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lean-bench/leanbench/config.py
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Zayden-Jung d3555d9a52
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Rebuild lean-bench: pages in, verified indexed Lean out
Replaces the previous tree entirely. The pipeline is four separable pieces, each
testable on its own:

1. leanbench/llm.py      provider-neutral OpenAI-compatible connector, stdlib only,
                        with retries, JSON coercion and a scripted client so the
                        rest of the code is testable without a network.
2. leanbench/detect.py   per-page detection of formalizable mathematics. Case 1 is
                        mathematics asserted as fact (definition/theorem/lemma/...,
                        deliberately not sub-classified); case 2 is a problem left
                        open to the reader. Hits come back as spans -- start page
                        and index, end page and index -- so several per page is
                        normal. A hit cut off by the page end makes the detector
                        re-read that page together with the next, repeatedly, so an
                        item spread over three pages is found whole.
                        Offsets come from verbatim quotes resolved by
                        leanbench/anchors.py (exact -> whitespace-insensitive ->
                        fuzzy), because models quote well and count badly.
3. leanbench/formalize.py + leanbench/verify.py
                        each span becomes one Lean 4 declaration, judged by the real
                        compiler: full elaboration for case 1, statement legality
                        only for case 2, which has no proof to check. Lean's own
                        diagnostics feed back for a repair attempt. "verified" (Lean
                        accepted it) and "proved" (accepted with no sorry) are kept
                        strictly apart.
4. leanbench/db.py       indexed SQLite plus JSONL export. Every item is indexed by
                        the types of its inputs, or by its own type when it is not a
                        proof, and records the source book (sha256) and the page it
                        starts on -- so `drop --source H --pages A-B` followed by a
                        re-ingest redoes exactly those pages and nothing else.

Also: lean/ Lake project pinned to Mathlib, docker/ image carrying Lean 4 and a
prebuilt Mathlib (the Mathlib revision and the toolchain are resolved against each
other at build time rather than both hardcoded), and .gitea/workflows for tests,
image build and push to the Gitea registry, and a manual "submit a book" run.

58 tests; they need neither network nor Lean.
2026-09-19 07:05:52 +00:00

117 lines
3.8 KiB
Python

"""Runtime configuration, read from the environment (and an optional .env file).
Everything the pipeline needs to talk to an LLM or to Lean is settable without
touching code, so the same image runs against any OpenAI-compatible endpoint and
any Lean project.
"""
from __future__ import annotations
import json
import os
from dataclasses import dataclass, field
from pathlib import Path
DEFAULT_BASE_URL = "https://dashscope.aliyuncs.com/compatible-mode/v1"
DEFAULT_MODEL = "qwen-max"
DEFAULT_API_KEY_ENV = "DASHSCOPE_API_KEY"
def load_dotenv(path: Path | str = ".env") -> None:
"""Load ``KEY=VALUE`` lines into os.environ without overwriting what is set."""
path = Path(path)
if not path.is_file():
return
for line in path.read_text(encoding="utf-8").splitlines():
line = line.strip()
if not line or line.startswith("#") or "=" not in line:
continue
key, _, value = line.partition("=")
os.environ.setdefault(key.strip(), value.strip().strip('"').strip("'"))
def _env(name: str, default: str) -> str:
value = os.environ.get(name)
return default if value is None or value == "" else value
def _env_int(name: str, default: int) -> int:
try:
return int(_env(name, str(default)))
except ValueError:
return default
def _env_float(name: str, default: float) -> float:
try:
return float(_env(name, str(default)))
except ValueError:
return default
@dataclass
class LLMSettings:
model: str = DEFAULT_MODEL
base_url: str = DEFAULT_BASE_URL
api_key_env: str = DEFAULT_API_KEY_ENV
timeout: float = 300.0
max_retries: int = 4
temperature: float = 0.0
@classmethod
def from_env(cls) -> LLMSettings:
return cls(
model=_env("LEANBENCH_LLM_MODEL", DEFAULT_MODEL),
base_url=_env("LEANBENCH_LLM_BASE_URL", DEFAULT_BASE_URL),
api_key_env=_env("LEANBENCH_LLM_API_KEY_ENV", DEFAULT_API_KEY_ENV),
timeout=_env_float("LEANBENCH_LLM_TIMEOUT", 300.0),
max_retries=_env_int("LEANBENCH_LLM_MAX_RETRIES", 4),
temperature=_env_float("LEANBENCH_LLM_TEMPERATURE", 0.0),
)
@dataclass
class LeanSettings:
"""How to invoke Lean. ``command`` is an argv prefix that is given a .lean path."""
command: list[str] = field(default_factory=lambda: ["lake", "env", "lean"])
project: str | None = None
timeout: float = 120.0
header: str = "import Mathlib\n"
@classmethod
def from_env(cls) -> LeanSettings:
raw = _env("LEANBENCH_LEAN_COMMAND", '["lake","env","lean"]')
try:
command = json.loads(raw)
if not isinstance(command, list) or not all(isinstance(x, str) for x in command):
raise ValueError
except ValueError:
command = raw.split()
return cls(
command=command,
project=os.environ.get("LEANBENCH_LEAN_PROJECT") or None,
timeout=_env_float("LEANBENCH_LEAN_TIMEOUT", 120.0),
header=_env("LEANBENCH_LEAN_HEADER", "import Mathlib\n"),
)
@dataclass
class Settings:
llm: LLMSettings = field(default_factory=LLMSettings)
lean: LeanSettings = field(default_factory=LeanSettings)
database: str = "database/leanbench.sqlite"
max_window_pages: int = 3
repair_attempts: int = 1
@classmethod
def from_env(cls, dotenv: Path | str | None = ".env") -> Settings:
if dotenv is not None:
load_dotenv(dotenv)
return cls(
llm=LLMSettings.from_env(),
lean=LeanSettings.from_env(),
database=_env("LEANBENCH_DATABASE", "database/leanbench.sqlite"),
max_window_pages=_env_int("LEANBENCH_MAX_WINDOW_PAGES", 3),
repair_attempts=_env_int("LEANBENCH_REPAIR_ATTEMPTS", 1),
)