airflow2to3

This is a command line program that rewrites Airflow DAG files to be compatible with Airflow 3, so users can upgrade more smoothly.

Example usage:

$ airflow2to3 --select AIR301 -- path/to/dag.py

The --select flag takes a comma-separated codes for the tool to fix. The codes are from Ruff's Airflow rules with the AIR prefix removed.

We only implement 2-to-3 rules with code 3xx.