title: How to run DBT in airflow without copying our repo
body: <p>We use DBT with GCP and BigQuery for transformations in BigQuery, and the simplest approach to scheduling our daily <code>run dbt</code> seems to be a <code>BashOperator</code> in Airflow. Currently we have two separate directories / github projects, one for DBT and another for Airflow. To schedule DBT to run with Airflow, it seems like our entire DBT project would need to be nested inside of our Airflow project, that way we can point to it for our <code>dbt run</code> bash command?</p>
  <p>Is it possible to trigger our <code>dbt run</code> and <code>dbt test</code> without moving our DBT directory inside of our Airflow directory? With the <a href="https://github.com/gocardless/airflow-dbt" rel="nofollow noreferrer">airflow-dbt package</a>,  for the <code>dir</code> in the <code>default_args</code>, maybe it is possible to point to the gibhub link for the DBT project here?</p>