Final_Assignment_Template / answer_cache.py
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"""Per-task λ‹΅λ³€ μΊμ‹œ.
채점 μ„œλ²„μ— 닡을 ν•œ 번 μ „μ†‘ν•˜λ”λΌλ„ 점수 확인·디버깅을 μœ„ν•΄ λ‹€μ‹œ λŒλ €μ•Ό ν•  λ•Œκ°€
μžˆλ‹€. ν•œ λ¬Έμ œλ§ˆλ‹€ LLM 호좜이 λΉ„μ‹Έλ―€λ‘œ task_id λ‹¨μœ„λ‘œ 닡을 λ””μŠ€ν¬μ— 보관해
μž¬μ‹€ν–‰ μ‹œ μΊμ‹œλœ λ¬Έμ œλŠ” μŠ€ν‚΅ν•œλ‹€. ν•œ λ¬Έμ œμ—μ„œ 죽으면 전체가 λ©ˆμΆ”λ˜ λΆ€μˆ˜ λ¬Έμ œλ„
ν•¨κ»˜ μ™„ν™” β€” λ‹€μŒ μ‹€ν–‰ λ•Œ κ·Έ 문제만 λ‹€μ‹œ ν’€λ©΄ λœλ‹€.
μ €μž₯ μœ„μΉ˜: .cache/answers.json (이미 디렉터리 쑴재).
ν˜•μ‹: {task_id: {"question": str, "answer": str}}
μ›μžμ  μ“°κΈ°: μž„μ‹œ 파일 β†’ os.replace 둜 λ™μ‹œμ“°κΈ°/ν¬λž˜μ‹œ μ•ˆμ „.
μΊμ‹œ λ¬΄νš¨ν™”λŠ” 파일 직접 μ‚­μ œ(rm .cache/answers.json) λ˜λŠ” clear_cache() μ‚¬μš©.
"""
import json
import os
import tempfile
from pathlib import Path
_CACHE_PATH = Path(".cache") / "answers.json"
def load_cache() -> dict:
"""λ””μŠ€ν¬μ—μ„œ μΊμ‹œ λ‘œλ“œ. 파일 μ—†κ±°λ‚˜ κΉ¨μ§€λ©΄ 빈 dict."""
if not _CACHE_PATH.exists():
return {}
try:
return json.loads(_CACHE_PATH.read_text(encoding="utf-8"))
except Exception as e:
print(f"Warning: cache load failed ({e}); starting empty.")
return {}
def save_answer(task_id: str, question: str, answer: str) -> None:
"""task_id 닡을 μΊμ‹œμ— μΆ”κ°€ν•˜κ³  μ›μžμ μœΌλ‘œ μ €μž₯.
AGENT_ERROR κ²°κ³ΌλŠ” μΊμ‹œ μ•ˆ 함 β€” μž¬μ‹€ν–‰ μ‹œ λ‹€μ‹œ μ‹œλ„ν•΄μ•Ό ν•˜λŠ” ν•­λͺ©μ΄λΌ."""
if not task_id or is_retryable_answer(answer):
return
cache = load_cache()
cache[task_id] = {"question": question, "answer": answer}
_CACHE_PATH.parent.mkdir(parents=True, exist_ok=True)
# 같은 디렉터리에 μž„μ‹œ 파일 β†’ os.replace 둜 OS-level atomic rename.
fd, tmp = tempfile.mkstemp(prefix="answers.", suffix=".tmp", dir=str(_CACHE_PATH.parent))
try:
with os.fdopen(fd, "w", encoding="utf-8") as f:
json.dump(cache, f, ensure_ascii=False, indent=2)
os.replace(tmp, _CACHE_PATH)
except Exception:
# μ‹€νŒ¨ μ‹œ μž„μ‹œ 파일 정리 ν›„ μž¬λ°œμƒ.
try:
os.unlink(tmp)
except OSError:
pass
raise
def get_cached_answer(task_id: str, cache: dict | None = None) -> str | None:
"""μΊμ‹œμ—μ„œ task_id의 닡을 κΊΌλ‚΄κ±°λ‚˜ None.
cache 인자λ₯Ό μ£Όλ©΄ 맀번 λ””μŠ€ν¬ μž¬λ‘œλ”© μ•ˆ 함(λ£¨ν”„μ—μ„œ 유용)."""
if cache is None:
cache = load_cache()
entry = cache.get(task_id)
if entry and isinstance(entry, dict):
return entry.get("answer")
return None
def is_retryable_answer(answer: str | None) -> bool:
"""λ‹€μŒ μ‹€ν–‰μ—μ„œ λ‹€μ‹œ μ‹œλ„ν•΄μ•Ό ν•  닡변인지 νŒλ³„."""
if answer is None:
return True
a = str(answer).strip()
if not a:
return True
upper = a.upper()
return (
upper == "UNKNOWN"
or upper == "UNK"
or upper.startswith("AGENT_ERROR:")
or upper.startswith("AGENT ERROR:")
or "CANNOT ANSWER" in upper
or "NO FINAL ANSWER" in upper
)
def clear_cache() -> None:
"""μˆ˜λ™ 호좜용. μžλ™ 호좜 μ•ˆ 함."""
if _CACHE_PATH.exists():
_CACHE_PATH.unlink()
def invalidate_tasks(task_ids) -> int:
"""μ£Όμ–΄μ§„ task_id λͺ©λ‘λ§Œ μΊμ‹œμ—μ„œ μ œκ±°ν•˜κ³  μ›μžμ μœΌλ‘œ μ €μž₯.
κ°œμ„  λ‹¨κ³„λ§ˆλ‹€ "μ˜€λ‹΅μ΄μ—ˆλ˜ task_id만 μž¬μ‹œλ„" ν•˜κΈ° μœ„ν•œ 헬퍼.
μ •λ‹΅μœΌλ‘œ μΊμ‹œλœ ν•­λͺ©μ€ 보쑴해 토큰을 μ•„λΌλ©΄μ„œ, λ³€κ²½ 효과만 깨끗이 μΈ‘μ •.
Returns:
μ‹€μ œλ‘œ 제거된 ν•­λͺ© 수.
"""
cache = load_cache()
removed = 0
for tid in task_ids:
if tid in cache:
del cache[tid]
removed += 1
if removed == 0:
return 0
_CACHE_PATH.parent.mkdir(parents=True, exist_ok=True)
fd, tmp = tempfile.mkstemp(prefix="answers.", suffix=".tmp", dir=str(_CACHE_PATH.parent))
try:
with os.fdopen(fd, "w", encoding="utf-8") as f:
json.dump(cache, f, ensure_ascii=False, indent=2)
os.replace(tmp, _CACHE_PATH)
except Exception:
try:
os.unlink(tmp)
except OSError:
pass
raise
return removed