$ show doctrine/migrations
Doctrine Migrations is a PHP library and CLI tool for managing database schema changes through versioned migration classes. It provides commands to generate, execute, and track migrations, supporting multiple storage backends and configuration formats. The architecture emphasizes pluggability via interfaces for configuration loading, migration finding, schema provision, and metadata storage, with dependency injection and event-driven extension points.
The LLM identified 3 files worth highlighting for reuse:
Defines a strategy interface for loading configuration from various file formats (PHP, JSON, YAML, XML). Each loader implementation is self-contained, parsing its respective format into a configuration array. This allows flexible configuration sources without tying the core logic to a specific format.
Defines a strategy interface for finding files in the filesystem. Implementations like GlobFinder (using glob patterns) and RecursiveRegexFinder (using recursive regex search) provide reusable file-finding algorithms without migration-specific dependencies, enabling generic file discovery in any project.
Implements a lightweight event dispatcher that allows components to subscribe to and emit events. This decouples core migration logic from cross-cutting concerns like transaction management or logging, demonstrating the observer pattern with minimal dependencies and clear separation of concerns.