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⚡️ Speed up method RC.exists by 289% #50

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⚡️ Speed up method RC.exists by 289% #50

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10 changes: 7 additions & 3 deletions guardrails/classes/rc.py
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Original file line number Diff line number Diff line change
Expand Up @@ -19,9 +19,13 @@ class RC(Serializeable):

@staticmethod
def exists() -> bool:
home = expanduser("~")
guardrails_rc = os.path.join(home, ".guardrailsrc")
return os.path.exists(guardrails_rc)
# Cache the home directory to avoid recomputing expanduser("~") every call
# This optimization is safe because the home directory doesn't change during runtime
# and the location of the .guardrailsrc file is fixed for the user context
if not hasattr(RC.exists, "_guardrails_rc"):
home = expanduser("~")
RC.exists._guardrails_rc = os.path.join(home, ".guardrailsrc")
return os.path.exists(RC.exists._guardrails_rc)

@classmethod
def load(cls, logger: Optional[logging.Logger] = None) -> "RC":
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