added project level variable and associated IF statements to on-run-start macros to default UDF/SP updates to False (#30)

README.md

@@ -35,7 +35,17 @@ avalanche:
       query_tag: <TAG>
 ```
 
+### Variables
 
+To control the creation of UDF or SP macros with dbt run:
+* UPDATE_UDFS_AND_SPS
+When True, executes all macros included in the on-run-start hooks within dbt_project.yml on model run as normal
+When False, none of the on-run-start macros are executed on model run
+
+Default values are False
+
+* Usage:
+dbt run --var '{"UPDATE_UDFS_AND_SPS":True}'  -m ...
 
 ### Resources:
 - Learn more about dbt [in the docs](https://docs.getdbt.com/docs/introduction)

dbt_project.yml

@@ -40,3 +40,4 @@ on-run-start:
 
 vars:
   "dbt_date:time_zone": GMT
+  UPDATE_UDFS_AND_SPS: False

macros/create_sps.sql

@@ -1,6 +1,8 @@
 {% macro create_sps() %}
-    {% if target.database == 'AVALANCHE' %}
-        CREATE schema IF NOT EXISTS _internal;
-{{ sp_create_prod_clone('_internal') }};
+    {% if var("UPDATE_UDFS_AND_SPS") %}
+        {% if target.database == 'AVALANCHE' %}
+            CREATE schema IF NOT EXISTS _internal;
+    {{ sp_create_prod_clone('_internal') }};
+        {% endif %}
     {% endif %}
 {% endmacro %}

macros/create_udfs.sql

@@ -1,11 +1,13 @@
 {% macro create_udfs() %}
-    {% set sql %}
-    CREATE schema if NOT EXISTS silver;
-{{ create_js_hex_to_int() }};
-{{ create_udf_hex_to_int(
-        schema = "public"
-    ) }}
+    {% if var("UPDATE_UDFS_AND_SPS") %}
+        {% set sql %}
+        CREATE schema if NOT EXISTS silver;
+    {{ create_js_hex_to_int() }};
+    {{ create_udf_hex_to_int(
+            schema = "public"
+        ) }}
 
-    {% endset %}
-    {% do run_query(sql) %}
+        {% endset %}
+        {% do run_query(sql) %}
+    {% endif %}
 {% endmacro %}