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Migration Framework

Migration Script Runner (MSR)

A database-agnostic migration framework for TypeScript/JavaScript and CLI. MSR provides a lightweight, flexible framework for managing database migrations without locking you into a specific ORM or database system.

System Architecture

MSR (Migration Script Runner) is a database-agnostic migration framework designed for technical flexibility and archival integrity. It aims to bridge the gap between complex ORM-locked migrations and raw SQL scripts, providing a developer-friendly CLI and a robust TypeScript API.

Whether you are running on standard SQL databases or specialized environments like Firebase Firestore, MSR ensures your schema and data stay in sync across environments through a consistent, managed signal.

Advanced Features

A detailed breakdown of the technical protocols provided by MSR to ensure archival signal integrity across diverse database architectures.

Migration Execution

  • Multi-Format Migrations (TS, JS, SQL)
  • Up/Down Methods for Reversible Migrations
  • Batch Execution with Progress Tracking
  • Target Version Migration (Up or Down)
  • Selective Execution with File Patterns

Safety & Rollback

  • Dry Run Mode for Safe Testing
  • Automatic Database Backups
  • Multiple Rollback Strategies (BACKUP, DOWN, BOTH, NONE)
  • Checksum Validation to Detect Unauthorized Changes
  • Pre-Migration Validation to Catch Issues Early

Transaction Management

  • Configurable Transaction Modes (PER_MIGRATION, PER_BATCH, NONE)
  • Full Control Over SQL Isolation Levels
  • Automatic Retry Logic with Exponential Backoff
  • Smart Detection of Transient Errors (e.g., Deadlocks)
  • Callback-Based Transactions for NoSQL Databases

Validation & Quality

  • Built-in Validators for Structure, Syntax, and Conventions
  • Custom Validators to Extend Validation Rules
  • Strict Mode to Treat Warnings as Errors in CI/CD
  • Duplicate Timestamp/Version Detection
  • Down Method Policies to Enforce Reversibility

Monitoring & Logging

  • Built-in Metrics Collectors (Console, JSON, CSV)
  • Detailed JSON/Text Execution Summaries
  • Multiple Logger Support (Console, File, Silent, Custom)
  • Log Level Control for Verbosity
  • Lifecycle Hooks for Monitoring and Extension

Configuration & Extensibility

  • Environment Variable Support (MSR_*)
  • .env File Support (.env, .env.production, etc.)
  • Custom Database Handlers for Any Database
  • Custom Loaders, Validators, Loggers, and Renderers
  • CLI Factory to Create Custom Command-Line Interfaces
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