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0790cf1 | 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 | #!/usr/bin/env python3
"""
Atomic Dataset Restore for HermesFace
Restore state from HF Dataset with integrity validation and local backup.
Usage:
python3 restore_from_dataset_atomic.py <repo_id> <target_dir> [--force]
"""
import hashlib
import json
import logging
import shutil
import sys
import tempfile
import time
from datetime import datetime
from pathlib import Path
from typing import Any, Dict, List, Optional
from huggingface_hub import HfApi, hf_hub_download
logging.basicConfig(
level=logging.INFO,
format='{"timestamp": "%(asctime)s", "level": "%(levelname)s", "module": "atomic-restore", "message": "%(message)s"}',
)
logger = logging.getLogger(__name__)
class AtomicDatasetRestorer:
def __init__(self, repo_id: str, dataset_path: str = "state"):
self.repo_id = repo_id
self.dataset_path = Path(dataset_path)
self.api = HfApi()
def calculate_checksum(self, file_path: Path) -> str:
h = hashlib.sha256()
with open(file_path, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
h.update(chunk)
return h.hexdigest()
def validate_integrity(self, metadata: Dict[str, Any], state_files: List[Path]) -> bool:
try:
if "checksum" not in metadata:
logger.warning("no_checksum_in_metadata")
return True
calculated = hashlib.sha256(
json.dumps(metadata.get("state_data", {}), sort_keys=True).encode()
).hexdigest()
expected = metadata["checksum"]
valid = calculated == expected
logger.info(f"integrity_check expected={expected} calculated={calculated} valid={valid}")
return valid
except Exception as e:
logger.error(f"integrity_validation_failed error={e}")
return False
def create_backup_before_restore(self, target_dir: Path) -> Optional[Path]:
try:
if not target_dir.exists():
return None
timestamp = datetime.now().strftime("%Y%m%d_%H%M%S")
backup_dir = target_dir.parent / f"state_backup_{timestamp}"
logger.info(f"creating_local_backup source={target_dir} backup={backup_dir}")
shutil.copytree(target_dir, backup_dir)
return backup_dir
except Exception as e:
logger.error(f"local_backup_failed error={e}")
return None
def restore_from_commit(
self, commit_sha: str, target_dir: Path, force: bool = False
) -> Dict[str, Any]:
operation_id = f"restore_{int(time.time())}"
logger.info(f"starting_atomic_restore op={operation_id} commit={commit_sha}")
try:
self.api.repo_info(repo_id=self.repo_id, repo_type="dataset", revision=commit_sha)
except Exception as e:
return {"success": False, "operation_id": operation_id,
"error": f"Invalid commit: {e}", "timestamp": datetime.now().isoformat()}
backup_dir = self.create_backup_before_restore(target_dir)
try:
with tempfile.TemporaryDirectory() as _tmpdir:
files = self.api.list_repo_files(
repo_id=self.repo_id, repo_type="dataset", revision=commit_sha
)
state_files = [f for f in files if f.startswith(str(self.dataset_path))]
if not state_files:
return {"success": False, "operation_id": operation_id,
"error": "No state files found in commit",
"timestamp": datetime.now().isoformat()}
downloaded_files: List[Path] = []
metadata = None
for file_path in state_files:
try:
local = hf_hub_download(
repo_id=self.repo_id,
repo_type="dataset",
filename=file_path,
revision=commit_sha,
)
if local:
downloaded_files.append(Path(local))
if file_path.endswith("metadata.json"):
with open(local, "r") as f:
metadata = json.load(f)
except Exception as e:
logger.error(f"file_download_failed file={file_path} error={e}")
if not metadata:
return {"success": False, "operation_id": operation_id,
"error": "Metadata not found in state files",
"timestamp": datetime.now().isoformat()}
if not self.validate_integrity(metadata, downloaded_files):
return {"success": False, "operation_id": operation_id,
"error": "Data integrity validation failed",
"timestamp": datetime.now().isoformat()}
target_dir.mkdir(parents=True, exist_ok=True)
restored = []
for f in downloaded_files:
if f.name != "metadata.json":
dst = target_dir / f.name
shutil.copy2(f, dst)
restored.append(str(dst))
result = {
"success": True,
"operation_id": operation_id,
"commit_sha": commit_sha,
"backup_dir": str(backup_dir) if backup_dir else None,
"timestamp": datetime.now().isoformat(),
"restored_files": restored,
"metadata": metadata,
}
logger.info(f"atomic_restore_completed {result}")
return result
except Exception as e:
logger.error(f"atomic_restore_failed error={e}")
return {"success": False, "operation_id": operation_id,
"error": str(e), "timestamp": datetime.now().isoformat()}
def restore_latest(self, target_dir: Path, force: bool = False) -> Dict[str, Any]:
try:
repo_info = self.api.repo_info(repo_id=self.repo_id, repo_type="dataset")
if not repo_info.sha:
return {"success": False, "error": "No commit found in repository",
"timestamp": datetime.now().isoformat()}
return self.restore_from_commit(repo_info.sha, target_dir, force)
except Exception as e:
return {"success": False, "error": f"Failed to get latest commit: {e}",
"timestamp": datetime.now().isoformat()}
def main() -> None:
if len(sys.argv) < 3:
print(json.dumps({
"error": "Usage: python restore_from_dataset_atomic.py <repo_id> <target_dir> [--force]",
"status": "error",
}, indent=2))
sys.exit(1)
repo_id = sys.argv[1]
target_dir = sys.argv[2]
force = "--force" in sys.argv
try:
restorer = AtomicDatasetRestorer(repo_id)
result = restorer.restore_latest(Path(target_dir), force)
print(json.dumps(result, indent=2))
if not result.get("success", False):
sys.exit(1)
except Exception as e:
print(json.dumps({"error": str(e), "status": "error"}, indent=2))
sys.exit(1)
if __name__ == "__main__":
main()
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