Refactor dbt utility for modularity

docs/utilities.rst

@@ -69,3 +69,9 @@ Below are the required and optional arguments utilizing Google Cloud Storage as
       - No
       - Defaults is 60 minutes.
 
+.. _dbt:
+=============
+dbt Utilities
+=============
+.. autoclass:: parsons.utilities.dbt
+   :inherited-members:

parsons/utilities/dbt/__init__.py

@@ -0,0 +1,60 @@
+"""Utility for running and logging output from dbt commands
+
+Enable this utility by installing parsons with a dbt extra:
+`pip install parsons[dbt-redshift]`
+or `pip install parsons[dbt-postgres]`
+or `pip install parsons[dbt-snowflake]`
+or `pip install parsons[dbt-bigquery]`
+
+To run dbt commands, you will need to have a dbt project directory
+somewhere on the local filesystem.
+
+The dbt command will inherit environment variables from the python
+process shell, so if your dbt profiles.yml file uses environment
+variables, ensure those are set in python or the parent shell before
+running this dbt utility.
+
+Logging is handled separately from the dbt run itself. The
+dbtRunner.run method returns a dbtCommandResult object which can be
+passed to a child class of dbtLogger for logging to stdout, slack,
+etc.
+
+Parsons provides a few example dbtLogger child classes, but for
+best results, design your own!
+
+Example usage:
+```
+from parsons.utilities.dbt import (
+    run_dbt_commands,
+    dbtLoggerSlack,
+    dbtLoggerPython
+)
+
+run_dbt_commands(
+    commands=['run', 'test'],
+    dbt_project_directory='/home/ubuntu/code/dbt_project/',
+    loggers=[
+        dbtLoggerPython,
+        dbtLoggerSlack(slack_webhook=os.environ['SLACK_WEBHOOK'])
+    ]
+)
+
+```
+
+"""
+
+from parsons.utilities.dbt.dbt import run_dbt_commands
+from parsons.utilities.dbt.logging import (
+    dbtLoggerMarkdown,
+    dbtLoggerPython,
+    dbtLoggerSlack,
+    dbtLoggerStdout,
+)
+
+__all__ = [
+    "run_dbt_commands",
+    "dbtLoggerMarkdown",
+    "dbtLoggerSlack",
+    "dbtLoggerStdout",
+    "dbtLoggerPython",
+]