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"""File I/O utilities for solution generation."""
import os
import re
from pathlib import Path
from typing import Dict, List, Tuple
def load_env_file(env_path: Path) -> None:
"""Load simple KEY=VALUE pairs from a .env file into os.environ."""
if not env_path.is_file():
return
for raw_line in env_path.read_text(encoding="utf-8").splitlines():
line = raw_line.strip()
if not line or line.startswith("#"):
continue
if line.lower().startswith("export "):
line = line[len("export "):].strip()
if "=" not in line:
continue
key, value = line.split("=", 1)
key = key.strip()
value = value.strip().strip('"').strip("'")
if key:
os.environ[key] = value
def load_solution_targets(path: Path) -> List[Tuple[str, str]]:
"""Load solution:problem pairs from a solutions file."""
if not path.is_file():
raise FileNotFoundError(f"Solutions file not found: {path}")
targets: List[Tuple[str, str]] = []
seen: set[str] = set()
for raw_line in path.read_text(encoding="utf-8").splitlines():
line = raw_line.strip()
if not line or line.startswith("#"):
continue
if ":" not in line:
raise ValueError(f"Invalid solutions file line (expected solution:problem): {line}")
solution, problem = line.split(":", 1)
solution = solution.strip()
problem = problem.strip()
if not solution or not problem:
continue
key = f"{solution}:{problem}"
if key in seen:
continue
seen.add(key)
targets.append((solution, problem))
if not targets:
raise ValueError(f"No valid entries found in {path}")
return targets
def read_models_file(path: Path) -> List[str]:
"""Read model names from a newline-delimited file."""
models: List[str] = []
seen: set[str] = set()
if not path.is_file():
return models
for raw_line in path.read_text(encoding="utf-8").splitlines():
line = raw_line.strip()
if not line or line.startswith("#"):
continue
if line not in seen:
models.append(line)
seen.add(line)
return models
def read_variant_indices_file(path: Path) -> List[int]:
"""Read variant indices from file.
Format:
- One integer per line (e.g., 0, 1, 2, 3, 4). 0 means no suffix.
- Blank lines and lines starting with '#' are ignored.
Backward compatibility:
- If the file contains a single integer N, treat as variants [0..N-1].
"""
if not path.is_file():
return [0]
raw: List[str] = []
for raw_line in path.read_text(encoding="utf-8").splitlines():
line = raw_line.strip()
if not line or line.startswith("#"):
continue
raw.append(line)
if not raw:
return [0]
# If single integer -> expand to range
if len(raw) == 1:
try:
count = int(raw[0])
if count <= 0:
return [0]
return list(range(count))
except ValueError:
pass # fall through to per-line parsing
seen: set[int] = set()
indices: List[int] = []
for entry in raw:
try:
idx = int(entry)
except ValueError as exc:
raise ValueError(f"Invalid variant index in {path}: '{entry}'") from exc
if idx < 0:
raise ValueError(f"Variant indices must be >= 0, got {idx}")
if idx not in seen:
seen.add(idx)
indices.append(idx)
if not indices:
return [0]
return indices
def read_readme(problem_path: Path) -> str:
"""Read the README file from a problem directory."""
for name in ["readme", "README.md", "README", "readme.md"]:
readme = problem_path / name
if readme.exists():
return readme.read_text(encoding='utf-8')
raise FileNotFoundError(f"No README in {problem_path}")
def load_docker_config(config_path: Path) -> Dict[str, Tuple[str, bool, bool]]:
"""
Load docker image configuration from docker_images.txt.
Returns:
Dict mapping problem_name -> (image, gpu_enabled, dind_enabled)
"""
if not config_path.exists():
return {}
config = {}
for line in config_path.read_text().splitlines():
line = line.strip()
if not line or line.startswith("#"):
continue
if "=" not in line:
continue
problem_name, rest = line.split("=", 1)
parts = rest.split(",")
image = parts[0].strip() if parts else ""
gpu_enabled = False
dind_enabled = False
for part in parts[1:]:
part = part.strip().lower()
if part in ("gpu", "true", "1"):
gpu_enabled = True
elif part in ("dind", "docker"):
dind_enabled = True
config[problem_name.strip()] = (image, gpu_enabled, dind_enabled)
return config
def write_problems_from_pairs(pairs_path: Path, target_path: Path) -> None:
"""Extract problem paths from a pairs file and write to a problems file."""
if not pairs_path.is_file():
return
problems: List[str] = []
seen: set[str] = set()
for raw_line in pairs_path.read_text(encoding="utf-8").splitlines():
stripped = raw_line.strip()
if not stripped or stripped.startswith("#"):
continue
if ":" not in stripped:
continue
_, problem = stripped.split(":", 1)
problem_clean = problem.strip()
if not problem_clean:
continue
if not problem_clean.startswith("research/") and not problem_clean.startswith("./research/"):
problem_clean = f"research/{problem_clean.lstrip('./')}"
if problem_clean not in seen:
seen.add(problem_clean)
problems.append(problem_clean)
if not problems:
return
target_path.write_text("\n".join(problems) + "\n", encoding="utf-8")
def sanitize_model_suffix(model: str) -> str:
"""Sanitize model name for use as a filename suffix."""
return re.sub(r"[^a-zA-Z0-9]+", "_", model).strip("_") or "model"
def get_problem_name(problem_path: Path) -> str:
"""
Extract the problem name from the problem path.
Returns just the problem identifier without any model prefix.
Examples:
- research/vdb_pareto/balanced -> vdb_pareto_balanced
- research/cant_be_late_multi/high_availability -> cant_be_late_multi_high_availability
"""
if problem_path.is_absolute():
try:
problem_path = problem_path.relative_to(problem_path.anchor)
except ValueError:
pass
parts = [p for p in problem_path.parts if p and p != "problems"]
if not parts:
raise ValueError(f"Unable to derive problem name from '{problem_path}'")
return "_".join(parts)
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