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from __future__ import annotations
import hashlib
import math
import os
import re
import shlex
import shutil
import subprocess
import tempfile
from pathlib import Path
FOAM_BASHRC = Path("/opt/openfoam11/etc/bashrc")
WORD_RE = re.compile(r"[A-Za-z0-9]+(?:[-'][A-Za-z0-9]+)*")
def read_text(path: Path) -> str:
return path.read_text(encoding="utf-8", errors="ignore")
def file_hash(path: Path) -> str:
digest = hashlib.sha256()
with path.open("rb") as handle:
for chunk in iter(lambda: handle.read(1024 * 1024), b""):
digest.update(chunk)
return digest.hexdigest()
def run_foam(case: Path, args: list[str], timeout: int = 60) -> tuple[int, str]:
command = [args[0], "-case", str(case), *args[1:]]
script = f". {shlex.quote(str(FOAM_BASHRC))} && {shlex.join(command)}"
completed = subprocess.run(
["bash", "-lc", script],
stdout=subprocess.PIPE,
stderr=subprocess.STDOUT,
text=True,
timeout=timeout,
check=False,
)
return completed.returncode, completed.stdout
def has_required_case_files(case: Path) -> bool:
required = (
"0/U",
"0/p",
"constant/physicalProperties",
"system/blockMeshDict",
"system/controlDict",
"system/fvSchemes",
"system/fvSolution",
)
return all((case / rel).is_file() and (case / rel).stat().st_size > 0 for rel in required)
def diagnosis_is_specific(path: Path) -> bool:
if not path.is_file() or path.stat().st_size == 0:
return False
text = read_text(path)
low = text.lower()
if len(WORD_RE.findall(text)) < 100:
return False
# Check the three actual defects, without requiring one exact English phrase.
duplicate = any(token in low for token in ("duplicat", "coincident", "same coordinate", "identical to vertex"))
orientation = any(token in low for token in ("inside-out", "right-handed", "right hand", "left-handed", "wrong-handed"))
bad_index = "99" in low and any(token in low for token in ("range", "nonexistent", "non-existent", "does not exist", "invalid", "undefined"))
corrected_corner = re.search(r"\(\s*0(?:\.0*)?\s+1(?:\.0*)?\s+0\.0*1\s*\)", low) is not None
return "blockmesh" in low and duplicate and orientation and bad_index and corrected_corner
def final_field_is_structured(path: Path, class_name: str, list_type: str) -> bool:
if not path.is_file() or path.stat().st_size == 0:
return False
text = read_text(path)
if not re.search(r"\bformat\s+ascii\s*;", text) or not re.search(rf"\bclass\s+{re.escape(class_name)}\s*;", text):
return False
declaration = re.search(
rf"internalField\s+nonuniform\s+List<{re.escape(list_type)}>\s+(\d+)\s*\(",
text,
flags=re.DOTALL,
)
if not declaration or int(declaration.group(1)) != 400:
return False
return re.search(r"(?i)(?:^|[^A-Za-z])(?:nan|inf)(?:[^A-Za-z]|$)", text) is None
def field_payload(path: Path) -> dict:
"""Parse ASCII field dictionaries without depending on whitespace or key order."""
text = re.sub(r"/\*.*?\*/|//[^\n]*", "", read_text(path), flags=re.S)
tokens = re.findall(r'"(?:\\.|[^"\\])*"|[{}();\[\]]|[^\s{}();\[\]]+', text)
position = 0
def dictionary(nested=False):
nonlocal position
result = {}
while position < len(tokens):
if tokens[position] == "}":
if not nested:
raise ValueError("unexpected dictionary end")
position += 1
return result
key = tokens[position].strip('"')
position += 1
if key in result or position >= len(tokens):
raise ValueError("duplicate or unfinished field entry")
if tokens[position] == "{":
position += 1
result[key] = dictionary(True)
if position < len(tokens) and tokens[position] == ";":
position += 1
else:
values = []
depth = 0
while position < len(tokens):
token = tokens[position]
position += 1
if token == ";" and depth == 0:
break
if token in ("(", "["):
depth += 1
elif token in (")", "]"):
depth -= 1
if depth < 0 or token in ("{", "}"):
raise ValueError("invalid field syntax")
try:
value = float(token)
except ValueError:
value = token.strip('"')
else:
if not math.isfinite(value):
raise ValueError("nonfinite field value")
values.append(value)
else:
raise ValueError("unterminated field entry")
if depth:
raise ValueError("unbalanced field list")
result[key] = values
if nested:
raise ValueError("unterminated dictionary")
return result
result = dictionary()
header = result.pop("FoamFile", {})
if header.get("format") != ["ascii"] or header.get("object") != [path.name]:
raise ValueError("field header mismatch")
expected = "volVectorField" if path.name == "U" else "volScalarField"
if header.get("class") != [expected]:
raise ValueError("field class mismatch")
if not {"dimensions", "internalField", "boundaryField"}.issubset(result):
raise ValueError("required field payload missing")
return result
def equivalent_fields(left: Path, right: Path) -> bool:
def equivalent(a, b):
if isinstance(a, dict) and isinstance(b, dict):
return a.keys() == b.keys() and all(equivalent(a[k], b[k]) for k in a)
if isinstance(a, list) and isinstance(b, list):
return len(a) == len(b) and all(equivalent(x, y) for x, y in zip(a, b))
if isinstance(a, float) and isinstance(b, float):
return math.isclose(a, b, rel_tol=5e-6, abs_tol=1e-9)
return a == b
try:
return equivalent(field_payload(left), field_payload(right))
except (ValueError, OSError):
return False
def remove_generated_mesh_and_times(case: Path) -> None:
poly_mesh = case / "constant" / "polyMesh"
if poly_mesh.exists():
shutil.rmtree(poly_mesh)
for child in case.iterdir():
if not child.is_dir():
continue
try:
time_value = float(child.name)
except ValueError:
continue
if time_value > 0:
shutil.rmtree(child)
def check_task(root: Path) -> bool:
diagnosis = root / "diagnosis.txt"
broken = root / "broken_block"
fixed = root / "fixed"
if not FOAM_BASHRC.is_file():
return False
if not diagnosis_is_specific(diagnosis):
return False
if not has_required_case_files(broken) or not has_required_case_files(fixed):
return False
submitted_u = fixed / "0.5" / "U"
submitted_p = fixed / "0.5" / "p"
if not final_field_is_structured(submitted_u, "volVectorField", "vector"):
return False
if not final_field_is_structured(submitted_p, "volScalarField", "scalar"):
return False
submitted_hashes = {"U": file_hash(submitted_u), "p": file_hash(submitted_p)}
with tempfile.TemporaryDirectory(prefix="engiworld-openfoam17-eval-") as tmp:
tmp_root = Path(tmp)
broken_copy = tmp_root / "broken_block"
fixed_copy = tmp_root / "fixed"
shutil.copytree(broken, broken_copy)
shutil.copytree(fixed, fixed_copy)
broken_poly_mesh = broken_copy / "constant" / "polyMesh"
if broken_poly_mesh.exists():
shutil.rmtree(broken_poly_mesh)
broken_rc, broken_log = run_foam(broken_copy, ["blockMesh"])
broken_low = broken_log.lower()
if broken_rc == 0 or "version: 11" not in broken_low:
return False
if "inside-out" not in broken_low or "fatal io error" not in broken_low:
return False
remove_generated_mesh_and_times(fixed_copy)
mesh_rc, mesh_log = run_foam(fixed_copy, ["blockMesh"])
if mesh_rc != 0 or "Version: 11" not in mesh_log or not mesh_log.rstrip().endswith("End"):
return False
if "nCells: 400" not in mesh_log or "Number of undefined boundary faces : 0" not in mesh_log:
return False
check_rc, check_log = run_foam(
fixed_copy,
["checkMesh", "-allTopology", "-allGeometry"],
)
if check_rc != 0 or "Mesh OK." not in check_log or "Failed " in check_log:
return False
if "hexahedra: 400" not in check_log or "wedges: 0" not in check_log:
return False
solver_rc, solver_log = run_foam(fixed_copy, ["icoFoam"], timeout=90)
if solver_rc != 0 or "Version: 11" not in solver_log or not solver_log.rstrip().endswith("End"):
return False
if "Time = 0.5s" not in solver_log:
return False
rerun_u = fixed_copy / "0.5" / "U"
rerun_p = fixed_copy / "0.5" / "p"
if not final_field_is_structured(rerun_u, "volVectorField", "vector"):
return False
if not final_field_is_structured(rerun_p, "volScalarField", "scalar"):
return False
if not equivalent_fields(rerun_u, submitted_u):
return False
if not equivalent_fields(rerun_p, submitted_p):
return False
return True
def evaluate() -> int:
root = Path(os.environ.get("ENGIWORLD_EVAL_ROOT", "/home/user/Desktop"))
try:
return 1 if check_task(root) else 0
except Exception:
return 0
def main() -> int:
print("True" if evaluate() == 1 else "False")
return 0
if __name__ == "__main__":
raise SystemExit(main())
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