore_command() pipes the dump (which carries CREATE DATABASE /
USE) into the mariadb client
- backup_filename() is timestamped per cli.md
jakob
676e55eeb6