53 lines
1.7 KiB
Python
53 lines
1.7 KiB
Python
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"""Phase-1 fitness oracle: score a ``.dom`` via Urb's ``urb-fitness.pl``.
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This is the only throwaway component. It shells out to the Perl evaluator so we
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can validate the Python search core against the trusted fitness before porting
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fitness to Python (Phase 2). ``urb-fitness.pl`` reads ``patterns.config`` from
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its working directory, so the ``.dom`` must live beside the programme config.
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"""
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from __future__ import annotations
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import os
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import subprocess
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from dataclasses import dataclass
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from pathlib import Path
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DEFAULT_URB_ROOT = Path("/home/bruno/src/urb")
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@dataclass
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class Score:
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fitness: float
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fails: str # raw .fails content (YAML and/or plain lines)
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@property
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def n_fails(self) -> int:
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return sum(1 for line in self.fails.splitlines() if line.strip() and line.strip() != "---")
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def score(dom_path: str | Path, urb_root: str | Path = DEFAULT_URB_ROOT) -> Score:
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dom_path = Path(dom_path).resolve()
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urb_root = Path(urb_root).resolve()
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score_file = Path(f"{dom_path}.score")
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fails_file = Path(f"{dom_path}.fails")
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for f in (score_file, fails_file):
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f.unlink(missing_ok=True)
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env = {**os.environ, "DEBUG": "1"}
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proc = subprocess.run(
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["perl", f"-I{urb_root}/lib", str(urb_root / "bin" / "urb-fitness.pl"), dom_path.name],
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cwd=dom_path.parent,
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env=env,
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capture_output=True,
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text=True,
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)
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if not score_file.exists():
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raise RuntimeError(
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f"urb-fitness.pl produced no score for {dom_path}\n"
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f"stdout:\n{proc.stdout}\nstderr:\n{proc.stderr}"
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)
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fitness = float(score_file.read_text().strip())
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fails = fails_file.read_text() if fails_file.exists() else ""
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return Score(fitness=fitness, fails=fails)
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