datatrack-core 0.1.4

Version Control for Database Schemas

Datatrack - Version Control for Databases

Datatrack is a lightweight and open-source CLI tool that brings Git-like version control to your database schemas. Built for Data Engineers, Analytics Engineers, and Platform Teams, it automates: • Schema snapshots • Diffs across versions • Linting for naming and structure • Verification against custom rules • Exporting to JSON/YAML

Because in modern data systems, your schema is your contract—and when it breaks silently, everything else crumbles.

Features

• Snapshot schemas from any SQL-compatible DB
• Lint schema naming issues
• Enforce verification rules
• Compare schema snapshots (diff)
• Export to JSON/YAML for auditing or CI
• Full pipeline in one command

Installation

Option 1: Install from PyPI (production use)

pip install datatrack-core

This is the easiest and recommended way to use datatracker as a CLI tool in your workflows.

Option 2: Install from GitHub (for development)

git clone https://github.com/nrnavaneet/datatrack.git
cd datatrack
pip install -r requirements.txt
pip install -e .

This method is ideal if you want to contribute or modify the tool.

Helpful Commands

Datatrack comes with built-in help and guidance for every command. Use this to quickly learn syntax and options:

datatrack --help
or
datatrack -h

How to Use

1. Initialize Tracking

datatrack init

Creates .datatrack/, .databases/, and optional initial files.

2. Connect to a Database

Save your DB connection for future use:

MySQL

datatrack connect mysql+pymysql://root:<password>@localhost:3306/<database-name>

PostgreSQL

datatrack connect postgresql+psycopg2://postgres:<password>@localhost:5432/<database-name>

SQLite

datatrack connect sqlite:///.databases/<database-name>

3. Take a Schema Snapshot

datatrack snapshot

Saves the current schema to .databases/exports/<db_name>/snapshots/.

4. Lint the Schema

datatrack lint

Detects issues in naming and structure.

5. Verify Schema Rules

datatrack verify

Validates schema against schema_rules.yaml.

6. View Schema Differences

datatrack diff

Shows table and column changes between the latest two snapshots.

7. Export Snapshots or Diffs

Export latest snapshot as YAML (default)

datatrack export

Explicitly export snapshot as YAML

datatrack export --type snapshot --format yaml

Export latest diff as JSON

datatrack export --type diff --format json

Output is saved in .databases/exports/<db_name>/.

8. View Snapshot History

datatrack history

Displays all snapshot timestamps and table counts.

9. Run the Full Pipeline

datatrack pipeline run

Runs lint, snapshot, verify, diff, and export together.

For advanced use cases and integration into CI/CD, visit:

https://github.com/nrnavaneet/datatrack