File size: 13,567 Bytes
a512fa8 799fa1f a512fa8 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 | from __future__ import annotations
import functools
import importlib
import json
import multiprocessing
import os
import re
import select
import secrets
import shutil
import subprocess
import sys
import tempfile
import time
from pathlib import Path
from typing import Any, Mapping
from scoring.verification import executable_code_payload_contract
_PYTHON_HARNESS_RUNNER = '\nimport builtins\nimport json\nimport os\nimport signal\nimport sys\nimport threading\nimport traceback\n\ndef run():\n trusted_exec = exec\n trusted_compile = compile\n trusted_json_loads = json.loads\n trusted_readline = sys.stdin.readline\n trusted_write = os.write\n trusted_traceback = traceback.print_exc\n builtins_before = dict(builtins.__dict__)\n signal_handlers_before = {\n number: signal.getsignal(number)\n for number in signal.valid_signals()\n if isinstance(number, int)\n }\n namespace = {"__name__": "candidate", "__file__": sys.argv[1]}\n try:\n with open(sys.argv[1], encoding="utf-8") as handle:\n candidate_code = trusted_compile(handle.read(), "candidate.py", "exec")\n trusted_exec(candidate_code, namespace)\n except BaseException:\n trusted_traceback()\n raise SystemExit(1)\n\n builtins_changed = (\n builtins.__dict__.keys() != builtins_before.keys()\n or any(\n builtins.__dict__[name] is not value\n for name, value in builtins_before.items()\n )\n )\n signal_changed = any(\n signal.getsignal(number) is not handler\n for number, handler in signal_handlers_before.items()\n )\n if (\n builtins_changed\n or signal_changed\n or sys.gettrace() is not None\n or sys.getprofile() is not None\n or len(threading.enumerate()) != 1\n ):\n raise SystemExit(91)\n\n trusted_write(1, ("__Q35_CANDIDATE_READY__" + sys.argv[2] + "\\n").encode())\n payload = trusted_json_loads(trusted_readline())\n harness_code = trusted_compile(payload["harness"], "hidden_tests.py", "exec")\n try:\n trusted_exec(harness_code, namespace)\n except BaseException:\n trusted_traceback()\n raise SystemExit(1)\n trusted_write(\n 1,\n ("__Q35_HARNESS_COMPLETE__" + payload["completion_token"] + "\\n").encode(),\n )\n\nrun()\n'
def normalized_output(value: str) -> str:
return '\n'.join((line.rstrip() for line in value.strip().splitlines()))
def output_matches(actual: str, expected: str, checker: str) -> bool:
if checker == 'tokens':
return actual.split() == expected.split()
return normalized_output(actual) == normalized_output(expected)
def run_process(argv: list[str], *, cwd: Path, stdin: str, timeout: float) -> subprocess.CompletedProcess[str]:
return subprocess.run(argv, cwd=cwd, input=stdin, text=True, capture_output=True, timeout=timeout, check=False)
def run_python_harness(candidate: str, harness: str, *, cwd: Path, timeout: float) -> tuple[subprocess.CompletedProcess[str], bool]:
code_path = cwd / 'candidate.py'
code_path.write_text(candidate, encoding='utf-8')
ready_token = secrets.token_hex(32)
completion_token = secrets.token_hex(32)
argv = [sys.executable, '-I', '-S', '-c', _PYTHON_HARNESS_RUNNER, str(code_path), ready_token]
process = subprocess.Popen(argv, cwd=cwd, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, bufsize=0)
assert process.stdout is not None
deadline = time.monotonic() + timeout
stdout_prefix = bytearray()
stderr_prefix = bytearray()
pending = bytearray()
streams = [process.stdout, process.stderr]
ready_marker = f'__Q35_CANDIDATE_READY__{ready_token}'.encode()
ready = False
try:
while not ready and process.stdout in streams:
while b'\n' in pending:
line, _, tail = pending.partition(b'\n')
pending = bytearray(tail)
if line.rstrip(b'\r') == ready_marker:
ready = True
break
if ready:
break
remaining = deadline - time.monotonic()
if remaining <= 0:
raise subprocess.TimeoutExpired(argv, timeout)
readable, _, _ = select.select(streams, [], [], remaining)
if not readable:
raise subprocess.TimeoutExpired(argv, timeout)
for stream in readable:
chunk = os.read(stream.fileno(), 65536)
if not chunk:
streams.remove(stream)
elif stream is process.stdout:
stdout_prefix.extend(chunk)
pending.extend(chunk)
else:
stderr_prefix.extend(chunk)
if len(stdout_prefix) > 1000000:
process.kill()
break
remaining = deadline - time.monotonic()
if remaining <= 0:
raise subprocess.TimeoutExpired(argv, timeout)
stdout, stderr = process.communicate(input=(json.dumps({'harness': harness, 'completion_token': completion_token}) + '\n').encode() if ready else None, timeout=remaining)
except BaseException:
process.kill()
process.communicate()
raise
completed = subprocess.CompletedProcess(argv, process.returncode, (stdout_prefix + stdout).decode('utf-8', errors='replace'), (stderr_prefix + stderr).decode('utf-8', errors='replace'))
marker = f'__Q35_HARNESS_COMPLETE__{completion_token}'
return (completed, ready and marker in completed.stdout.splitlines())
def select_runtime(language: str, code_path: Path, root: Path) -> tuple[list[str], dict[str, Any]]:
if language in {'python', 'py', 'python3', ''}:
return ([sys.executable, '-I', str(code_path)], {'language': 'python'})
if language in {'cpp', 'c++', 'cxx', 'cc'}:
compiler = shutil.which('g++')
if compiler is None:
raise FileNotFoundError('g++ is unavailable')
executable = root / 'candidate'
compiled = subprocess.run([compiler, '-O2', '-std=c++17', str(code_path), '-o', str(executable)], cwd=root, text=True, capture_output=True, timeout=30, check=False)
if compiled.returncode != 0:
return ([], {'language': 'cpp', 'compile_failed': True})
return ([str(executable)], {'language': 'cpp', 'compile_failed': False})
raise ValueError(f'unsupported language: {language}')
@functools.lru_cache(maxsize=1)
def livecodebench_runtime():
runner = Path(__file__).resolve().parents[1] / 'third_party/official_evaluators/LiveCodeBench'
sys.path.insert(0, str(runner))
benchmark = importlib.import_module('lcb_runner.benchmarks.code_generation')
evaluation = importlib.import_module('lcb_runner.evaluation.compute_code_generation_metrics')
return (benchmark.CodeGenerationProblem, functools.partial(check_livecodebench_correctness, evaluation._temp_run))
def check_livecodebench_correctness(run_test, sample, generation, *, timeout, debug=False):
cases = len(json.loads(sample['input_output'])['inputs'])
budget = (timeout + 1) * cases + 5
with multiprocessing.Manager() as manager:
results, metadata = (manager.list(), manager.list())
process = multiprocessing.Process(target=run_test, args=(sample, generation, debug, results, metadata, timeout))
process.start()
try:
process.join(timeout=budget)
global_timeout = process.is_alive()
if global_timeout:
process.kill()
process.join()
facts = {'exitcode': process.exitcode, 'global_timeout': global_timeout, 'global_timeout_seconds': budget, 'missing_result': not bool(results), 'missing_metadata': not bool(metadata), 'scorer_error': bool(process.exitcode and (not global_timeout))}
return (results[0] if results else None, metadata[0] if metadata else None, facts)
finally:
if process.is_alive():
process.kill()
process.join()
process.close()
def run_livecodebench(candidate: str, payload: Mapping[str, Any], timeout: float) -> dict[str, Any]:
problem_class, check_correctness = livecodebench_runtime()
raw = json.loads(Path(str(payload['lcb_payload_path'])).read_text(encoding='utf-8'))
problem = problem_class(**raw)
started = time.perf_counter()
results, metadata, facts = check_correctness(problem.get_evaluation_sample(), candidate, timeout=timeout, debug=False)
passed = [bool(value == True) for value in results or []]
first_failed = next((index for index, value in enumerate(passed) if not value), None)
if facts['global_timeout']:
verdict = 'FAIL'
elif facts['missing_result'] or facts['missing_metadata'] or facts['scorer_error']:
verdict = 'UNCERTAIN'
else:
verdict = 'PASS' if passed and all(passed) else 'FAIL'
return {'verdict': verdict, 'details': {**facts, 'language': 'python', 'livecodebench': True, 'cases': len(passed), 'first_failed_case': first_failed, 'elapsed_seconds': time.perf_counter() - started, 'official_metadata_type': type(metadata).__name__}}
def verify(request: Mapping[str, Any]) -> dict[str, Any]:
code = request.get('candidate')
if not isinstance(code, str) or not code.strip():
return {'verdict': 'FAIL', 'details': 'empty code submission'}
payload = request.get('tests') if 'tests' in request else request.get('verifier_payload')
contract = executable_code_payload_contract(payload, language=request.get('language'))
if not contract['eligible']:
return {'verdict': 'UNCERTAIN', 'details': {'method': 'code_payload_contract_rejected', 'reason': contract['reason']}}
tests = {'cases': payload} if isinstance(payload, list) else payload
assert isinstance(tests, Mapping)
timeout = min(max(int(float(tests.get('time_limit_s', 2))), 1), 30)
checker = str(tests.get('checker', 'exact')).strip().lower()
language = str(request.get('language') or tests.get('language') or 'python').strip().lower()
if contract['mode'] == 'livecodebench':
return run_livecodebench(code, tests, timeout)
with tempfile.TemporaryDirectory(prefix='edgerock-code-verifier-') as temporary:
root = Path(temporary)
suffix = '.cpp' if language in {'cpp', 'c++', 'cxx', 'cc'} else '.py'
code_path = root / f'candidate{suffix}'
source = code
if contract['mode'] == 'python_harness':
harness = tests['python_harness']
assert isinstance(harness, str)
try:
completed, harness_completed = run_python_harness(code, harness, cwd=root, timeout=timeout)
except subprocess.TimeoutExpired:
return {'verdict': 'FAIL', 'details': {'language': 'python', 'harness': True, 'timeout': True}}
return {'verdict': 'PASS' if completed.returncode == 0 and harness_completed else 'UNCERTAIN' if 'ModuleNotFoundError:' in completed.stderr else 'FAIL', 'details': {'language': 'python', 'harness': True, 'harness_completed': harness_completed, 'returncode': completed.returncode, 'missing_modules': re.findall("ModuleNotFoundError: No module named '([^']+)'", completed.stderr)}}
code_path.write_text(source, encoding='utf-8')
try:
argv, runtime = select_runtime(language, code_path, root)
except (FileNotFoundError, ValueError, subprocess.TimeoutExpired) as exc:
return {'verdict': 'UNCERTAIN', 'details': f'runtime unavailable: {type(exc).__name__}: {exc}'}
if runtime.get('compile_failed'):
return {'verdict': 'FAIL', 'details': runtime}
cases = tests.get('cases')
assert isinstance(cases, list) and cases
case_results = []
for index, case in enumerate(cases):
assert isinstance(case, Mapping)
stdin = str(case.get('stdin', ''))
expected = case.get('stdout', case.get('expected_stdout'))
assert isinstance(expected, str)
try:
completed = run_process(argv, cwd=root, stdin=stdin, timeout=timeout)
except subprocess.TimeoutExpired:
return {'verdict': 'FAIL', 'details': {**runtime, 'case': index, 'timeout': True}}
passed = completed.returncode == 0 and output_matches(completed.stdout, expected, checker)
case_results.append({'index': index, 'passed': passed, 'returncode': completed.returncode})
if not passed:
return {'verdict': 'FAIL', 'details': {**runtime, 'cases': case_results}}
return {'verdict': 'PASS', 'details': {**runtime, 'cases': case_results}}
def main() -> int:
result_stream = os.fdopen(os.dup(sys.stdout.fileno()), 'w', buffering=1)
os.dup2(sys.stderr.fileno(), sys.stdout.fileno())
if '--jsonl-worker' in sys.argv[1:]:
for line in sys.stdin:
try:
result = verify(json.loads(line))
except Exception as exc:
result = {'verdict': 'UNCERTAIN', 'details': {'method': 'code_worker_fail_closed', 'error': f'{type(exc).__name__}: {str(exc)[:1000]}'}}
print(json.dumps(result, ensure_ascii=False, sort_keys=True), file=result_stream, flush=True)
return 0
print(json.dumps(verify(json.load(sys.stdin)), ensure_ascii=False, sort_keys=True), file=result_stream, flush=True)
return 0
if __name__ == '__main__':
raise SystemExit(main())
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