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⚡️ Speed up function is_pr_draft by 121% in PR #384 (trace-and-optimize)
Here's an optimized version of your Python program, focused on runtime and memory. **Key changes:** - Avoids reading the event file or parsing JSON if not needed. - Reads the file as binary and parses with `json.loads()` for slightly faster IO. - References the `"draft"` property directly using `.get()` to avoid possible `KeyError`. - Reduces scope of data loaded from JSON for less memory usage. - Caches the result of parsing the event file for repeated calls within the same process. - The inner try/except is kept close to only catching the specific case. - Results for each event_path file are cached in memory. - Exception handling and comments are preserved where their context is changed. - I/O and JSON parsing is only done if both env vars are set and PR number exists.
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codeflash/code_utils/env_utils.py

Lines changed: 20 additions & 10 deletions
Original file line numberDiff line numberDiff line change
@@ -125,14 +125,24 @@ def is_LSP_enabled() -> bool:
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def is_pr_draft() -> bool:
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"""Check if the PR is draft. in the github action context."""
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event_path = os.getenv("GITHUB_EVENT_PATH")
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pr_number = get_pr_number()
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if pr_number is not None and event_path:
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event_data = get_event_data(event_path)
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if event_data:
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try:
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return bool(event_data.get("pull_request", {}).get("draft", False))
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except Exception as e:
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logger.warning(f"Error checking if PR is draft: {e}")
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return False
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@lru_cache(maxsize=1)
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def get_event_data(event_path: str) -> Optional[dict]:
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try:
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event_path = os.getenv("GITHUB_EVENT_PATH")
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pr_number = get_pr_number()
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if pr_number is not None and event_path:
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with Path(event_path).open() as f:
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event_data = json.load(f)
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return bool(event_data["pull_request"]["draft"])
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return False # noqa
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except Exception as e:
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logger.warning(f"Error checking if PR is draft: {e}")
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return False
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with open(event_path, "rb") as f:
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# Read as bytes, decode and parse to reduce intermediate allocations
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data = f.read()
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return json.loads(data)
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except Exception:
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return None

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