dbwarden 0.1.3.1

Database migration system for Python/SQLAlchemy projects

DBWarden

A database migration system for Python/SQLAlchemy projects.

Installation

pip install dbwarden

Configuration

Create warden.toml in your project:

sqlalchemy_url = "sqlite:///./development.db"
async = false

Or use environment variables:

DBWARDEN_SQLALCHEMY_URL=postgresql://user:pass@localhost/db
DBWARDEN_ASYNC=false  # or true for async mode

Basic Commands

Command	Description
dbwarden init	Initialize migrations directory
dbwarden make-migrations "name"	Generate SQL from SQLAlchemy models
dbwarden migrate	Apply pending migrations
dbwarden migrate --verbose	Apply with detailed logging
dbwarden rollback	Revert the last migration
dbwarden history	Show migration history
dbwarden status	Show current status
dbwarden mode	Show sync/async mode
dbwarden check-db	Inspect DB schema
dbwarden diff	Show models vs DB differences

SQLAlchemy Models

DBWarden automatically detects models in models/:

# models/user.py
from sqlalchemy import Column, Integer, String
from sqlalchemy.orm import declarative_base

Base = declarative_base()

class User(Base):
    __tablename__ = "users"
    id = Column(Integer, primary_key=True)
    name = Column(String(100))
    email = Column(String(255), unique=True)

Complete Example

# 1. Initialize
dbwarden init

# 2. Create models in models/

# 3. Generate migration from models
dbwarden make-migrations "create users table"

# 4. Apply
dbwarden migrate --verbose

# 5. View history
dbwarden history

Environment Variables

Variable	Description
DBWARDEN_SQLALCHEMY_URL	DB connection URL
DBWARDEN_ASYNC	Async mode (true/false)
DBWARDEN_MODEL_PATHS	Paths to SQLAlchemy models

Supported Databases

• PostgreSQL (sync + async)
• SQLite (sync + async)
• MySQL (sync)

Docs

For more information, see DBWarden Docs or DBWarden DeepWiki page

License

This Project is Licensed under the MIT License. See LICENSE