From 678d5dda6ac3b02a1770bfbdbbd5351695ce6d82 Mon Sep 17 00:00:00 2001
From: Colin <colin.rogers@dbtlabs.com>
Date: Fri, 20 Sep 2024 13:00:56 -0700
Subject: [PATCH] add warn_once

---
 dbt_common/behavior_flags.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/dbt_common/behavior_flags.py b/dbt_common/behavior_flags.py
index a2eb097..94a4ba2 100644
--- a/dbt_common/behavior_flags.py
+++ b/dbt_common/behavior_flags.py
@@ -47,6 +47,7 @@ class BehaviorFlagRendered:
     """
 
     def __init__(self, flag: BehaviorFlag, user_overrides: Dict[str, Any]) -> None:
+        self._warn_once = None
         self._validate(flag)
 
         self.name = flag["name"]
@@ -74,6 +75,8 @@ def _validate(flag: BehaviorFlag) -> None:
     def setting(self) -> bool:
         if self._setting is False:
             fire_event(self._behavior_change_event)
+            if self._warn_once:
+                self._setting = True
         return self._setting
 
     @setting.setter
@@ -84,6 +87,10 @@ def setting(self, value: bool) -> None:
     def no_warn(self) -> bool:
         return self._setting
 
+    @property
+    def warn_once(self) -> None:
+        self._warn_once = True
+
     @staticmethod
     def _default_source() -> str:
         """